Im trying to make a movie from an array of images but im lost on how to do this. I dont want to capture the whole screen to the movie, just the array that Im creating with a series of copy. requests.

1. Capture stream;
2. PImage[] linetest;
3. then later....
4. if(keyPressed) {
5. linetest[captureFrameNum] = new PImage(xRes, yRes);
6. linetest[captureFrameNum].copy(stream,0,0,xRes,yRes, 0,0,xRes,yRes);
7.  captureFrameNum++;
8. }

I know about movieMaker library, but as far as I can see it only saves the whole stage. Any help would be much appreciated.
P.