mirror of
https://github.com/libretro/slang-shaders.git
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98 lines
3.0 KiB
Plaintext
98 lines
3.0 KiB
Plaintext
#version 450
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// Anaglyph to Side-by-Side
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// by hunterk
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// license: public domain
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//
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// This shader is designed to convert Mednafen-VB's anaglyph 3D output to
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// side-by-side 3D for use with VR headsets, such as Oculus Rift and Google Cardboard, and 3D TVs
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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 eye_sep;
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float y_loc;
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float BOTH;
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float ana_zoom;
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float WIDTH;
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float HEIGHT;
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float palette;
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float warp_enable;
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float warpX;
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float warpY;
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float anaglyph_selector;
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float eye_swap;
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} params;
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#pragma parameter eye_sep "Eye Separation" 0.5 -1.0 5.0 0.01
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#pragma parameter y_loc "Vertical Placement" 0.50 -1.0 1.0 0.025
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#pragma parameter BOTH "Horizontal Placement" 1.0 -2.0 2.0 0.005
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#pragma parameter ana_zoom "Zoom" 0.75 -2.0 2.0 0.05
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#pragma parameter WIDTH "Side-by-Side Image Width" 3.05 1.0 7.0 0.05
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#pragma parameter HEIGHT "Side-by-Side Image Height" 2.0 1.0 5.0 0.1
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#pragma parameter palette "Red Palette Toggle" 0.0 0.0 1.0 1.0
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#pragma parameter warp_enable "Lens Correction" 1.0 0.0 1.0 1.0
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#pragma parameter warpX "warpX" 0.3 0.0 0.5 0.05
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#pragma parameter warpY "warpY" 0.3 0.0 0.5 0.05
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#pragma parameter anaglyph_selector "Anaglyph Mode" 0.0 0.0 2.0 1.0
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#pragma parameter eye_swap "Swap Eyes" 0.0 0.0 1.0 1.0
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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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void main()
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{
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gl_Position = global.MVP * Position;
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vTexCoord = ((TexCoord.xy * 1.00001 - 0.5) * params.ana_zoom + 0.5) * vec2(params.WIDTH, params.HEIGHT) - vec2(params.BOTH, 0.0);
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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 = 2) uniform sampler2D Source;
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//warp function from Lottes' scanline shader
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vec2 Warp(vec2 pos){
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pos=pos*2.0-1.0;
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pos*=vec2(1.0+(pos.y*pos.y)*params.warpX,1.0+(pos.x*pos.x)*params.warpY);
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return pos*0.5+0.5;}
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void main()
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{
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vec2 coord1 = (params.warp_enable > 0.5) ? Warp((vTexCoord.xy - vec2(params.eye_sep, params.y_loc))) : (vTexCoord.xy - vec2(params.eye_sep, params.y_loc));
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vec2 coord2 = (params.warp_enable > 0.5) ? Warp((vTexCoord.xy + vec2(params.eye_sep, -params.y_loc))) : (vTexCoord.xy + vec2(params.eye_sep, -params.y_loc));
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vec4 frame1;
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vec4 frame2;
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if (params.eye_swap < 0.5){
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frame1 = texture(Source, coord1);
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frame2 = texture(Source, coord2);}
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else {
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frame1 = texture(Source, coord2);
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frame2 = texture(Source, coord1);}
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if (params.anaglyph_selector == 0.0){ //red/blue and red/cyan
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frame1.rgb = vec3(frame1.r);
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frame2.rgb = vec3(max(frame2.g, frame2.b));}
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else if (params.anaglyph_selector == 1.0){ //red/green and green/magenta
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frame1.rgb = vec3(max(frame1.r, frame1.b));
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frame2.rgb = vec3(frame2.g);}
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else { //yellow and blue
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frame1.rgb = vec3(max(frame1.r, frame1.g));
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frame2.rgb = vec3(frame2.b);}
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if (params.palette > 0.5)
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FragColor = frame1 + frame2;
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else
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FragColor = vec4(frame1.r + frame2.r, 0.0, 0.0, 1.0);
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} |