Few quick questions about vertex attributes, also tokamak

Blitz3D Forums/Blitz3D Programming/Few quick questions about vertex attributes, also tokamak

1. If I use VertexColor() on a vertex to set its RGB, then use VertexRed() to extract the info -- is it screwed up in 16-bit mode? Or can I expect to get the exact same figure back? (I want to use it to store information to extract later, rather than set a colour.)

2. Can vertex normals be set to any floating point number, or do they cap at 1 (or -1)? Does the system scale them back to cap the highest at 1, since the NXYZ attributes form a vector? (The same reason, I want to use them to store information for later retrieval.)

And in Tokamak:

3. Does it get too much with complex items with lots of vertices? Can you only use convex meshes?

4. Can you assign only SOME of the vertices in a mesh as tokamak vertices (ie, once you specify a mesh as a tokamak object, do ALL verts react to collision whether you want them to or not?)