Log Message:
Update povray to version 3.50c

Summary of changes in version 3.5:

Major new features:

  * New noise functions
  * Photon mapping
  * Dispersion
  * Improved Radiosity
  * New light sources
  * Light groups
  * Isosurface and parametric objects
  * Sphere sweep object
  * New mesh object
  * UV Mapping
  * Improved textures
  * Improved and faster media
  * New patterns
  * Functions

Additional new features:

  * Reading of JPEG and TIFF image formats
  * Projected through
  * More realistic attenuation
  * New clock keywords
  * New image size keywords
  * Inverse transform
  * Spherical camera
  * New float function: inside
  * Splines
  * Metallic reflection
  * Mapping using warps
  * Double illuminate flag
  * No image and no reflection flags
  * Basic Unicode Support
  * Declare a float constant from an INI file

Bug fixes and enhancements:

  * Light source enhancements
  * Fixed normal average, reflection and other related problems
  * Fixed cylinder camera problems
  * Fixed the use of multiple closed bezier-splines in prism
  * Fixed infinite cone bug
  * Fixed the use of two subsequent colors, not separated by a comma in
      checker, hexagon and bricks.
  * Fixed gamma correct bugs
  * Numerous other bug fixes and optimizations