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  1. /* distantlight.sl - Standard distant light source for RenderMan Interface.
  2.  * (c) Copyright 1988, Pixar.
  3.  *
  4.  * The RenderMan (R) Interface Procedures and RIB Protocol are:
  5.  *     Copyright 1988, 1989, Pixar.  All rights reserved.
  6.  * RenderMan (R) is a registered trademark of Pixar.
  7.  */
  8.  
  9. light k3d_distantlight(float intensity = 1;
  10.                color lightcolor = 1;
  11.                point from = point "shader"(0, 0, 0);
  12.                point to = point "shader"(0, 0, 1);)
  13. {
  14.   solar(to - from, 0) Cl = intensity * lightcolor;
  15. }
  16.