If your models rotate slowly try the following


Reduce surround lights, because they can slow down rendering

Try to reduce number of different materials in the external 3D editor

Make sure textures is not too large 1024 or lower is recommended

Optimize your model under external editor, like ProOptimizer in 3DS Max


See the article for reducing polygons here

https://www.shapeways.com/tutorials/polygon_reduction_with_meshlab



Created with the Personal Edition of HelpNDoc: Generate EPub eBooks with ease