/*
==================
AddMapTriToAreas
Used for curves and inlined models
==================
*/
void AddMapTriToAreas( mapTri_t* tri, uEntity_t* e )
{
int area;
idWinding* w;
// skip degenerate triangles from pinched curves
if( MapTriArea( tri ) <= 0 )
{
return;
}
if( dmapGlobals.fullCarve )
{
// always fragment into areas
w = WindingForTri( tri );
ClipTriIntoTree_r( w, tri, e, e->tree->headnode );
return;
}
w = WindingForTri( tri );
area = CheckWindingInAreas_r( w, e->tree->headnode );
delete w;
if( area == -1 )
{
return;
}
if( area >= 0 )
{
mapTri_t* newTri;
idPlane plane;
int planeNum;
textureVectors_t texVec;
// put in single area
newTri = CopyMapTri( tri );
newTri->next = NULL;
PlaneForTri( tri, plane );
planeNum = FindFloatPlane( plane );
TexVecForTri( &texVec, newTri );
AddTriListToArea( e, newTri, planeNum, area, &texVec );
}
else
{
// fragment into areas
w = WindingForTri( tri );
ClipTriIntoTree_r( w, tri, e, e->tree->headnode );
}
}
/*
===============
RemoveBadTris
Return a new list with any zero or negative area triangles removed
===============
*/
mapTri_t *RemoveBadTris( const mapTri_t *list ) {
mapTri_t *newList;
mapTri_t *copy;
const mapTri_t *tri;
newList = NULL;
for ( tri = list ; tri ; tri = tri->next ) {
if ( MapTriArea( tri ) > 0 ) {
copy = CopyMapTri( tri );
copy->next = newList;
newList = copy;
}
}
return newList;
}