[Bf-cycles] No Caustics Feature

Brecht Van Lommel brechtvanlommel at pandora.be
Wed Jan 16 13:45:13 CET 2013

On Wed, Jan 16, 2013 at 11:06 AM, Carsten Wartmann <cw at blenderbuch.de> wrote:
> Am 15.01.2013 17:07, schrieb Brecht Van Lommel:
> I still wonder what happened in the actual trunk, there is is difference
> in rendering, I could *not* produce noise/FF according Sebastians tip!
> So here are the images:
> Blender 2.65a Linux, 64bit, CUDA (NVIDIA gtx460)
> http://www.pasteall.org/pic/43732
> Blender Trunk (Today) Linux, 64bit, CUDA (NVIDIA gtx460)
> http://www.pasteall.org/pic/43733
> The last image looks like using Sebastians tip in 2.65a... But as you
> can see there is no node setup.
> No Caustic Filtering in both cases.

I think this is the lamp multiple importance sampling that you see.
I'm guessing the reflection of the sunlight on the glossy floor was
quite noisy without it. Due to the camera position this reflection is
not directly visible, only indirectly through bounces on the diffuse


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