Env. Light Visibility Cache

[lacilaci]

and in interior:

old map:

new cache:

some parts good, but others not so much...

[epilectrolytics]

Works great so far in my initial testing, except for the attached scene which shows a different light distribution with ELVC:

concrete5.blend.zip

(820.93 KiB) Downloaded 132 times

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I'd like to see this extended to other light types and indirect light as well even when this means CPU only rendering.

I don't understand if this is meant to work in combination with PGI, like two different caches being used?
Because I thought the metropolis sampling of the photon cast will already "find all openings" like BiDir does so that when the indirect cache is used no portal-like solution was necessary?

[Dade]

I don't understand if this is meant to work in combination with PGI, like two different caches being used?

Yes, PGI accelerates indirect light while this one accelerate direct light.

[lacilaci]

Latest daily for me still doesn't work with flatcolor, maybe something has to be changed also on blendluxcore side? Can someone else try it out?

EDIT: it kinda seems it works on linux build...

[epilectrolytics]

Yes, PGI accelerates indirect light while this one accelerate direct light.

Ah I see, thanks for clarifying!

[lacilaci]

Can this be made so that it also works in open spaces? Seems no vismap works better than cache or default one. This could lead to issues where we have both exterior and interior parts visible.

[epilectrolytics]

Question regarding animation:
If I was animating an interior with Cycles, I would set up portals and that's it.

But what about LuxCore simple map or ELVC ?
Are they view/camera dependent?
The simple visibility map is apparently built anew for each frame but very quickly.
What about visibility cache, does it change with camera position or when objects are moved?
That would be a disadvantage compared with portals.
If the camera position matters, we'd need a persistent visibility cache too (maybe somehow merged with PGI indirect cache on the same entries).

[lacilaci]

Don't know if related but recent version of blendluxcore crashes when I try viewport render and have flatcolor as environment (even when standard visibility map is used) Hdri works ok in viewport

[B.Y.O.B.]

I can reproduce it, will look into it.

[B.Y.O.B.]

I have fixed the crash.