Sunday, July 07, 2013

multiple videos on dome

Checking out different ways to do multiple videos on the dome.

1. Tried making a three-video wide panel, and using DMProjector to warp it for the dome. Using avisynth overlay, something like
video1=Audiodub(Overlay(bg1, top, 834, 771), audio)
video2=Audiodub(Overlay(video1, top2, 234, 771), audio2)
video3=Audiodub(Overlay(video2, top3, 1434, 771), audio3)

resulted in a clip like this after appropriate cropping: 

Using DMProjector to show it onscreen with 40 degrees vertical field of view starting with the horizon (altitude of 20 deg) resulted in a dome master like this,

As you can see, the side videos have been squished. When I used gimp and duplicated the middle video, rotating it and pasting it on the two sides to get

Although the videos are supposed to be identical, on the dome the side videos came out much bigger than the centre video. That's all for now, probably I'll revisit this theme later.

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