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Add Anti-Ringing to spline16 and spline36

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- Add a very good anti-ringing code to spline16 and spline36 shaders;
- It works best with spline16.
- it's ON by default and can be disabled through realtime shader parameter.
This commit is contained in:
Hyllian 2022-08-08 09:25:04 -03:00
parent cfe2bc9ecf
commit 8766bbc0bf
4 changed files with 65 additions and 0 deletions
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15
cubic/shaders/spline16-x.slang
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@ -39,8 +39,13 @@ layout(push_constant) uniform Push
vec4 OriginalSize;
vec4 OutputSize;
uint FrameCount;
float S16_ANTI_RINGING;
} params;
#pragma parameter S16_ANTI_RINGING "Spline16 Anti-Ringing [ OFF | ON ]" 1.0 0.0 1.0 1.0
#define S16_ANTI_RINGING params.S16_ANTI_RINGING
layout(std140, set = 0, binding = 0) uniform UBO
{
mat4 MVP;
@ -121,5 +126,15 @@ void main()
vec3 color = mat4x3( C0, C1, C2, C3 ) * w;
// Anti-ringing
if (S16_ANTI_RINGING == 1.0)
{
vec3 aux = color;
vec3 min_sample = min(min(C0, C1), min(C2, C3));
vec3 max_sample = max(max(C0, C1), max(C2, C3));
color = clamp(color, min_sample, max_sample);
color = mix(aux, color, step(0.0, (C0-C1)*(C2-C3)));
}
FragColor = vec4(color, 1.0);
}

15
cubic/shaders/spline16-y.slang
View file

@ -39,8 +39,13 @@ layout(push_constant) uniform Push
vec4 OriginalSize;
vec4 OutputSize;
uint FrameCount;
float S16_ANTI_RINGING;
} params;
#pragma parameter S16_ANTI_RINGING "Spline16 Anti-Ringing [ OFF | ON ]" 1.0 0.0 1.0 1.0
#define S16_ANTI_RINGING params.S16_ANTI_RINGING
layout(std140, set = 0, binding = 0) uniform UBO
{
mat4 MVP;
@ -121,5 +126,15 @@ void main()
vec3 color = mat4x3( C0, C1, C2, C3 ) * w;
// Anti-ringing
if (S16_ANTI_RINGING == 1.0)
{
vec3 aux = color;
vec3 min_sample = min(min(C0, C1), min(C2, C3));
vec3 max_sample = max(max(C0, C1), max(C2, C3));
color = clamp(color, min_sample, max_sample);
color = mix(aux, color, step(0.0, (C0-C1)*(C2-C3)));
}
FragColor = vec4(color, 1.0);
}

17
cubic/shaders/spline36-x.slang
View file

@ -39,8 +39,15 @@ layout(push_constant) uniform Push
vec4 OriginalSize;
vec4 OutputSize;
uint FrameCount;
float S36_ANTI_RINGING;
} params;
#pragma parameter S36_ANTI_RINGING "Spline36 Anti-Ringing [ OFF | ON ]" 1.0 0.0 1.0 1.0
#define S36_ANTI_RINGING params.S36_ANTI_RINGING
#define AR_STRENGTH 0.8
layout(std140, set = 0, binding = 0) uniform UBO
{
mat4 MVP;
@ -131,5 +138,15 @@ void main()
vec3 color = mat3( C0, C1, C2 ) * w1 + mat3( C3, C4, C5) * w2;
// Anti-ringing
if (S36_ANTI_RINGING == 1.0)
{
vec3 aux = color;
vec3 min_sample = min(min(C1, C2), min(C3, C4));
vec3 max_sample = max(max(C1, C2), max(C3, C4));
color = clamp(color, min_sample, max_sample);
color = mix(aux, color, AR_STRENGTH*step(0.0, (C1-C2)*(C3-C4)));
}
FragColor = vec4(color, 1.0);
}

18
cubic/shaders/spline36-y.slang
View file

@ -39,8 +39,15 @@ layout(push_constant) uniform Push
vec4 OriginalSize;
vec4 OutputSize;
uint FrameCount;
float S36_ANTI_RINGING;
} params;
#pragma parameter S36_ANTI_RINGING "Spline36 Anti-Ringing [ OFF | ON ]" 1.0 0.0 1.0 1.0
#define S36_ANTI_RINGING params.S36_ANTI_RINGING
#define AR_STRENGTH 0.8
layout(std140, set = 0, binding = 0) uniform UBO
{
mat4 MVP;
@ -131,5 +138,16 @@ void main()
vec3 color = mat3( C0, C1, C2 ) * w1 + mat3( C3, C4, C5) * w2;
// Anti-ringing
if (S36_ANTI_RINGING == 1.0)
{
vec3 aux = color;
vec3 min_sample = min(min(C1, C2), min(C3, C4));
vec3 max_sample = max(max(C1, C2), max(C3, C4));
color = clamp(color, min_sample, max_sample);
color = mix(aux, color, AR_STRENGTH*step(0.0, (C1-C2)*(C3-C4)));
}
FragColor = vec4(color, 1.0);
}