text fluid card

src/lib/cards/FluidTextCard/CreateFluidTextCardModal.svelte

···
+<script lang="ts">
+	import { Button, Input, Modal, Subheading, Label } from '@foxui/core';
+	import type { CreationModalComponentProps } from '../types';
+
+	let { item = $bindable(), oncreate, oncancel }: CreationModalComponentProps = $props();
+
+	let text = $state(item.cardData?.text || '');
+
+	function handleCreate() {
+		if (!text.trim()) return;
+		item.cardData.text = text.trim();
+		oncreate();
+	}
+</script>
+
+<Modal open={true} closeButton={false}>
+	<Subheading>Enter text for fluid effect</Subheading>
+	<div class="mt-2">
+		<Label class="mb-1 text-xs">Text</Label>
+		<Input
+			bind:value={text}
+			placeholder="Enter your text..."
+			autofocus
+			onkeydown={(e) => {
+				if (e.key === 'Enter') handleCreate();
+			}}
+		/>
+	</div>
+
+	<div class="mt-4 flex justify-end gap-2">
+		<Button onclick={oncancel} variant="ghost">Cancel</Button>
+		<Button onclick={handleCreate} disabled={!text.trim()}>Create</Button>
+	</div>
+</Modal>

src/lib/cards/FluidTextCard/FluidTextCard.svelte

···
+<script lang="ts">
+	import type { ContentComponentProps } from '../types';
+	import { onMount, onDestroy, tick } from 'svelte';
+	import ditheringTextureUrl from './text_effect_fluid-main/LDR_LLL1_0.png';
+
+	let { item }: ContentComponentProps = $props();
+
+	let container: HTMLDivElement;
+	let fluidCanvas: HTMLCanvasElement;
+	let maskCanvas: HTMLCanvasElement;
+	let animationId: number;
+	let splatIntervalId: ReturnType<typeof setInterval>;
+	let isInitialized = $state(false);
+	let resizeObserver: ResizeObserver | null = null;
+
+	// Get text from card data
+	const text = $derived((item.cardData?.text as string) || 'hello');
+	const fontWeight = $derived((item.cardData?.fontWeight as string) || '900');
+	const fontFamily = $derived((item.cardData?.fontFamily as string) || 'Arial');
+	const fontSize = $derived((item.cardData?.fontSize as number) || 0.33);
+
+	// Draw text mask on overlay canvas
+	function drawOverlayCanvas() {
+		if (!maskCanvas || !container) return;
+
+		const rect = container.getBoundingClientRect();
+		if (rect.width === 0 || rect.height === 0) return;
+
+		const dpr = window.devicePixelRatio || 1;
+
+		maskCanvas.width = rect.width * dpr;
+		maskCanvas.height = rect.height * dpr;
+
+		const ctx = maskCanvas.getContext('2d')!;
+		ctx.scale(dpr, dpr);
+
+		ctx.fillStyle = 'black';
+		ctx.fillRect(0, 0, rect.width, rect.height);
+
+		const textFontSize = Math.round(rect.width * fontSize);
+		ctx.font = fontWeight + ' ' + textFontSize + 'px ' + fontFamily;
+
+		ctx.strokeStyle = 'rgba(255, 255, 255, 0.3)';
+		ctx.lineWidth = 2;
+		ctx.textBaseline = 'middle';
+		ctx.textAlign = 'center';
+
+		ctx.strokeText(text, rect.width / 2, rect.height / 2);
+		ctx.globalCompositeOperation = 'destination-out';
+		ctx.fillText(text, rect.width / 2, rect.height / 2);
+	}
+
+	// Redraw overlay when text settings change (only after initialization)
+	$effect(() => {
+		// Access all reactive values to track them
+		text;
+		fontWeight;
+		fontFamily;
+		fontSize;
+		// Only redraw if already initialized
+		if (isInitialized) {
+			drawOverlayCanvas();
+		}
+	});
+
+	onMount(async () => {
+		// Wait for layout to settle
+		await tick();
+		initFluidSimulation();
+	});
+
+	onDestroy(() => {
+		if (animationId) cancelAnimationFrame(animationId);
+		if (splatIntervalId) clearInterval(splatIntervalId);
+		if (resizeObserver) resizeObserver.disconnect();
+	});
+
+	function initFluidSimulation() {
+		if (!fluidCanvas || !maskCanvas || !container) return;
+
+		drawOverlayCanvas();
+
+		// Simulation config
+		const config = {
+			SIM_RESOLUTION: 128,
+			DYE_RESOLUTION: 1024,
+			CAPTURE_RESOLUTION: 512,
+			DENSITY_DISSIPATION: 1.0,
+			VELOCITY_DISSIPATION: 0.1,
+			PRESSURE: 0.8,
+			PRESSURE_ITERATIONS: 20,
+			CURL: 30,
+			SPLAT_RADIUS: 0.25,
+			SPLAT_FORCE: 1000,
+			SHADING: true,
+			COLORFUL: true,
+			COLOR_UPDATE_SPEED: 10,
+			PAUSED: false,
+			BACK_COLOR: { r: 0, g: 0, b: 0 },
+			TRANSPARENT: false,
+			BLOOM: false,
+			BLOOM_ITERATIONS: 8,
+			BLOOM_RESOLUTION: 256,
+			BLOOM_INTENSITY: 0.8,
+			BLOOM_THRESHOLD: 0.8,
+			BLOOM_SOFT_KNEE: 0.7,
+			SUNRAYS: true,
+			SUNRAYS_RESOLUTION: 196,
+			SUNRAYS_WEIGHT: 1.0,
+			START_HUE: 0.5,
+			END_HUE: 1.0,
+			RENDER_SPEED: 0.4
+		};
+
+		function PointerPrototype() {
+			return {
+				id: -1,
+				texcoordX: 0,
+				texcoordY: 0,
+				prevTexcoordX: 0,
+				prevTexcoordY: 0,
+				deltaX: 0,
+				deltaY: 0,
+				down: false,
+				moved: false,
+				color: [30, 0, 300] as [number, number, number]
+			};
+		}
+
+		type Pointer = ReturnType<typeof PointerPrototype>;
+		let pointers: Pointer[] = [PointerPrototype()];
+		let splatStack: number[] = [];
+
+		const { gl, ext } = getWebGLContext(fluidCanvas);
+		if (!gl) return;
+
+		if (isMobile()) {
+			config.DYE_RESOLUTION = 512;
+		}
+		if (!ext.supportLinearFiltering) {
+			config.DYE_RESOLUTION = 512;
+			config.SHADING = false;
+			config.BLOOM = false;
+			config.SUNRAYS = false;
+		}
+
+		function getWebGLContext(canvas: HTMLCanvasElement) {
+			const params = {
+				alpha: true,
+				depth: false,
+				stencil: true,
+				antialias: false,
+				preserveDrawingBuffer: false
+			};
+
+			let gl = canvas.getContext('webgl2', params) as WebGL2RenderingContext | null;
+			const isWebGL2 = !!gl;
+			if (!isWebGL2) {
+				gl = (canvas.getContext('webgl', params) ||
+					canvas.getContext('experimental-webgl', params)) as WebGL2RenderingContext | null;
+			}
+
+			if (!gl) return { gl: null, ext: { supportLinearFiltering: false } as any };
+
+			let halfFloat: any;
+			let supportLinearFiltering: any;
+			if (isWebGL2) {
+				gl.getExtension('EXT_color_buffer_float');
+				supportLinearFiltering = gl.getExtension('OES_texture_float_linear');
+			} else {
+				halfFloat = gl.getExtension('OES_texture_half_float');
+				supportLinearFiltering = gl.getExtension('OES_texture_half_float_linear');
+			}
+
+			gl.clearColor(0.0, 0.0, 0.0, 1.0);
+
+			const halfFloatTexType = isWebGL2 ? gl.HALF_FLOAT : halfFloat?.HALF_FLOAT_OES;
+			let formatRGBA: any;
+			let formatRG: any;
+			let formatR: any;
+
+			if (isWebGL2) {
+				formatRGBA = getSupportedFormat(gl, gl.RGBA16F, gl.RGBA, halfFloatTexType);
+				formatRG = getSupportedFormat(gl, gl.RG16F, gl.RG, halfFloatTexType);
+				formatR = getSupportedFormat(gl, gl.R16F, gl.RED, halfFloatTexType);
+			} else {
+				formatRGBA = getSupportedFormat(gl, gl.RGBA, gl.RGBA, halfFloatTexType);
+				formatRG = getSupportedFormat(gl, gl.RGBA, gl.RGBA, halfFloatTexType);
+				formatR = getSupportedFormat(gl, gl.RGBA, gl.RGBA, halfFloatTexType);
+			}
+
+			return {
+				gl,
+				ext: {
+					formatRGBA,
+					formatRG,
+					formatR,
+					halfFloatTexType,
+					supportLinearFiltering
+				}
+			};
+		}
+
+		function getSupportedFormat(
+			gl: WebGL2RenderingContext,
+			internalFormat: number,
+			format: number,
+			type: number
+		): { internalFormat: number; format: number } | null {
+			if (!supportRenderTextureFormat(gl, internalFormat, format, type)) {
+				switch (internalFormat) {
+					case gl.R16F:
+						return getSupportedFormat(gl, gl.RG16F, gl.RG, type);
+					case gl.RG16F:
+						return getSupportedFormat(gl, gl.RGBA16F, gl.RGBA, type);
+					default:
+						return null;
+				}
+			}
+			return { internalFormat, format };
+		}
+
+		function supportRenderTextureFormat(
+			gl: WebGL2RenderingContext,
+			internalFormat: number,
+			format: number,
+			type: number
+		) {
+			const texture = gl.createTexture();
+			gl.bindTexture(gl.TEXTURE_2D, texture);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+			gl.texImage2D(gl.TEXTURE_2D, 0, internalFormat, 4, 4, 0, format, type, null);
+
+			const fbo = gl.createFramebuffer();
+			gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+			gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0);
+
+			const status = gl.checkFramebufferStatus(gl.FRAMEBUFFER);
+			return status === gl.FRAMEBUFFER_COMPLETE;
+		}
+
+		function isMobile() {
+			return /Mobi|Android/i.test(navigator.userAgent);
+		}
+
+		class Material {
+			vertexShader: WebGLShader;
+			fragmentShaderSource: string;
+			programs: Record<number, WebGLProgram> = {};
+			activeProgram: WebGLProgram | null = null;
+			uniforms: Record<string, WebGLUniformLocation | null> = {};
+
+			constructor(vertexShader: WebGLShader, fragmentShaderSource: string) {
+				this.vertexShader = vertexShader;
+				this.fragmentShaderSource = fragmentShaderSource;
+			}
+
+			setKeywords(keywords: string[]) {
+				let hash = 0;
+				for (let i = 0; i < keywords.length; i++) hash += hashCode(keywords[i]);
+
+				let program = this.programs[hash];
+				if (!program) {
+					const fragmentShader = compileShader(
+						gl.FRAGMENT_SHADER,
+						this.fragmentShaderSource,
+						keywords
+					);
+					program = createProgram(this.vertexShader, fragmentShader);
+					this.programs[hash] = program;
+				}
+
+				if (program === this.activeProgram) return;
+
+				this.uniforms = getUniforms(program);
+				this.activeProgram = program;
+			}
+
+			bind() {
+				gl.useProgram(this.activeProgram);
+			}
+		}
+
+		class Program {
+			uniforms: Record<string, WebGLUniformLocation | null> = {};
+			program: WebGLProgram;
+
+			constructor(vertexShader: WebGLShader, fragmentShader: WebGLShader) {
+				this.program = createProgram(vertexShader, fragmentShader);
+				this.uniforms = getUniforms(this.program);
+			}
+
+			bind() {
+				gl.useProgram(this.program);
+			}
+		}
+
+		function createProgram(vertexShader: WebGLShader, fragmentShader: WebGLShader) {
+			const program = gl.createProgram()!;
+			gl.attachShader(program, vertexShader);
+			gl.attachShader(program, fragmentShader);
+			gl.linkProgram(program);
+
+			if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {
+				console.trace(gl.getProgramInfoLog(program));
+			}
+
+			return program;
+		}
+
+		function getUniforms(program: WebGLProgram) {
+			const uniforms: Record<string, WebGLUniformLocation | null> = {};
+			const uniformCount = gl.getProgramParameter(program, gl.ACTIVE_UNIFORMS);
+			for (let i = 0; i < uniformCount; i++) {
+				const uniformName = gl.getActiveUniform(program, i)!.name;
+				uniforms[uniformName] = gl.getUniformLocation(program, uniformName);
+			}
+			return uniforms;
+		}
+
+		function compileShader(type: number, source: string, keywords?: string[]) {
+			source = addKeywords(source, keywords);
+
+			const shader = gl.createShader(type)!;
+			gl.shaderSource(shader, source);
+			gl.compileShader(shader);
+
+			if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
+				console.trace(gl.getShaderInfoLog(shader));
+			}
+
+			return shader;
+		}
+
+		function addKeywords(source: string, keywords?: string[]) {
+			if (!keywords) return source;
+			let keywordsString = '';
+			keywords.forEach((keyword) => {
+				keywordsString += '#define ' + keyword + '\n';
+			});
+			return keywordsString + source;
+		}
+
+		const baseVertexShader = compileShader(
+			gl.VERTEX_SHADER,
+			`
+			precision highp float;
+			attribute vec2 aPosition;
+			varying vec2 vUv;
+			varying vec2 vL;
+			varying vec2 vR;
+			varying vec2 vT;
+			varying vec2 vB;
+			uniform vec2 texelSize;
+			void main () {
+				vUv = aPosition * 0.5 + 0.5;
+				vL = vUv - vec2(texelSize.x, 0.0);
+				vR = vUv + vec2(texelSize.x, 0.0);
+				vT = vUv + vec2(0.0, texelSize.y);
+				vB = vUv - vec2(0.0, texelSize.y);
+				gl_Position = vec4(aPosition, 0.0, 1.0);
+			}
+		`
+		);
+
+		const blurVertexShader = compileShader(
+			gl.VERTEX_SHADER,
+			`
+			precision highp float;
+			attribute vec2 aPosition;
+			varying vec2 vUv;
+			varying vec2 vL;
+			varying vec2 vR;
+			uniform vec2 texelSize;
+			void main () {
+				vUv = aPosition * 0.5 + 0.5;
+				float offset = 1.33333333;
+				vL = vUv - texelSize * offset;
+				vR = vUv + texelSize * offset;
+				gl_Position = vec4(aPosition, 0.0, 1.0);
+			}
+		`
+		);
+
+		const blurShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision mediump float;
+			precision mediump sampler2D;
+			varying vec2 vUv;
+			varying vec2 vL;
+			varying vec2 vR;
+			uniform sampler2D uTexture;
+			void main () {
+				vec4 sum = texture2D(uTexture, vUv) * 0.29411764;
+				sum += texture2D(uTexture, vL) * 0.35294117;
+				sum += texture2D(uTexture, vR) * 0.35294117;
+				gl_FragColor = sum;
+			}
+		`
+		);
+
+		const copyShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision mediump float;
+			precision mediump sampler2D;
+			varying highp vec2 vUv;
+			uniform sampler2D uTexture;
+			void main () {
+				gl_FragColor = texture2D(uTexture, vUv);
+			}
+		`
+		);
+
+		const clearShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision mediump float;
+			precision mediump sampler2D;
+			varying highp vec2 vUv;
+			uniform sampler2D uTexture;
+			uniform float value;
+			void main () {
+				gl_FragColor = value * texture2D(uTexture, vUv);
+			}
+		`
+		);
+
+		const colorShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision mediump float;
+			uniform vec4 color;
+			void main () {
+				gl_FragColor = color;
+			}
+		`
+		);
+
+		const displayShaderSource = `
+			precision highp float;
+			precision highp sampler2D;
+			varying vec2 vUv;
+			varying vec2 vL;
+			varying vec2 vR;
+			varying vec2 vT;
+			varying vec2 vB;
+			uniform sampler2D uTexture;
+			uniform sampler2D uBloom;
+			uniform sampler2D uSunrays;
+			uniform sampler2D uDithering;
+			uniform vec2 ditherScale;
+			uniform vec2 texelSize;
+			vec3 linearToGamma (vec3 color) {
+				color = max(color, vec3(0));
+				return max(1.055 * pow(color, vec3(0.416666667)) - 0.055, vec3(0));
+			}
+			void main () {
+				vec3 c = texture2D(uTexture, vUv).rgb;
+			#ifdef SHADING
+				vec3 lc = texture2D(uTexture, vL).rgb;
+				vec3 rc = texture2D(uTexture, vR).rgb;
+				vec3 tc = texture2D(uTexture, vT).rgb;
+				vec3 bc = texture2D(uTexture, vB).rgb;
+				float dx = length(rc) - length(lc);
+				float dy = length(tc) - length(bc);
+				vec3 n = normalize(vec3(dx, dy, length(texelSize)));
+				vec3 l = vec3(0.0, 0.0, 1.0);
+				float diffuse = clamp(dot(n, l) + 0.7, 0.7, 1.0);
+				c *= diffuse;
+			#endif
+			#ifdef BLOOM
+				vec3 bloom = texture2D(uBloom, vUv).rgb;
+			#endif
+			#ifdef SUNRAYS
+				float sunrays = texture2D(uSunrays, vUv).r;
+				c *= sunrays;
+			#ifdef BLOOM
+				bloom *= sunrays;
+			#endif
+			#endif
+			#ifdef BLOOM
+				float noise = texture2D(uDithering, vUv * ditherScale).r;
+				noise = noise * 2.0 - 1.0;
+				bloom += noise / 255.0;
+				bloom = linearToGamma(bloom);
+				c += bloom;
+			#endif
+				float a = max(c.r, max(c.g, c.b));
+				gl_FragColor = vec4(c, a);
+			}
+		`;
+
+		const splatShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision highp float;
+			precision highp sampler2D;
+			varying vec2 vUv;
+			uniform sampler2D uTarget;
+			uniform float aspectRatio;
