generative/app/assets/shaders/white-noise.frag
Joshua Seigler 0e271449a6 Add noise
2019-11-11 13:50:47 -05:00

17 lines
299 B
GLSL

precision mediump float;
uniform vec2 u_resolution;
float random (vec2 st) {
return fract(sin(dot(st.xy,
vec2(12.9898,78.233)))*
43758.5453123);
}
void main() {
vec2 st = gl_FragCoord.xy/u_resolution.xy;
float rnd = random( st );
gl_FragColor = vec4(vec3(rnd),0.05);
}