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A front projection effect is an in-camera visual effects process in film production for combining foreground performance with pre-filmed background footage. In contrast to rear projection, which projects footage onto a screen from behind the performers, front projection projects the pre-filmed material over the performers and onto a highly reflective background surface.
The front projection screen - custom made from thousands of pentagonal-shaped Scotchlite pieces to eliminate seam lines which might show on the finished film - sits at the far end of the stage. Despite its formidable size, a four-man crew could mount the screen on its tubular steel frame and erect the system in about two hours.
This is an incomplete list of front-projection CRT video projectors. List of CRT projectors ... 72 inch fixed screen projector with two projector lenses with crt ...
Rotoscoping is achieved by two methods, rear projection and front surface projection. In either case, the results can have slight deviations from the true line due to the separation of the projected image and the surface used for tracing.
Some examples of this are planetariums and virtual-reality cubes featuring front-projection technology. Some planetariums with dome-shaped projection screens have thus opted to paint the dome interior in gray, in order to reduce the degrading effect of inter-reflections when images of the sun are displayed simultaneously with images of dimmer ...
Comparison of several types of graphical projection, including elevation and plan views. To render each such picture, a ray of sight (also called a projection line, projection ray or line of sight) towards the object is chosen, which determines on the object various points of interest (for instance, the points that are visible when looking at the object along the ray of sight); those points of ...