Adobe After Effects

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Keywords Adobe, Effects, better, performance, adaptive, resolution, vs, opengl

better performance under adaptive resolution vs opengl

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angus_farquharson (A_T) adobeforums.com
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PostPosted: Sun Feb 25, 2007 1:26 pm    Post subject: better performance under adaptive resolution vs opengl



I notice that when I select open GL I actually notice a slowdown in performance compared to when it is set to adaptive. I have a geforce go 7400 256mb nvidia graphics card. Adaptive seems to be far more responsive. Any ideas why this would be? I thought openGL was supposed to be faster...

angus
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uhlala (A_T) adobeforums.com
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PostPosted: Mon Feb 26, 2007 9:31 am    Post subject: Re: better performance under adaptive resolution vs opengl



OpenGL is faster than CPU on high end cards but there may be some issues on Lower-end ones. I am not sure about the performance of this card.
I have seen that the performancee also greatly depends upon the kind of project, size of footages, effects applied etc
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Jonas_Hummelstrand (A_T) adobeforums.com
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PostPosted: Mon Feb 26, 2007 4:07 pm    Post subject: Re: better performance under adaptive resolution vs opengl



After Effects 7.0 has limited OpenGL performance, and depending on what you are working with you will either see a performance increase or decrease, depending on everything from resolution and the type of effects you are using at the moment. Just turn it on and try.

Make sure you use the latest graphics driver for your card and set the AE prefs to "More Accurate" and set the texture memory settings inside the to 80% of your card's VRAM.

There is a bug in AE 7.0 and 7.0.1 which makes OpenGL less useful than it should have been, since already rendered frames (with a green line) are re-erendered when you scrub in the timeline.

- Jonas Hummelstrand
<http://generalspecialist.com/>
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