So I have downloaded that zip, put in classpath, set the windows registry HKEY_USERS\...\Software\JavaSoft\Prefs\com\eteks\sweethome3d\j3d\additionalLoaderClasses=KmzLoader, and then go for some sketchup staff, export in kmz, and try to import to sweethome3d... but it says "format not recognized".

What you need to assign to

Code: Select all

-Dcom.eteks.sweethome3d.j3d.additionalLoaderClasses=the.collada.loader.class

is the full quallified class name that implements the loader interface (should be something like ). There must be some javadoc along with the jar or on the web site. (I repeat, I know nothing of collada, but I know of Java3d and SweetHome3D) Unless there is a problem with the collada file, or the Loader does not support some feature, it should work. I did it with a Loader made by my self and it worked straightforward. It saved me lots of pain in the ... brain.
Hope it works