From: "Brendan Bolles" <AE-List@media-motion.tv>
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Subject: Re: [AE] VR Tools GPU/CPU VRAM limitations
In-Reply-To: <list-6468449@media-motion.tv>
Date: Thu, 21 Jun 2018 10:30:56 -0700
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References: <list-6468449@media-motion.tv>
To: "After Effects Mail List" <AE-List@media-motion.tv>

On Jun 21, 2018, at 9:19 AM, Stephen van Vuuren wrote:

> I can find no useful information on:
> =20
> 	=95 Is there a way to force CPU rendering?
> 	=95 How much VRAM is required and can you use SLI to split via =
multiple cards as 8+ GB VRAM cards are very expensive.
> 	=95 What frame sizes does the VR tools support? We have 5600 x =
4200 and 8000 x 8000 =96 the weird part is simple projects are fine, but =
bring in lots of layers, bitmaps and the errors begin.
>=20


The VR tools are GPU-only, and this has been a huge problem for us.  Due =
to the nature of VR, the resolutions are often very big.  We were =
rendering 8000x4000.  We working working at quarter rez or smaller, =
happily rendering at half-rez to see our revisions.  Big mistake.

When it came time to render full-resoltion, most of our machines were =
incapable.  Among our 30 Macs we had just 4 that could do it.  Weirdly, =
we had other machines with the same graphics card and everything else =
that couldn't.  I guess we were lucky to have the 4, or else we couldn't =
have rendered.

I'd guess having as much memory on the Graphics card as possible would =
improve your chances of being able to render, but this business of not =
falling back to the CPU is untenable.


Brendan