View Full Version : Render proper UV map for painting/cleaning up

09 September 2011, 11:02 PM
Hi Guys,

There's a wide landscape with say a crane-shot slowly quickly upwards. All of a sudden monkeys run around in the shot. However, the director did not give a cr*p and decided to fix it in post so the vfx boy have something to do other then drinking coffee.

So we open up Nuke(X) and give it a go with some 3d tracking to get a nice an stable floor to remove the annoying monkeys.

We place a plane in the scene at floor level and it sticks wonderfully! Plane's hooked up on a Project3D and it's input is the original shot with monkeys. Now next is to render out a uv map with the scanlinerender-node and boom! A stable plate with monkeys to paint out. All very nice but here's the problem:

Since the shot is very wide and the floor stretches to the horizon. To render out useable map means outputting something like 8k+ for good resolution, and this takes ages to render and comp.

Am i missing something here or is there any way of JUST outputting the uv map of the plane (like 3d software would do when baking for instance) and not all the black nothingness?

Any ideas? Have been struggling with this and can not find a proper(and easy) way to do it...

09 September 2011, 11:56 PM
How do i render a uv map of JUST the uv of a certain object?

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09 September 2011, 11:56 PM
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