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https://github.com/italicsjenga/slang-shaders.git
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65 lines
2 KiB
Plaintext
65 lines
2 KiB
Plaintext
#version 450
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// side-by-side to shutter 3D
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// author: hunterk
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// license: public domain
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// convert side-by-side content to work with shutter glasses
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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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uint FrameCount;
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float split_dist, shutter_zoom, shutter_eye_swap, aspect_mod, crop;
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} params;
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#pragma parameter split_dist "Eye Separation" 0.25 -1.0 1.0 0.001
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#pragma parameter shutter_zoom "Shutter Zoom" 0.8 0.0 2.0 0.01
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#pragma parameter shutter_eye_swap "Shutter Swap Eyes" 0.0 0.0 1.0 1.0
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#pragma parameter aspect_mod "Aspect Mod" 0.55 0.0 2.0 0.01
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#pragma parameter crop "Crop Edges" 0.5 0.0 1.0 0.005
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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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} 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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layout(location = 1) out vec2 leftCoord;
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layout(location = 2) out vec2 rightCoord;
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layout(location = 3) out vec2 oscillator;
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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 - 0.5) * params.shutter_zoom) * vec2(params.aspect_mod, 1.0)) + 0.5;
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leftCoord = vTexCoord + vec2(params.split_dist, 0.);
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rightCoord = vTexCoord - vec2(params.split_dist, 0.);
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oscillator.x = mod(float(params.FrameCount), 2.0);
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oscillator.y = 1. - oscillator.x;
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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 vec2 leftCoord;
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layout(location = 2) in vec2 rightCoord;
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layout(location = 3) in vec2 oscillator;
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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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void main()
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{
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vec4 left_eye = texture(Source, leftCoord);
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left_eye = (leftCoord.x < 1.0 && leftCoord.x > params.crop)
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? left_eye : vec4(0.0);
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vec4 right_eye = texture(Source, rightCoord);
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right_eye = (rightCoord.x > 0.0 && rightCoord.x < params.crop)
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? right_eye : vec4(0.0);
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FragColor = mix(left_eye, right_eye, (bool(params.shutter_eye_swap)) ? oscillator.x : oscillator.y);
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}
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