+			uniform vec3 color;
+			uniform vec2 point;
+			uniform float radius;
+			void main () {
+				vec2 p = vUv - point.xy;
+				p.x *= aspectRatio;
+				vec3 splat = exp(-dot(p, p) / radius) * color;
+				vec3 base = texture2D(uTarget, vUv).xyz;
+				gl_FragColor = vec4(base + splat, 1.0);
+			}
+		`
+		);
+
+		const advectionShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision highp float;
+			precision highp sampler2D;
+			varying vec2 vUv;
+			uniform sampler2D uVelocity;
+			uniform sampler2D uSource;
+			uniform vec2 texelSize;
+			uniform vec2 dyeTexelSize;
+			uniform float dt;
+			uniform float dissipation;
+			vec4 bilerp (sampler2D sam, vec2 uv, vec2 tsize) {
+				vec2 st = uv / tsize - 0.5;
+				vec2 iuv = floor(st);
+				vec2 fuv = fract(st);
+				vec4 a = texture2D(sam, (iuv + vec2(0.5, 0.5)) * tsize);
+				vec4 b = texture2D(sam, (iuv + vec2(1.5, 0.5)) * tsize);
+				vec4 c = texture2D(sam, (iuv + vec2(0.5, 1.5)) * tsize);
+				vec4 d = texture2D(sam, (iuv + vec2(1.5, 1.5)) * tsize);
+				return mix(mix(a, b, fuv.x), mix(c, d, fuv.x), fuv.y);
+			}
+			void main () {
+			#ifdef MANUAL_FILTERING
+				vec2 coord = vUv - dt * bilerp(uVelocity, vUv, texelSize).xy * texelSize;
+				vec4 result = bilerp(uSource, coord, dyeTexelSize);
+			#else
+				vec2 coord = vUv - dt * texture2D(uVelocity, vUv).xy * texelSize;
+				vec4 result = texture2D(uSource, coord);
+			#endif
+				float decay = 1.0 + dissipation * dt;
+				gl_FragColor = result / decay;
+			}`,
+			ext.supportLinearFiltering ? undefined : ['MANUAL_FILTERING']
+		);
+
+		const divergenceShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision mediump float;
+			precision mediump sampler2D;
+			varying highp vec2 vUv;
+			varying highp vec2 vL;
+			varying highp vec2 vR;
+			varying highp vec2 vT;
+			varying highp vec2 vB;
+			uniform sampler2D uVelocity;
+			void main () {
+				float L = texture2D(uVelocity, vL).x;
+				float R = texture2D(uVelocity, vR).x;
+				float T = texture2D(uVelocity, vT).y;
+				float B = texture2D(uVelocity, vB).y;
+				vec2 C = texture2D(uVelocity, vUv).xy;
+				if (vL.x < 0.0) { L = -C.x; }
+				if (vR.x > 1.0) { R = -C.x; }
+				if (vT.y > 1.0) { T = -C.y; }
+				if (vB.y < 0.0) { B = -C.y; }
+				float div = 0.5 * (R - L + T - B);
+				gl_FragColor = vec4(div, 0.0, 0.0, 1.0);
+			}
+		`
+		);
+
+		const curlShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision mediump float;
+			precision mediump sampler2D;
+			varying highp vec2 vUv;
+			varying highp vec2 vL;
+			varying highp vec2 vR;
+			varying highp vec2 vT;
+			varying highp vec2 vB;
+			uniform sampler2D uVelocity;
+			void main () {
+				float L = texture2D(uVelocity, vL).y;
+				float R = texture2D(uVelocity, vR).y;
+				float T = texture2D(uVelocity, vT).x;
+				float B = texture2D(uVelocity, vB).x;
+				float vorticity = R - L - T + B;
+				gl_FragColor = vec4(0.5 * vorticity, 0.0, 0.0, 1.0);
+			}
+		`
+		);
+
+		const vorticityShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision highp float;
+			precision highp sampler2D;
+			varying vec2 vUv;
+			varying vec2 vL;
+			varying vec2 vR;
+			varying vec2 vT;
+			varying vec2 vB;
+			uniform sampler2D uVelocity;
+			uniform sampler2D uCurl;
+			uniform float curl;
+			uniform float dt;
+			void main () {
+				float L = texture2D(uCurl, vL).x;
+				float R = texture2D(uCurl, vR).x;
+				float T = texture2D(uCurl, vT).x;
+				float B = texture2D(uCurl, vB).x;
+				float C = texture2D(uCurl, vUv).x;
+				vec2 force = 0.5 * vec2(abs(T) - abs(B), abs(R) - abs(L));
+				force /= length(force) + 0.0001;
+				force *= curl * C;
+				force.y *= -1.0;
+				vec2 velocity = texture2D(uVelocity, vUv).xy;
+				velocity += force * dt;
+				velocity = min(max(velocity, -1000.0), 1000.0);
+				gl_FragColor = vec4(velocity, 0.0, 1.0);
+			}
+		`
+		);
+
+		const pressureShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision mediump float;
+			precision mediump sampler2D;
+			varying highp vec2 vUv;
+			varying highp vec2 vL;
+			varying highp vec2 vR;
+			varying highp vec2 vT;
+			varying highp vec2 vB;
+			uniform sampler2D uPressure;
+			uniform sampler2D uDivergence;
+			void main () {
+				float L = texture2D(uPressure, vL).x;
+				float R = texture2D(uPressure, vR).x;
+				float T = texture2D(uPressure, vT).x;
+				float B = texture2D(uPressure, vB).x;
+				float C = texture2D(uPressure, vUv).x;
+				float divergence = texture2D(uDivergence, vUv).x;
+				float pressure = (L + R + B + T - divergence) * 0.25;
+				gl_FragColor = vec4(pressure, 0.0, 0.0, 1.0);
+			}
+		`
+		);
+
+		const gradientSubtractShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision mediump float;
+			precision mediump sampler2D;
+			varying highp vec2 vUv;
+			varying highp vec2 vL;
+			varying highp vec2 vR;
+			varying highp vec2 vT;
+			varying highp vec2 vB;
+			uniform sampler2D uPressure;
+			uniform sampler2D uVelocity;
+			void main () {
+				float L = texture2D(uPressure, vL).x;
+				float R = texture2D(uPressure, vR).x;
+				float T = texture2D(uPressure, vT).x;
+				float B = texture2D(uPressure, vB).x;
+				vec2 velocity = texture2D(uVelocity, vUv).xy;
+				velocity.xy -= vec2(R - L, T - B);
+				gl_FragColor = vec4(velocity, 0.0, 1.0);
+			}
+		`
+		);
+
+		const sunraysMaskShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision highp float;
+			precision highp sampler2D;
+			varying vec2 vUv;
+			uniform sampler2D uTexture;
+			void main () {
+				vec4 c = texture2D(uTexture, vUv);
+				float br = max(c.r, max(c.g, c.b));
+				c.a = 1.0 - min(max(br * 20.0, 0.0), 0.8);
+				gl_FragColor = c;
+			}
+		`
+		);
+
+		const sunraysShader = compileShader(
+			gl.FRAGMENT_SHADER,
+			`
+			precision highp float;
+			precision highp sampler2D;
+			varying vec2 vUv;
+			uniform sampler2D uTexture;
+			uniform float weight;
+			#define ITERATIONS 16
+			void main () {
+				float Density = 0.3;
+				float Decay = 0.95;
+				float Exposure = 0.7;
+				vec2 coord = vUv;
+				vec2 dir = vUv - 0.5;
+				dir *= 1.0 / float(ITERATIONS) * Density;
+				float illuminationDecay = 1.0;
+				float color = texture2D(uTexture, vUv).a;
+				for (int i = 0; i < ITERATIONS; i++) {
+					coord -= dir;
+					float col = texture2D(uTexture, coord).a;
+					color += col * illuminationDecay * weight;
+					illuminationDecay *= Decay;
+				}
+				gl_FragColor = vec4(color * Exposure, 0.0, 0.0, 1.0);
+			}
+		`
+		);
+
+		// Setup blit
+		gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer());
+		gl.bufferData(
+			gl.ARRAY_BUFFER,
+			new Float32Array([-1, -1, -1, 1, 1, 1, 1, -1]),
+			gl.STATIC_DRAW
+		);
+		gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.createBuffer());
+		gl.bufferData(
+			gl.ELEMENT_ARRAY_BUFFER,
+			new Uint16Array([0, 1, 2, 0, 2, 3]),
+			gl.STATIC_DRAW
+		);
+		gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0);
+		gl.enableVertexAttribArray(0);
+
+		type FBO = {
+			texture: WebGLTexture;
+			fbo: WebGLFramebuffer;
+			width: number;
+			height: number;
+			texelSizeX: number;
+			texelSizeY: number;
+			attach: (id: number) => number;
+		};
+
+		type DoubleFBO = {
+			width: number;
+			height: number;
+			texelSizeX: number;
+			texelSizeY: number;
+			read: FBO;
+			write: FBO;
+			swap: () => void;
+		};
+
+		function blit(target: FBO | null, clear = false) {
+			if (target === null) {
+				gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
+				gl.bindFramebuffer(gl.FRAMEBUFFER, null);
+			} else {
+				gl.viewport(0, 0, target.width, target.height);
+				gl.bindFramebuffer(gl.FRAMEBUFFER, target.fbo);
+			}
+			if (clear) {
+				gl.clearColor(0.0, 0.0, 0.0, 1.0);
+				gl.clear(gl.COLOR_BUFFER_BIT);
+			}
+			gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0);
+		}
+
+		let dye: DoubleFBO;
+		let velocity: DoubleFBO;
+		let divergence: FBO;
+		let curl: FBO;
+		let pressure: DoubleFBO;
+		let sunrays: FBO;
+		let sunraysTemp: FBO;
+
+		const ditheringTexture = createTextureAsync(ditheringTextureUrl);
+
+		const blurProgram = new Program(blurVertexShader, blurShader);
+		const copyProgram = new Program(baseVertexShader, copyShader);
+		const clearProgram = new Program(baseVertexShader, clearShader);
+		const colorProgram = new Program(baseVertexShader, colorShader);
+		const splatProgram = new Program(baseVertexShader, splatShader);
+		const advectionProgram = new Program(baseVertexShader, advectionShader);
+		const divergenceProgram = new Program(baseVertexShader, divergenceShader);
+		const curlProgram = new Program(baseVertexShader, curlShader);
+		const vorticityProgram = new Program(baseVertexShader, vorticityShader);
+		const pressureProgram = new Program(baseVertexShader, pressureShader);
+		const gradienSubtractProgram = new Program(baseVertexShader, gradientSubtractShader);
+		const sunraysMaskProgram = new Program(baseVertexShader, sunraysMaskShader);
+		const sunraysProgram = new Program(baseVertexShader, sunraysShader);
+
+		const displayMaterial = new Material(baseVertexShader, displayShaderSource);
+
+		function getResolution(resolution: number) {
+			let aspectRatio = gl.drawingBufferWidth / gl.drawingBufferHeight;
+			if (aspectRatio < 1) aspectRatio = 1.0 / aspectRatio;
+			const min = Math.round(resolution);
+			const max = Math.round(resolution * aspectRatio);
+			if (gl.drawingBufferWidth > gl.drawingBufferHeight) return { width: max, height: min };
+			else return { width: min, height: max };
+		}
+
+		function createFBO(
+			w: number,
+			h: number,
+			internalFormat: number,
+			format: number,
+			type: number,
+			param: number
+		): FBO {
+			gl.activeTexture(gl.TEXTURE0);
+			const texture = gl.createTexture()!;
+			gl.bindTexture(gl.TEXTURE_2D, texture);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, param);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, param);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+			gl.texImage2D(gl.TEXTURE_2D, 0, internalFormat, w, h, 0, format, type, null);
+
+			const fbo = gl.createFramebuffer()!;
+			gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+			gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0);
+			gl.viewport(0, 0, w, h);
+			gl.clear(gl.COLOR_BUFFER_BIT);
+
+			const texelSizeX = 1.0 / w;
+			const texelSizeY = 1.0 / h;
+
+			return {
+				texture,
+				fbo,
+				width: w,
+				height: h,
+				texelSizeX,
+				texelSizeY,
+				attach(id: number) {
+					gl.activeTexture(gl.TEXTURE0 + id);
+					gl.bindTexture(gl.TEXTURE_2D, texture);
+					return id;
+				}
+			};
+		}
+
+		function createDoubleFBO(
+			w: number,
+			h: number,
+			internalFormat: number,
+			format: number,
+			type: number,
+			param: number
+		): DoubleFBO {
+			let fbo1 = createFBO(w, h, internalFormat, format, type, param);
+			let fbo2 = createFBO(w, h, internalFormat, format, type, param);
+
+			return {
+				width: w,
+				height: h,
+				texelSizeX: fbo1.texelSizeX,
+				texelSizeY: fbo1.texelSizeY,
+				get read() {
+					return fbo1;
+				},
+				set read(value) {
+					fbo1 = value;
+				},
+				get write() {
+					return fbo2;
+				},
+				set write(value) {
+					fbo2 = value;
+				},
+				swap() {
+					const temp = fbo1;
+					fbo1 = fbo2;
+					fbo2 = temp;
+				}
+			};
+		}
+
+		function resizeFBO(
+			target: FBO,
+			w: number,
+			h: number,
+			internalFormat: number,
+			format: number,
+			type: number,
+			param: number
+		) {
+			const newFBO = createFBO(w, h, internalFormat, format, type, param);
+			copyProgram.bind();
+			gl.uniform1i(copyProgram.uniforms.uTexture, target.attach(0));
+			blit(newFBO);
+			return newFBO;
+		}
+
+		function resizeDoubleFBO(
+			target: DoubleFBO,
+			w: number,
+			h: number,
+			internalFormat: number,
+			format: number,
+			type: number,
+			param: number
+		) {
+			if (target.width === w && target.height === h) return target;
+			target.read = resizeFBO(target.read, w, h, internalFormat, format, type, param);
+			target.write = createFBO(w, h, internalFormat, format, type, param);
+			target.width = w;
+			target.height = h;
+			target.texelSizeX = 1.0 / w;
+			target.texelSizeY = 1.0 / h;
+			return target;
+		}
+
+		function createTextureAsync(url: string) {
+			const texture = gl.createTexture()!;
+			gl.bindTexture(gl.TEXTURE_2D, texture);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
+			gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
+			gl.texImage2D(
+				gl.TEXTURE_2D,
+				0,
+				gl.RGB,
+				1,
+				1,
+				0,
+				gl.RGB,
+				gl.UNSIGNED_BYTE,
+				new Uint8Array([255, 255, 255])
+			);
+
+			const obj = {
+				texture,
+				width: 1,
+				height: 1,
+				attach(id: number) {
+					gl.activeTexture(gl.TEXTURE0 + id);
+					gl.bindTexture(gl.TEXTURE_2D, texture);
+					return id;
+				}
+			};
+
+			const image = new Image();
+			image.onload = () => {
+				obj.width = image.width;
+				obj.height = image.height;
+				gl.bindTexture(gl.TEXTURE_2D, texture);
+				gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, image);
+			};
+			image.src = url;
+
+			return obj;
+		}
+
+		function initFramebuffers() {
+			const simRes = getResolution(config.SIM_RESOLUTION);
+			const dyeRes = getResolution(config.DYE_RESOLUTION);
+
+			const texType = ext.halfFloatTexType;
+			const rgba = ext.formatRGBA;
+			const rg = ext.formatRG;
+			const r = ext.formatR;
+			const filtering = ext.supportLinearFiltering ? gl.LINEAR : gl.NEAREST;
+
+			gl.disable(gl.BLEND);
+
+			if (!dye) {
+				dye = createDoubleFBO(
+					dyeRes.width,
+					dyeRes.height,
+					rgba.internalFormat,
+					rgba.format,
+					texType,
+					filtering
+				);
+			} else {
+				dye = resizeDoubleFBO(
+					dye,
+					dyeRes.width,
+					dyeRes.height,
+					rgba.internalFormat,
+					rgba.format,
+					texType,
+					filtering
+				);
+			}
+
+			if (!velocity) {
+				velocity = createDoubleFBO(
+					simRes.width,
+					simRes.height,
+					rg.internalFormat,
+					rg.format,
+					texType,
+					filtering
+				);
+			} else {
+				velocity = resizeDoubleFBO(
+					velocity,
+					simRes.width,
+					simRes.height,
+					rg.internalFormat,
+					rg.format,
+					texType,
+					filtering
+				);
+			}
+
+			divergence = createFBO(
+				simRes.width,
+				simRes.height,
+				r.internalFormat,
+				r.format,
+				texType,
+				gl.NEAREST
+			);
+			curl = createFBO(simRes.width, simRes.height, r.internalFormat, r.format, texType, gl.NEAREST);
+			pressure = createDoubleFBO(
+				simRes.width,
+				simRes.height,
+				r.internalFormat,
+				r.format,
+				texType,
+				gl.NEAREST
+			);
+
+			initSunraysFramebuffers();
+		}
+
+		function initSunraysFramebuffers() {
+			const res = getResolution(config.SUNRAYS_RESOLUTION);
+			const texType = ext.halfFloatTexType;
+			const r = ext.formatR;
+			const filtering = ext.supportLinearFiltering ? gl.LINEAR : gl.NEAREST;
+
+			sunrays = createFBO(res.width, res.height, r.internalFormat, r.format, texType, filtering);
