Hello,
Is there any way to calculate the specific indirect components into a Light Group element?
Cheers,
Axel
Light Groups (Noob)
Forum rules
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Re: Light Groups (Noob)
A light group always includes both Direct+Indirect: you have to render the image with only the light(s) you are interested and, at that point, you can use indirect light AOV.
Re: Light Groups (Noob)
Then i am doing it wrong in Blender:
- Specify Light Groups in Blender View Layers
- Add lights to Groups
- The Light Groups appear as AOVs in the Compositor Render Layers
- Looking at one of them they are direct only
How can i approach it in a better way?
Thanks!
- Specify Light Groups in Blender View Layers
- Add lights to Groups
- The Light Groups appear as AOVs in the Compositor Render Layers
- Looking at one of them they are direct only
How can i approach it in a better way?
Thanks!
Re: Light Groups (Noob)
I see. Ok, i used Photons, so that was it. Is that planned somewhen in the future, or is it technically not possible? Kind of tricky to render scenes like the ones attached with a pure path tracer at all.
Thanks for helping, Axel
Thanks for helping, Axel
Re: Light Groups (Noob)
It is possible, it requires some work and it is not hard to do. But it is likely to have a separate cache for each light group so it can be quite expansive from memory usage point of view. It has also a little cost even if you use a single light group.
This is why you can do multiple renderings, one for each light group, enabling only the lights in the light group, mixing the results in post-processing and get the same result (aka light groups "by hand").