You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
22 lines
793 B
GLSL
22 lines
793 B
GLSL
#version 120
|
|
|
|
uniform sampler2D DiffuseSampler;
|
|
|
|
varying vec2 texCoord;
|
|
varying vec2 oneTexel;
|
|
|
|
void main(){
|
|
vec4 center = texture2D(DiffuseSampler, texCoord);
|
|
vec4 up = texture2D(DiffuseSampler, texCoord + vec2( 0.0, -oneTexel.y));
|
|
vec4 down = texture2D(DiffuseSampler, texCoord + vec2( oneTexel.x, 0.0));
|
|
vec4 left = texture2D(DiffuseSampler, texCoord + vec2(-oneTexel.x, 0.0));
|
|
vec4 right = texture2D(DiffuseSampler, texCoord + vec2( 0.0, oneTexel.y));
|
|
vec4 uDiff = center - up;
|
|
vec4 dDiff = center - down;
|
|
vec4 lDiff = center - left;
|
|
vec4 rDiff = center - right;
|
|
vec4 sum = uDiff + dDiff + lDiff + rDiff;
|
|
vec3 clamped = clamp(center.rgb - sum.rgb, 0.0, 1.0);
|
|
gl_FragColor = vec4(clamped, center.a);
|
|
}
|