tomaes

// fragment shader one-liners
// note: some might break for timing reasons (iDate.a/iDate.w) and some for compatibility reasons ("f+=" on a Mac, f.e.)
// 
// void mainImage( out vec4 f, vec2 p )
// and then...

// "flames (red)"
{f=vec4(p.x/p.y*mod(sin(p.x-iDate.a),.001*length(p-.9)),.2,.5,1.0);}

// "rain (small)"