mirror of
https://github.com/italicsjenga/slang-shaders.git
synced 2024-11-26 01:11:32 +11:00
259ff81f4b
* Move initial batch of shaders and presets to smoothing subdirectory * Rename smoothing to edge enhancement * Move cubic and windowed into interpolation * Fix some presets * Fix rest of presets * Rename edge-enhancement to edge-smoothing * Move pixel art scalers into separate directory separate from 'interpolation' * Flatten interpolation/cubic into interpolation/
80 lines
1.6 KiB
Plaintext
80 lines
1.6 KiB
Plaintext
#version 450
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/*
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April 2023
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Adjustable Bilinear by DariusG
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*/
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#pragma parameter sharp1 "Horizontal Sharpness" 1.0 1.0 10.0 0.1
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#pragma parameter sharp2 "Vertical Sharpness" 1.0 1.0 10.0 0.1
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layout(push_constant) uniform Push
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{
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vec4 SourceSize;
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vec4 OriginalSize;
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vec4 OutputSize;
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float sharp1;
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float sharp2;
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} params;
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#define sharp1 params.sharp1
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#define sharp2 params.sharp2
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#define SourceSize params.SourceSize
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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 FinalViewportSize;
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vec4 OutputSize;
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} global;
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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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void main()
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{
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gl_Position = global.MVP * Position;
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vTexCoord = TexCoord*1.0001;
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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 = 0) out vec4 FragColor;
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layout(set = 0, binding = 1) uniform sampler2D Source;
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void main()
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{
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vec2 OneTexel = SourceSize.zw;
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vec2 OGL2Pos = vTexCoord * SourceSize.xy;
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vec2 pC4 = floor(OGL2Pos) * OneTexel + 0.5*OneTexel;
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vec2 coord4 = vec2 (0.0);
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vec2 coord2 = vec2 (OneTexel.x, 0.0 );
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vec2 coord1 = vec2 (0.0, OneTexel.y);
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vec2 coord3 = vec2 (OneTexel.x, OneTexel.y);
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vec4 s4 = vec4(texture(Source, pC4 + coord4));
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vec4 s2 = vec4(texture(Source, pC4 + coord2));
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vec4 s1 = vec4(texture(Source, pC4 + coord1));
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vec4 s3 = vec4(texture(Source, pC4 + coord3));
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float fu = pow(fract(OGL2Pos.x),sharp1);
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float fv = pow(fract(OGL2Pos.y),sharp2);
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vec4 tmp1 = mix(s4, s2, fu);
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vec4 tmp2 = mix(s1, s3, fu);
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vec4 t0 = mix(tmp1, tmp2, fv);
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FragColor = t0;
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}
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