15 lines
315 B
GLSL
15 lines
315 B
GLSL
//modified version of [this shader](https://github.com/wessles/GLSL-CRT/blob/master/shader.frag)
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#version 300 es
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precision mediump float;
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in vec2 v_texcoord;
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uniform sampler2D tex;
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out vec4 FragColor;
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// [0,1]
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void main() {
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vec4 cta = texture(tex, v_texcoord);
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FragColor = vec4(cta.z, cta.y, cta.x, cta.a);
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}
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