LuxCoreRender Forums

marcatore wrote: ↑Thu Jul 25, 2019 7:38 pm Doing this tests I remember that I've already used spot lights but then I've changed to area light cause I dislike the sharp shadow that spot lights do.

You could use point lights with some radius > 0 to have smooth shadows, maybe with a spotlight IES profile to shape the cone.

You should try to make the light invisible in indirect light. LuxCore has an option for that (not sure if it is exposed on Blender). Yes, it can be found in the "visibility" panel. Note that this panel is only visible for light sources where it makes sense: sun and hemi (infinite) lights....

Thanks, I added it to the tutorial page in the wiki.

We could also add an additional property that tells LuxCore what the full filmsize would be, even when using screenwindow for cropping (and potentially also the coordinates of the cropped area, in case that's important in the future). What do you think about this idea? Just using film.subregion wou...

The only solution, I can think to, is a dedicated helper C++ function in pyluxcore do read the original buffer and fills a temporary buffer with only the cropped border area So LuxCore internally uses the full resolution for its framebuffers when using subregion? Isn't that kind of wasteful? If it'...

Another issue I'm getting is when rendering region. It's very random it seems. Sometimes when I do region rendering with env.cache on I get this: This is was a general problem of automatic best radius evaluation affecting PhotonGI, ELVC and DLSC. The radius was seek as a percentage of image resolut...

Generally there's ~ 10000 AMD devs for whole PC & GPU line VS 11500 NVidia devs for just the GPU line... do the math. It's hard to overcome all this when even drivers are most often an issue. But performance is there. I don't think that more people automatically mean more/better output. It depe...

This warning comes from OIDN, you could try looking into their docs or opening an issue in their repository to ask about it.

Maybe we can devise an algorithm that detects which kind of env. light accelerator (none, single map, cache) would be best for the scene?
Shoot 1000 rays in all directions from the camera and check how many hit the infinite light?

Thanks for your feedback lacilaci. I agree with you, while testing the vismap cache, after a while I wished we had portals. Besides the arguments you made, with portals you also don't have to worry about persistent caching in animations (which only works if nothing moves). Maybe a case can be made t...