+			sunraysTemp = createFBO(res.width, res.height, r.internalFormat, r.format, texType, filtering);
+		}
+
+		function updateKeywords() {
+			const displayKeywords: string[] = [];
+			if (config.SHADING) displayKeywords.push('SHADING');
+			if (config.SUNRAYS) displayKeywords.push('SUNRAYS');
+			displayMaterial.setKeywords(displayKeywords);
+		}
+
+		function scaleByPixelRatio(input: number) {
+			const pixelRatio = window.devicePixelRatio || 1;
+			return Math.floor(input * pixelRatio);
+		}
+
+		function resizeCanvas() {
+			const width = scaleByPixelRatio(fluidCanvas.clientWidth);
+			const height = scaleByPixelRatio(fluidCanvas.clientHeight);
+			if (fluidCanvas.width !== width || fluidCanvas.height !== height) {
+				fluidCanvas.width = width;
+				fluidCanvas.height = height;
+				drawOverlayCanvas();
+				return true;
+			}
+			return false;
+		}
+
+		function HSVtoRGB(h: number, s: number, v: number) {
+			let r = 0,
+				g = 0,
+				b = 0;
+			const i = Math.floor(h * 6);
+			const f = h * 6 - i;
+			const p = v * (1 - s);
+			const q = v * (1 - f * s);
+			const t = v * (1 - (1 - f) * s);
+
+			switch (i % 6) {
+				case 0:
+					(r = v), (g = t), (b = p);
+					break;
+				case 1:
+					(r = q), (g = v), (b = p);
+					break;
+				case 2:
+					(r = p), (g = v), (b = t);
+					break;
+				case 3:
+					(r = p), (g = q), (b = v);
+					break;
+				case 4:
+					(r = t), (g = p), (b = v);
+					break;
+				case 5:
+					(r = v), (g = p), (b = q);
+					break;
+			}
+
+			return { r, g, b };
+		}
+
+		function generateColor() {
+			const c = HSVtoRGB(
+				Math.random() * (config.END_HUE - config.START_HUE) + config.START_HUE,
+				1.0,
+				1.0
+			);
+			c.r *= 0.15;
+			c.g *= 0.15;
+			c.b *= 0.15;
+			return c;
+		}
+
+		function correctRadius(radius: number) {
+			const aspectRatio = fluidCanvas.width / fluidCanvas.height;
+			if (aspectRatio > 1) radius *= aspectRatio;
+			return radius;
+		}
+
+		function splat(x: number, y: number, dx: number, dy: number, color: { r: number; g: number; b: number }) {
+			splatProgram.bind();
+			gl.uniform1i(splatProgram.uniforms.uTarget, velocity.read.attach(0));
+			gl.uniform1f(splatProgram.uniforms.aspectRatio, fluidCanvas.width / fluidCanvas.height);
+			gl.uniform2f(splatProgram.uniforms.point, x, y);
+			gl.uniform3f(splatProgram.uniforms.color, dx, dy, 0.0);
+			gl.uniform1f(splatProgram.uniforms.radius, correctRadius(config.SPLAT_RADIUS / 100.0));
+			blit(velocity.write);
+			velocity.swap();
+
+			gl.uniform1i(splatProgram.uniforms.uTarget, dye.read.attach(0));
+			gl.uniform3f(splatProgram.uniforms.color, color.r, color.g, color.b);
+			blit(dye.write);
+			dye.swap();
+		}
+
+		function multipleSplats(amount: number) {
+			for (let i = 0; i < amount; i++) {
+				const color = generateColor();
+				color.r *= 10.0;
+				color.g *= 10.0;
+				color.b *= 10.0;
+				const x = Math.random();
+				const y = Math.random() < 0.5 ? 0.8 : 0.2;
+				const dx = 100 * (Math.random() - 0.5);
+				const dy = 1000 * (Math.random() - 0.5);
+				splat(x, y, dx, dy, color);
+			}
+		}
+
+		function splatPointer(pointer: Pointer) {
+			const dx = pointer.deltaX * config.SPLAT_FORCE * 5;
+			const dy = pointer.deltaY * config.SPLAT_FORCE * 5;
+			splat(pointer.texcoordX, pointer.texcoordY, dx, dy, {
+				r: pointer.color[0],
+				g: pointer.color[1],
+				b: pointer.color[2]
+			});
+		}
+
+		function step(dt: number) {
+			gl.disable(gl.BLEND);
+
+			curlProgram.bind();
+			gl.uniform2f(curlProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+			gl.uniform1i(curlProgram.uniforms.uVelocity, velocity.read.attach(0));
+			blit(curl);
+
+			vorticityProgram.bind();
+			gl.uniform2f(vorticityProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+			gl.uniform1i(vorticityProgram.uniforms.uVelocity, velocity.read.attach(0));
+			gl.uniform1i(vorticityProgram.uniforms.uCurl, curl.attach(1));
+			gl.uniform1f(vorticityProgram.uniforms.curl, config.CURL);
+			gl.uniform1f(vorticityProgram.uniforms.dt, dt);
+			blit(velocity.write);
+			velocity.swap();
+
+			divergenceProgram.bind();
+			gl.uniform2f(divergenceProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+			gl.uniform1i(divergenceProgram.uniforms.uVelocity, velocity.read.attach(0));
+			blit(divergence);
+
+			clearProgram.bind();
+			gl.uniform1i(clearProgram.uniforms.uTexture, pressure.read.attach(0));
+			gl.uniform1f(clearProgram.uniforms.value, config.PRESSURE);
+			blit(pressure.write);
+			pressure.swap();
+
+			pressureProgram.bind();
+			gl.uniform2f(pressureProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+			gl.uniform1i(pressureProgram.uniforms.uDivergence, divergence.attach(0));
+			for (let i = 0; i < config.PRESSURE_ITERATIONS; i++) {
+				gl.uniform1i(pressureProgram.uniforms.uPressure, pressure.read.attach(1));
+				blit(pressure.write);
+				pressure.swap();
+			}
+
+			gradienSubtractProgram.bind();
+			gl.uniform2f(
+				gradienSubtractProgram.uniforms.texelSize,
+				velocity.texelSizeX,
+				velocity.texelSizeY
+			);
+			gl.uniform1i(gradienSubtractProgram.uniforms.uPressure, pressure.read.attach(0));
+			gl.uniform1i(gradienSubtractProgram.uniforms.uVelocity, velocity.read.attach(1));
+			blit(velocity.write);
+			velocity.swap();
+
+			advectionProgram.bind();
+			gl.uniform2f(advectionProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+			if (!ext.supportLinearFiltering) {
+				gl.uniform2f(
+					advectionProgram.uniforms.dyeTexelSize,
+					velocity.texelSizeX,
+					velocity.texelSizeY
+				);
+			}
+			const velocityId = velocity.read.attach(0);
+			gl.uniform1i(advectionProgram.uniforms.uVelocity, velocityId);
+			gl.uniform1i(advectionProgram.uniforms.uSource, velocityId);
+			gl.uniform1f(advectionProgram.uniforms.dt, dt);
+			gl.uniform1f(advectionProgram.uniforms.dissipation, config.VELOCITY_DISSIPATION);
+			blit(velocity.write);
+			velocity.swap();
+
+			if (!ext.supportLinearFiltering) {
+				gl.uniform2f(advectionProgram.uniforms.dyeTexelSize, dye.texelSizeX, dye.texelSizeY);
+			}
+			gl.uniform1i(advectionProgram.uniforms.uVelocity, velocity.read.attach(0));
+			gl.uniform1i(advectionProgram.uniforms.uSource, dye.read.attach(1));
+			gl.uniform1f(advectionProgram.uniforms.dissipation, config.DENSITY_DISSIPATION);
+			blit(dye.write);
+			dye.swap();
+		}
+
+		function blur(target: FBO, temp: FBO, iterations: number) {
+			blurProgram.bind();
+			for (let i = 0; i < iterations; i++) {
+				gl.uniform2f(blurProgram.uniforms.texelSize, target.texelSizeX, 0.0);
+				gl.uniform1i(blurProgram.uniforms.uTexture, target.attach(0));
+				blit(temp);
+
+				gl.uniform2f(blurProgram.uniforms.texelSize, 0.0, target.texelSizeY);
+				gl.uniform1i(blurProgram.uniforms.uTexture, temp.attach(0));
+				blit(target);
+			}
+		}
+
+		function applySunrays(source: FBO, mask: FBO, destination: FBO) {
+			gl.disable(gl.BLEND);
+			sunraysMaskProgram.bind();
+			gl.uniform1i(sunraysMaskProgram.uniforms.uTexture, source.attach(0));
+			blit(mask);
+
+			sunraysProgram.bind();
+			gl.uniform1f(sunraysProgram.uniforms.weight, config.SUNRAYS_WEIGHT);
+			gl.uniform1i(sunraysProgram.uniforms.uTexture, mask.attach(0));
+			blit(destination);
+		}
+
+		function drawColor(target: FBO | null, color: { r: number; g: number; b: number }) {
+			colorProgram.bind();
+			gl.uniform4f(colorProgram.uniforms.color, color.r, color.g, color.b, 1);
+			blit(target);
+		}
+
+		function drawDisplay(target: FBO | null) {
+			const width = target === null ? gl.drawingBufferWidth : target.width;
+			const height = target === null ? gl.drawingBufferHeight : target.height;
+
+			displayMaterial.bind();
+			if (config.SHADING) {
+				gl.uniform2f(displayMaterial.uniforms.texelSize, 1.0 / width, 1.0 / height);
+			}
+			gl.uniform1i(displayMaterial.uniforms.uTexture, dye.read.attach(0));
+			if (config.SUNRAYS) {
+				gl.uniform1i(displayMaterial.uniforms.uSunrays, sunrays.attach(3));
+			}
+			blit(target);
+		}
+
+		function render(target: FBO | null) {
+			if (config.SUNRAYS) {
+				applySunrays(dye.read, dye.write, sunrays);
+				blur(sunrays, sunraysTemp, 1);
+			}
+
+			if (target === null || !config.TRANSPARENT) {
+				gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
+				gl.enable(gl.BLEND);
+			} else {
+				gl.disable(gl.BLEND);
+			}
+
+			if (!config.TRANSPARENT) {
+				drawColor(target, {
+					r: config.BACK_COLOR.r / 255,
+					g: config.BACK_COLOR.g / 255,
+					b: config.BACK_COLOR.b / 255
+				});
+			}
+			drawDisplay(target);
+		}
+
+		function wrap(value: number, min: number, max: number) {
+			const range = max - min;
+			if (range === 0) return min;
+			return ((value - min) % range) + min;
+		}
+
+		let lastUpdateTime = Date.now();
+		let colorUpdateTimer = 0.0;
+
+		function updateColors(dt: number) {
+			if (!config.COLORFUL) return;
+			colorUpdateTimer += dt * config.COLOR_UPDATE_SPEED;
+			if (colorUpdateTimer >= 1) {
+				colorUpdateTimer = wrap(colorUpdateTimer, 0, 1);
+				pointers.forEach((p) => {
+					const c = generateColor();
+					p.color = [c.r * 255, c.g * 255, c.b * 255];
+				});
+			}
+		}
+
+		function applyInputs() {
+			if (splatStack.length > 0) multipleSplats(splatStack.pop()!);
+
+			pointers.forEach((p) => {
+				if (p.moved) {
+					p.moved = false;
+					splatPointer(p);
+				}
+			});
+		}
+
+		function calcDeltaTime() {
+			const now = Date.now();
+			let dt = (now - lastUpdateTime) / 1000;
+			dt = Math.min(dt, 0.016666);
+			lastUpdateTime = now;
+			return dt;
+		}
+
+		function update() {
+			const dt = calcDeltaTime() * (config.RENDER_SPEED ?? 1.0);
+			if (resizeCanvas()) initFramebuffers();
+			updateColors(dt);
+			applyInputs();
+			if (!config.PAUSED) step(dt);
+			render(null);
+			animationId = requestAnimationFrame(update);
+		}
+
+		function hashCode(s: string) {
+			if (s.length === 0) return 0;
+			let hash = 0;
+			for (let i = 0; i < s.length; i++) {
+				hash = (hash << 5) - hash + s.charCodeAt(i);
+				hash |= 0;
+			}
+			return hash;
+		}
+
+		function correctDeltaX(delta: number) {
+			const aspectRatio = fluidCanvas.width / fluidCanvas.height;
+			if (aspectRatio < 1) delta *= aspectRatio;
+			return delta;
+		}
+
+		function correctDeltaY(delta: number) {
+			const aspectRatio = fluidCanvas.width / fluidCanvas.height;
+			if (aspectRatio > 1) delta /= aspectRatio;
+			return delta;
+		}
+
+		function updatePointerDownData(pointer: Pointer, id: number, posX: number, posY: number) {
+			pointer.id = id;
+			pointer.down = true;
+			pointer.moved = false;
+			pointer.texcoordX = posX / fluidCanvas.width;
+			pointer.texcoordY = 1.0 - posY / fluidCanvas.height;
+			pointer.prevTexcoordX = pointer.texcoordX;
+			pointer.prevTexcoordY = pointer.texcoordY;
+			pointer.deltaX = 0;
+			pointer.deltaY = 0;
+			const c = generateColor();
+			pointer.color = [c.r * 255, c.g * 255, c.b * 255];
+		}
+
+		function updatePointerMoveData(pointer: Pointer, posX: number, posY: number) {
+			pointer.prevTexcoordX = pointer.texcoordX;
+			pointer.prevTexcoordY = pointer.texcoordY;
+			pointer.texcoordX = posX / fluidCanvas.width;
+			pointer.texcoordY = 1.0 - posY / fluidCanvas.height;
+			pointer.deltaX = correctDeltaX(pointer.texcoordX - pointer.prevTexcoordX);
+			pointer.deltaY = correctDeltaY(pointer.texcoordY - pointer.prevTexcoordY);
+			pointer.moved = Math.abs(pointer.deltaX) > 0 || Math.abs(pointer.deltaY) > 0;
+		}
+
+		function updatePointerUpData(pointer: Pointer) {
+			pointer.down = false;
+		}
+
+		// Event handlers
+		fluidCanvas.addEventListener('mouseenter', (e) => {
+			// Create a small burst when mouse enters the card
+			const posX = scaleByPixelRatio(e.offsetX);
+			const posY = scaleByPixelRatio(e.offsetY);
+			const x = posX / fluidCanvas.width;
+			const y = 1.0 - posY / fluidCanvas.height;
+			const color = generateColor();
+			color.r *= 10.0;
+			color.g *= 10.0;
+			color.b *= 10.0;
+			splat(x, y, 300 * (Math.random() - 0.5), 300 * (Math.random() - 0.5), color);
+		});
+
+		fluidCanvas.addEventListener('mousedown', (e) => {
+			const posX = scaleByPixelRatio(e.offsetX);
+			const posY = scaleByPixelRatio(e.offsetY);
+			let pointer = pointers.find((p) => p.id === -1);
+			if (!pointer) pointer = PointerPrototype();
+			updatePointerDownData(pointer, -1, posX, posY);
+		});
+
+		fluidCanvas.addEventListener('mousemove', (e) => {
+			const pointer = pointers[0];
+			const posX = scaleByPixelRatio(e.offsetX);
+			const posY = scaleByPixelRatio(e.offsetY);
+			updatePointerMoveData(pointer, posX, posY);
+			// Always create swish effect on hover
+			if (pointer.moved) {
+				pointer.moved = false;
+				// Generate a new color for visual interest
+				const c = generateColor();
+				pointer.color = [c.r * 255, c.g * 255, c.b * 255];
+				splatPointer(pointer);
+			}
+		});
+
+		fluidCanvas.addEventListener('mouseup', () => {
+			updatePointerUpData(pointers[0]);
+		});
+
+		fluidCanvas.addEventListener('touchstart', (e) => {
+			e.preventDefault();
+			const touches = e.targetTouches;
+			while (touches.length >= pointers.length) pointers.push(PointerPrototype());
+			for (let i = 0; i < touches.length; i++) {
+				const rect = fluidCanvas.getBoundingClientRect();
+				const posX = scaleByPixelRatio(touches[i].clientX - rect.left);
+				const posY = scaleByPixelRatio(touches[i].clientY - rect.top);
+				updatePointerDownData(pointers[i + 1], touches[i].identifier, posX, posY);
+			}
+		});
+
+		fluidCanvas.addEventListener('touchmove', (e) => {
+			e.preventDefault();
+			const touches = e.targetTouches;
+			for (let i = 0; i < touches.length; i++) {
+				const pointer = pointers[i + 1];
+				if (!pointer.down) continue;
+				const rect = fluidCanvas.getBoundingClientRect();
+				const posX = scaleByPixelRatio(touches[i].clientX - rect.left);
+				const posY = scaleByPixelRatio(touches[i].clientY - rect.top);
+				updatePointerMoveData(pointer, posX, posY);
+			}
+		});
+
+		fluidCanvas.addEventListener('touchend', (e) => {
+			const touches = e.changedTouches;
+			for (let i = 0; i < touches.length; i++) {
+				const pointer = pointers.find((p) => p.id === touches[i].identifier);
+				if (pointer) updatePointerUpData(pointer);
+			}
+		});
+
+		// Initialize
+		updateKeywords();
+		initFramebuffers();
+		multipleSplats(25);
+		update();
+
+		// Auto splat interval
+		splatIntervalId = setInterval(() => {
+			multipleSplats(5);
+		}, 500);
+
+		// Resize observer - also triggers initial draw
+		resizeObserver = new ResizeObserver(() => {
+			resizeCanvas();
+			drawOverlayCanvas();
+		});
+		resizeObserver.observe(container);
+
+		// Mark as initialized after first resize callback
+		isInitialized = true;
+	}
+</script>
+
+<div bind:this={container} class="relative h-full w-full overflow-hidden bg-black">
+	<canvas bind:this={fluidCanvas} class="absolute h-full w-full"></canvas>
+	<canvas bind:this={maskCanvas} class="absolute h-full w-full"></canvas>
+</div>

