mirror of
https://github.com/Theaninova/TheaninovOS.git
synced 2025-12-12 11:36:20 +00:00
32 lines
1.2 KiB
GLSL
Executable File
32 lines
1.2 KiB
GLSL
Executable File
//---------------------------------------------------------------------------
|
|
// Fragment
|
|
//---------------------------------------------------------------------------
|
|
#version 420 core
|
|
//---------------------------------------------------------------------------
|
|
precision mediump float;
|
|
in vec2 pos; // screen position <-1,+1>
|
|
out vec4 gl_FragColor; // fragment output color
|
|
uniform sampler2D txr; // texture to blur
|
|
uniform float xs,ys; // texture resolution
|
|
uniform float r = 6.0; // blur radius
|
|
|
|
varying vec2 v_texcoord;
|
|
uniform sampler2D tex;
|
|
//---------------------------------------------------------------------------
|
|
void main()
|
|
{
|
|
float x,y,xx,yy,rr=r*r,dx,dy,w,w0;
|
|
w0=0.3780/pow(r,1.975);
|
|
vec2 p;
|
|
vec4 pixColor = texture2D(tex, v_texcoord);
|
|
for (dx=1.0/xs,x=-r,p.x=0.5+(pos.x*0.5)+(x*dx);x<=r;x++,p.x+=dx){ xx=x*x;
|
|
for (dy=1.0/ys,y=-r,p.y=0.5+(pos.y*0.5)+(y*dy);y<=r;y++,p.y+=dy){ yy=y*y;
|
|
if (xx+yy<=rr)
|
|
{
|
|
w=w0*exp((-xx-yy)/(2.0*rr));
|
|
pixColor+=texture2D(txr,p)*w;
|
|
}}}
|
|
gl_FragColor = pixColor;
|
|
}
|
|
//---------------------------------------------------------------------------
|