Objets Géométriques avec POV-Ray

smooth_triangle{ ...} - une forme de triangle plat shape avec vecteurs normales de surface modifiés
pour simuler un surface lisse et pour cacher des parties anguleuses entre les triangles individuels di un réseau (mesh) de triangles.

built-in shape, non-CSG

//Syntax: ------------------------------
smooth_triangle{ <vertex_1>,<normal_1>,
                 <vertex_2>,<normal_2>,
                 <vertex_3>,<normal_3>,
               } //---------------------

Beispiel:

// -------------------------------------------
smooth_triangle{
  // vertex vector, surface normal vector
  < 0.00, 0.00, 0.00>,<-0.55, -0.55, -1.00>,
  < 3.00, 0.00, 0.00>,<-0.75,  0.75, -1.00>,
  < 0.00, 2.00, 0.00>,< 0.75, -0.75, -1.00>
  texture{ pigment{ color rgb<1,1,1>}
           finish { phong 1}
         } // end of texture
  scale <1,1,1>
  rotate<0,0,0>
  translate<0,0,0>
} // end of smooth_triangle -----

Note: "triangle" and "smooth_triangle" are used normally to build all those objects which are too complex to be made by built-in shapes. They are usually not created by hand but are converted from other files (i.e. files which use HF_macros with file output) or generated by utilities(i.e. POV_Tree + TOM_TREE for trees, Poser + converter PoseRay for human and animal creatures etc. )
See also: mesh and mesh2.