ShaderToy.h

//import <GLUP/portable_fragment_shader.h>
 
uniform float iTime;
uniform float iFrame;
uniform vec4  iDate;
const vec3 iResolution=vec3(1024.0, 1024.0, 1.0);
const vec4 iMouse=vec4(0.0, 0.0, 0.0, 0.0);
uniform sampler2D iChannel0;
uniform sampler2D iChannel1;
uniform sampler2D iChannel2;
uniform sampler2D iChannel3;
 
void mainImage(out vec4 fragColor, in vec2 fragCoord);
 
void main(void) {
    mainImage(glup_FragColor, 1024.0*tex_coord.xy);
}