Duckstation/data/resources/shaders/dolphinfx/crt/ZFAST-CRT-COMPOSITE.glsl
Hyllian 2a90a88055
Add crt-consumer and crt-cyclon. Update others. (#3223)
- Add crt-consumer.glsl;
- Add crt-cyclon.fx and its bezel.png texture;
- Fix crt-newpixie.fx Frame adjust to game's aspect ratio;
- Update others shaders to the new functions to get uniform values.
2024-06-16 00:02:30 +10:00

181 lines
4.4 KiB
GLSL

// zfast_crt - A very simple CRT shader.
// Copyright (C) 2017 Greg Hogan (SoltanGris42)
// edited by metallic 77.
// ported to slang by gregoricavichioli & hunterk.
// ported to dolphinfx by Hyllian.
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 of the License, or (at your option)
// any later version.
/*
[configuration]
[OptionRangeFloat]
GUIName = Curvature
OptionName = Curvature
MinValue = 0.0
MaxValue = 1.0
StepAmount = 1.0
DefaultValue = 1.0
[OptionRangeFloat]
GUIName = Convergence X-Axis
OptionName = blurx
MinValue = -1.0
MaxValue = 2.0
StepAmount = 0.05
DefaultValue = 0.85
[OptionRangeFloat]
GUIName = Convergence Y-Axis
OptionName = blury
MinValue = -1.0
MaxValue = 1.0
StepAmount = 0.05
DefaultValue = -0.10
[OptionRangeFloat]
GUIName = Scanline Amount (Low)
OptionName = HIGHSCANAMOUNT1
MinValue = 0.0
MaxValue = 1.0
StepAmount = 0.05
DefaultValue = 0.4
[OptionRangeFloat]
GUIName = Scanline Amount (High)
OptionName = HIGHSCANAMOUNT2
MinValue = 0.0
MaxValue = 1.0
StepAmount = 0.05
DefaultValue = 0.3
[OptionRangeFloat]
GUIName = Mask Type
OptionName = TYPE
MinValue = 0.0
MaxValue = 1.0
StepAmount = 1.0
DefaultValue = 0.0
[OptionRangeFloat]
GUIName = Mask Effect Amount
OptionName = MASK_DARK
MinValue = 0.0
MaxValue = 1.0
StepAmount = 0.05
DefaultValue = 0.3
[OptionRangeFloat]
GUIName = Mask/Scanline Fade
OptionName = MASK_FADE
MinValue = 0.0
MaxValue = 1.0
StepAmount = 0.05
DefaultValue = 0.7
[OptionRangeFloat]
GUIName = Saturation
OptionName = sat
MinValue = 0.0
MaxValue = 3.0
StepAmount = 0.05
DefaultValue = 1.0
[OptionRangeFloat]
GUIName = Flicker
OptionName = FLICK
MinValue = 0.0
MaxValue = 50.0
StepAmount = 1.0
DefaultValue = 10.0
[/configuration]
*/
#define pi 3.14159
#define blur_y GetOption(blury)/(SourceSize.y*2.0)
#define blur_x GetOption(blurx)/(SourceSize.x*2.0)
#define iTimer (float(GetTime())*2.0)
#define flicker GetOption(FLICK)/1000.0
// Distortion of scanlines, and end of screen alpha.
vec2 Warp(vec2 pos)
{
pos = pos*2.0-1.0;
pos *= vec2(1.0 + (pos.y*pos.y)*0.03, 1.0 + (pos.x*pos.x)*0.05);
return pos*0.5 + 0.5;
}
void main()
{
vec2 vTexCoord = GetCoordinates();
vec2 texSize = 1.0 / GetInvNativePixelSize();
vec4 SourceSize = vec4(texSize, 1.0 / texSize);
float maskFade = 0.3333*GetOption(MASK_FADE);
float omega = 2.0*pi*SourceSize.y;
vec2 pos,corn;
if (GetOption(Curvature) == 1.0)
{
pos = Warp(vTexCoord.xy);
corn = min(pos,vec2(1.0)-pos); // This is used to mask the rounded
corn.x = 0.00001/corn.x; // corners later on
}
else pos = vTexCoord;
float OGL2Pos = pos.y*SourceSize.y;
float cent = floor(OGL2Pos)+0.5;
float ycoord = cent*SourceSize.w;
ycoord = mix(pos.y,ycoord,0.6);
pos = vec2(pos.x,ycoord);
vec3 sample1 = sin(iTimer)*flicker + SampleLocation(vec2(pos.x + blur_x, pos.y - blur_y)).rgb;
vec3 sample2 = 0.5*SampleLocation(pos).rgb;
vec3 sample3 = sin(iTimer)*flicker + SampleLocation(vec2(pos.x - blur_x, pos.y + blur_y)).rgb;
vec3 colour = vec3 (sample1.r*0.5 + sample2.r,
sample1.g*0.25 + sample2.g + sample3.g*0.25,
sample2.b + sample3.b*0.5);
vec3 interl = colour;
vec3 lumweight=vec3(0.22,0.71,0.07);
float lumsat = dot(colour,lumweight);
vec3 graycolour = vec3(lumsat);
colour = vec3(mix(graycolour,colour.rgb,sat));
float SCANAMOUNT = mix(GetOption(HIGHSCANAMOUNT1),GetOption(HIGHSCANAMOUNT2),max(max(colour.r,colour.g),colour.b));
if (SourceSize.y > 400.0) {
colour ;
}
else {
colour *= SCANAMOUNT * sin(fract(OGL2Pos)*3.14159)+1.0-SCANAMOUNT;
colour *= SCANAMOUNT * sin(fract(1.0-OGL2Pos)*3.14159)+1.0-SCANAMOUNT;
colour *= SCANAMOUNT * sin(fract(1.0+OGL2Pos)*3.14159)+1.0-SCANAMOUNT;
}
float steps; if (GetOption(TYPE) == 0.0) steps = 0.5; else steps = 0.3333;
float whichmask = fract(vTexCoord.x*GetWindowSize().x*steps);
float mask = 1.0 + float(whichmask < steps) * (-GetOption(MASK_DARK));
colour.rgb = mix(mask*colour, colour, dot(colour.rgb,vec3(maskFade)));
if (GetOption(Curvature) == 1.0 && corn.y < corn.x || GetOption(Curvature) == 1.0 && corn.x < 0.00001 )
colour = vec3(0.0);
SetOutput(vec4(colour.rgb, 1.0));
}