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https://github.com/Ttanasart-pt/Pixel-Composer.git
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25 lines
518 B
GLSL
25 lines
518 B
GLSL
//
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// Simple passthrough fragment shader
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//
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varying vec2 v_vTexcoord;
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varying vec4 v_vColour;
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uniform float angle;
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uniform float amount;
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uniform int blend;
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void main() {
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float prog = .5 + (v_vTexcoord.x - .5) * cos(angle) - (v_vTexcoord.y - .5) * sin(angle);
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float _a = 1. / amount;
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float _s = mod(prog, _a);
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if(blend == 0) {
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if(_s > _a / 2.)
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gl_FragColor = vec4(vec3(0.), 1.);
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else
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gl_FragColor = vec4(vec3(1.), 1.);
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} else {
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gl_FragColor = vec4(vec3(abs(_s / _a - 0.5) * 2.), 1.);
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}
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}
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