j0.lol
1// Vertex shader
2
3// TODO CITE
4// Somewhat referenced from:
5// https://github.com/gfx-rs/wgpu/blob/trunk/examples/features/src/shadow/shader.wgsl
6
7struct InstanceInput {
8 @location(5) model_matrix_0: vec4<f32>,
9 @location(6) model_matrix_1: vec4<f32>,
10 @location(7) model_matrix_2: vec4<f32>,
11 @location(8) model_matrix_3: vec4<f32>,
12
13 @location(9) normal_matrix_0: vec3<f32>,
14 @location(10) normal_matrix_1: vec3<f32>,
15 @location(11) normal_matrix_2: vec3<f32>,
16};
17
18struct Camera {
19 view_pos: vec4<f32>,
20 view_proj: mat4x4<f32>,
21}
22@group(0) @binding(0)
23var<uniform> camera: Camera;
24
25@group(0) @binding(1)
26var<uniform> light: Camera;
27
28struct VertexInput {
29 @location(0) position: vec3<f32>,
30 @location(1) tex_coords: vec2<f32>,
31 @location(2) normal: vec3<f32>,
32}
33
34@vertex
35fn vs_main(
36 model: VertexInput,
37 instance: InstanceInput,
38) -> @builtin(position) vec4<f32> {
39
40 let model_matrix = mat4x4<f32> (
41 instance.model_matrix_0,
42 instance.model_matrix_1,
43 instance.model_matrix_2,
44 instance.model_matrix_3,
45 );
46
47 let world_position: vec4<f32> = model_matrix * vec4<f32>(model.position, 1.0);
48
49 return light.view_proj * world_position;
50}