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- #ifdef GL_ES
- #define MED mediump
- #else
- #define MED
- #endif
- attribute vec4 a_position;
- attribute vec2 a_texCoord0;
- uniform vec2 dir;
- uniform vec2 size;
- varying MED vec2 v_texCoords0;
- varying MED vec2 v_texCoords1;
- varying MED vec2 v_texCoords2;
- varying MED vec2 v_texCoords3;
- varying MED vec2 v_texCoords4;
- const vec2 futher = vec2(3.2307692308, 3.2307692308);
- const vec2 closer = vec2(1.3846153846, 1.3846153846);
- void main()
- {
- vec2 sizeAndDir = dir / size;
- vec2 f = futher*sizeAndDir;
- vec2 c = closer*sizeAndDir;
- v_texCoords0 = a_texCoord0 - f;
- v_texCoords1 = a_texCoord0 - c;
- v_texCoords2 = a_texCoord0;
- v_texCoords3 = a_texCoord0 + c;
- v_texCoords4 = a_texCoord0 + f;
- gl_Position = a_position;
- }
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