mirror of
https://github.com/RetroDECK/Duckstation.git
synced 2025-04-10 19:15:14 +00:00
239 lines
7.9 KiB
GLSL
239 lines
7.9 KiB
GLSL
/*===============================================================================*\
|
|
|######################## [Dolphin FX Suite 2.20] #######################|
|
|
|########################## By Asmodean ##########################|
|
|
|| ||
|
|
|| 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. ||
|
|
|| ||
|
|
|| This program is distributed in the hope that it will be useful, ||
|
|
|| but WITHOUT ANY WARRANTY; without even the implied warranty of ||
|
|
|| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ||
|
|
|| GNU General Public License for more details. (C)2015 ||
|
|
|| ||
|
|
|#################################################################################|
|
|
\*===============================================================================*/
|
|
|
|
// Sourced from https://raw.githubusercontent.com/Asmodean-/dolphin/89d640cd557189bb5f921fc219150c74c39bdc55/Data/Sys/Shaders/DolphinFX.glsl with modifications.
|
|
|
|
/*
|
|
[configuration]
|
|
|
|
[OptionRangeInteger]
|
|
GUIName = BloomType
|
|
OptionName = A_BLOOM_TYPE
|
|
MinValue = 0
|
|
MaxValue = 5
|
|
StepAmount = 1
|
|
DefaultValue = 0
|
|
|
|
[OptionRangeFloat]
|
|
GUIName = BloomStrength
|
|
OptionName = B_BLOOM_STRENGTH
|
|
MinValue = 0.000
|
|
MaxValue = 1.000
|
|
StepAmount = 0.001
|
|
DefaultValue = 0.220
|
|
|
|
[OptionRangeFloat]
|
|
GUIName = BlendStrength
|
|
OptionName = C_BLEND_STRENGTH
|
|
MinValue = 0.000
|
|
MaxValue = 1.200
|
|
StepAmount = 0.010
|
|
DefaultValue = 1.000
|
|
|
|
[OptionRangeFloat]
|
|
GUIName = BloomDefocus
|
|
OptionName = D_B_DEFOCUS
|
|
MinValue = 1.000
|
|
MaxValue = 4.000
|
|
StepAmount = 0.100
|
|
DefaultValue = 2.000
|
|
|
|
[OptionRangeFloat]
|
|
GUIName = BloomWidth
|
|
OptionName = D_BLOOM_WIDTH
|
|
MinValue = 1.000
|
|
MaxValue = 8.000
|
|
StepAmount = 0.100
|
|
DefaultValue = 3.200
|
|
|
|
[OptionRangeFloat]
|
|
GUIName = BloomReds
|
|
OptionName = E_BLOOM_REDS
|
|
MinValue = 0.000
|
|
MaxValue = 0.500
|
|
StepAmount = 0.001
|
|
DefaultValue = 0.020
|
|
|
|
[OptionRangeFloat]
|
|
GUIName = BloomGreens
|
|
OptionName = F_BLOOM_GREENS
|
|
MinValue = 0.000
|
|
MaxValue = 0.500
|
|
StepAmount = 0.001
|
|
DefaultValue = 0.010
|
|
|
|
[OptionRangeFloat]
|
|
GUIName = BloomBlues
|
|
OptionName = G_BLOOM_BLUES
|
|
MinValue = 0.000
|
|
MaxValue = 0.500
|
|
StepAmount = 0.001
|
|
DefaultValue = 0.010
|
|
|
|
[/configuration]
|
|
*/
|
|
|
|
//Average relative luminance
|
|
CONSTANT float3 lumCoeff = float3(0.2126729, 0.7151522, 0.0721750);
|
|
float AvgLuminance(float3 color)
|
|
{
|
|
return sqrt(
|
|
