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Magnus Pettersson

Member Since 26 Feb 2009
Offline Last Active May 11 2013 07:41 AM
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Posts I've Made

In Topic: Why is Houdini switching to OpenGL 3.2 but not 4.3?

08 May 2013 - 04:44 AM

 malexander, on 07 May 2013 - 03:20 PM, said:

Which drivers were causing problems with the Quadro 4000? Newer drivers than 304.88, or older ones (or both)?

It was both. I dont remember what earlier version we tried but i know that one was a 304.XX but less than 88. And one was 310.XX. The 319.XX (one that is currently latest for many gtx cards from nvidia, including older quadro 3700 that we also got on some computers here) didnt work at all so clearly not supported driver for the quadro fx 4000.

Im testing on a GTX 680 now and happy to say that houdinis viewport outperforms maya (and maya 2.0 viewport) and blender in pure opengl performance. We did fps comparison on 10+ million poly sculpts from zbrush when moving around the viewport in different modes like wireframe, smooth shaded and smooth shaded with wires.. Also it was faster in selection speeds on both faces, points and edges (lasso + paint selection as well).

In Topic: Why is Houdini switching to OpenGL 3.2 but not 4.3?

07 May 2013 - 12:51 PM

Thanks for the information Mark!

We got around to do some more testing with more than one computer and seems like it was a mix of bad driver versions with the graphics card that caused issues. The first test machine had a Quadro FX 4000 and it preforms worse than our GTX 580 cards.

If anyone else got a Quadro FX 4000 card, it seems the driver 304.88 is the one to use on linux now, other drivers made a huge impact on performance depending on what desktop manager we used.

In Topic: Multi-layered procedural muscles WiP

05 May 2013 - 11:14 AM

Pretty cool stuff you got going here Vlad! Very good job so far.

What are you using for collisions? are you bulding SDFs from the muscle geo or ray/intersect or other trickery?

A tool like this has a lot of potential in Houdini and would definitely increase houdinis character "muscles" hehe =)

Will follow this with interest :)

In Topic: Why is Houdini switching to OpenGL 3.2 but not 4.3?

02 May 2013 - 12:16 AM

Hi Edward. Yeah unity is really slow so were not even considering this as an option, but houdini seems to be sensitive for us in what we run it on compared to nuke/maya etc so i was wondering what you guys use for linux distro&manager so we could test it out and see if its not some other problem with hardware configuration etc. :)

In Topic: Why is Houdini switching to OpenGL 3.2 but not 4.3?

30 April 2013 - 05:48 PM

Interesting thread :)

What do you guys at sesi use as your linux distro+window manager/gpu for best performance? Were going to change os at work now and are doing a beta testing of ubuntu 12.10 and we seem to have very different performances in houdini depending on what window manager we test with (the test machine is using a quadro 4000, with 304 something nvidia driver).
At home in win8 with gtx580 (306.97) i get way smoother performance out of houdini than with the much more powerful machine i have at work. (except for the ghosting mesh problem little now and then).

While on viewport stuff, is there a plan to implement opensubdiv at some point? http://graphics.pixar.com/opensubdiv/ (know its been asked before but wont hurt poking on it again)
*puppy eye look*

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