LuxCoreRender Forums

JoeDDD wrote: ↑Mon Oct 21, 2019 5:31 pm

Dade wrote: ↑Mon Oct 21, 2019 5:13 pm That is a MIS (Multiple Importance Sampling) bug, can you post the test scene ?

That picture is just a material preview screenshot of a mirror material and nothing else really.

I should have fixed this problem, the fix will be included in the next automatic builds.

That is a MIS (Multiple Importance Sampling) bug, can you post the test scene ?

I think the best solution for you would be to use an OpenVDB to describe the heterogeneous volume and PhotonGI caustic cache to render under water light. But I have no idea if there is out there a tool to model such volume. I have seen this kind of stuff over time so I assume some one has looked in...

So if I was rendering a sea I could also benefit from transparent shadows? Only if you are looking for lighting some under water object. In your case, you need to use glass because of water refraction (NULL material is similar to a glass with IOR = 1 without the problem of specular materials and pa...

It depends on what you are trying to achieve but you may want to use NULL material, not glass material: in your case, a path tracer can not render the light received by the inside volume (because it is going trough a specular material like glass). While it can render the amount of light received tro...

In the past days, I have done a huge rework of LuxCore internal light and mesh interface. This start as a fix to this (https://github.com/LuxCoreRender/BlendLuxCore/issues/310) problem and ended as a huge rework. This was done to align C++ and OpenCL results and to add full support for instanced and...

Air IOR is 1 not 0 :?: IOR is the ratio between light speed in vacuum and light speed in your volume. Air has a light traversal speed very near to vacuum so IOR air is about 1: https://en.wikipedia.org/wiki/Refractive_index A IOR of 0 can not exist by definition of IOR (it would require a volume wit...

I got curios if there was a way to control volume scattering based on thickness or pointiness. I'm doing water shading tests and usually in the wave peaks you see these bright blue parts, I thought I could use volume scattering to have deeper, calm parts scatter less and these high peaks scatter mo...

For just rendering, you may want to use luxcoreconsole (of pyluxcore tools): it is a command line only tool, useful for background, remote, etc. rendering.

Fox wrote: ↑Sat Oct 19, 2019 6:18 pm But how can i resume RSM file?

Use the .rsm file instead of the .cfg as argument.