Q3Polygon_GetVertexAttributeSet

[Roger H. <rog...@mi...>]

Firstly let me say I am using a one or two year old version of Quesa  
so its possible a suitable routine has been added since.

I want to quickly scan through all the vertices of an object to see if  
they ALL have a diffuse colour attribute, which means that setting the  
objects own diffuse colour will have no effect, so the user option  
should be greyed out.

I don't think there is any way of doing this on a geometry object so I  
have to split off each type of object.

For a polygon there is a useful routine  
Q3Polygon_GetVertexAttributeSet, which takes the object, an index and  
an attribute set. Trouble is, I can't find a simple routine which  
tells me the maximum index. Of course I can get the TQ3PolygonData and  
read it from there, but not only is that slow, if I get that I can  
read the vertex array directly so don't need  
Q3Polygon_GetVertexAttributeSet. Am I missing something or is this  
just silly design?

Roger Holmes