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https://github.com/italicsjenga/slang-shaders.git
synced 2024-11-26 09:21:30 +11:00
50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
#version 450
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layout(std140, set = 0, binding = 0) uniform UBO
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{
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mat4 MVP;
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vec4 OutputSize;
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vec4 OriginalSize;
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vec4 SourceSize;
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uint FrameCount;
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} global;
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////////////////////////////////////////////////////////
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// GTU-famicom version 0.50
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// Author: aliaspider - aliaspider@gmail.com
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// License: GPLv3
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////////////////////////////////////////////////////////
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#define GET_LEVEL(X) ((X)*(255.0f / (128.0f*(1.962f-.518f)))-(.518f / (1.962f-.518f)))
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#pragma stage vertex
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layout(location = 0) in vec4 Position;
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layout(location = 1) in vec2 TexCoord;
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layout(location = 0) out vec2 vTexCoord;
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layout(location = 1) out float colorPhase;
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void main()
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{
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gl_Position = global.MVP * Position;
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vTexCoord = TexCoord;
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vec2 pos = (vTexCoord.xy*global.OutputSize.xy)-0.5;
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colorPhase = 8.0001 + pos.x + pos.y * 4.0001 + global.FrameCount * 4.0001;
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}
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#pragma stage fragment
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layout(location = 0) in vec2 vTexCoord;
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layout(location = 1) in float colorPhase;
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layout(location = 0) out vec4 FragColor;
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layout(set = 0, binding = 2) uniform sampler2D Source;
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layout(set = 0, binding = 3) uniform sampler2D nestable;
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void main()
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{
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vec4 c = texture(Source, vTexCoord.xy);
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vec2 pixmapCoord;
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pixmapCoord.x = c.x * (15.0 / (16.0 * 4.0)) + c.y * (3.0 / 4.0) +(0.5 / (16.0 * 4.0));
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pixmapCoord.y = 1.0 - (floor(mod(colorPhase + 0.5, 12.0)) / (12.0 * 8.0) + c.z * (7.0 / 8.0) + (0.5 / (12.0 * 8.0)));
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FragColor = vec4(GET_LEVEL(texture(nestable, pixmapCoord.xy).r));//vec4(signal);
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} |