Disco Ball - How to ?

[Morbid Angel]

indeed. I thought that vray just needs insance amount of samples to be able to trace the caustics. Since it can trace qmc caustics on simple tests. So I tried maxwell...but no success.

[RErender]

Are disco balls glossy or do they just look that way from the anisotropy caused by the separate mirrors?

[Morbid Angel]

I think discoballs are just a bunch of mirrors. So I dont think they are glossy. Or maybe some are some arent. Go figure....

[Morbid Angel]

Here is my test scene with discoball...its setup for maxwell but no biggy it can be translated to vray.

http://www3.telus.net/public/vinnik8...coball_mxs.rar

[flipside]

Oh wait, do you mean blurry with glossy or absolutely not blurry? Mine is not blurry.

My discoball looks wrong because it is modeled unrealistic, it is simply a geosphere.

[Da_elf]

a disco ball would be a normal sphere. they are made of smalll square mirrors pasted onto the surface. a geosphere is more triangular faces. so basically a normal sphere with smoothing turned off would work well

[flipside]

No, because a normal sphere its faces are not all the same size. You have to model it yourself to get a real discoball.

[vlado]

You can do this with QMC GI or PPT too, but you need a spot or directional light (not an area light) and at least slightly glossy reflective material for the ball. Also, reflective caustics must be enabled. The render times will be quite high though... just trying an example now.

Best regards,
Vlado