[PD] GEM: texturing parts of multiple movies

[Georg Holzmann]

Hallo!

Many thanks - it works !

LG
Georg

> I replied too quickly,
> 
> a better (more general solution which could involve more movies and  
> no masking) would be:
> 
> set the gemwin 'orthagonal'
> layer the movies so A is furthest away, then B, C etc
> in front of this place a black rectangle
> then transparent rectangles part A, B C etc
> 
> render order is:
> movie A
> then part A
> then movie B
> then part B
> then movie C
> then part C
> etc
> finally render the black rectangle
> 
> 
> this way you can easily move the part around