26 lines
737 B
Forth
26 lines
737 B
Forth
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#version 330 core
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out vec4 FragColor;
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in vec2 TexCoords;
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uniform sampler2D screenTexture;
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uniform vec3 screenSize;
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uniform bool screenBurn;
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void main()
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{
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vec3 col = texture(screenTexture, TexCoords).rgb;
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float scanLine = mod(gl_FragCoord.y, 2.0) * 0.25;
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vec3 scanColor = col.rgb - scanLine;
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if (col.r < 0.1f && col.g < 0.1f && col.b < 0.1f) {
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if (screenBurn) {
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float dist = (1.0 - distance(vec2(gl_FragCoord.x / screenSize.x, gl_FragCoord.y / screenSize.y), vec2(0.5,0.5))) * 0.2;
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FragColor = vec4(0.0, dist, dist, 1.0);
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} else {
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FragColor = vec4(0.0, 0.0, 0.0, 1.0);
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}
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} else {
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FragColor = vec4(scanColor, 1.0);
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}
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}
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