16 lines
520 B
GLSL
16 lines
520 B
GLSL
// [ref] https://rastergrid.com/blog/2010/09/efficient-gaussian-blur-with-linear-sampling/
|
|
|
|
uniform float intensity; /// set:4
|
|
|
|
void mainImage( out vec4 fragColor, in vec2 fragCoord ) {
|
|
vec2 uv = fragCoord.xy / iResolution.xy;
|
|
|
|
vec4 base = texture(iChannel0, uv), color = vec4(0.0);
|
|
vec2 offset = vec2(intensity,0) / iResolution;
|
|
color += base * 0.30;
|
|
color += texture(iChannel0, uv + offset) * 0.35;
|
|
color += texture(iChannel0, uv - offset) * 0.35;
|
|
|
|
fragColor = vec4( color.rgb, base.a );
|
|
}
|