47 lines
1.1 KiB
GLSL
47 lines
1.1 KiB
GLSL
# version 100
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precision mediump float;
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// Input vertex attributes (from vertex shader)
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varying vec2 fragTexCoord;
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varying vec4 fragColor;
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// Input uniform values
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uniform sampler2D texture0;
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uniform vec4 colDiffuse;
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// NOTE: Add here your custom variables
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float hatchOffsetY = 5.0f;
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float lumThreshold01 = 0.9f;
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float lumThreshold02 = 0.7f;
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float lumThreshold03 = 0.5f;
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float lumThreshold04 = 0.3f;
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void main()
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{
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vec3 tc = vec3(1.0, 1.0, 1.0);
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float lum = length(texture2D(texture0, fragTexCoord).rgb);
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if (lum < lumThreshold01)
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{
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if (mod(gl_FragCoord.x + gl_FragCoord.y, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
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}
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if (lum < lumThreshold02)
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{
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if (mod(gl_FragCoord .x - gl_FragCoord .y, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
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}
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if (lum < lumThreshold03)
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{
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if (mod(gl_FragCoord .x + gl_FragCoord .y - hatchOffsetY, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
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}
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if (lum < lumThreshold04)
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{
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if (mod(gl_FragCoord .x - gl_FragCoord .y - hatchOffsetY, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
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}
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gl_FragColor = vec4(tc, 1.0);
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} |