ProjectArcade
38 строк · 776.0 Байт
1// by guest(r) - guest.r@gmail.com
2// license: GNU-GPL
3
4#ifdef GL_ES
5precision mediump float;
6precision mediump int;
7#endif
8
9attribute vec4 a_position;
10attribute vec2 a_texcoord0;
11uniform vec2 u_texelDelta;
12
13varying vec4 v_texcoord0;
14varying vec4 v_texcoord1;
15varying vec4 v_texcoord2;
16varying vec4 v_texcoord3;
17varying vec4 v_texcoord4;
18varying vec4 v_texcoord5;
19varying vec4 v_texcoord6;
20
21float scaleoffset = 0.8;
22
23void main()
24
25{
26float x = u_texelDelta.x*scaleoffset;
27float y = u_texelDelta.y*scaleoffset;
28gl_Position = a_position;
29v_texcoord0 = a_texcoord0.xyxy;
30v_texcoord1 = v_texcoord0;
31v_texcoord2 = v_texcoord0;
32v_texcoord4 = v_texcoord0;
33v_texcoord5 = v_texcoord0;
34v_texcoord1.y-=y;
35v_texcoord2.y+=y;
36v_texcoord4.x-=x;
37v_texcoord5.x+=x;
38}
39