⟩ How to make a VRML world have a small file size?
There is one simple way to drastically reduce the file size of your VRML world. You can reduce the file size by 80-90%!! You just need to compress it using GZIP.
GZIP is available for almost all available Unix platforms, plus other machines. Do a search at your favorite search engine to find a version for your machine.
In Unix, if you have gzip, you only need to type: gzip filename.wrl, and your file will become compressed and have the new filename filename.wrl.gz.