blob: 5cbab606bdcd186b809b26a83647fe893677604f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
#extension GL_ARB_texture_rectangle : enable
uniform sampler2DRect MyTex;
uniform float Sl,Sr,St,Sb; // shade size
varying vec2 pos;
void main (void)
{
vec4 color = texture2DRect(MyTex, gl_TexCoord[0].st);
color.a *=min(1.,pos.x/Sl);
color.a *=min(1.,(1.-pos.x)/Sr);
color.a *=min(1.,pos.y/St);
color.a *=min(1.,(1.-pos.y)/Sb);
gl_FragColor = color;
}
|