mirror of
https://github.com/patriciogonzalezvivo/thebookofshaders
synced 2024-11-03 23:15:23 +00:00
25 lines
468 B
GLSL
25 lines
468 B
GLSL
// Author @patriciogv - 2015
|
|
// http://patriciogonzalezvivo.com
|
|
|
|
#ifdef GL_ES
|
|
precision mediump float;
|
|
#endif
|
|
|
|
uniform sampler2D u_tex0;
|
|
uniform sampler2D u_tex1;
|
|
|
|
uniform float u_time;
|
|
uniform vec2 u_mouse;
|
|
uniform vec2 u_resolution;
|
|
|
|
void main (void) {
|
|
vec2 st = gl_FragCoord.xy/u_resolution.xy;
|
|
|
|
vec3 colorA = texture2D(u_tex0,st).rgb;
|
|
vec3 colorB = texture2D(u_tex1,st).rgb;
|
|
|
|
vec3 color = abs(colorA-colorB);
|
|
|
|
gl_FragColor = vec4(color,1.0);
|
|
}
|