Masking

[ghoraa]

Hello.

I have a footage of a person inside the car, driving.

I need to replace the background in the window, and put a moving background there, so it looks like a car is moving.

I know how to mask out the window, but i dont know how to put the moving background inside this mask.
When i put the background on the top layer, it applies to the area around the mask, but i need it to be inside it.

Could you help please.

Thanks

 

[ProgramError]

You need to invert your mask.

Ian Mayor (UK)
Program Error
9 times out of 10 I know what I'm talking about. This must be my tenth reply.