VMS11: GPU rendering not working

Weakling wrote on 10/20/2011, 5:48 AM

My graphics card is not used for rendering eventho Vegas sees that my card supports CUDA (via the "Check GPU" button). I use the Sony AVC plugin and set the rendering to "GPU (if available)", but it does not work. The GPU utilization stays at about 6%, the same as with a CPU only render. A ten minute clip takes about 20 minutes to render in whatever mode (no effects used).

I am sure my rig can use CUDA rendering, because in Nero Video, the same clip with the same settings takes 6 minutes to render (!) and the GPU is used for about 30%. So it must be possible for Sony Vegas, which in my eyes should be the more professional product, to match that performance.

Anyone any ideas how to get the GPU rendering working?

My system:
- i5 860
- 4GB ram
- Asus GTX560
- nVidia driver 280.26
- Windows 7 64 bit
- Sony Vegas Movie Studio HD Platinum 11

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Comments

Sykes wrote on 1/4/2012, 6:51 AM

Although I know VERY LITTLE about Sony's GPU-Accelerated feature, what exactly is the benefit of using cuda compared to your regular cpu?

vkmast wrote on 1/4/2012, 8:10 AM

80sGuy,
you may remember the thread
http://www.sonycreativesoftware.com/forums/ShowMessage.asp?Forum=12&MessageID=792473
and there this:
In v11 release notes:
GPU-accelerated rendering performance will vary depending on your specific hardware configuration. If you have an older CPU and a newer GPU, rendering using the GPU may improve render times.

In my case, I don't see much. Like they say, YMMV. (last posts in here)

Markk655 wrote on 1/4/2012, 9:09 AM

Although I know VERY LITTLE about Sony's GPU-Accelerated feature, what exactly is the benefit of using cuda compared to your regular cpu?

It allows you to offload some of the processing load from the cpu to the video card. This allows your cpu to have more capacity for the rest of the rendering process.

On my machine (a bit slow by today's standards, Core 2 Duo 2.66 GHz; 4GB RAM), CUDA-rendering speeds up rendering to Sony AVC significantly (see my older posts for actual times).

DDDyson wrote on 6/7/2012, 4:29 PM

Bouncing an old topic.

I have a GeForce GTX 580 (compute capability 2.0), and I just installed the newest drivers (301.42, Win7 x64).

When I click the "Check GPU" button in the Sony AVC rendering options menu, it still says "No GPU available".

I have a Core i7 2600K 3.4GHz, so GPU rendering probably won't be any faster (?) but I'm still wondering why it's not detected?