(color.x * color.x * lumCoeff.x) +
|
|
(color.y * color.y * lumCoeff.y) +
|
|
(color.z * color.z * lumCoeff.z));
|
|
}
|
|
|
|
float smootherstep(float a, float b, float x)
|
|
{
|
|
x = saturate((x - a) / (b - a));
|
|
return x*x*x*(x*(x * 6.0 - 15.0) + 10.0);
|
|
}
|
|
|
|
float3 BlendAddLight(float3 bloom, float3 blend)
|
|
{
|
|
return saturate(bloom + blend);
|
|
}
|
|
|
|
float3 BlendScreen(float3 bloom, float3 blend)
|
|
{
|
|
return (bloom + blend) - (bloom * blend);
|
|
}
|
|
|
|
float3 BlendAddGlow(float3 bloom, float3 blend)
|
|
{
|
|
float glow = smootherstep(0.0, 1.0, AvgLuminance(bloom));
|
|
return lerp(saturate(bloom + blend),
|
|
(blend + blend) - (blend * blend), glow);
|
|
}
|
|
|
|
float3 BlendGlow(float3 bloom, float3 blend)
|
|
{
|
|
float glow = smootherstep(0.0, 1.0, AvgLuminance(bloom));
|
|
return lerp((bloom + blend) - (bloom * blend),
|
|
(blend + blend) - (blend * blend), glow);
|
|
}
|
|
|
|
float3 BlendLuma(float3 bloom, float3 blend)
|
|
{
|
|
float lumavg = smootherstep(0.0, 1.0, AvgLuminance(bloom + blend));
|
|
return lerp((bloom * blend), (1.0 -
|
|
((1.0 - bloom) * (1.0 - blend))), lumavg);
|
|
}
|
|
|
|
float3 BlendOverlay(float3 bloom, float3 blend)
|
|
{
|
|
float3 overlay = step(0.5, bloom);
|
|
return lerp((bloom * blend * 2.0), (1.0 - (2.0 *
|
|
(1.0 - bloom) * (1.0 - blend))), overlay);
|
|
}
|
|
|
|
float3 BloomCorrection(float3 color)
|
|
{
|
|
float3 bloom = color;
|
|
|
|
bloom.r = 2.0 / 3.0 * (1.0 - (bloom.r * bloom.r));
|
|
bloom.g = 2.0 / 3.0 * (1.0 - (bloom.g * bloom.g));
|
|
bloom.b = 2.0 / 3.0 * (1.0 - (bloom.b * bloom.b));
|
|
|
|
bloom.r = saturate(color.r + GetOption(E_BLOOM_REDS) * bloom.r);
|
|
bloom.g = saturate(color.g + GetOption(F_BLOOM_GREENS) * bloom.g);
|
|
bloom.b = saturate(color.b + GetOption(G_BLOOM_BLUES) * bloom.b);
|
|
|
|
color = saturate(bloom);
|
|
|
|
return color;
|
|
}
|
|
|
|
float4 PyramidFilter(float2 texcoord, float2 width)
|
|
{
|
|
float4 X = SampleLocation(texcoord + float2(0.5, 0.5) * width);
|
|
float4 Y = SampleLocation(texcoord + float2(-0.5, 0.5) * width);
|
|
float4 Z = SampleLocation(texcoord + float2(0.5, -0.5) * width);
|
|
float4 W = SampleLocation(texcoord + float2(-0.5, -0.5) * width);
|
|
|
|
return (X + Y + Z + W) / 4.0;
|
|
}
|
|
|
|
float3 Blend(float3 bloom, float3 blend)
|
|
{
|
|
if (GetOption(A_BLOOM_TYPE) == 0) { return BlendGlow(bloom, blend); }
|
|
else if (GetOption(A_BLOOM_TYPE) == 1) { return BlendAddGlow(bloom, blend); }
|
|
else if (GetOption(A_BLOOM_TYPE) == 2) { return BlendAddLight(bloom, blend); }
|
|
else if (GetOption(A_BLOOM_TYPE) == 3) { return BlendScreen(bloom, blend); }
|
|
else if (GetOption(A_BLOOM_TYPE) == 4) { return BlendLuma(bloom, blend); }
|
|
