internal void reset()
{
m_degenerate = false;
setBarycentricCoordinates();
m_usedVertices = 0;//.reset();
}
public void reduceVertices( btUsageBitfield usedVerts )
{
if( ( m_numVertices >= 4 ) && ( usedVerts & btUsageBitfield.usedVertexD ) == 0 )
removeVertex( 3 );
if( ( m_numVertices >= 3 ) && ( usedVerts & btUsageBitfield.usedVertexC ) == 0 )
removeVertex( 2 );
if( ( m_numVertices >= 2 ) && ( usedVerts & btUsageBitfield.usedVertexB ) == 0 )
removeVertex( 1 );
if( ( m_numVertices >= 1 ) && ( usedVerts & btUsageBitfield.usedVertexA ) == 0 )
removeVertex( 0 );
}