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16 lines
443 B
GLSL
16 lines
443 B
GLSL
//1-input
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//written by Tim Caldwell
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// this is a simple example of how to change incoming textures colour
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varying vec2 v_texcoord;
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uniform sampler2D u_tex0;
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uniform vec2 u_resolution;
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uniform float u_time;
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uniform float u_x0;
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uniform float u_x1;
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uniform float u_x2;
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void main() {
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vec4 texColour = texture2D(u_tex0, v_texcoord);
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gl_FragColor = vec4(1.0 - u_x0 - texColour.r,1.0 -u_x1-texColour.g,1.0 - u_x2-texColour.b,texColour.a);
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}
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