My suspicions lay in the library I was using to load texture data into OpenGL. To test this, I downloaded and integrated SOIL. So it seemed I could load in textures, but they were not mapped at all to the meshes.
Which made me realise I had left the texture mapping aspect of the SynMesh class, well, hanging. So going back over that was a simple affair, though I had to make an educated guess as to how the .3DS file's texture mapping data is actually organised in respect to polygons. It is, of course, the obvious answer, which is for each vertex in the vertex list, the texture vertex at the same relative position in the texture vertex list is that vertex's texture coordinate.
A little tweaking of SynMesh.render(), and various other spots in the demo code, and I was in business:
Bless my flesh!Note, the skin for the tree actually isn't finished. So that's a data thing, not a processing error. Very satisfying, after the endless battle with AllegroGL just to do basic texture mapping. Tsk tsk. Here's a lit screenshot, just for fun:
Trees of Bliss
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