- renderer currently uses links into tface structures that actually

are owned by mesh (or displistmesh)... this causes problems for
   adapting to systems that build tfaces on the fly. Added RE_findTFace
   function to allow allocating tfaces inside renderer itself.

source/blender/render/extern/include/render.h

@@ -191,6 +191,7 @@ void ramp_spec_result(float *specr, float *specg, float *specb, ShadeInput *shi)
 struct VlakRen *RE_findOrAddVlak(int nr);
 struct VertRen *RE_findOrAddVert(int nr);
 struct HaloRen *RE_findOrAddHalo(int nr);
+struct TFace *RE_findTFace(void);
 HaloRen *RE_inithalo(struct Material *ma, float *vec, float *vec1, float *orco, float hasize, 
 					float vectsize, int seed);