src/lib/cards/FluidTextCard/FluidTextCardSettings.svelte

···
+<script lang="ts">
+	import type { Item } from '$lib/types';
+	import type { ContentComponentProps } from '../types';
+	import { ToggleGroup, ToggleGroupItem, Button, Input, Label } from '@foxui/core';
+
+	let { item = $bindable<Item>() }: ContentComponentProps = $props();
+
+	const fontWeights = ['400', '500', '600', '700', '800', '900'] as const;
+	const fontFamilies = [
+		'Arial',
+		'Helvetica',
+		'Georgia',
+		'Times New Roman',
+		'Courier New',
+		'monospace'
+	] as const;
+
+	const classes = 'size-8 min-w-8 text-xs cursor-pointer';
+</script>
+
+<div class="flex flex-col gap-3">
+	<div>
+		<Label class="mb-1 text-xs">Text</Label>
+		<Input
+			bind:value={item.cardData.text}
+			placeholder="Enter text"
+			class="w-full"
+		/>
+	</div>
+
+	<div>
+		<Label class="mb-1 text-xs">Font Weight</Label>
+		<ToggleGroup
+			type="single"
+			bind:value={
+				() => item.cardData.fontWeight ?? '900',
+				(value) => {
+					if (!value) return;
+					item.cardData.fontWeight = value;
+				}
+			}
+		>
+			{#each fontWeights as weight (weight)}
+				<ToggleGroupItem size="sm" value={weight} class={classes}>
+					{weight}
+				</ToggleGroupItem>
+			{/each}
+		</ToggleGroup>
+	</div>
+
+	<div>
+		<Label class="mb-1 text-xs">Font Family</Label>
+		<select
+			class="w-full rounded-md border border-base-200 bg-base-50 px-2 py-1.5 text-sm dark:border-base-800 dark:bg-base-900"
+			value={item.cardData.fontFamily ?? 'Arial'}
+			onchange={(e) => {
+				item.cardData.fontFamily = e.currentTarget.value;
+			}}
+		>
+			{#each fontFamilies as font (font)}
+				<option value={font}>{font}</option>
+			{/each}
+		</select>
+	</div>
+
+	<div>
+		<Label class="mb-1 text-xs">Font Size ({Math.round((item.cardData.fontSize ?? 0.33) * 100)}%)</Label>
+		<div class="flex items-center gap-2">
+			<Button
+				variant="ghost"
+				size="sm"
+				onclick={() => {
+					item.cardData.fontSize = Math.max((item.cardData.fontSize ?? 0.33) - 0.05, 0.1);
+				}}
+				disabled={(item.cardData.fontSize ?? 0.33) <= 0.1}
+			>
+				<svg
+					xmlns="http://www.w3.org/2000/svg"
+					width="16"
+					height="16"
+					viewBox="0 0 24 24"
+					fill="none"
+					stroke="currentColor"
+					stroke-width="2"
+					stroke-linecap="round"
+					stroke-linejoin="round"
+				>
+					<path d="M5 12h14" />
+				</svg>
+			</Button>
+			<input
+				type="range"
+				min="0.1"
+				max="0.8"
+				step="0.01"
+				value={item.cardData.fontSize ?? 0.33}
+				oninput={(e) => {
+					item.cardData.fontSize = parseFloat(e.currentTarget.value);
+				}}
+				class="h-2 w-full cursor-pointer appearance-none rounded-lg bg-base-200 dark:bg-base-700"
+			/>
+			<Button
+				variant="ghost"
+				size="sm"
+				onclick={() => {
+					item.cardData.fontSize = Math.min((item.cardData.fontSize ?? 0.33) + 0.05, 0.8);
+				}}
+				disabled={(item.cardData.fontSize ?? 0.33) >= 0.8}
+			>
+				<svg
+					xmlns="http://www.w3.org/2000/svg"
+					width="16"
+					height="16"
+					viewBox="0 0 24 24"
+					fill="none"
+					stroke="currentColor"
+					stroke-width="2"
+					stroke-linecap="round"
+					stroke-linejoin="round"
+				>
+					<path d="M5 12h14" />
+					<path d="M12 5v14" />
+				</svg>
+			</Button>
+		</div>
+	</div>
+</div>

