v4k-git-backup/demos/art/shadertoys/XsVSzW.fs

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2023-08-10 14:30:56 +00:00
//
void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
float time=iGlobalTime*1.0;
vec2 uv = (fragCoord.xy / iResolution.xx-0.5)*8.0;
vec2 uv0=uv;
float i0=1.0;
float i1=1.0;
float i2=1.0;
float i4=0.0;
for(int s=0;s<7;s++)
{
vec2 r;
r=vec2(cos(uv.y*i0-i4+time/i1),sin(uv.x*i0-i4+time/i1))/i2;
r+=vec2(-r.y,r.x)*0.3;
uv.xy+=r;
i0*=1.93;
i1*=1.15;
i2*=1.7;
i4+=0.05+0.1*time*i1;
}
float r=sin(uv.x-time)*0.5+0.5;
float b=sin(uv.y+time)*0.5+0.5;
float g=sin((uv.x+uv.y+sin(time*0.5))*0.5)*0.5+0.5;
fragColor = vec4(r,g,b,1.0);
}