[Plib-devel] Double-sided material fix to 3DS loader for 1.2

[Paolo L. <p.l...@ci...>]

Dear Steve & Per,

hoping to be in time for 1.2, here is the result of further bug-fixing on the 3DS loader.
This fixes the management of double-sided material tris:

function parse_face_materials():
...
      if (is_ds) {
        num_texcrds = 6;
        sgCopyVec2( texcrds[texcrd_count + 3], texcrd_list[ vertex_index[v1] ] );
        sgCopyVec2( texcrds[texcrd_count + 4], texcrd_list[ vertex_index[v3] ] );
        sgCopyVec2( texcrds[texcrd_count + 5], texcrd_list[ vertex_index[v2] ] );
      }
...
instead of the index sequence v1, v2, v3. This is now in agreement with what done to vertices/normals some code line below.


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Paolo Leoncini				phone:  +39 (0823) 623134
Scientific Visualization Group			fax:    +39 (0823) 623126
CIRA - Italian Center for Aerospace Research	e-mail: p.l...@ci...
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