void SetPlane(double *p1, double *p2, double *p3, double *pln)
{
// set plane through points p1, p2, p3
double cen[3];
TriangleNormal(p1, p2, p3, pln);
TriangleCenter(p1, p2, p3, cen);
pln[3] = -DotProduct(cen, pln);
}
static void ConvertWorldBrushesToPhysCollide( CUtlVector<CPhysCollisionEntry *> &collisionList, float shrinkSize, float mergeTolerance, int contentsMask )
{
CPlaneList planes( shrinkSize, mergeTolerance );
planes.m_contentsMask = contentsMask;
VisitLeaves_r( planes, dmodels[0].headnode );
planes.AddBrushes();
int count = planes.m_convex.Count();
if ( count )
{
CPhysCollide *pCollide = physcollision->ConvertConvexToCollide( planes.m_convex.Base(), count );
ICollisionQuery *pQuery = physcollision->CreateQueryModel( pCollide );
int convex = pQuery->ConvexCount();
for ( int i = 0; i < convex; i++ )
{
int triCount = pQuery->TriangleCount( i );
int brushIndex = pQuery->GetGameData( i );
Vector points[3];
for ( int j = 0; j < triCount; j++ )
{
pQuery->GetTriangleVerts( i, j, points );
Vector normal = TriangleNormal( points[0], points[1], points[2] );
dbrushside_t *pside = FindBrushSide( brushIndex, normal );
if ( pside->texinfo != TEXINFO_NODE )
{
int prop = g_SurfaceProperties[texinfo[pside->texinfo].texdata];
pQuery->SetTriangleMaterialIndex( i, j, RemapWorldMaterial( prop ) );
}
}
}
physcollision->DestroyQueryModel( pQuery );
pQuery = NULL;
collisionList.AddToTail( new CPhysCollisionEntryStaticSolid( pCollide, contentsMask ) );
}
}
void CMesh::CalculateVertexAverageNormals(void)
{
unsigned long i;
for (i=0; i<num_vertices; ++i)
vertices[i].normal.Set(0.0f, 0.0f, 0.0f);
for (i=0; i<num_faces; ++i)
{
unsigned long *iv=indices+i*3;
CVector3D N=TriangleNormal(
vertices[iv[0]].position,
vertices[iv[1]].position,
vertices[iv[2]].position);
vertices[iv[0]].normal+=N;
vertices[iv[1]].normal+=N;
vertices[iv[2]].normal+=N;
}
for (i=0; i<num_vertices; ++i)
vertices[i].normal.Normalize();
}
