So does GPU acceleration only speeds up (rendering) effects?

S

Stab

Well-known member
I was just wondering, what exactly is the role of the GPU when it comes to editing?

I use Premiere CS6 and I have a GTX 660 with hardware acceleration enabled. This means I indeed never have to render the previews of accelerated effects anymore like cross-dissolves, gamma corrections, etc. I also know that when I'm rendering or exporting a timeline which such effects applied, that the GPU shows activity in the activity monitor so I'm sure it is speeding up the process there.

But that's it right? When I export a timeline with no such effects, or render clips with just a warp stabilizer applied (non GPU accelerated effect), the GPU shows no activity at all.

Is that normal? In other words, it only seems to help with rendering certain effects but does nothing when those effects are not used?

Am I missing something? Is there any way to get more out of my GPU?
 
According to the Adobe blog, it's not necessary to utilize GPU render support for non-GPU effects, because they're simple enough not to need it.
 
Alright so everyone has this? There is no way to make the GPU aid in rendering / exporting 'everything'?
 
Rendering from AME gives you a GPU acceleration option. Further, I once had my GPU die on me and was running on integrated graphics, and exports from Premiere were a lot slower. So yeah, it probably uses GPU acceleration by default.
 
Has anyone in here used GPU Acceleration in Sony Vegas pro 13 with any success? I have an awesome NVidia GeForce 980X card that's just fantastic, and I'm using a liquid-cooled Intel i7 chip, but whenever I render using GPU Acceleration, at some point in the render, Vegas will simply, inexplicably, just stop. I'll check back on it and it will say 0% rendered and the Vegas preview window will be a black screen. No reason, no explanation, no logic behind it. That's just it. But when I render using my CPU (which is fine but just takes much longer and hogs my tower in the process), it renders just fine. I'd REALLY like to take advantage of rendering with GPU acceleration. Anyone know what settings I may have overlooked with my GPU acceleration, in order to make it work? I'd be grateful for any help anyone can provide!

Sincerely,
Ryan Graves
Seattle Wedding Videography
www.seattleweddingvideography.com
 
Stab said:
I was just wondering, what exactly is the role of the GPU when it comes to editing?

I use Premiere CS6 and I have a GTX 660 with hardware acceleration enabled. This means I indeed never have to render the previews of accelerated effects anymore like cross-dissolves, gamma corrections, etc. I also know that when I'm rendering or exporting a timeline which such effects applied, that the GPU shows activity in the activity monitor so I'm sure it is speeding up the process there.

But that's it right? When I export a timeline with no such effects, or render clips with just a warp stabilizer applied (non GPU accelerated effect), the GPU shows no activity at all.

Is that normal? In other words, it only seems to help with rendering certain effects but does nothing when those effects are not used?

Am I missing something? Is there any way to get more out of my GPU?
Click to expand...

Well wouldn't really make sense to use the GPU since it's all about the visual experience. The reason why you need it in stuff like Maya and so on is because you need the fast visual rendering to actually see what you are doing, since the visual part is invented as you go along.
Non-intensive like simply displaying a video on a timeline where the data is already present (not invented by the computer) is not particularly heavy on the visual side and therefore you'd get more from having a faster cpu with matching amount of ram.... and then we can continue down the line to bus connections and hdd speed and so on.

Be careful when choosing a gfx... one that is good for one thing, might suck at something else compared to the nearest competition. Fx. a Radeon card would be terrible for Maya compared to a NVidia card of the same size.
 
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