e85d191b46
- merge v0.01 --> Añadido fileselector - Añadidas fuentes de Gem y Pure Data - pix2jpg incluído en Gem. Archivos de construcción de Gem modificados. - Añadido fichero ompiling.txt con instrucciones de compilación
30 lines
695 B
GLSL
30 lines
695 B
GLSL
// Cyrille Henry 2007
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uniform sampler2D texture;
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const float dx = 1./500.; // change to gemwin dim
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void main (void)
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{
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vec2 tmp = (gl_TextureMatrix[0] * gl_TexCoord[0]).st;
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float x = tmp.s;
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float y = tmp.t;
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vec4 c;
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c = texture2D(texture, vec2(x-dx, y-dx));
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c += texture2D(texture, vec2(x, y-dx));
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c += texture2D(texture, vec2(x+dx, y-dx));
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c += texture2D(texture, vec2(x-dx, y));
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c += texture2D(texture, vec2(x+dx, y));
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c += texture2D(texture, vec2(x-dx, y+dx));
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c += texture2D(texture, vec2(x, y+dx));
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c += texture2D(texture, vec2(x+dx, y+dx));
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vec4 c1 = texture2D(texture, vec2(x, y));
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c.rgb = vec3(step(2.5-c1.r,c.r)*step(c.r,3.5));
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c.a = 1.;
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gl_FragColor = c;
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}
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