image_vertex.frag

main 46 lines · 1.3 KB Raw

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

1attribute vec2 a_TexCoord;

2uniform mat3 u_TextureMatrix;

3varying vec2 v_TexCoord;

4varying vec2 v_TexCoord2;

5varying vec2 v_TexCoord3;

6attribute vec2 a_Vertex;

7uniform mat3 u_TransformMatrix;

8uniform mat3 u_ProjectionMatrix;

9uniform vec2 u_Offset;

10uniform vec2 u_Center;

11uniform float u_Time;

13vec2 effectTextureSize = vec2(480.0, 844.0);

14vec2 direction = vec2(1.0,1.0);

15float speed = 800.0;

17vec2 rotate(vec2 v, float a) {

18 float s = sin(a);

19 float c = cos(a);

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

21 return m * v;

22}

24void main()

25{

26 vec2 offset = direction * speed * u_Time;

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

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

29 v_TexCoord2 = (u_TextureMatrix * vec3(a_TexCoord + u_Offset,1.0)).xy;

31 vec2 vertex = a_Vertex;

32 if(vertex.x < u_Center.x) {

33 vertex.x = effectTextureSize.x / 10.0;

34 }

35 if(vertex.x > u_Center.x) {

36 vertex.x = effectTextureSize.x - effectTextureSize.x / 10.0;

37 }

38 if(vertex.y < u_Center.y) {

39 vertex.y = effectTextureSize.y / 10.0;

40 }

41 if(vertex.y > u_Center.y) {

42 vertex.y = effectTextureSize.y - effectTextureSize.y / 10.0;

43 }

45 v_TexCoord3 = ((vertex + direction * u_Time * speed) / effectTextureSize);

46}