File: tools.inc

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// Use this Macro if you need to convert vectors
// from Terraform to POV-Ray coordinates system
// Contributed by raymond ostertag <raymond.linux@free.fr>

#macro TF2POV ( Coord )   
  #local VecTrans = < -0.0, 0.0, -0.0 >;                    // Translation X=-0.5 and Z=-0.5
  #local VecScale = < TF_X_SCALE, TF_Y_SCALE, TF_Z_SCALE >; // Applying Scale Factors
  #local VecAxis = < 1, 1, 1 >;                             // Reverse Z axis
  (Coord + VecTrans) * VecScale * VecAxis
  #break                                                    // Return value
#end