Right (its back!!!) Today were going to take two separate pieces of video, you can see them in the view windows here:
And combine them into one video stream, using the chroma-key transparency feature of premiere. Heres a sneak preview of the final result:
so to start with we need to take our two video streams and place them on the time line. As we want both the cup and bottle to exist in the same space at the same time you need to layer them one on top of the other as shown here:
Next you need to open out the "Transform" effect in the "video" section of the effects panel. select the "clip" option and do the standard drag & drop onto the video in "video2".
The clip effect will now appear in the "effect controls". You'll need to click on 'Setup' now.
Another window will popup. First drag the slider (highlighted as '1') to about 49% or 50% to block out the side of the frame we want the other video to take. Then click on teh solid block highlighted '2'.
Change the colour to match the example below - a lovely green!:
then click 'ok' and 'ok' again to return to the main premiere window.