Search found 751 matches

by lacilaci
Mon Feb 18, 2019 11:17 am
Forum: Development
Topic: PhotonGI cache
Replies: 429
Views: 12282

Re: PhotonGI cache

I also think that angle parameter should be hidden and materials should be cached as if no bump was applied. I have switched from using shading normal to geometry normal in PhotonGI. So bump/normal mapping is now ignored. It seems to work fine but it is hard to predict, give it a spin. will try onc...
by lacilaci
Mon Feb 18, 2019 10:33 am
Forum: Development
Topic: PhotonGI cache
Replies: 429
Views: 12282

Re: PhotonGI cache

But wait, I understand that a large radius will leak through geometry like in your example. But I don't understand that in the situation I posted, how do cache entries from sun even end up inside the box? They aren't leak from outside are they? Isn't the sun hitting the floor outside the box ? I as...
by lacilaci
Mon Feb 18, 2019 10:22 am
Forum: Development
Topic: PhotonGI cache
Replies: 429
Views: 12282

Re: PhotonGI cache

If the cache lookup is smaller than wall thickness only then it won't get through. Yes but this is expected, the radius must be smaller of significative geometry features. I mean otherwise you could use a huge radius and render all the scene with just a single cache entry. Just render a single plan...
by lacilaci
Mon Feb 18, 2019 8:39 am
Forum: Development
Topic: PhotonGI cache
Replies: 429
Views: 12282

Re: PhotonGI cache

I tried changing scene scale, model scale, normals, shaders, tesselating mesh, modifying mesh. Changing settings... If the cache lookup is smaller than wall thickness only then it won't get through. In every other situation it will go through mesh near corner if it's directly exposed to light (teste...
by lacilaci
Mon Feb 18, 2019 5:58 am
Forum: Works in Progress
Topic: OIDN animations
Replies: 9
Views: 377

Re: Underground

New animation. PathOCL, no PGI but OIDN. 200 frames á 3:50min. First attempt was with scattering volume but that took to long, will try that with Cycles again. Then I wanted to slow it down and scale it up but DaVinci Resolve failed me, so it's too fast now. Anyways, even without cache, animating w...
by lacilaci
Mon Feb 18, 2019 5:53 am
Forum: Development
Topic: PhotonGI cache
Replies: 429
Views: 12282

Re: PhotonGI cache

For better illustration I made a 50% render overlay on cache debug. You can see here that bright cache is created from sunlight that is actually going through mesh(skylight does that too) and then it is lighting up the box from inside. This is a matte material if you switch it to glossy the bright c...
by lacilaci
Mon Feb 18, 2019 4:51 am
Forum: Development
Topic: PhotonGI cache
Replies: 429
Views: 12282

Re: PhotonGI cache

Here's an example of cache failing really bad, I don't know what's going on there:
leaksheavy.jpg
279_luxcore.zip
(328.81 KiB) Downloaded 1 time
EDIT: This was happening before cache filtering, just to let you know it's not related to that. It seems that light is going through mesh, this might be source of other leaks too...?
by lacilaci
Sun Feb 17, 2019 6:32 pm
Forum: Development
Topic: PhotonGI cache
Replies: 429
Views: 12282

Re: PhotonGI cache

I also think that angle parameter should be hidden and materials should be cached as if no bump was applied.
by lacilaci
Sun Feb 17, 2019 6:19 pm
Forum: Development
Topic: PhotonGI cache
Replies: 429
Views: 12282

Re: PhotonGI cache

Ok, with filtering things start to look very very good. I am impressed.... here's my observation. spikes in cache are no more recognizable as leaks/bleeding/fireflies. And even extremely difficult situation/stresstest (sun+sky+interior+small pool/100K photons, + small cache size/100K photons) won't ...
by lacilaci
Sun Feb 17, 2019 3:59 pm
Forum: Development
Topic: PhotonGI cache
Replies: 429
Views: 12282

Re: PhotonGI cache

Dade wrote:
Sun Feb 17, 2019 3:09 pm
lacilaci wrote:
Sun Feb 17, 2019 3:06 pm
filtering looks fine. Does it help with spikes in cache or is it not affecting the issue?
Yes, it does, try it.
I'm on my way :D azure should finish linux soon too.