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https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-09-22 13:21:23 +02:00
31 lines
612 B
GLSL
31 lines
612 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 vec2 dimension;
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uniform vec2 center;
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uniform int axis;
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uniform float amount;
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uniform int wrap;
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void main() {
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vec2 pos = v_vTexcoord;
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vec2 cnt = center / dimension;
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if(axis == 0)
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pos.x += (pos.y - cnt.y) * amount;
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else
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pos.y += (pos.x - cnt.x) * amount;
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if(wrap == 1) {
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if(pos.x > 1.) pos.x = fract(pos.x);
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if(pos.x < 0.) pos.x = abs(fract(pos.x));
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if(pos.y > 1.) pos.y = fract(pos.y);
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if(pos.y < 0.) pos.y = abs(fract(pos.y));
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}
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gl_FragColor = texture2D( gm_BaseTexture, pos );
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}
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