ompf2.com

I'm still working on opensource B2 alternative, almost ready to provide sources. May be someone already did this? :D Here some example render of abouttime scene: YD26DXuFI4o Currently it uses glsl because CUDA can't run on AMD, and Nvidia do not support OpenCL 2.0, so bindless textures is the only w...

Very nice, small and understandable source)

if I understood correctly they focus on photo-realistic rendering. They split render in two parts, photo-realistic render is other part http://embree.github.io/renderer.html http://embree.github.io/ do only ray traversal and basic shading. And how static nodes fragmented with dynamic ones? I assume...

For CPU render try http://embree.github.io/
How you organize your octree? It's single OCL buffer?

papaboo wrote:If one of your rays do something dumb, then they can crash your entire driver, making debugging a nightmare

Ha-ha, I face it many times =) I even fail to make Intel OpenCL debugging, breakpoints is set, but just do not works.

Try this lessons: http://www.scratchapixel.com/lessons/3d ... adiometry/

Also try Intel ispc or OpenCL as alternative to raw SSE.

Thanks again for the link, I've found why http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ only 2..2.5x slower: RayGen.cpp->RayGen::randomReflection simulates numSamples diffuse rays from same origin, not real diffuse path segments. I compare it in similar condition - ...

Dietger , no, I didn't seen this, thanks. May be it's because of shading, GPU-Z shows 98% CPU load and 10% memory controller load, also it's scene dependent, and even point of view dependent. Event 2.5x already reason to think, we do not need much precise for secondary diffuse bounce, so we can acc...

I've notice that secondary diffuse bounce + sunray around ~5 times slower than primary diffuse hit + sunray (complex scenes, 1xGTX680). Probably because of rays coherency and cache. Is it normal situation or I do something wrong? If it's true question what to do with it... I have in mind use SVO or ...

https://www.shadertoy.com/view/ldsGWB
Here example of complex "not triangle" intersection test.