mirror of
https://github.com/italicsjenga/slang-shaders.git
synced 2024-11-30 03:11:31 +11:00
113 lines
3.5 KiB
Plaintext
113 lines
3.5 KiB
Plaintext
#version 450
|
|
|
|
layout(push_constant) uniform Push
|
|
{
|
|
vec4 SourceSize;
|
|
vec4 OriginalSize;
|
|
vec4 OutputSize;
|
|
uint FrameCount;
|
|
float AA_RESOLUTION_X;
|
|
float AA_RESOLUTION_Y;
|
|
} params;
|
|
|
|
#pragma parameter AA_RESOLUTION_X "AA Input Res X" 0.0 0.0 1920.0 1.0
|
|
#pragma parameter AA_RESOLUTION_Y "AA Input Res Y" 0.0 0.0 1920.0 1.0
|
|
|
|
layout(std140, set = 0, binding = 0) uniform UBO
|
|
{
|
|
mat4 MVP;
|
|
} global;
|
|
|
|
/*
|
|
Copyright (C) 2006 guest(r) - guest.r@gmail.com
|
|
|
|
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.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/*
|
|
The AdvancedAA shader is well used to:
|
|
- AA 2xscaled gfx. to its 4x absolute size,
|
|
- AA hi-res "screens" (640x480) to their 2x size or,
|
|
- AA gfx. back to it's original size (looks nice above 640x480, set scaling to 1.0)
|
|
*/
|
|
|
|
#define AA_RESOLUTION_X_DEF params.SourceSize.x
|
|
#define AA_RESOLUTION_Y_DEF params.SourceSize.y
|
|
vec3 dt = vec3(1,1,1);
|
|
|
|
#pragma stage vertex
|
|
layout(location = 0) in vec4 Position;
|
|
layout(location = 1) in vec2 TexCoord;
|
|
layout(location = 0) out vec2 vTexCoord;
|
|
layout(location = 1) out vec4 t1;
|
|
layout(location = 2) out vec4 t2;
|
|
layout(location = 3) out vec4 t3;
|
|
layout(location = 4) out vec4 t4;
|
|
|
|
void main()
|
|
{
|
|
gl_Position = global.MVP * Position;
|
|
vTexCoord = TexCoord;
|
|
vec2 ps = vec2(1.0/((params.AA_RESOLUTION_X == 0) ? AA_RESOLUTION_X_DEF : params.AA_RESOLUTION_X), 1.0/((params.AA_RESOLUTION_Y == 0) ? AA_RESOLUTION_Y_DEF : params.AA_RESOLUTION_Y));
|
|
float dx = ps.x*0.5;
|
|
float dy = ps.y*0.5;
|
|
|
|
t1.xy = vTexCoord + vec2(-dx, 0);
|
|
t2.xy = vTexCoord + vec2( dx, 0);
|
|
t3.xy = vTexCoord + vec2( 0,-dy);
|
|
t4.xy = vTexCoord + vec2( 0, dy);
|
|
t1.zw = vTexCoord + vec2(-dx,-dy);
|
|
t2.zw = vTexCoord + vec2(-dx, dy);
|
|
t3.zw = vTexCoord + vec2( dx,-dy);
|
|
t4.zw = vTexCoord + vec2( dx, dy);
|
|
}
|
|
|
|
#pragma stage fragment
|
|
layout(location = 0) in vec2 vTexCoord;
|
|
layout(location = 1) in vec4 t1;
|
|
layout(location = 2) in vec4 t2;
|
|
layout(location = 3) in vec4 t3;
|
|
layout(location = 4) in vec4 t4;
|
|
layout(location = 0) out vec4 FragColor;
|
|
layout(set = 0, binding = 2) uniform sampler2D Source;
|
|
|
|
void main()
|
|
{
|
|
vec3 c00 = texture(Source, t1.zw).xyz;
|
|
vec3 c10 = texture(Source, t3.xy).xyz;
|
|
vec3 c20 = texture(Source, t3.zw).xyz;
|
|
vec3 c01 = texture(Source, t1.xy).xyz;
|
|
vec3 c11 = texture(Source, vTexCoord).xyz;
|
|
vec3 c21 = texture(Source, t2.xy).xyz;
|
|
vec3 c02 = texture(Source, t2.zw).xyz;
|
|
vec3 c12 = texture(Source, t4.xy).xyz;
|
|
vec3 c22 = texture(Source, t4.zw).xyz;
|
|
|
|
float d1=dot(abs(c00-c22),dt)+0.0001;
|
|
float d2=dot(abs(c20-c02),dt)+0.0001;
|
|
float hl=dot(abs(c01-c21),dt)+0.0001;
|
|
float vl=dot(abs(c10-c12),dt)+0.0001;
|
|
|
|
float k1=0.5*(hl+vl);
|
|
float k2=0.5*(d1+d2);
|
|
|
|
vec3 t1=(hl*(c10+c12)+vl*(c01+c21)+k1*c11)/(2.5*(hl+vl));
|
|
vec3 t2=(d1*(c20+c02)+d2*(c00+c22)+k2*c11)/(2.5*(d1+d2));
|
|
|
|
k1=dot(abs(t1-c11),dt)+0.0001;
|
|
k2=dot(abs(t2-c11),dt)+0.0001;
|
|
|
|
FragColor = vec4((k1*t2+k2*t1)/(k1+k2),1);
|
|
} |