brians

Simonv
Is out of core a planned feature...?

Yes we have it planned, but it is a while away, and will most likely come in stages over the next year or two.
eg


cheers

Thanks for the reply Brian! Appreciate the info dump.

No_ha
I recently tested XPU with this scene: https://twitter.com/NoahHaehnel/status/1458044379331973122?s=20 [twitter.com]

It took some time for the GPU to start but when it did it was fast. Without having any issues on my 8GBs RTX 3070. The memory metadata reached above 80GB although I'm not sure if this means truly 80Gbs being processed.
The grains are actual geo but instances of course.

Can you show a sample of the scene that caused these issues? IT would be interesting to see what amount is too much.

It seems like it has issues loading up singularly large objects. The first scene that wouldn't load only had one large vdb in it, the largest cloud vdb that Disney released for testing

3GB file - [assets.disneyanimation.com]

Also had some issues with a large array of copied curves, but only a few million points. I'll have to do some more granular testing rfe anything I find.

Did a little more exploring. Make sure you hide your karma viewport before sending a render to mplay, this hold true for both render to mplay and render to bg. The viewport retains it's memory footprint as long as it's visible.

XPU is fantastic, pretty easy to get addicted to the speed. I have noticed lots of out of memory issues on my 12GB 3080Ti. This is with scenes showing usage of under 5GB. So my assumptions are that I am limited to the available memory on the card (most of which is being used by windows and other apps unfortunately), and that XPU does not do out of core rendering.

Is out of core a planned feature or should I start looking at a secondary, dedicated 3090 with oodles of vram that will always be free?

ndickson
It looks like Houdini 16.5.413 and later have support for Unreal 4.19. You can download a recent daily build at https://www.sidefx.com/download/daily-builds/ [www.sidefx.com] I think we didn't get Unreal 4.19 until everyone else did, so we couldn't add support in advance, (though I'm not directly involved in that area, so I don't know specifics). I'm not sure what's involved with updating the github, but I'm sure it'll be done eventually. I'll ask around.

kimba23
BTW first Post!

Welcome!

Grabbed the latest daily build but the windows installer only has an option for 4.18 so I tried manually installing it but it complains about incompatibility.