Warp mesh patch for Quartz Composer

Intended primarily for fulldome projection using a spherical mirror
Also used as a navigable movie player
Modelled after the warpplayer application

Written by Christopher Wright @ Kineme
Design by Paul Bourke

This is perhaps the most common type of application for planetariums using the spherical mirror projection technique. The input image is a fisheye and the only sensible navigation is rotation about the center of the fisheye. Note the use of the intensity mapping to compensate for the variable density of pixels, and hence light level on parts of the dome.