src/lib/cards/FluidTextCard/index.ts

···
+import type { CardDefinition } from '../types';
+import CreateFluidTextCardModal from './CreateFluidTextCardModal.svelte';
+import FluidTextCard from './FluidTextCard.svelte';
+import FluidTextCardSettings from './FluidTextCardSettings.svelte';
+
+export const FluidTextCardDefinition = {
+	type: 'fluid-text',
+	contentComponent: FluidTextCard,
+	createNew: (card) => {
+		card.cardType = 'fluid-text';
+		card.cardData = {
+			text: '',
+			fontWeight: '900',
+			fontFamily: 'Arial',
+			fontSize: 0.33
+		};
+		card.w = 4;
+		card.h = 2;
+		card.mobileW = 4;
+		card.mobileH = 2;
+	},
+	creationModalComponent: CreateFluidTextCardModal,
+	settingsComponent: FluidTextCardSettings,
+	sidebarButtonText: 'Fluid Text',
+	defaultColor: 'transparent',
+	minW: 2,
+	minH: 2
+} as CardDefinition & { type: 'fluid-text' };

src/lib/cards/FluidTextCard/text_effect_fluid-main/.gitignore

···
+/.DS_Store
+/.vite

src/lib/cards/FluidTextCard/text_effect_fluid-main/LICENSE

···
+Copyright 2024 flo-bit
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

src/lib/cards/FluidTextCard/text_effect_fluid-main/Readme.md

···
+# Text effect: Fluid Simulation demo
+
+[Live demo](https://flo-bit.github.io/text_effect_fluid/) (currently sometimes breaks on first open, just reload once or twice)
+
+[![cover](cover.png)](https://flo-bit.github.io/text_effect_fluid/)
+
+Inspired by the current (Jan 2024) version of [the lumalabs homepage](https://lumalabs.ai/) (obviously, their effect looks *way* better, than my quick and dirty version):
+
+![lumalabs](luma.png)
+
+Adjusted version of this awesome [WebGL Fluid Simulation](https://github.com/PavelDoGreat/WebGL-Fluid-Simulation).
+
+## How it works
+
+I wrote a short [blog post](https://flobit.substack.com/p/how-i-recreated-this-awesome-text) about my approach.
+
+## Usage
+
+- Add `script.js` and `LDR_LLL1_0.png` to your project
+
+- Add this to your html
+
+```html
+<div id="canvasContainer">
+    <canvas></canvas>
+    <canvas id="maskCanvas"> </canvas>
+</div>
+
+<script src="./script.js"></script>
+```
+
+- Add this styling
+
+```css
+html,
+body {
+    overflow: hidden;
+    background-color: #000;
+}
+
+body {
+    margin: 0;
+}
+
+#canvasContainer {
+    position: relative;
+    width: 100vw;
+    height: 100vh;
+}
+
+canvas {
+    width: 100%;
+    height: 100%;
+    position: absolute;
+}
+```
+
+
+## License
+
+MIT License
+
+```
+Copyright 2024 flo-bit
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+```

src/lib/cards/FluidTextCard/text_effect_fluid-main/index.html

···
+<!doctype html>
+<html lang="en" class="bg-black">
+
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+
+    <title>fluid text effect</title>
+
+    <style>
+        html,
+        body {
+            overflow: hidden;
+            background-color: #000;
+        }
+
+        body {
+            margin: 0;
+        }
+
+        #canvasContainer {
+            position: relative;
+            width: 100vw;
+            height: 100vh;
+        }
+
+        canvas {
+            width: 100%;
+            height: 100%;
+            position: absolute;
+        }
+    </style>
+
+</head>
+
+<body>
+    <!-- <input id="name"></input> -->
+    <div id="canvasContainer">
+        <canvas></canvas>
+        <canvas id="maskCanvas"> </canvas>
+    </div>
+    
+    <script src="./script.js"></script>
+</body>
+
+</html>

