PolyTrans is Memory Efficient

A technically advanced feature of PolyTrans is the use of a unique memory allocation and memory management system. This system, which is used by the various import and export filters, as well as the internal database manager, allows huge databases to be converted on machines with minimal memory.

Rather than allocate numerous small chunks of memory, the memory manager allocates large blocks of memory whose size is determined by the converter; the DXF and Wavefront import filters, for example, greatly benefit from this memory manager since hundreds of thousands of small memory elements must be allocated during the import process.

You will often find that other DXF readers will quickly run out of memory for files that have no problem being converted with PolyTrans. In addition, the import converters store all polygon data within the database using a compressed mesh format which uses various techniques to reduce memory usage (such as sharing the normal/texture/color/etc index arrays with those of the vertex index array). All this adds up to an efficient use of memory resources.