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GL.Frustum
Copyright (c) Gautier de Montmollin/Rod Kay 2001 .. 2007
CH - 8810 Horgen
SWITZERLAND
Permission granted to:
1/ use this library, without any warranty, for any purpose;
2/ modify this library's sources (specification, body of this
package and of child packages on which it depends) in any
way, with an appropriate commenting of changes;
3/ copy and distribute this library's sources without restriction,
provided this copyright note remains attached and unmodified.
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