VRay SP3a: Max 2010 rendering (a lot!) slower than 2009?!

[boogiedee]

Anyone tested max 2010 with max 2009 up against each other?

I have using the cecofuli benchmark scene:
http://www.francescolegrenzi.com/ext..._Test_v0.1.rar

What's wrong?!? Max 2010 takes over twice the time to render the same scene compared to max 2009, both using the same VRay SP3a...?

VRay 1.5 sp2 max 2009 - 18 min 6 sec

VRay 1.5 sp3a max 2009 - 17 min 24 sec
VRay 1.5 sp3a max 2010 - 37 min 11 sec

Can anyone reproduce my result?

Dell Precision T5400
Dual quadcore E5450 3 GHz
8 Gb RAM
XP 64 bit sp2

Cheers,
Boogiedee

[vlado]

Disable the 3ds Max bitmap pager, save the scene, restart 3ds Max, and try again.

Best regards,
Vlado

[3LP]

what does the 3ds Max bitmap pager anyway ?

is it better to always disable it to avoid longer rendertime ?

[vlado]

The bitmap pager allows 3ds Max to store some bitmap information (textures and/or rendered images and render elements) to disk and so to reduce the RAM usage, at the expense of some slowdown in the rendering.

In 3ds Max 2010, the bitmap pager is always enabled by default (in was disabled by default in previous versions) in order to allow the scanline renderer/mental ray to render large resolution images. However, this may have negative impact on render speed for some scenes.

Best regards,
Vlado

[Morbid Angel]

Disable the 3ds Max bitmap pager, save the scene, restart 3ds Max, and try again.

Best regards,
Vlado

its odd that it would slow down so much even on such simple scene? would you say that increasing the bitmap pagers size will speed things up or not?

[Donald2B]

I rendered out the scene that you provided but my results didn't differ quite as much as the OP.

Max2010 was a fresh install and all options left at default settings. Opened file and hit render.

Max2009 - VRay SP3a: 20m 8s
Max2010 - Vray SP3a: 25m 6s

Dual Xeon 5355 2.66GHz
8GB Ram
Vista Ultimate 64bit

[RE:FORM_STUDIOS]

I can't disable the bitmap pager in 2010, it says that the paging is handled automatically.

[Paul Oblomov]

This is how to disable bitmap pager.

The bitmap pager can be disabled through MAXScript by entering the following command into the MAXScript listener: ibitmappager.enabled = false.

This change takes effect when you save and reload the scene. The setting is saved with the scene, so the bitmap pager can be disabled on a scene-by-scene basis

[vlado]

Also make sure your Windows is up to date; people seemed to have some issues with this on Windows XP that did not have XP SP2 installed.

Best regards,
Vlado

[gagui]

I'm having this problem too.

So we have to disable the bitmap pager in every scene we create?

[gagui]

I did the bitmap pager thing to disable it and now the render time is even worse.
I get 24 min in 2009 and 45 min in 2010.

Whats happening here?????
Please Vlado fix this.

[stevesideas]

I rendered out the scene that you provided but my results didn't differ quite as much as the OP.

Max2010 was a fresh install and all options left at default settings. Opened file and hit render.

Max2009 - VRay SP3a: 20m 8s
Max2010 - Vray SP3a: 25m 6s

Dual Xeon 5355 2.66GHz
8GB Ram
Vista Ultimate 64bit

Thats quite a serious difference. What if an animation is being done and the frames each take a minute longer...thats quite a bit of extra time if you have to render a lot of frames..

[vlado]

Please Vlado fix this.

I'm afraid nothing I can do there for the time being - the V-Ray code is exactly the same for both 3ds Max 2009 and 3ds Max 2010, so any differences from there on are because of different 3ds Max code.

If you wish, you can send me a scene that shows a larger render time difference and I'll try to get the Autodesk developer support to look into it.

Best regards,
Vlado

[stevesideas]

I'm afraid nothing I can do there for the time being - the V-Ray code is exactly the same for both 3ds Max 2009 and 3ds Max 2010, so any differences from there on are because of different 3ds Max code.

If you wish, you can send me a scene that shows a larger render time difference and I'll try to get the Autodesk developer support to look into it.

Best regards,
Vlado

Are you sure they havent coded 3dsmax like this so Mental Ray gains an advantage over vray

[vlado]

Yep, I'm sure, because mental ray has similar issues...

Best regards,
Vlado