Just installed After Effects CS3 as part of Production Premium. Did all the updates, which finally let me enable OpenGL, but I practically don't see a difference with previews.
It's a cheap ATI X1600pro (256megs, I think, and AE set to 200megs), supports all features in OpenGL info. Vista 32bit, 2gigs of ram, running dual 20inch widescreens. Core 2 duo E6400, not enough memory for multiprocessing.
For some reason, testing an older project file, consisting of blurs, zooms, panning, fading in and out, comp at 640*480, I don't see one bit of improvement with OpenGL on. I mean, how can that be?
To get some exact times, I used make movie on the first 30 seconds of the timeline, 23fps, quicktime medium quality. I'd use OpenGL renderer and repeat without opengl. I did two times each. OpenGL came out to 00:05:10, 2nd time 00:05:08. Using CPU, for some reason one came out quicker, 00:04:41, and the 2nd time 00:05:09
Is my video card just slow enough to only be comparable to a single core on a core 2 duo? Or did I miss a setting and it's not using OpenGL at all, explaining the zero difference?
Also, the project file was from 5.0 After Effects, it would be converted . Next, the rendering plug-in, standard 3D, was not found, and that the default rendering plug-in will be substituted. And many parts of the effects, positions, bezier masks, are all offset, not timed right anymore.
Suggest reading up in the online help on OpenGL. I believe it will list which effects can be used.
Std 3D has been removed. Now you just get the Advanced 3D render. Not sure why your stuff is mistimed now. That shouldn't happen when you open older projects. Did you open it, or import it? Could be your frame rates between your projects are different.. All the footage interpolation set correctly (d1 vs square, etc). Comp settings the same (PAR same?)