aeon-199x/shaders/module/aberration.frag

11 lines
264 B
GLSL

vec2 caOffset = vec2(2 * pixelSize / viewWidth, 0);
vec3 aberrate() {
vec2 offset = caOffset * abs(cos(texcoord * 3.14));
float red = texture2D(gcolor, texcoord - offset).r;
float blue = texture2D(gcolor, texcoord + offset).b;
return vec3(red, 0, blue);
}