map_rainbow_vertex.frag

main 34 lines · 783 bytes Raw

Alex Commit Client Upload Part 1 19/10/2026 00:04

1attribute vec2 a_TexCoord;

2attribute vec2 a_Vertex;

4varying vec2 v_TexCoord;

5varying vec2 v_TexCoord2;

7uniform mat3 u_TextureMatrix;

8uniform mat3 u_TransformMatrix;

9uniform mat3 u_ProjectionMatrix;

11uniform vec2 u_Offset;

12uniform vec2 u_Center;

13uniform float u_Time;

15vec2 effectTextureSize = vec2(466.0, 342.0);

16vec2 direction = vec2(1.0,0.2);

17float speed = 200.0;

19vec2 rotate(vec2 v, float a) {

20 float s = sin(a);

21 float c = cos(a);

22 mat2 m = mat2(c, -s, s, c);

23 return m * v;

24}

26void main()

27{

28 gl_Position = vec4((u_ProjectionMatrix * u_TransformMatrix * vec3(a_Vertex.xy, 1.0)).xy, 1.0, 1.0);

29 v_TexCoord = (u_TextureMatrix * vec3(a_TexCoord,1.0)).xy;

31 v_TexCoord2 = ((a_Vertex + direction * u_Time * speed) / effectTextureSize);

32}