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Hi guys,

I'm doing an animation and experiencing a weird problem, It seems that kray is not adding new calculations to the Shared GI file when it goes to a new frame. Look at the attached images for example.

Does anybody know what I'm doing wrong or whether it is a bug?

Thanks

NiGMa

What are your render settings? Looks like there are not enough photons hitting in last frame.

It is on Photons Estimate, its the same job I had another question about. I thought it should recalculate at every frame? how can it un out of photons?

Hey!

I've tested this a little bit and it didn't perform as I expected. It seems that photon estimate mode wasn't meant for animations so it cannot use GI file.

It's interesting that you get those artifacts though.

I suggest you try this:
Turn back to photon mapping with cache irradiance. Then make your FG settings very low: rays min 0 max 0, prerender 0%, spatial tolerance 1.
This should avoid shooting FG rays...

Turn to shared GI file + BOTH and render... Report if that helps.

I dont remember if that worked Jure, but I ended up using time interpolation, it worked great, I did have it set to every 15frames. Thanks for the suggestion though, another question. what does prerender do exactly, it seems if I set it to 100% i get faster renders, but I'm concerned that its quality is not as good, I cant see any difference but never used it with Cached Irradiance, I don't use it anymore for stills, grain looks nice. its weird sometimes I get renders with no grain at 100FG max FG with prerender at 100%. I don't understand something, hehe, oh well at least its working.

I'll post up the link to this animation when its finished. =)

NiGMa

This is from manual:
"Prerender is the first step of FG which helps in defining which parts of the scene should be evaluated more thoroughly. When prerender value is 50% it means that it will render use 50% of the final resolution. You should also note that increasing prerender will cause longer prerender pass but shorter final render pass. This value is best kept between 50%-100%."

Lately I've found out it's best to keep it at 100%. It seems to clear our any FG artifacts better.
Prerender will have no effect when using uncached GI method.

jure wrote:What are your render settings? Looks like there are not enough photons hitting in last frame.

this problem is still around..

Photons 500,000

Im trying to "SAVE" out a GI File so I dont have to calculate FG, Photons, CI every frame.

As a test I have a 200frame animation, I set layout up to render 0-200 in steps of 200, which results in two frames being rendered, when i hit "render sequence" in kray this is what happens:

Why don't you try OB3?

jure wrote:Why don't you try OB3?

ok, i will

WOOHOO!

I found the problem. It was the skylight.p texture environment I had on. If there is an animated envelope in skylight.p thats when the error occurs.

Now I can render animations.

I wonder if anyone else has had this problem? I thought skylight.p was popular?

I use it alot but dont think i have used animated envelope for the sky itself.