LuxCoreRender Forums

Ah ok, the default is 0, I assumed it to be 0.05 because of Dade's example. You are correct, it is a bug, both the code for "path.hybridbackforward.partition" and "path.hybridbackforward.glossinessthreshold" default values is wrong (https://github.com/LuxCoreRender/LuxCore/blob/...

However, when FB = 1024 MB everything works. Should this be expected realizing that the scene may need a certain minimum amount of memory to run? An internal driver error is not expected (i.e. that is an NVIDIA bug) however the scenes ramp up memory usage from lower (LuxBall scene) to the higher (H...

This is a good question. Looks like BiDir behavior. BiDir does not mirror everything, e.g. scattered laser beams, it looks like BiDir only renders with max depth of one in these cases. Is there any good reason? You can not connect a specular path vertex with the eye (or the light), it is just not p...

I've tried it with a bathroom scene (there is a glass shower and a mirror), which looks good. However, all my emissive objects are black. Is it intended or a bug? After disabling Hybrid Back/Foward path tracing, these objects are emissive again. I'm using OCL and partition = 0 (CPU only do light pa...

Sharlybg wrote: ↑Tue Jun 25, 2019 11:19 am in the hybrid render caustics are not reflected on the cube. is this is the normal behaviour ?

It is the definition of SDS path: you can not see caustics reflected in mirrors(-like).

Glossy caustics If this solution replaces caustic cache, I will add the support for glossy caustics too. It currently render only specular caustics like caustic cache. I added the support for rendering glossy caustics. This is normal path tracing: off.jpg and this is Hybrid: on.jpg The threshold to...

B.Y.O.B. wrote: ↑Mon Jun 24, 2019 7:41 pm I'm not sure if this new hybrid back/forward feature would be an exception to this rule?

Nope, it isn't.

So this scene is actually no valid test scene for the new hybrid solution, which I should have figured before :oops: If you add a couple of walls, it is a good test scene: - Path tracing => mostly fireflies - Hybrid path tracing/BiDir => good caustics on walls - Something able to render SDS paths t...

Important note: because Hybrid Back/Forward path tracing has still a strong path tracing component, it is often useful to disable the light visibility in specular paths to avoid many fireflies. This fact is was hidden by the bug I have fixed. How to disable the light visibility in specular paths? I...

The main reason why we are considering to use a different wiki service than the current MediaWiki is that the MediaWiki syntax is obscure and cumbersome to learn and use. The new wiki service should offer a simple and standardized syntax, for example Markdown. It should be easy to contribute to the...