Computer too slow?

[Darby Edelen]

Your video card should support full OpenGL previews, but I’ve had bad luck with the OpenGL in AE. Check your fast preview preferences to see what you’re using (it’s at the bottom of the comp window, a small button that looks like a window with a lightning bolt through it). I prefer to use Adaptive Resolution as that works better on my system, but you could play with it to see what works for you.

[Zwirnschi]

Hello!

Thanx for your reply.
I set the preferences now on OpenGL and my GraphicCard to more Performance than Quality – ist works a bit better. Not soo good as I want it but better. Thanks for your Tip with this Settings!

Greets

[Kevin Camp]

what codec was your quicktime movie using? ae doesn’t handle temporal (also called interframe) compression well (wel it handles it, its just a lot slower to work with). some ccodecs will allow your to turn interframe compression off, like lossless animation, which calls it compression keyrframes. but you could also render to an image sequence to avoid interframe compression.

but this only make a noticeable difference in working with footage (like scrubbing), you would not see much of a difference in rendering. so like dave said, ae is not realtime. and opengl can help, but there are only about a dozen opengl accelerated effects, although there can be noticeable boost if you are using motion blur and blending modes. also if you preview in opengl, you’ll also want to set your render to render in opengl (use the render settings from the render queue to enable), there are slight differences in how opengl renders and if you don’t use it or your final render you may wonder why the final is different fromt he preview.

Kevin Camp
Designer – KCPQ, KMYQ & KRCW

[Zwirnschi]

Hi all!

Thanks for your answers – I think the problem is on my Equipment. I used for testing a normal digicam and this is the Problem I think. When I convert the mov File in an avi or wmv it is working a 100 times faster than the mov direct from the cam… I should use the Videocamera from a Friend – convert the File on my Computer and try it from this file. I think that will be working much better than this low-res stupid videos from digi-cams…

Thanks a lot for your help!

Greets!!

[Kevin Camp]

you’ll probably run into the same problems with avi and wmv if you use a codec that uses interframe compression (like any of the dv codecs and many others). the capture device that you use probably has a native codec that will capture without interframe compression, possibly without compression at all.

i use a decklink card to capture to blackmagic’s 10-bit uncompressed codec and it works great with ae and i don’t need to convert it to anything. it puts the file in a quicktime wrapper (.mov), so the format (or wrapper) isn’t the problem.

Kevin Camp
Designer – KCPQ, KMYQ & KRCW