I've been having a problem with footage that I have imported into AE CS3. I have captured the footage using fraps (I'm creating machinima) and after editing the clips together in sony vegas I exported as an AVI and added it to after effects.
My problem is this: When I look at the footage in AE small dots appear to flicker on the textures and static shapes seem to move. The flickering is constant, frame by frame. When I added the footage to the composition however it was fine. But when I now export my project the flickering has returned. Can anyone help me?
Footage interpretation is done in the project panel using the righ-click menu. since you captured from a realtime engine, the frames should have no fields at all and be interpreted as such. For generating clean, flicker-free fields the framerate would have to be double that of the output, e.g. 50 fps to generate a 25fps PAL version. For anything else you will simply have to accept the limitations of realtime content like swimmming textures or non-antialaiased geometry edges that will show up on video, but be barely noticable on your high-res computer screen during capture.