AE CS6 – Incompatible Preview Mode: Multiprocessing Disabled

[Todd Kopriva]

If you’re using a preview mode that uses the GPU, then Render Multiple Frames Simultaneously multiprocessing is temporarily disabled. That feature is made for spreading renders out over several CPUs, so it doesn’t make sense for GPU rendering.

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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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[Scott Green]

Will my GPU (ATI Radeon HD 5770 with 1GB of GDDR5 memory, PCI Express 2.0) not work with multiprocessing?

If I turn off multiprocessing am I not using OpenGL either?

Creative Multimedia Design Manchester | S©tt Green | Splurj

[Todd Kopriva]

This has nothing to do with specific GPUs. What I said applies to all graphics cards.

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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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[Scott Green]

Where do I see if I’m using the CPU or the GPU?
To me it looks like I’m using the CPU because when I click Preferences > Previews > GPU Information, next to Ray-tracing CPU is selected with (GPU not available – incompatible device or CUDA driver) next to it.
I can’t select ‘GPU’ from the list either?

This is a confusing subject!

Creative Multimedia Design Manchester | S©tt Green | Splurj

[Todd Kopriva]

Here are details of how the GPU is used in After Effects:

https://blogs.adobe.com/aftereffects/2012/05/gpu-cuda-opengl-features-in-after-effects-cs6.html

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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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[Steve Martin]

Sounds like you need to go to the NVIDIA website and download the CUDA driver

[Scott Green]

My Mac Pro has a ATI Radeon HD 5770 GPU installed in it, I’m guessing that an Nvidia driver won’t benefit me whatsoever?

Could you recommend an affordable Nvidia GPU that I should consider upgrading to in the future?

Thanks for your reply.

Creative Multimedia Design Manchester | S©tt Green | Splurj

[Alex Gerulaitis]

[Scott Green] “Could you recommend an affordable Nvidia GPU that I should consider upgrading to in the future?”

GeForce GTX-680 Mac Edition has the best power-to-cost ratio. 2nd choice – Quadro 4000 Mac (on ebay).

[Steve Martin]

Here ya go

https://www.adobe.com/products/aftereffects/tech-specs.edu.html

[Scott Green]

Thanks very much.
That list of products doesn’t show the GeForce GTX 680 as being supported by Mac as mentioned by Alex though, is that correct?

Creative Multimedia Design Manchester | S©tt Green | Splurj