else /*if (GetOption(A_BLOOM_TYPE) == 5) */ { return BlendOverlay(bloom, blend); }
|
|
}
|
|
|
|
void main()
|
|
{
|
|
float4 color = Sample();
|
|
float2 texcoord = GetCoordinates();
|
|
float2 pixelSize = GetInvResolution();
|
|
|
|
float anflare = 4.0;
|
|
|
|
float2 defocus = float2(GetOption(D_B_DEFOCUS), GetOption(D_B_DEFOCUS));
|
|
float4 bloom = PyramidFilter(texcoord, pixelSize * defocus);
|
|
|
|
float2 dx = float2(pixelSize.x * GetOption(D_BLOOM_WIDTH), 0.0);
|
|
float2 dy = float2(0.0, pixelSize.y * GetOption(D_BLOOM_WIDTH));
|
|
|
|
float2 mdx = mul(dx, 2.0);
|
|
float2 mdy = mul(dy, 2.0);
|
|
|
|
float4 blend = bloom * 0.22520613262190495;
|
|
|
|
blend += 0.002589001911021066 * SampleLocation(texcoord - mdx + mdy);
|
|
blend += 0.010778807494659370 * SampleLocation(texcoord - dx + mdy);
|
|
blend += 0.024146616900339800 * SampleLocation(texcoord + mdy);
|
|
blend += 0.010778807494659370 * SampleLocation(texcoord + dx + mdy);
|
|
blend += 0.002589001911021066 * SampleLocation(texcoord + mdx + mdy);
|
|
|
|
blend += 0.010778807494659370 * SampleLocation(texcoord - mdx + dy);
|
|
blend += 0.044875475183061630 * SampleLocation(texcoord - dx + dy);
|
|
blend += 0.100529757860782610 * SampleLocation(texcoord + dy);
|
|
blend += 0.044875475183061630 * SampleLocation(texcoord + dx + dy);
|
|
blend += 0.010778807494659370 * SampleLocation(texcoord + mdx + dy);
|
|
|
|
blend += 0.024146616900339800 * SampleLocation(texcoord - mdx);
|
|
blend += 0.100529757860782610 * SampleLocation(texcoord - dx);
|
|
blend += 0.100529757860782610 * SampleLocation(texcoord + dx);
|
|
blend += 0.024146616900339800 * SampleLocation(texcoord + mdx);
|
|
|
|
blend += 0.010778807494659370 * SampleLocation(texcoord - mdx - dy);
|
|
blend += 0.044875475183061630 * SampleLocation(texcoord - dx - dy);
|
|
blend += 0.100529757860782610 * SampleLocation(texcoord - dy);
|
|
blend += 0.044875475183061630 * SampleLocation(texcoord + dx - dy);
|
|
blend += 0.010778807494659370 * SampleLocation(texcoord + mdx - dy);
|
|
|
|
blend += 0.002589001911021066 * SampleLocation(texcoord - mdx - mdy);
|
|
blend += 0.010778807494659370 * SampleLocation(texcoord - dx - mdy);
|
|
blend += 0.024146616900339800 * SampleLocation(texcoord - mdy);
|
|
blend += 0.010778807494659370 * SampleLocation(texcoord + dx - mdy);
|
|
blend += 0.002589001911021066 * SampleLocation(texcoord + mdx - mdy);
|
|
blend = lerp(color, blend, GetOption(C_BLEND_STRENGTH));
|
|
|
|
bloom.xyz = Blend(bloom.xyz, blend.xyz);
|
|
bloom.xyz = BloomCorrection(bloom.xyz);
|
|
|
|
color.a = AvgLuminance(color.xyz);
|
|
bloom.a = AvgLuminance(bloom.xyz);
|
|
bloom.a *= anflare;
|
|
|
|
SetOutput(lerp(color, bloom, GetOption(B_BLOOM_STRENGTH)));
|
|
}
|