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Add crt-hyllian-sinc.fx, crt-geo-zfast.fx and update others (#3252)
* Add crt-hyllian-sinc.fx, crt-geo-zfast.fx and update others - Add crt-hyllian-sinc.fx; - Add crt-geo-zfast.fx; - Updated bicubic.fx and lanczos3.fx to allow prescaling; - Add include folder and mask.fxh and geom.fxh; * Update psx.jpg - No logos anymore.
This commit is contained in:
Hyllian
225
data/resources/shaders/reshade/Shaders/misc/include/geom.fxh
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data/resources/shaders/reshade/Shaders/misc/include/geom.fxh
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#ifndef GEOM_PARAMS_H
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#define GEOM_PARAMS_H
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/*
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Geom Shader - a modified CRT-Geom without CRT features made to be appended/integrated
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into any other shaders and provide curvature/warping/oversampling features.
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Adapted by Hyllian (2024).
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*/
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/*
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CRT-interlaced
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Copyright (C) 2010-2012 cgwg, Themaister and DOLLS
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your option)
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any later version.
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(cgwg gave their consent to have the original version of this shader
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distributed under the GPL in this message:
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http://board.byuu.org/viewtopic.php?p=26075#p26075
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"Feel free to distribute my shaders under the GPL. After all, the
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barrel distortion code was taken from the Curvature shader, which is
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under the GPL."
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)
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This shader variant is pre-configured with screen curvature
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*/
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uniform bool geom_curvature <
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ui_type = "radio";
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ui_category = "Geom Curvature";
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ui_label = "Geom Curvature Toggle";
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> = 1.0;
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uniform float geom_R <
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ui_type = "drag";
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ui_min = 0.1;
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ui_max = 10.0;
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ui_step = 0.1;
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ui_category = "Geom Curvature";
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ui_label = "Geom Curvature Radius";
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> = 2.0;
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uniform float geom_d <
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ui_type = "drag";
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ui_min = 0.1;
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ui_max = 3.0;
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ui_step = 0.1;
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ui_category = "Geom Curvature";
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ui_label = "Geom Distance";
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> = 1.5;
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uniform bool geom_invert_aspect <
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ui_type = "radio";
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ui_category = "Geom Curvature";
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ui_label = "Geom Curvature Aspect Inversion";
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> = 0.0;
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uniform float geom_cornersize <
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ui_type = "drag";
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ui_min = 0.001;
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ui_max = 1.0;
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ui_step = 0.005;
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ui_category = "Geom Curvature";
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ui_label = "Geom Corner Size";
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> = 0.03;
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uniform float geom_cornersmooth <
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ui_type = "drag";
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ui_min = 80.0;
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ui_max = 2000.0;
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ui_step = 100.0;
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ui_category = "Geom Curvature";
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ui_label = "Geom Corner Smoothness";
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> = 1000.0;
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uniform float geom_x_tilt <
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ui_type = "drag";
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ui_min = -1.0;
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ui_max = 1.0;
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ui_step = 0.05;
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ui_category = "Geom Curvature";
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ui_label = "Geom Horizontal Tilt";
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> = 0.0;
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uniform float geom_y_tilt <
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ui_type = "drag";
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ui_min = -1.0;
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ui_max = 1.0;
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ui_step = 0.05;
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ui_category = "Geom Curvature";
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ui_label = "Geom Vertical Tilt";
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> = 0.0;
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uniform float geom_overscan_x <
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ui_type = "drag";
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ui_min = -125.0;
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ui_max = 125.0;
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ui_step = 0.5;
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ui_category = "Geom Curvature";
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ui_label = "Geom Horiz. Overscan %";
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> = 100.0;
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uniform float geom_overscan_y <
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ui_type = "drag";
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ui_min = -125.0;
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ui_max = 125.0;
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ui_step = 0.5;
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ui_category = "Geom Curvature";
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ui_label = "Geom Vert. Overscan %";
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> = 100.0;
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uniform float centerx <
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ui_type = "drag";
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ui_min = -100.0;
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ui_max = 100.0;
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ui_step = 0.1;
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ui_category = "Geom Curvature";
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ui_label = "Image Center X";
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> = 0.00;
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uniform float centery <
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ui_type = "drag";
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ui_min = -100.0;
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ui_max = 100.0;
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ui_step = 0.1;
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ui_category = "Geom Curvature";
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ui_label = "Image Center Y";
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> = 0.00;
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// Macros.
