[WF-Protocols] Summary of ideas from wallaba's first proposal - meshes only

[Aglanor]

Hello all,

	Perhaps it is time to separate a bit the threads regarding meshes,
materials, other objects, maps, etc. We could do a first approximation
on meshes, and see how it turns out. 

	Here are some ideas I consider are an agreement between all
participants. If I'm wrong please correct me:

	* Materials are to be defined separate from meshes. Meshes will be
subdivided by materials used (1 submesh <-> 1 material), and will point
to the material they use.

	* For rotations, we'll use quaternions.

	* The coordinate system will be right-handed.

	* Manual LOD will be included.


**********

	Now, the things that are left to decide:

	* the coordinate system will be screen-centric or world centric?

	On a screen-centric system, you picture x and y axis defining your
screen: x points to the right, y points up, and, being rigth-handed, z
points to you.   

	On a world-centric map, picture x and y defining a cartographic map: x
points east, y points north and z points up.

	The switch from one another is a simple rotation (which the sample
implementation should provide, IMHO) but we should use one or the other,
in order to not find some models turned 90º with respect to others.

	* where will be the bones definition stored?

	* will non-manual LOD (vertex & face collapsing) be included? perhaps
as optionals, for the systems who use it?

	* will be use the "model" concept, on a layer above a "mesh" (1 model
-> N meshes)?

	* shall we be able to reference sections on other files?

	* [your opinion on other issues goes here... :)]


	I hope I've not left any item out, please add them if so.

	Regards

	Aglanor