src/lib/cards/FluidTextCard/text_effect_fluid-main/script.js

···
+/*
+MIT License
+
+Copyright (c) 2017 Pavel Dobryakov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+'use strict';
+
+const overlayConfig = {
+	text: 'flo-bit',
+	fontWidth: '900',
+	font: 'Arial',
+	fontSize: 1/3, // percentage to canvas width
+}
+
+// overlay canvas
+
+function resizeOverlayCanvas() {
+	let overlayCanvas = document.getElementById('maskCanvas');
+	let container = document.getElementById('canvasContainer');
+
+	overlayCanvas.width = container.offsetWidth;
+	overlayCanvas.height = container.offsetHeight;
+
+	let ctx = overlayCanvas.getContext('2d');
+
+	let dpr = window.devicePixelRatio || 1;
+	let rect = overlayCanvas.getBoundingClientRect();
+
+	overlayCanvas.width = rect.width * dpr;
+	overlayCanvas.height = rect.height * dpr;
+	ctx.scale(dpr, dpr);
+
+	ctx.fillStyle = 'black';
+	ctx.fillRect(0, 0, overlayCanvas.width, overlayCanvas.height);
+
+	let fontSize = Math.round(rect.width * overlayConfig.fontSize);
+	ctx.font = overlayConfig.fontWidth + ' ' + fontSize + 'px ' + overlayConfig.font;
+
+	ctx.strokeStyle = 'rgba(255, 255, 255, 0.3)';
+	ctx.lineWidth = 2;
+
+	ctx.textBaseline = 'middle'; 
+	ctx.textAlign = 'center';
+
+	ctx.strokeText(overlayConfig.text, rect.width / 2, rect.height / 2);
+
+	ctx.globalCompositeOperation = 'destination-out';
+	ctx.fillText(overlayConfig.text, rect.width / 2, rect.height / 2);
+}
+
+// const input = document.getElementById('name');
+
+// // on change
+// input.addEventListener('change', function() {
+// 	overlayConfig.text = input.value;
+// 	resizeOverlayCanvas();
+// });
+
+
+// Initial resize
+resizeOverlayCanvas();
+
+// Resize canvas on window resize
+window.addEventListener('resize', resizeOverlayCanvas);
+
+
+// Simulation section
+
+const canvas = document.getElementsByTagName('canvas')[0];
+resizeCanvas();
+
+let config = {
+	SIM_RESOLUTION: 128,
+	DYE_RESOLUTION: 1024,
+	CAPTURE_RESOLUTION: 512,
+	DENSITY_DISSIPATION: 1.0,
+	VELOCITY_DISSIPATION: 0.1,
+	PRESSURE: 0.8,
+	PRESSURE_ITERATIONS: 20,
+	CURL: 30,
+	SPLAT_RADIUS: 0.25,
+	SPLAT_FORCE: 1000,
+	SHADING: true,
+	COLORFUL: true,
+	COLOR_UPDATE_SPEED: 10,
+	PAUSED: false,
+	BACK_COLOR: { r: 0, g: 0, b: 0 },
+	TRANSPARENT: false,
+	BLOOM: false,
+	BLOOM_ITERATIONS: 8,
+	BLOOM_RESOLUTION: 256,
+	BLOOM_INTENSITY: 0.8,
+	BLOOM_THRESHOLD: 0.8,
+	BLOOM_SOFT_KNEE: 0.7,
+	SUNRAYS: true,
+	SUNRAYS_RESOLUTION: 196,
+	SUNRAYS_WEIGHT: 1.0,
+	START_HUE: 0.5,
+	END_HUE: 1.0,
+	RENDER_SPEED: 0.4
+};
+
+function PointerPrototype() {
+	this.id = -1;
+	this.texcoordX = 0;
+	this.texcoordY = 0;
+	this.prevTexcoordX = 0;
+	this.prevTexcoordY = 0;
+	this.deltaX = 0;
+	this.deltaY = 0;
+	this.down = false;
+	this.moved = false;
+	this.color = [30, 0, 300];
+}
+
+let pointers = [];
+let splatStack = [];
+pointers.push(new PointerPrototype());
+
+const { gl, ext } = getWebGLContext(canvas);
+
+if (isMobile()) {
+	config.DYE_RESOLUTION = 512;
+}
+if (!ext.supportLinearFiltering) {
+	config.DYE_RESOLUTION = 512;
+	config.SHADING = false;
+	config.BLOOM = false;
+	config.SUNRAYS = false;
+}
+
+function getWebGLContext(canvas) {
+	const params = {
+		alpha: true,
+		depth: false,
+		stencil: true,
+		antialias: false,
+		preserveDrawingBuffer: false
+	};
+
+ 
+	let gl = canvas.getContext('webgl2', params);
+	const isWebGL2 = !!gl;
+	if (!isWebGL2)
+		gl = canvas.getContext('webgl', params) || canvas.getContext('experimental-webgl', params);
+		
+	let halfFloat;
+	let supportLinearFiltering;
+	if (isWebGL2) {
+		gl.getExtension('EXT_color_buffer_float');
+		supportLinearFiltering = gl.getExtension('OES_texture_float_linear');
+	} else {
+		halfFloat = gl.getExtension('OES_texture_half_float');
+		supportLinearFiltering = gl.getExtension('OES_texture_half_float_linear');
+	}
+
+	gl.clearColor(0.0, 0.0, 0.0, 1.0);
+
+	const halfFloatTexType = isWebGL2 ? gl.HALF_FLOAT : halfFloat.HALF_FLOAT_OES;
+	let formatRGBA;
+	let formatRG;
+	let formatR;
+
+	if (isWebGL2) {
+		formatRGBA = getSupportedFormat(gl, gl.RGBA16F, gl.RGBA, halfFloatTexType);
+		formatRG = getSupportedFormat(gl, gl.RG16F, gl.RG, halfFloatTexType);
+		formatR = getSupportedFormat(gl, gl.R16F, gl.RED, halfFloatTexType);
+	} else {
+		formatRGBA = getSupportedFormat(gl, gl.RGBA, gl.RGBA, halfFloatTexType);
+		formatRG = getSupportedFormat(gl, gl.RGBA, gl.RGBA, halfFloatTexType);
+		formatR = getSupportedFormat(gl, gl.RGBA, gl.RGBA, halfFloatTexType);
+	}
+
+	return {
+		gl,
+		ext: {
+			formatRGBA,
+			formatRG,
+			formatR,
+			halfFloatTexType,
+			supportLinearFiltering
+		}
+	};
+}
+
+function getSupportedFormat(gl, internalFormat, format, type) {
+	if (!supportRenderTextureFormat(gl, internalFormat, format, type)) {
+		switch (internalFormat) {
+			case gl.R16F:
+				return getSupportedFormat(gl, gl.RG16F, gl.RG, type);
+			case gl.RG16F:
+				return getSupportedFormat(gl, gl.RGBA16F, gl.RGBA, type);
+			default:
+				return null;
+		}
+	}
+
+	return {
+		internalFormat,
+		format
+	};
+}
+
+function supportRenderTextureFormat(gl, internalFormat, format, type) {
+	let texture = gl.createTexture();
+	gl.bindTexture(gl.TEXTURE_2D, texture);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+	gl.texImage2D(gl.TEXTURE_2D, 0, internalFormat, 4, 4, 0, format, type, null);
+
+	let fbo = gl.createFramebuffer();
+	gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+	gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0);
+
+	let status = gl.checkFramebufferStatus(gl.FRAMEBUFFER);
+	return status == gl.FRAMEBUFFER_COMPLETE;
+}
+
+function isMobile() {
+	return /Mobi|Android/i.test(navigator.userAgent);
+}
+
+class Material {
+	constructor(vertexShader, fragmentShaderSource) {
+		this.vertexShader = vertexShader;
+		this.fragmentShaderSource = fragmentShaderSource;
+		this.programs = [];
+		this.activeProgram = null;
+		this.uniforms = [];
+	}
+
+	setKeywords(keywords) {
+		let hash = 0;
+		for (let i = 0; i < keywords.length; i++) hash += hashCode(keywords[i]);
+
+		let program = this.programs[hash];
+		if (program == null) {
+			let fragmentShader = compileShader(gl.FRAGMENT_SHADER, this.fragmentShaderSource, keywords);
+			program = createProgram(this.vertexShader, fragmentShader);
+			this.programs[hash] = program;
+		}
+
+		if (program == this.activeProgram) return;
+
+		this.uniforms = getUniforms(program);
+		this.activeProgram = program;
+	}
+
+	bind() {
+		gl.useProgram(this.activeProgram);
+	}
+}
+
+class Program {
+	constructor(vertexShader, fragmentShader) {
+		this.uniforms = {};
+		this.program = createProgram(vertexShader, fragmentShader);
+		this.uniforms = getUniforms(this.program);
+	}
+
+	bind() {
+		gl.useProgram(this.program);
+	}
+}
+
+function createProgram(vertexShader, fragmentShader) {
+	let program = gl.createProgram();
+	gl.attachShader(program, vertexShader);
+	gl.attachShader(program, fragmentShader);
+	gl.linkProgram(program);
+
+	if (!gl.getProgramParameter(program, gl.LINK_STATUS))
+		console.trace(gl.getProgramInfoLog(program));
+
+	return program;
+}
+
+function getUniforms(program) {
+	let uniforms = [];
+	let uniformCount = gl.getProgramParameter(program, gl.ACTIVE_UNIFORMS);
+	for (let i = 0; i < uniformCount; i++) {
+		let uniformName = gl.getActiveUniform(program, i).name;
+		uniforms[uniformName] = gl.getUniformLocation(program, uniformName);
+	}
+	return uniforms;
+}
+
+function compileShader(type, source, keywords) {
+	source = addKeywords(source, keywords);
+
+	const shader = gl.createShader(type);
+	gl.shaderSource(shader, source);
+	gl.compileShader(shader);
+
+	if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) console.trace(gl.getShaderInfoLog(shader));
+
+	return shader;
+}
+
+function addKeywords(source, keywords) {
+	if (keywords == null) return source;
+	let keywordsString = '';
+	keywords.forEach((keyword) => {
+		keywordsString += '#define ' + keyword + '\n';
+	});
+	return keywordsString + source;
+}
+
+const baseVertexShader = compileShader(
+	gl.VERTEX_SHADER,
+	`
+    precision highp float;
+
+    attribute vec2 aPosition;
+    varying vec2 vUv;
+    varying vec2 vL;
+    varying vec2 vR;
+    varying vec2 vT;
+    varying vec2 vB;
+    uniform vec2 texelSize;
+
+    void main () {
+        vUv = aPosition * 0.5 + 0.5;
+        vL = vUv - vec2(texelSize.x, 0.0);
+        vR = vUv + vec2(texelSize.x, 0.0);
+        vT = vUv + vec2(0.0, texelSize.y);
+        vB = vUv - vec2(0.0, texelSize.y);
+        gl_Position = vec4(aPosition, 0.0, 1.0);
+    }
+`
+);
+
+const blurVertexShader = compileShader(
+	gl.VERTEX_SHADER,
+	`
+    precision highp float;
+
+    attribute vec2 aPosition;
+    varying vec2 vUv;
+    varying vec2 vL;
+    varying vec2 vR;
+    uniform vec2 texelSize;
+
+    void main () {
+        vUv = aPosition * 0.5 + 0.5;
+        float offset = 1.33333333;
+        vL = vUv - texelSize * offset;
+        vR = vUv + texelSize * offset;
+        gl_Position = vec4(aPosition, 0.0, 1.0);
+    }
+`
+);
+
+const blurShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying vec2 vUv;
+    varying vec2 vL;
+    varying vec2 vR;
+    uniform sampler2D uTexture;
+
+    void main () {
+        vec4 sum = texture2D(uTexture, vUv) * 0.29411764;
+        sum += texture2D(uTexture, vL) * 0.35294117;
+        sum += texture2D(uTexture, vR) * 0.35294117;
+        gl_FragColor = sum;
+    }
+`
+);
+
+const copyShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying highp vec2 vUv;
+    uniform sampler2D uTexture;
+
+    void main () {
+        gl_FragColor = texture2D(uTexture, vUv);
+    }
+`
+);
+
+const clearShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying highp vec2 vUv;
+    uniform sampler2D uTexture;
+    uniform float value;
+
+    void main () {
+        gl_FragColor = value * texture2D(uTexture, vUv);
+    }
+`
+);
+
+const colorShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+
+    uniform vec4 color;
+
+    void main () {
+        gl_FragColor = color;
+    }
+`
+);
+
+const checkerboardShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision highp float;
+    precision highp sampler2D;
+
+    varying vec2 vUv;
+    uniform sampler2D uTexture;
+    uniform float aspectRatio;
+
+    #define SCALE 25.0
+
+    void main () {
+        vec2 uv = floor(vUv * SCALE * vec2(aspectRatio, 1.0));
+        float v = mod(uv.x + uv.y, 2.0);
+        v = v * 0.1 + 0.8;
+        gl_FragColor = vec4(vec3(v), 1.0);
+    }
+`
+);
+
+const displayShaderSource = `
+    precision highp float;
+    precision highp sampler2D;
+
+    varying vec2 vUv;
+    varying vec2 vL;
+    varying vec2 vR;
+    varying vec2 vT;
+    varying vec2 vB;
+    uniform sampler2D uTexture;
+    uniform sampler2D uBloom;
+    uniform sampler2D uSunrays;
+    uniform sampler2D uDithering;
+    uniform vec2 ditherScale;
+    uniform vec2 texelSize;
+
+    vec3 linearToGamma (vec3 color) {
+        color = max(color, vec3(0));
+        return max(1.055 * pow(color, vec3(0.416666667)) - 0.055, vec3(0));
+    }
+
+    void main () {
+        vec3 c = texture2D(uTexture, vUv).rgb;
+
+    #ifdef SHADING
+        vec3 lc = texture2D(uTexture, vL).rgb;
+        vec3 rc = texture2D(uTexture, vR).rgb;
+        vec3 tc = texture2D(uTexture, vT).rgb;
+        vec3 bc = texture2D(uTexture, vB).rgb;
+
+        float dx = length(rc) - length(lc);
+        float dy = length(tc) - length(bc);
+
+        vec3 n = normalize(vec3(dx, dy, length(texelSize)));
+        vec3 l = vec3(0.0, 0.0, 1.0);
+
+        float diffuse = clamp(dot(n, l) + 0.7, 0.7, 1.0);
+        c *= diffuse;
+    #endif
+
+    #ifdef BLOOM
+        vec3 bloom = texture2D(uBloom, vUv).rgb;
+    #endif
+
+    #ifdef SUNRAYS
+        float sunrays = texture2D(uSunrays, vUv).r;
+        c *= sunrays;
+    #ifdef BLOOM
+        bloom *= sunrays;
+    #endif
+    #endif
+
+    #ifdef BLOOM
+        float noise = texture2D(uDithering, vUv * ditherScale).r;
+        noise = noise * 2.0 - 1.0;
+        bloom += noise / 255.0;
+        bloom = linearToGamma(bloom);
+        c += bloom;
+    #endif
+
+        float a = max(c.r, max(c.g, c.b));
+        gl_FragColor = vec4(c, a);
+    }
+`;
+
+const bloomPrefilterShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying vec2 vUv;
+    uniform sampler2D uTexture;
+    uniform vec3 curve;
+    uniform float threshold;
+
+    void main () {
+        vec3 c = texture2D(uTexture, vUv).rgb;
+        float br = max(c.r, max(c.g, c.b));
+        float rq = clamp(br - curve.x, 0.0, curve.y);
+        rq = curve.z * rq * rq;
+        c *= max(rq, br - threshold) / max(br, 0.0001);
+        gl_FragColor = vec4(c, 0.0);
+    }
+`
+);
+
+const bloomBlurShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying vec2 vL;
+    varying vec2 vR;
+    varying vec2 vT;
+    varying vec2 vB;
+    uniform sampler2D uTexture;
+
+    void main () {
+        vec4 sum = vec4(0.0);
+        sum += texture2D(uTexture, vL);
+        sum += texture2D(uTexture, vR);
+        sum += texture2D(uTexture, vT);
+        sum += texture2D(uTexture, vB);
+        sum *= 0.25;
+        gl_FragColor = sum;
+    }
+`
+);
+
+const bloomFinalShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying vec2 vL;
+    varying vec2 vR;
+    varying vec2 vT;
+    varying vec2 vB;
+    uniform sampler2D uTexture;
+    uniform float intensity;
+
+    void main () {
+        vec4 sum = vec4(0.0);
+        sum += texture2D(uTexture, vL);
+        sum += texture2D(uTexture, vR);
+        sum += texture2D(uTexture, vT);
+        sum += texture2D(uTexture, vB);
+        sum *= 0.25;
+        gl_FragColor = sum * intensity;
+    }
+`
+);
+
+const sunraysMaskShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision highp float;
+    precision highp sampler2D;
+
+    varying vec2 vUv;
+    uniform sampler2D uTexture;
+
+    void main () {
+        vec4 c = texture2D(uTexture, vUv);
+        float br = max(c.r, max(c.g, c.b));
+        c.a = 1.0 - min(max(br * 20.0, 0.0), 0.8);
+        gl_FragColor = c;
+    }
+`
+);
+
+const sunraysShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision highp float;
+    precision highp sampler2D;
+
+    varying vec2 vUv;
+    uniform sampler2D uTexture;
+    uniform float weight;
+
+    #define ITERATIONS 16
+
+    void main () {
+        float Density = 0.3;
+        float Decay = 0.95;
+        float Exposure = 0.7;
+
+        vec2 coord = vUv;
+        vec2 dir = vUv - 0.5;
+
+        dir *= 1.0 / float(ITERATIONS) * Density;
+        float illuminationDecay = 1.0;
+
+        float color = texture2D(uTexture, vUv).a;
+
+        for (int i = 0; i < ITERATIONS; i++)
+        {
+            coord -= dir;
+            float col = texture2D(uTexture, coord).a;
+            color += col * illuminationDecay * weight;
