Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: M0ntana on 2014-09-29, 17:49:49

Title: Very long GI
Post by: M0ntana on 2014-09-29, 17:49:49
Hallo! I have very long GI miscalculation. PT + PT, 7 hours i had 36 passes, 1 hour 33 minutes with PT+HD and i have this.
6 RAM, i7 930 up to 4 Gz, Win 7 64x, 3ds Max 2014 x64. In "Development" I changed acc. structure to BVH full SAH because i had windows freeze on Building acc. structure.
Title: Re: Very long GI
Post by: Captain Obvious on 2014-09-29, 18:07:44
Haha, wow, 4000 rays per second! Something is broken. Try turning half the scene off and try again. Then turn half of the remaining half off, and try again. Keep doing that until you figure out what's causing the problem.
Title: Re: Very long GI
Post by: M0ntana on 2014-09-29, 18:13:02
Ty friend. Will try, any other ideas?
Title: Re: Very long GI
Post by: Ondra on 2014-09-29, 18:18:43
Do you have some free RAM? If yes, please send me the scene (https://corona-renderer.com/upload/), I will take a look
Title: Re: Very long GI
Post by: maru on 2014-09-30, 13:58:25
Did you change any other render settings? If it's an outdoor scene with lots of geometry then I would suggest rendering with PT+PT. Hd cache will give you little or none speed boost.
Title: Re: Very long GI
Post by: M0ntana on 2014-09-30, 14:15:30
Did you change any other render settings? If it's an outdoor scene with lots of geometry then I would suggest rendering with PT+PT. Hd cache will give you little or none speed boost.
PT+PT only 36 passes after 7 hours.  I changed only acc. structure to BVH full SAH in "Development" options.
Title: Re: Very long GI
Post by: Ondra on 2014-09-30, 14:25:28

Can you send the scene? I would like to take a look why it crashed
Title: Re: Very long GI
Post by: M0ntana on 2014-09-30, 14:29:15

Can you send the scene? I would like to take a look why it crashed
I did it this morning (uploaded as 1412073588_Scene.rar).
Title: Re: Very long GI
Post by: M0ntana on 2014-10-01, 18:27:06
06 hours 30 minutes 40 passes PT+PT.
Title: Re: Very long GI
Post by: Ondra on 2014-12-09, 19:13:51
Thanks for the scene. It renders fine here, but barely fits into 16GB ram. Either you did nto have enough RAM, or it was caused by some bug in an older version of Corona that is now fixed.