LuxCoreRender Forums

Dade wrote: Mon Dec 06, 2021 4:29 pm It looks to me that your problem is just in the halt condition: you have set to halt after 10secs and, with PGI enabled, the pre-processing phase is not yet over after 10secs so you just get an empty image with 0 samples per pixel.

Thank you..!! I feel so stupid

The attached file with activated PhotonGI Cache can't render properly (the image is almost all dark, with some non-black pixel in the bottom left corner). Without PhotonGI and render in view3d space work properly. It is a simple file, and I can't figure out what's wrong with it... Could you check it ...

Yes, the documentation is lacking on this topic.
...

I made an illustration about the problem in your scene, hope it helps.
The rays are fired from the light, since the light tracing is the problematic part in your scene.


Thank you for this explanation. For sure, we need a better documentation ...

Hello, the option to disable the interpolation is still absent?

1) I continued experimenting, and I found a possible cause of confusion: even if I leave checked the "Caustic Light Cache" file (under "Persistence"), it is not updated! To update it, I have to change the cache file name ; unflagging and flagging again the checkbox will not work. Attached you can ...

Thank you!
Igmar

The caustic cannot be seen in the 3D Viewport?

Hi,
first of all, thank you for Luxrender. It is invaluable.

I'm experimenting with specular-diffuse-specular caustics with Path Tracing and PhotonGI Caustic Cache. After some search and tests (maybe not enough..) I'm still confused about the minimal configuration required to see caustics through ...

Thank you!

Hi all,
I'm new to LuxCoreRender, and it's awesome!

I obtain really beautiful caustics by applying a texture (for example Blender Clouds) as the bump input in a face of an otherwise clear window. I would like to use a custom image map instead of the available textures as bump map. So I loaded an ...