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BlockDissolve
runnable transition
GLSL transition function. Stronghold supplies two demo textures and progress/time uniforms.
Code
// Author: nwoeanhinnogaehr
// License: MIT
// Ported from https://gist.github.com/nwoeanhinnogaehr/b93818de23d4511fde10
uniform float blocksize; // = 0.02
float rand(vec2 co) {
return fract(sin(dot(co, vec2(12.9898, 78.233))) * 43758.5453);
}
vec4 transition(vec2 uv) {
return mix(getFromColor(uv), getToColor(uv), step(rand(floor(uv / blocksize)), progress));
}