This thread is awesome. And I really don't want to hijack it, but I'm having trouble with a scene full of caustics and felt this is the place somehow... The water is CoolColJ's Clear Water from MatDB, with sss disabled (gives funny colors with all newer versions of indigo, btw how did you fix that ...

Ahh it seems like only objects with the edge split modifier get exported?

Ok, I try hiding the blender camera object and then I was able to see some objects in the render exported out

But no sphere objects, or meshes, just plane and cubes etc.

added a bump map to the tiles and boy did that slow down the pool caustics!

OnoSendai wrote:Can you post the PIGS?

Well the Indigo file is empty, just the sky I think. The exporter doesn't put in any of the objects. So I guess I'll send you the blend file?

dakiru wrote:

CoolColJ wrote:Must be something in the scene I'm trying it with...

Hi, did you find the stumbling block? I am curious about what was making the problem

Still none the wiser

supplemental PDF showing a comparison between the differnet methods http://cgg.mff.cuni.cz/~jaroslav/papers/2011-sketch-vm/VertexMerging_SIGGRAPHAsia2011_supplemental.pdf And something else of interest? No one has put out a GPU accelerated BPT renderer out yet... should be able to now :) Combinatori...

lycium wrote:SPPM isn't unbiased (it's consistent though), and its order of convergence isn't as good as BDPT in most respects, reflections of caustics being an exception

That's why you combine the two together

The power of SPPM - from luxrender. Combine this with Bidirectional Path tracing and you have a winner....as shown in the above papers Both 15 min renders - SPPM, he underwater caustics and it's reflection in the sphere rendered within 1 min! And yes it is unbiased :wink: SPPM - filtering is off Wat...

Old sky system vs new simulated one I like the new one, it actually looks sunny! That's was my peeve with the original sky system, I could never get that real sun burnt look! CCJ_Athena_NEWsun2.jpg Original sky system, flat and bland looking.... Interestingly there is a bit of caustic at the front c...

Well I have found Stochastic progressive photon mapping, in Luxrender unmatched when it comes to difficult lighting, and refracted caustics. Even MLT can't match it, especially refracted caustics from the Sun! But it's slow to converge. But if you could combine Bidrectional Path tracing and SPPM the...

Thanks, that scene worked fine for me


Must be something in the scene I'm trying it with...

zeitmeister wrote:Latest versions everywhere?

Yes... stumps me

Benchies

http://blog.accelereyes.com/blog/2012/0 ... r-gtx-680/

So I have a simple scene, and I have some materials, sun/sky. When I hit render, Indigo renders nothing but white. There are no objects in the scene when it hits Indigo...

WTF am I doing wrong???