I have a scanner orbiting around a sphere. The scanner shoots a ray in form of a pyramid at the sphere and where the ray hits the sphere I want to paint a stroke on the object. I would need a shader solution since I want to create a mask for composinting and I might have bump and displ later on.
Here is an animation that basically does what I want I just need the c4d version of it (minnute 1:37 -1:50)
I tried the proximal shader with the tracer but the proximal shader does not give me sharp edges.
Second was a shader plugin but it renders very slow in high quality:
Do you guys know of a way painting a dynamic stroke like this in a c4d shader?