In a simple test with ~12000 verts, overall BGE startup time went from ~4.5 sec to a bit under a second.
- before adding each vert it did a check for a duplicates.
- Using RAS_Polygon verts can give a lot of duplicates because the verts also store UV's and normals.
- Was increasing the array one item at a time, now resize the array once.
- Use the blender mesh mvert array rather then RAS_TexVert's, so needed to include some DNA headers.
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