@DARKSHADOW715
xrf - stands for XML Reference File. You can read our xrf tutorial here:
viewtopic.php?f=165&t=9115chkn - a chkn is a type of file archive. It uses zip compression. The files a chkn contains includes CAL3D assets and an index.xml file.
meshes - a mesh is a 3D object. IMVU utilizes XMF's (XMF Mesh Files), which is a CAL3D mesh format.
and if we wanna derive from scratch how should I start
Room? Furniture? Clothing? Accessory?
what is the most easiest and convenient tool in creating stuff?
I use notepad++ and GIMP for most things.