+            illuminationDecay *= Decay;
+        }
+
+        gl_FragColor = vec4(color * Exposure, 0.0, 0.0, 1.0);
+    }
+`
+);
+
+const splatShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision highp float;
+    precision highp sampler2D;
+
+    varying vec2 vUv;
+    uniform sampler2D uTarget;
+    uniform float aspectRatio;
+    uniform vec3 color;
+    uniform vec2 point;
+    uniform float radius;
+
+    void main () {
+        vec2 p = vUv - point.xy;
+        p.x *= aspectRatio;
+        vec3 splat = exp(-dot(p, p) / radius) * color;
+        vec3 base = texture2D(uTarget, vUv).xyz;
+        gl_FragColor = vec4(base + splat, 1.0);
+    }
+`
+);
+
+const advectionShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision highp float;
+    precision highp sampler2D;
+
+    varying vec2 vUv;
+    uniform sampler2D uVelocity;
+    uniform sampler2D uSource;
+    uniform vec2 texelSize;
+    uniform vec2 dyeTexelSize;
+    uniform float dt;
+    uniform float dissipation;
+
+    vec4 bilerp (sampler2D sam, vec2 uv, vec2 tsize) {
+        vec2 st = uv / tsize - 0.5;
+
+        vec2 iuv = floor(st);
+        vec2 fuv = fract(st);
+
+        vec4 a = texture2D(sam, (iuv + vec2(0.5, 0.5)) * tsize);
+        vec4 b = texture2D(sam, (iuv + vec2(1.5, 0.5)) * tsize);
+        vec4 c = texture2D(sam, (iuv + vec2(0.5, 1.5)) * tsize);
+        vec4 d = texture2D(sam, (iuv + vec2(1.5, 1.5)) * tsize);
+
+        return mix(mix(a, b, fuv.x), mix(c, d, fuv.x), fuv.y);
+    }
+
+    void main () {
+    #ifdef MANUAL_FILTERING
+        vec2 coord = vUv - dt * bilerp(uVelocity, vUv, texelSize).xy * texelSize;
+        vec4 result = bilerp(uSource, coord, dyeTexelSize);
+    #else
+        vec2 coord = vUv - dt * texture2D(uVelocity, vUv).xy * texelSize;
+        vec4 result = texture2D(uSource, coord);
+    #endif
+        float decay = 1.0 + dissipation * dt;
+        gl_FragColor = result / decay;
+    }`,
+	ext.supportLinearFiltering ? null : ['MANUAL_FILTERING']
+);
+
+const divergenceShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying highp vec2 vUv;
+    varying highp vec2 vL;
+    varying highp vec2 vR;
+    varying highp vec2 vT;
+    varying highp vec2 vB;
+    uniform sampler2D uVelocity;
+
+    void main () {
+        float L = texture2D(uVelocity, vL).x;
+        float R = texture2D(uVelocity, vR).x;
+        float T = texture2D(uVelocity, vT).y;
+        float B = texture2D(uVelocity, vB).y;
+
+        vec2 C = texture2D(uVelocity, vUv).xy;
+        if (vL.x < 0.0) { L = -C.x; }
+        if (vR.x > 1.0) { R = -C.x; }
+        if (vT.y > 1.0) { T = -C.y; }
+        if (vB.y < 0.0) { B = -C.y; }
+
+        float div = 0.5 * (R - L + T - B);
+        gl_FragColor = vec4(div, 0.0, 0.0, 1.0);
+    }
+`
+);
+
+const curlShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying highp vec2 vUv;
+    varying highp vec2 vL;
+    varying highp vec2 vR;
+    varying highp vec2 vT;
+    varying highp vec2 vB;
+    uniform sampler2D uVelocity;
+
+    void main () {
+        float L = texture2D(uVelocity, vL).y;
+        float R = texture2D(uVelocity, vR).y;
+        float T = texture2D(uVelocity, vT).x;
+        float B = texture2D(uVelocity, vB).x;
+        float vorticity = R - L - T + B;
+        gl_FragColor = vec4(0.5 * vorticity, 0.0, 0.0, 1.0);
+    }
+`
+);
+
+const vorticityShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision highp float;
+    precision highp sampler2D;
+
+    varying vec2 vUv;
+    varying vec2 vL;
+    varying vec2 vR;
+    varying vec2 vT;
+    varying vec2 vB;
+    uniform sampler2D uVelocity;
+    uniform sampler2D uCurl;
+    uniform float curl;
+    uniform float dt;
+
+    void main () {
+        float L = texture2D(uCurl, vL).x;
+        float R = texture2D(uCurl, vR).x;
+        float T = texture2D(uCurl, vT).x;
+        float B = texture2D(uCurl, vB).x;
+        float C = texture2D(uCurl, vUv).x;
+
+        vec2 force = 0.5 * vec2(abs(T) - abs(B), abs(R) - abs(L));
+        force /= length(force) + 0.0001;
+        force *= curl * C;
+        force.y *= -1.0;
+
+        vec2 velocity = texture2D(uVelocity, vUv).xy;
+        velocity += force * dt;
+        velocity = min(max(velocity, -1000.0), 1000.0);
+        gl_FragColor = vec4(velocity, 0.0, 1.0);
+    }
+`
+);
+
+const pressureShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying highp vec2 vUv;
+    varying highp vec2 vL;
+    varying highp vec2 vR;
+    varying highp vec2 vT;
+    varying highp vec2 vB;
+    uniform sampler2D uPressure;
+    uniform sampler2D uDivergence;
+
+    void main () {
+        float L = texture2D(uPressure, vL).x;
+        float R = texture2D(uPressure, vR).x;
+        float T = texture2D(uPressure, vT).x;
+        float B = texture2D(uPressure, vB).x;
+        float C = texture2D(uPressure, vUv).x;
+        float divergence = texture2D(uDivergence, vUv).x;
+        float pressure = (L + R + B + T - divergence) * 0.25;
+        gl_FragColor = vec4(pressure, 0.0, 0.0, 1.0);
+    }
+`
+);
+
+const gradientSubtractShader = compileShader(
+	gl.FRAGMENT_SHADER,
+	`
+    precision mediump float;
+    precision mediump sampler2D;
+
+    varying highp vec2 vUv;
+    varying highp vec2 vL;
+    varying highp vec2 vR;
+    varying highp vec2 vT;
+    varying highp vec2 vB;
+    uniform sampler2D uPressure;
+    uniform sampler2D uVelocity;
+
+    void main () {
+        float L = texture2D(uPressure, vL).x;
+        float R = texture2D(uPressure, vR).x;
+        float T = texture2D(uPressure, vT).x;
+        float B = texture2D(uPressure, vB).x;
+        vec2 velocity = texture2D(uVelocity, vUv).xy;
+        velocity.xy -= vec2(R - L, T - B);
+        gl_FragColor = vec4(velocity, 0.0, 1.0);
+    }
+`
+);
+
+const blit = (() => {
+	gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer());
+	gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([-1, -1, -1, 1, 1, 1, 1, -1]), gl.STATIC_DRAW);
+	gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.createBuffer());
+	gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array([0, 1, 2, 0, 2, 3]), gl.STATIC_DRAW);
+	gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0);
+	gl.enableVertexAttribArray(0);
+
+	return (target, clear = false) => {
+		if (target == null) {
+			gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
+			gl.bindFramebuffer(gl.FRAMEBUFFER, null);
+		} else {
+			gl.viewport(0, 0, target.width, target.height);
+			gl.bindFramebuffer(gl.FRAMEBUFFER, target.fbo);
+		}
+		if (clear) {
+			gl.clearColor(0.0, 0.0, 0.0, 1.0);
+			gl.clear(gl.COLOR_BUFFER_BIT);
+		}
+		// CHECK_FRAMEBUFFER_STATUS();
+		gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0);
+	};
+})();
+
+function CHECK_FRAMEBUFFER_STATUS() {
+	let status = gl.checkFramebufferStatus(gl.FRAMEBUFFER);
+	if (status != gl.FRAMEBUFFER_COMPLETE) console.trace('Framebuffer error: ' + status);
+}
+
+let dye;
+let velocity;
+let divergence;
+let curl;
+let pressure;
+let bloom;
+let bloomFramebuffers = [];
+let sunrays;
+let sunraysTemp;
+
+let ditheringTexture = createTextureAsync('LDR_LLL1_0.png');
+
+const blurProgram = new Program(blurVertexShader, blurShader);
+const copyProgram = new Program(baseVertexShader, copyShader);
+const clearProgram = new Program(baseVertexShader, clearShader);
+const colorProgram = new Program(baseVertexShader, colorShader);
+const checkerboardProgram = new Program(baseVertexShader, checkerboardShader);
+const bloomPrefilterProgram = new Program(baseVertexShader, bloomPrefilterShader);
+const bloomBlurProgram = new Program(baseVertexShader, bloomBlurShader);
+const bloomFinalProgram = new Program(baseVertexShader, bloomFinalShader);
+const sunraysMaskProgram = new Program(baseVertexShader, sunraysMaskShader);
+const sunraysProgram = new Program(baseVertexShader, sunraysShader);
+const splatProgram = new Program(baseVertexShader, splatShader);
+const advectionProgram = new Program(baseVertexShader, advectionShader);
+const divergenceProgram = new Program(baseVertexShader, divergenceShader);
+const curlProgram = new Program(baseVertexShader, curlShader);
+const vorticityProgram = new Program(baseVertexShader, vorticityShader);
+const pressureProgram = new Program(baseVertexShader, pressureShader);
+const gradienSubtractProgram = new Program(baseVertexShader, gradientSubtractShader);
+
+const displayMaterial = new Material(baseVertexShader, displayShaderSource);
+
+function initFramebuffers() {
+	let simRes = getResolution(config.SIM_RESOLUTION);
+	let dyeRes = getResolution(config.DYE_RESOLUTION);
+
+	const texType = ext.halfFloatTexType;
+	const rgba = ext.formatRGBA;
+	const rg = ext.formatRG;
+	const r = ext.formatR;
+	const filtering = ext.supportLinearFiltering ? gl.LINEAR : gl.NEAREST;
+
+	gl.disable(gl.BLEND);
+
+	if (dye == null)
+		dye = createDoubleFBO(
+			dyeRes.width,
+			dyeRes.height,
+			rgba.internalFormat,
+			rgba.format,
+			texType,
+			filtering
+		);
+	else
+		dye = resizeDoubleFBO(
+			dye,
+			dyeRes.width,
+			dyeRes.height,
+			rgba.internalFormat,
+			rgba.format,
+			texType,
+			filtering
+		);
+
+	if (velocity == null)
+		velocity = createDoubleFBO(
+			simRes.width,
+			simRes.height,
+			rg.internalFormat,
+			rg.format,
+			texType,
+			filtering
+		);
+	else
+		velocity = resizeDoubleFBO(
+			velocity,
+			simRes.width,
+			simRes.height,
+			rg.internalFormat,
+			rg.format,
+			texType,
+			filtering
+		);
+
+	divergence = createFBO(
+		simRes.width,
+		simRes.height,
+		r.internalFormat,
+		r.format,
+		texType,
+		gl.NEAREST
+	);
+	curl = createFBO(simRes.width, simRes.height, r.internalFormat, r.format, texType, gl.NEAREST);
+	pressure = createDoubleFBO(
+		simRes.width,
+		simRes.height,
+		r.internalFormat,
+		r.format,
+		texType,
+		gl.NEAREST
+	);
+
+	initBloomFramebuffers();
+	initSunraysFramebuffers();
+}
+
+function initBloomFramebuffers() {
+	let res = getResolution(config.BLOOM_RESOLUTION);
+
+	const texType = ext.halfFloatTexType;
+	const rgba = ext.formatRGBA;
+	const filtering = ext.supportLinearFiltering ? gl.LINEAR : gl.NEAREST;
+
+	bloom = createFBO(res.width, res.height, rgba.internalFormat, rgba.format, texType, filtering);
+
+	bloomFramebuffers.length = 0;
+	for (let i = 0; i < config.BLOOM_ITERATIONS; i++) {
+		let width = res.width >> (i + 1);
+		let height = res.height >> (i + 1);
+
+		if (width < 2 || height < 2) break;
+
+		let fbo = createFBO(width, height, rgba.internalFormat, rgba.format, texType, filtering);
+		bloomFramebuffers.push(fbo);
+	}
+}
+
+function initSunraysFramebuffers() {
+	let res = getResolution(config.SUNRAYS_RESOLUTION);
+
+	const texType = ext.halfFloatTexType;
+	const r = ext.formatR;
+	const filtering = ext.supportLinearFiltering ? gl.LINEAR : gl.NEAREST;
+
+	sunrays = createFBO(res.width, res.height, r.internalFormat, r.format, texType, filtering);
+	sunraysTemp = createFBO(res.width, res.height, r.internalFormat, r.format, texType, filtering);
+}
+
+function createFBO(w, h, internalFormat, format, type, param) {
+	gl.activeTexture(gl.TEXTURE0);
+	let texture = gl.createTexture();
+	gl.bindTexture(gl.TEXTURE_2D, texture);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, param);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, param);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+	gl.texImage2D(gl.TEXTURE_2D, 0, internalFormat, w, h, 0, format, type, null);
+
+	let fbo = gl.createFramebuffer();
+	gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+	gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0);
+	gl.viewport(0, 0, w, h);
+	gl.clear(gl.COLOR_BUFFER_BIT);
+
+	let texelSizeX = 1.0 / w;
+	let texelSizeY = 1.0 / h;
+
+	return {
+		texture,
+		fbo,
+		width: w,
+		height: h,
+		texelSizeX,
+		texelSizeY,
+		attach(id) {
+			gl.activeTexture(gl.TEXTURE0 + id);
+			gl.bindTexture(gl.TEXTURE_2D, texture);
+			return id;
+		}
+	};
+}
+
+function createDoubleFBO(w, h, internalFormat, format, type, param) {
+	let fbo1 = createFBO(w, h, internalFormat, format, type, param);
+	let fbo2 = createFBO(w, h, internalFormat, format, type, param);
+
+	return {
+		width: w,
+		height: h,
+		texelSizeX: fbo1.texelSizeX,
+		texelSizeY: fbo1.texelSizeY,
+		get read() {
+			return fbo1;
+		},
+		set read(value) {
+			fbo1 = value;
+		},
+		get write() {
+			return fbo2;
+		},
+		set write(value) {
+			fbo2 = value;
+		},
+		swap() {
+			let temp = fbo1;
+			fbo1 = fbo2;
+			fbo2 = temp;
+		}
+	};
+}
+
+function resizeFBO(target, w, h, internalFormat, format, type, param) {
+	let newFBO = createFBO(w, h, internalFormat, format, type, param);
+	copyProgram.bind();
+	gl.uniform1i(copyProgram.uniforms.uTexture, target.attach(0));
+	blit(newFBO);
+	return newFBO;
+}
+
+function resizeDoubleFBO(target, w, h, internalFormat, format, type, param) {
+	if (target.width == w && target.height == h) return target;
+	target.read = resizeFBO(target.read, w, h, internalFormat, format, type, param);
+	target.write = createFBO(w, h, internalFormat, format, type, param);
+	target.width = w;
+	target.height = h;
+	target.texelSizeX = 1.0 / w;
+	target.texelSizeY = 1.0 / h;
+	return target;
+}
+
+function createTextureAsync(url) {
+	let texture = gl.createTexture();
+	gl.bindTexture(gl.TEXTURE_2D, texture);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
+	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
+	gl.texImage2D(
+		gl.TEXTURE_2D,
+		0,
+		gl.RGB,
+		1,
+		1,
+		0,
+		gl.RGB,
+		gl.UNSIGNED_BYTE,
+		new Uint8Array([255, 255, 255])
+	);
+
+	let obj = {
+		texture,
+		width: 1,
+		height: 1,
+		attach(id) {
+			gl.activeTexture(gl.TEXTURE0 + id);
+			gl.bindTexture(gl.TEXTURE_2D, texture);
+			return id;
+		}
+	};
+
+	let image = new Image();
+	image.onload = () => {
+		obj.width = image.width;
+		obj.height = image.height;
+		gl.bindTexture(gl.TEXTURE_2D, texture);
+		gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, image);
+	};
+	image.src = url;
+
+	return obj;
+}
+
+function updateKeywords() {
+	let displayKeywords = [];
+	if (config.SHADING) displayKeywords.push('SHADING');
+	if (config.BLOOM) displayKeywords.push('BLOOM');
+	if (config.SUNRAYS) displayKeywords.push('SUNRAYS');
+	displayMaterial.setKeywords(displayKeywords);
+}
+
+updateKeywords();
+initFramebuffers();
+multipleSplats(25);
+
+let lastUpdateTime = Date.now();
+let colorUpdateTimer = 0.0;
+update();
+
+function update() {
+	const dt = calcDeltaTime() * (config.RENDER_SPEED ?? 1.0);
+	if (resizeCanvas()) initFramebuffers();
+	updateColors(dt);
+	applyInputs();
+	if (!config.PAUSED) step(dt);
+	render(null);
+	requestAnimationFrame(update);
+}
+
+function calcDeltaTime() {
+	let now = Date.now();
+	let dt = (now - lastUpdateTime) / 1000;
+	dt = Math.min(dt, 0.016666);
+	lastUpdateTime = now;
