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
Shared GI error
Shared GI error
- Attachments
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- First Frame = no missing calculations
- RoadCam1_00051.png (181.69 KiB) Viewed 6883 times
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- Later Frame = missing calculations
- RoadCam1_00310.png (195.77 KiB) Viewed 6884 times
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'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.
- Jure
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
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.
"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
this problem is still around..jure wrote:What are your render settings? Looks like there are not enough photons hitting in last frame.
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:
- Attachments
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- 1000200.png (109.75 KiB) Viewed 6800 times
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- 1000000.png (89.31 KiB) Viewed 6782 times