PolyTrans Is Unique

PolyTrans is the first converter of its kind to preserve texture mapping coordinates, smoothing information (vertex normals), bump mapping information (U/V tangent vectors), vertex opacity/transparency information and vertex colors. In addition, it is unique in its ability to bidirectionally input and output NURB patches (Renderman RIB), bicubic patches, quadric geometry (spheres, cylinders, superquadrics), and complex polygonal meshes. For example, PolyTrans can import a NURB surface via Renderman RIB and export an optimized, triangulated polygon mesh to a 3D Studio file with the added benefit that PolyTrans will break the mesh apart into multiple sub-objects if the mesh contains more than 64000 polygons, vertices or textures coordinates (this overcomes a limitation of 3D Studio).

A variety of other export options allow the converters to automatically triangulate the output data, cut holes out of meshes (when necessary) and tear apart the input data according to material assignment or grouping (used by the RIB and Wavefront export modules). In addition, the converters always output optimized polygon meshes wherever possible, regardless of the form or structure of the input polygon data (arbitrary polygon input data is always welded, optimized and any redundant polygon coordinates removed before being output).

In general the converters can convert any form of input to any form of output.