A game about forced loneliness, made by TACStudios
tacstudios.tngl.sh
1#ifndef UNITY_SDF2D_INCLUDED
2#define UNITY_SDF2D_INCLUDED
3
4// Ref: https://www.iquilezles.org/www/articles/distfunctions2d/distfunctions2d.htm
5
6float CircleSDF(float2 position, float radius)
7{
8 return length(position) - radius;
9}
10
11float RectangleSDF(float2 position, float2 bound)
12{
13 float2 d = abs(position) - bound;
14 return length(max(d, float2(0, 0))) + min(max(d.x, d.y), 0.0);
15}
16
17float EllipseSDF(float2 position, float2 r)
18{
19 float2 p = position;
20 float2 r2 = r*r;
21
22 float k0 = length(p/r);
23 float k1 = length(p/r2);
24
25 return k0*(k0 - 1.0)/k1;
26}
27
28#endif // UNITY_SDF2D_INCLUDED