Q: Composite EFX...How to
Hey All...
A little creative advice if available...
I've been straining my wee brain, trying find a way to do the following...
I have a short video scene exported from Sketchup.
It has a 3 rail fence about belly high, with room behind the fence to place talent.
I have shot talent against green screen and am trying to put them into the scene, behind the fence.
My thought was to create two exports of the same scene - one with the fence, and one without and then place the talent against the first scene (without fence), then mask the second scene with the fence, over top, thereby putting the talent in between the two scenes.
I have tried every configuration of talent on top, talent in between with the masked clip on top, and the other way round, with the masked clip on bottom. So far I have just been masking the area of the clip with the fence... I have tried to invert the mask, etc, etc...
This does not appear to be an accurate thought process... lol... without trying to recreate the fence in the green screen shots, anyone have a workflow that would accomplish this? I also have Motion, but haven't tried anything there yet.
Thanks in adavnce
Chizz
OS X Yosemite (10.10.4), MacHead since 1988
Posted on May 19, 2016 10:37 PM
The critical feature of the fence clip is that it has an alpha channel. I do not know if sketchup will export png or tiff with alpha.
Posted on May 20, 2016 7:33 AM
