Some people prefer to use 3ds max to do modelling, but it makes it hard to export to crysis because of the software and as well as too much surface are generated while doing modelling in 3DS MAX. Polygon Cruncher is developed since 1999, firstly for Kalisto Entertainment. It is originally based on an initial algorithm proposed by Michael Garland. The principle is to contract mesh edges depending on a cost list. The process leads to reduce the number of triangular polygons.
Polygon Cruncher simplifies meshes and keep most of details even at high optimization ratio. Texture information, vertex colors, and specified normals are taken into account during the optimization, as well as many others settings. For example, it is possible to define a symmetry axis in order to produce symmetrical low resolution meshes.
Polygon Cruncher has the ability to generate a dynamic mesh (also called multi-resolution mesh) once the optimization has been computed. This features allows to choose the most appropriate LOD for the mesh in real time and is demonstrated in the Polygon Cruncher OpenGL viewer integrated to the software.
Reference: http://en.wikipedia.org/wiki/Polygon_Cruncher accessed 11/11/11
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