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thebookofshaders/16/inv.frag

22 lines
385 B
GLSL

// Author @patriciogv - 2015
// http://patriciogonzalezvivo.com
#ifdef GL_ES
precision mediump float;
#endif
uniform sampler2D u_tex0;
uniform float u_time;
uniform vec2 u_mouse;
uniform vec2 u_resolution;
void main (void) {
vec2 st = gl_FragCoord.xy/u_resolution.xy;
vec3 color = texture2D(u_tex0,st).rgb;
// color = 1.0-color;
gl_FragColor = vec4(color,1.0);
}