/*****************************************************************************
*   "Irit" - the 3d polygonal solid modeller.				     *
*									     *
* Written by:  Gershon Elber				Ver 0.2, Aug. 1990   *
******************************************************************************
* General, visible to others, definitions of normal interpolation module.    *
*****************************************************************************/

#ifndef INTRNRML_H
#define INTRNRML_H

void UpdateVerticesNormals(PolygonStruct *PlList, PolygonStruct *OriginalPl);
int Colinear3Vertices(VertexStruct *V1, VertexStruct *V2, VertexStruct *V3);
void InterpNrmlBetweenTwo(VertexStruct *V, VertexStruct *V1, VertexStruct *V2);

#endif /* INTRNRML_H */