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#define FIX(c) max(abs(c), 1e-5);
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// aspect ratio
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#define aspect (geom_invert_aspect==true?float2(ViewportHeight/ViewportWidth,1.0):float2(1.0,ViewportHeight/ViewportWidth))
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float intersect(float2 xy, float2 sinangle, float2 cosangle)
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{
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float A = dot(xy,xy) + geom_d*geom_d;
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float B, C;
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B = 2.0*(geom_R*(dot(xy,sinangle) - geom_d*cosangle.x*cosangle.y) - geom_d*geom_d);
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C = geom_d*geom_d + 2.0*geom_R*geom_d*cosangle.x*cosangle.y;
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return (-B-sqrt(B*B - 4.0*A*C))/(2.0*A);
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}
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float2 bkwtrans(float2 xy, float2 sinangle, float2 cosangle)
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{
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float c = intersect(xy, sinangle, cosangle);
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float2 point = (c.xx*xy + geom_R.xx*sinangle) / geom_R.xx;
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float2 poc = point/cosangle;
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float2 tang = sinangle/cosangle;
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float A = dot(tang, tang) + 1.0;
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float B = -2.0*dot(poc, tang);
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float C = dot(poc, poc) - 1.0;
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float a = (-B + sqrt(B*B - 4.0*A*C)) / (2.0*A);
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float2 uv = (point - a*sinangle) / cosangle;
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float r = FIX(geom_R*acos(a));
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return uv*r/sin(r/geom_R);
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}
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float2 fwtrans(float2 uv, float2 sinangle, float2 cosangle)
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{
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float r = FIX(sqrt(dot(uv, uv)));
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uv *= sin(r/geom_R)/r;
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float x = 1.0 - cos(r/geom_R);
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float D;
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D = geom_d/geom_R + x*cosangle.x*cosangle.y + dot(uv,sinangle);
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return geom_d*(uv*cosangle - x*sinangle)/D;
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}
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float3 maxscale(float2 sinangle, float2 cosangle)
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{
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float2 c = bkwtrans(-geom_R * sinangle / (1.0 + geom_R/geom_d*cosangle.x*cosangle.y), sinangle, cosangle);
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float2 a = 0.5.xx*aspect;
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float2 lo = float2(fwtrans(float2(-a.x, c.y), sinangle, cosangle).x,
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fwtrans(float2( c.x, -a.y), sinangle, cosangle).y)/aspect;
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float2 hi = float2(fwtrans(float2(+a.x, c.y), sinangle, cosangle).x,
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fwtrans(float2( c.x, +a.y), sinangle, cosangle).y)/aspect;
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return float3((hi+lo)*aspect*0.5,max(hi.x-lo.x, hi.y-lo.y));
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}
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float2 transform(float2 coord, float2 sinangle, float2 cosangle, float3 stretch)
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{
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coord = (coord - 0.5.xx)*aspect*stretch.z + stretch.xy;
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return (bkwtrans(coord, sinangle, cosangle) /
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float2(geom_overscan_x / 100.0, geom_overscan_y / 100.0)/aspect + 0.5.xx);
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}
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float corner(float2 coord)
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{
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coord = min(coord, 1.0.xx - coord) * aspect;
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float2 cdist = geom_cornersize.xx;
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coord = (cdist - min(coord, cdist));
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float dist = sqrt(dot(coord, coord));
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return clamp((cdist.x - dist)*geom_cornersmooth, 0.0, 1.0);
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}
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float fwidth(float value)
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{
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return abs(ddx(value)) + abs(ddy(value));
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}
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#endif // GEOM_PARAMS_H
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