height_field - Meshes of triangles by images or pattern functions Built-in shapes height_field by images height_field rastered   height_field by functions   height_field solid   height_field Mountain + Valley HF macros - These macros generate triagle meshes of different shapes. Declared in "shapes.inc" HF_Square macro   HF_Sphere macro   HF_Cylinder macro   HF_Torus macro