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Add sharper hermite filter option

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metallic77 2023-04-09 10:21:36 +03:00 • committed by GitHub
parent 5ed39804bc
commit 3318511ed2
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1 changed files with 18 additions and 2 deletions
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20
crt/shaders/hyllian/crt-hyllian-fast.slang
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@ -33,6 +33,7 @@ layout(push_constant) uniform Push
float OutputGamma;
float BRIGHTBOOST;
float SCANLINES;
float SHARPER;
} params;
// Parameter lines go here:
@ -53,7 +54,8 @@ layout(push_constant) uniform Push
#pragma parameter SCANLINES "SCANLINES STRENGTH" 0.72 0.0 1.0 0.02
#define SCANLINES params.SCANLINES
#pragma parameter SHARPER "SHARPER" 0.0 0.0 1.0 1.0
#define SHARPER params.SHARPER
layout(std140, set = 0, binding = 0) uniform UBO
@ -113,11 +115,25 @@ void main()
vec4 lobes = vec4(fp.x*fp.x*fp.x, fp.x*fp.x, fp.x, 1.0);
vec4 InvX = vec4(0.0);
// Horizontal cubic filter
if (SHARPER == 0.0) {
// Horizontal cubic filter - "Catrom"
InvX.x = dot(vec4( -0.5, 1.0, -0.5, 0.0), lobes);
InvX.y = dot(vec4( 1.5,-2.5, 0.0, 1.0), lobes);
InvX.z = dot(vec4( -1.5, 2.0, 0.5, 0.0), lobes);
InvX.w = dot(vec4( 0.5,-0.5, 0.0, 0.0), lobes);
}
else if (SHARPER == 1.0) {
// Swith to "Hermite" - Sharper, smoothed bilinear
InvX.x = dot(vec4( 0.0, 0.0, 0.0, 0.0), lobes);
InvX.y = dot(vec4( 2.0,-3.0, 0.0, 1.0), lobes);
InvX.z = dot(vec4( -2.0, 3.0, 0.0, 0.0), lobes);
InvX.w = dot(vec4( 0.0, 0.0, 0.0, 0.0), lobes);
}
vec3 color = InvX.x*c10.xyz;
color+= InvX.y*c11.xyz;