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« on: 2017-01-27, 09:14:59 »
Hey guys I'm new here to this forum and a trial user of Corona. I've been testing Corona and thus far I'm pretty impressed by its speed, possibilities and ease of use.
Here at Isaac VR we have a new project were we need to integrate 360 stereo CG into a shot live action plate. The live action is filmed with a Nokia OZO.
I'm having great trouble in matching the placement of a cg object into the plate. Here is my render setup.
1) I used a single Tiff taken from the live action footage which has a Top (Left Cam) Bottom (Right Cam) configuration at a 3840x2160 resolution.
2) I used this Tiff as and (SDR) environment input set to spherical
3) With a Physical cam with the CoronaCamMod I used the spherical projection and stereo override.
4) Now any object that is in the scene will be rendered Top bottom and with stereo separation.
So far so good you might think but here comes the weird part. The Top image that is being rendered is the same as the bottom. It looks like the bottom half of the input TB tiff is being used twice. It looks like the bottom half is reprojected to the top with stereo separation. Needless to say combining the CG with the plate in post doesn't work. The bottom half of the image lines up correct with the plate, the top doesn't match. In my project case an object floats in mid air instead of standing on a table.
Does anyone here have an idea on how to solve this. Corona does something behind the scenes that I can't control.
Only thing I can think of to fix this is separating the left en right image and processing them individual after which you combine them in post production.
Thanks in advance,
Wilbert