+	return dt;
+}
+
+function resizeCanvas() {
+	let width = scaleByPixelRatio(canvas.clientWidth);
+	let height = scaleByPixelRatio(canvas.clientHeight);
+	if (canvas.width != width || canvas.height != height) {
+		canvas.width = width;
+		canvas.height = height;
+		return true;
+	}
+	return false;
+}
+
+function updateColors(dt) {
+	if (!config.COLORFUL) return;
+
+	colorUpdateTimer += dt * config.COLOR_UPDATE_SPEED;
+	if (colorUpdateTimer >= 1) {
+		colorUpdateTimer = wrap(colorUpdateTimer, 0, 1);
+		pointers.forEach((p) => {
+			p.color = generateColor();
+		});
+	}
+}
+
+function applyInputs() {
+	if (splatStack.length > 0) multipleSplats(splatStack.pop());
+
+	pointers.forEach((p) => {
+		if (p.moved) {
+			p.moved = false;
+			splatPointer(p);
+		}
+	});
+}
+
+function step(dt) {
+	gl.disable(gl.BLEND);
+
+	curlProgram.bind();
+	gl.uniform2f(curlProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+	gl.uniform1i(curlProgram.uniforms.uVelocity, velocity.read.attach(0));
+	blit(curl);
+
+	vorticityProgram.bind();
+	gl.uniform2f(vorticityProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+	gl.uniform1i(vorticityProgram.uniforms.uVelocity, velocity.read.attach(0));
+	gl.uniform1i(vorticityProgram.uniforms.uCurl, curl.attach(1));
+	gl.uniform1f(vorticityProgram.uniforms.curl, config.CURL);
+	gl.uniform1f(vorticityProgram.uniforms.dt, dt);
+	blit(velocity.write);
+	velocity.swap();
+
+	divergenceProgram.bind();
+	gl.uniform2f(divergenceProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+	gl.uniform1i(divergenceProgram.uniforms.uVelocity, velocity.read.attach(0));
+	blit(divergence);
+
+	clearProgram.bind();
+	gl.uniform1i(clearProgram.uniforms.uTexture, pressure.read.attach(0));
+	gl.uniform1f(clearProgram.uniforms.value, config.PRESSURE);
+	blit(pressure.write);
+	pressure.swap();
+
+	pressureProgram.bind();
+	gl.uniform2f(pressureProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+	gl.uniform1i(pressureProgram.uniforms.uDivergence, divergence.attach(0));
+	for (let i = 0; i < config.PRESSURE_ITERATIONS; i++) {
+		gl.uniform1i(pressureProgram.uniforms.uPressure, pressure.read.attach(1));
+		blit(pressure.write);
+		pressure.swap();
+	}
+
+	gradienSubtractProgram.bind();
+	gl.uniform2f(gradienSubtractProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+	gl.uniform1i(gradienSubtractProgram.uniforms.uPressure, pressure.read.attach(0));
+	gl.uniform1i(gradienSubtractProgram.uniforms.uVelocity, velocity.read.attach(1));
+	blit(velocity.write);
+	velocity.swap();
+
+	advectionProgram.bind();
+	gl.uniform2f(advectionProgram.uniforms.texelSize, velocity.texelSizeX, velocity.texelSizeY);
+	if (!ext.supportLinearFiltering)
+		gl.uniform2f(advectionProgram.uniforms.dyeTexelSize, velocity.texelSizeX, velocity.texelSizeY);
+	let velocityId = velocity.read.attach(0);
+	gl.uniform1i(advectionProgram.uniforms.uVelocity, velocityId);
+	gl.uniform1i(advectionProgram.uniforms.uSource, velocityId);
+	gl.uniform1f(advectionProgram.uniforms.dt, dt);
+	gl.uniform1f(advectionProgram.uniforms.dissipation, config.VELOCITY_DISSIPATION);
+	blit(velocity.write);
+	velocity.swap();
+
+	if (!ext.supportLinearFiltering)
+		gl.uniform2f(advectionProgram.uniforms.dyeTexelSize, dye.texelSizeX, dye.texelSizeY);
+	gl.uniform1i(advectionProgram.uniforms.uVelocity, velocity.read.attach(0));
+	gl.uniform1i(advectionProgram.uniforms.uSource, dye.read.attach(1));
+	gl.uniform1f(advectionProgram.uniforms.dissipation, config.DENSITY_DISSIPATION);
+	blit(dye.write);
+	dye.swap();
+}
+
+function render(target) {
+	if (config.BLOOM) applyBloom(dye.read, bloom);
+	if (config.SUNRAYS) {
+		applySunrays(dye.read, dye.write, sunrays);
+		blur(sunrays, sunraysTemp, 1);
+	}
+
+	if (target == null || !config.TRANSPARENT) {
+		gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
+		gl.enable(gl.BLEND);
+	} else {
+		gl.disable(gl.BLEND);
+	}
+
+	if (!config.TRANSPARENT) drawColor(target, normalizeColor(config.BACK_COLOR));
+	if (target == null && config.TRANSPARENT) drawCheckerboard(target);
+	drawDisplay(target);
+}
+
+function drawColor(target, color) {
+	colorProgram.bind();
+	gl.uniform4f(colorProgram.uniforms.color, color.r, color.g, color.b, 1);
+	blit(target);
+}
+
+function drawCheckerboard(target) {
+	checkerboardProgram.bind();
+	gl.uniform1f(checkerboardProgram.uniforms.aspectRatio, canvas.width / canvas.height);
+	blit(target);
+}
+
+function drawDisplay(target) {
+	let width = target == null ? gl.drawingBufferWidth : target.width;
+	let height = target == null ? gl.drawingBufferHeight : target.height;
+
+	displayMaterial.bind();
+	if (config.SHADING) gl.uniform2f(displayMaterial.uniforms.texelSize, 1.0 / width, 1.0 / height);
+	gl.uniform1i(displayMaterial.uniforms.uTexture, dye.read.attach(0));
+	if (config.BLOOM) {
+		gl.uniform1i(displayMaterial.uniforms.uBloom, bloom.attach(1));
+		gl.uniform1i(displayMaterial.uniforms.uDithering, ditheringTexture.attach(2));
+		let scale = getTextureScale(ditheringTexture, width, height);
+		gl.uniform2f(displayMaterial.uniforms.ditherScale, scale.x, scale.y);
+	}
+	if (config.SUNRAYS) gl.uniform1i(displayMaterial.uniforms.uSunrays, sunrays.attach(3));
+	blit(target);
+}
+
+function applyBloom(source, destination) {
+	if (bloomFramebuffers.length < 2) return;
+
+	let last = destination;
+
+	gl.disable(gl.BLEND);
+	bloomPrefilterProgram.bind();
+	let knee = config.BLOOM_THRESHOLD * config.BLOOM_SOFT_KNEE + 0.0001;
+	let curve0 = config.BLOOM_THRESHOLD - knee;
+	let curve1 = knee * 2;
+	let curve2 = 0.25 / knee;
+	gl.uniform3f(bloomPrefilterProgram.uniforms.curve, curve0, curve1, curve2);
+	gl.uniform1f(bloomPrefilterProgram.uniforms.threshold, config.BLOOM_THRESHOLD);
+	gl.uniform1i(bloomPrefilterProgram.uniforms.uTexture, source.attach(0));
+	blit(last);
+
+	bloomBlurProgram.bind();
+	for (let i = 0; i < bloomFramebuffers.length; i++) {
+		let dest = bloomFramebuffers[i];
+		gl.uniform2f(bloomBlurProgram.uniforms.texelSize, last.texelSizeX, last.texelSizeY);
+		gl.uniform1i(bloomBlurProgram.uniforms.uTexture, last.attach(0));
+		blit(dest);
+		last = dest;
+	}
+
+	gl.blendFunc(gl.ONE, gl.ONE);
+	gl.enable(gl.BLEND);
+
+	for (let i = bloomFramebuffers.length - 2; i >= 0; i--) {
+		let baseTex = bloomFramebuffers[i];
+		gl.uniform2f(bloomBlurProgram.uniforms.texelSize, last.texelSizeX, last.texelSizeY);
+		gl.uniform1i(bloomBlurProgram.uniforms.uTexture, last.attach(0));
+		gl.viewport(0, 0, baseTex.width, baseTex.height);
+		blit(baseTex);
+		last = baseTex;
+	}
+
+	gl.disable(gl.BLEND);
+	bloomFinalProgram.bind();
+	gl.uniform2f(bloomFinalProgram.uniforms.texelSize, last.texelSizeX, last.texelSizeY);
+	gl.uniform1i(bloomFinalProgram.uniforms.uTexture, last.attach(0));
+	gl.uniform1f(bloomFinalProgram.uniforms.intensity, config.BLOOM_INTENSITY);
+	blit(destination);
+}
+
+function applySunrays(source, mask, destination) {
+	gl.disable(gl.BLEND);
+	sunraysMaskProgram.bind();
+	gl.uniform1i(sunraysMaskProgram.uniforms.uTexture, source.attach(0));
+	blit(mask);
+
+	sunraysProgram.bind();
+	gl.uniform1f(sunraysProgram.uniforms.weight, config.SUNRAYS_WEIGHT);
+	gl.uniform1i(sunraysProgram.uniforms.uTexture, mask.attach(0));
+	blit(destination);
+}
+
+function blur(target, temp, iterations) {
+	blurProgram.bind();
+	for (let i = 0; i < iterations; i++) {
+		gl.uniform2f(blurProgram.uniforms.texelSize, target.texelSizeX, 0.0);
+		gl.uniform1i(blurProgram.uniforms.uTexture, target.attach(0));
+		blit(temp);
+
+		gl.uniform2f(blurProgram.uniforms.texelSize, 0.0, target.texelSizeY);
+		gl.uniform1i(blurProgram.uniforms.uTexture, temp.attach(0));
+		blit(target);
+	}
+}
+
+function splatPointer(pointer) {
+	let dx = pointer.deltaX * config.SPLAT_FORCE * 5;
+	let dy = pointer.deltaY * config.SPLAT_FORCE * 5;
+	splat(pointer.texcoordX, pointer.texcoordY, dx, dy, pointer.color);
+}
+
+function multipleSplats(amount) {
+	for (let i = 0; i < amount; i++) {
+		const color = generateColor();
+		color.r *= 10.0;
+		color.g *= 10.0;
+		color.b *= 10.0;
+		const x = Math.random();
+		const y = Math.random() < 0.5 ? 0.8 : 0.2;
+		const dx = 100 * (Math.random() - 0.5);
+		const dy = 1000 * (Math.random() - 0.5);
+		splat(x, y, dx, dy, color);
+	}
+}
+
+function splat(x, y, dx, dy, color) {
+	splatProgram.bind();
+	gl.uniform1i(splatProgram.uniforms.uTarget, velocity.read.attach(0));
+	gl.uniform1f(splatProgram.uniforms.aspectRatio, canvas.width / canvas.height);
+	gl.uniform2f(splatProgram.uniforms.point, x, y);
+	gl.uniform3f(splatProgram.uniforms.color, dx, dy, 0.0);
+	gl.uniform1f(splatProgram.uniforms.radius, correctRadius(config.SPLAT_RADIUS / 100.0));
+	blit(velocity.write);
+	velocity.swap();
+
+	gl.uniform1i(splatProgram.uniforms.uTarget, dye.read.attach(0));
+	gl.uniform3f(splatProgram.uniforms.color, color.r, color.g, color.b);
+	blit(dye.write);
+	dye.swap();
+}
+
+function correctRadius(radius) {
+	let aspectRatio = canvas.width / canvas.height;
+	if (aspectRatio > 1) radius *= aspectRatio;
+	return radius;
+}
+
+canvas.addEventListener('mousedown', (e) => {
+	let posX = scaleByPixelRatio(e.offsetX);
+	let posY = scaleByPixelRatio(e.offsetY);
+	let pointer = pointers.find((p) => p.id == -1);
+	if (pointer == null) pointer = new PointerPrototype();
+	updatePointerDownData(pointer, -1, posX, posY);
+});
+
+document.body.addEventListener('mousemove', (e) => {
+	let pointer = pointers[0];
+	// if (!pointer.down) return;
+	let posX = scaleByPixelRatio(e.offsetX);
+	let posY = scaleByPixelRatio(e.offsetY);
+	updatePointerMoveData(pointer, posX, posY);
+});
+
+window.addEventListener('mouseup', () => {
+	updatePointerUpData(pointers[0]);
+});
+
+document.body.addEventListener('touchstart', (e) => {
+	e.preventDefault();
+	const touches = e.targetTouches;
+	while (touches.length >= pointers.length) pointers.push(new PointerPrototype());
+	for (let i = 0; i < touches.length; i++) {
+		let posX = scaleByPixelRatio(touches[i].pageX);
+		let posY = scaleByPixelRatio(touches[i].pageY);
+		updatePointerDownData(pointers[i + 1], touches[i].identifier, posX, posY);
+	}
+});
+
+document.body.addEventListener(
+	'touchmove',
+	(e) => {
+		e.preventDefault();
+		const touches = e.targetTouches;
+		for (let i = 0; i < touches.length; i++) {
+			let pointer = pointers[i + 1];
+			if (!pointer.down) continue;
+			let posX = scaleByPixelRatio(touches[i].pageX);
+			let posY = scaleByPixelRatio(touches[i].pageY);
+			updatePointerMoveData(pointer, posX, posY);
+		}
+	},
+	false
+);
+
+document.body.addEventListener('touchend', (e) => {
+	const touches = e.changedTouches;
+	for (const element of touches) {
+		let pointer = pointers.find((p) => p.id == element.identifier);
+		if (pointer == null) continue;
+		updatePointerUpData(pointer);
+	}
+});
+
+// window.addEventListener('keydown', (e) => {
+// 	if (e.code === 'KeyP') config.PAUSED = !config.PAUSED;
+// 	if (e.key === ' ') splatStack.push(parseInt(Math.random() * 20) + 5);
+// });
+
+function updatePointerDownData(pointer, id, posX, posY) {
+	pointer.id = id;
+	pointer.down = true;
+	pointer.moved = false;
+	pointer.texcoordX = posX / canvas.width;
+	pointer.texcoordY = 1.0 - posY / canvas.height;
+	pointer.prevTexcoordX = pointer.texcoordX;
+	pointer.prevTexcoordY = pointer.texcoordY;
+	pointer.deltaX = 0;
+	pointer.deltaY = 0;
+	pointer.color = generateColor();
+}
+
+function updatePointerMoveData(pointer, posX, posY) {
+	pointer.prevTexcoordX = pointer.texcoordX;
+	pointer.prevTexcoordY = pointer.texcoordY;
+	pointer.texcoordX = posX / canvas.width;
+	pointer.texcoordY = 1.0 - posY / canvas.height;
+	pointer.deltaX = correctDeltaX(pointer.texcoordX - pointer.prevTexcoordX);
+	pointer.deltaY = correctDeltaY(pointer.texcoordY - pointer.prevTexcoordY);
+	pointer.moved = Math.abs(pointer.deltaX) > 0 || Math.abs(pointer.deltaY) > 0;
+}
+
+function updatePointerUpData(pointer) {
+	pointer.down = false;
+}
+
+function correctDeltaX(delta) {
+	let aspectRatio = canvas.width / canvas.height;
+	if (aspectRatio < 1) delta *= aspectRatio;
+	return delta;
+}
+
+function correctDeltaY(delta) {
+	let aspectRatio = canvas.width / canvas.height;
+	if (aspectRatio > 1) delta /= aspectRatio;
+	return delta;
+}
+
+function generateColor() {
+	let c = HSVtoRGB(Math.random() * (config.END_HUE - config.START_HUE) + config.START_HUE, 1.0, 1.0);
+	c.r *= 0.15;
+	c.g *= 0.15;
+	c.b *= 0.15;
+	return c;
+}
+
+function HSVtoRGB(h, s, v) {
+	let r, g, b, i, f, p, q, t;
+	i = Math.floor(h * 6);
+	f = h * 6 - i;
+	p = v * (1 - s);
+	q = v * (1 - f * s);
+	t = v * (1 - (1 - f) * s);
+
+	switch (i % 6) {
+		case 0:
+			(r = v), (g = t), (b = p);
+			break;
+		case 1:
+			(r = q), (g = v), (b = p);
+			break;
+		case 2:
+			(r = p), (g = v), (b = t);
+			break;
+		case 3:
+			(r = p), (g = q), (b = v);
+			break;
+		case 4:
+			(r = t), (g = p), (b = v);
+			break;
+		case 5:
+			(r = v), (g = p), (b = q);
+			break;
+	}
+
+	return {
+		r,
+		g,
+		b
+	};
+}
+
+function normalizeColor(input) {
+	let output = {
+		r: input.r / 255,
+		g: input.g / 255,
+		b: input.b / 255
+	};
+	return output;
+}
+
+function wrap(value, min, max) {
+	let range = max - min;
+	if (range == 0) return min;
+	return ((value - min) % range) + min;
+}
+
+function getResolution(resolution) {
+	let aspectRatio = gl.drawingBufferWidth / gl.drawingBufferHeight;
+	if (aspectRatio < 1) aspectRatio = 1.0 / aspectRatio;
+
+	let min = Math.round(resolution);
+	let max = Math.round(resolution * aspectRatio);
+
+	if (gl.drawingBufferWidth > gl.drawingBufferHeight) return { width: max, height: min };
+	else return { width: min, height: max };
+}
+
+function getTextureScale(texture, width, height) {
+	return {
+		x: width / texture.width,
+		y: height / texture.height
+	};
+}
+
+function scaleByPixelRatio(input) {
+	let pixelRatio = window.devicePixelRatio || 1;
+	return Math.floor(input * pixelRatio);
+}
+
+function hashCode(s) {
+	if (s.length == 0) return 0;
+	let hash = 0;
+	for (let i = 0; i < s.length; i++) {
+		hash = (hash << 5) - hash + s.charCodeAt(i);
+		hash |= 0; // Convert to 32bit integer
+	}
+	return hash;
+}
+
+
+setInterval(() => {
+	multipleSplats(5);
+}, 500)

src/lib/cards/index.ts

···
 import { YoutubeCardDefinition } from './YoutubeVideoCard';
 import { BlueskyProfileCardDefinition } from './BlueskyProfileCard';
 import { GithubProfileCardDefitition } from './GitHubProfileCard';
+import { FluidTextCardDefinition } from './FluidTextCard';
 
 export const AllCardDefinitions = [
 	ImageCardDefinition,
···
 	DinoGameCardDefinition,
 	BlueskyProfileCardDefinition,
 	GithubProfileCardDefitition,
-	TetrisCardDefinition
+	TetrisCardDefinition,
+	FluidTextCardDefinition
 ] as const;
 
 export const CardDefinitionsByType = AllCardDefinitions.reduce(