Revision: 26249
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at April 21, 2010 14:43 by vorp
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vec2 pos = mod(gl_FragCoord.xy,vec2(100));
if ((pos.x > 50.0)&&(pos.y > 50.0)){
gl_FragColor=vec4(1.0, 1.0, 1.0, 1.0);
}
if ((pos.x < 50.0)&&(pos.y < 50.0)){
gl_FragColor=vec4(1.0, 1.0, 1.0, 1.0);
}
if ((pos.x < 50.0)&&(pos.y > 50.0)){
gl_FragColor=vec4(0.0, 0.0, 0.0, 1.0);
}
if ((pos.x > 50.0)&&(pos.y < 50.0)){
gl_FragColor=vec4(0.0, 0.0, 0.0, 1.0);
}
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This, in the .frag shader will produce a screen-space checkboard.
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GLSL screen space checkerboard
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C