LuxCoreRender Forums

Thanks Charly!

Animation with caustic light only.

Hello, our instagram page is active Thanks! I tried to open an Instagram account but after a couple days they block the login asking for mobile phone number which I'm not going to provide. If there is interest here is an animation that would fit I think (link to the animation file in the first post...

Martini wrote: ↑Mon May 16, 2022 1:27 pm The bug:
https://github.com/LuxCoreRender/BlendL ... issues/773

The fix:
https://github.com/LuxCoreRender/BlendLuxCore/pull/774

Thanks Martini!

Now we need a developer able to merge...

There is a number of open pull requests of contributors fixing bugs.
https://github.com/LuxCoreRender/BlendLuxCore/pulls
Is someone of the developers with write access still active and ready to merge?

Starjukker wrote: ↑Mon May 16, 2022 6:43 amthe checkbox in the advanced menu of the material output node

This activates cache entries on the material surface, which is independent from volume entries controlled by the checkbox in the volume node.
The invisibility or grayed-out display of those settings in BiDir is a bug IMHO.

So I tried recreating the scene you attached from scratch and it still doesn't work somehow. In your file the photon cache is not checked for the glass volume. Somehow you cannot see this with BiDir engine so switch to path engine first. Now you can see the "use PhotonGI Cache" checkbox i...

2) For some reason I never fully understood (or bothered to folow up), the first ray of light tracing is not visible. It is a very improbable path for eye tracing: - a scatter event needs to happen right inside the laser beam (from random distribution in the whole volume area) - the scattering angl...

As already mentioned above, a proper volume setup is crucial. - homogenous volume with scattering and IOR>1 assigned via pointer as interior to the prism - homogenous volume with scattering and IOR=1 assigned via pointer as exterior to the prism, as interior to the volume cube and also checked for t...

It's a shame that this iconic luxrender scene is gone, with all the other old stuff as well it seems.
Here is the version from my previous post that runs with current LuxCore 2.6 using caustic cache: