-void Mod_BuildNormals(int numverts, int numtriangles, const float *vertex3f, const int *elements, float *normal3f);
-void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex, const float *texcoord, const int *elements, float *svectors, float *tvectors, float *normals);
+void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f);
+void Mod_BuildTextureVectorsAndNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex, const float *texcoord, const int *elements, float *svectors, float *tvectors, float *normals);