Raymarching Beginners' Thread
category: code [glöplog]
This a polar repetition with smoothness aka "Smooth Symmetric Polar Mod"
Made a Shadetoy with it https://shadertoy.com/view/NdS3Dh
Made a Shadetoy with it https://shadertoy.com/view/NdS3Dh
Code:
//SmoothSymmetricPolarMod aka smoothRot
//
//s repetitions
//m smoothness (0-1)
//c correction (0-1)
//d object displace from center
//
vec2 smoothRot(vec2 p,float s,float m,float c,float d){
s*=0.5;
float k=length(p);
float x=asin(sin(atan(p.x,p.y)*s)*(1.0-m))*k;
float ds=k*s;
float y=mix(ds,2.0*ds-sqrt(x*x+ds*ds),c);
return vec2(x/s,y/s-d);
}