Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: hoggerhead on 2014-03-27, 10:52:13

Title: Low speed of rendering on PC with 2 processors
Post by: hoggerhead on 2014-03-27, 10:52:13

Same scene. Textures in dropbox in the same place.
Rays/s total  1,151,362 - i7-2700K
Rays/s total  574,892   - 2x Xeon E5-2650

Or I miss something?
Thank You

Title: Re: Low speed of rendering on PC with 2 processors
Post by: Ondra on 2014-03-27, 14:34:01

Hi,
does it happen in every scene, or just this one? What are the results from the Corona benchmark - http://forum.corona-renderer.com/index.php/topic,559.0.html?

Title: Re: Low speed of rendering on PC with 2 processors
Post by: hoggerhead on 2014-03-27, 15:31:11

How to run (import to 3d max?) this scene with A6?

Attach a4 bench all ok.

Title: Re: Low speed of rendering on PC with 2 processors
Post by: hoggerhead on 2014-03-27, 15:35:17

Try on two scenes... same, in other scenes ok.
false alarm?

Title: Re: Low speed of rendering on PC with 2 processors
Post by: Ondra on 2014-03-27, 16:26:24

Can you still replicate the problem on the single scene - wasnt it caused by for example some random antivirus check running in background?

Title: Re: Low speed of rendering on PC with 2 processors
Post by: hoggerhead on 2014-03-27, 18:44:21

Tomorrow I will try, thank you for fast reaction and corona.

Title: Re: Low speed of rendering on PC with 2 processors
Post by: hoggerhead on 2014-03-28, 10:45:09

Hi.
Still same situation with this scene. Turn on, turn off antivirus - speed of rendering unchanged.

Intresting...

Title: Re: Low speed of rendering on PC with 2 processors
Post by: hoggerhead on 2014-03-28, 10:55:10

That's it!!!
Textures!!
Use material override, exclude windows glass.

Intresting in that: I use 3 PC -  2 with i7 and 1 with 2 xenons, and both i7 PC's without override have same speed of render.

Title: Re: Low speed of rendering on PC with 2 processors
Post by: Ludvik Koutny on 2014-03-28, 11:23:17

Open asset tracker and check if you have bitmap paging enabled. If it is enabled, disable it :)

Title: Re: Low speed of rendering on PC with 2 processors
Post by: hoggerhead on 2014-03-28, 11:40:00

Yes it was enabled, but nothing changes when I disable it.

Title: Re: Low speed of rendering on PC with 2 processors
Post by: Ludvik Koutny on 2014-03-28, 11:56:01

Now that is extremely weird. Maybe try to disable it, save scene, and then reopen and render...

Title: Re: Low speed of rendering on PC with 2 processors
Post by: hoggerhead on 2014-03-28, 12:22:19

Bingo!

Sorry for wasting your time. Write that to my renderBible.

Thank you.

Title: Re: Low speed of rendering on PC with 2 processors
Post by: Ondra on 2014-03-28, 12:31:12

<3 autodesk

Title: Re: Low speed of rendering on PC with 2 processors
Post by: Ludvik Koutny on 2014-03-28, 12:34:43

Make sure you always got bitmap paging disabled...  always ;)