How to get caustics working in C4D ?

[FooZe]

Hi, How are you going with getting caustics?
I have tweaked your scene to get some going.
I think the main problem is light setup, you need a small emitter (or octane sun) so that light is as parallel as possible going through the glass, otherwise you just get light going everywhere and you don't get any light focusing in any patterns.

X014b.zip

(221.09 KiB) Downloaded 305 times

Thanks
Chris.

[Bolos]

Thank you Fooze !

I had a look at your tweaking but I don't have much caustics in there, and the glass shadow is pure black, it's a bit strange.

Anyway, I finally managed to get some by scaling way down my scene.

Thank you a lot guys !

[preciousillusion]

I'm using a sun and area lights, very confusing.

Here is the kind of setup I use so far, if someone is kind enough to look at it and tell me what I need to do in order to get some caustics, I'd be glad !

http://www.mediafire.com/download/5vvvb ... /X014b.c4d

Here ya go https://dl.dropboxusercontent.com/u/656 ... 4b_V02.c4d
I tweaked the scale of the scene and light to bring out the caustics