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Added Pierre Terdiman's 'internal object' optimization to improve performance for separating axis tests.

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Make the winding consistent in btConvexHullComputer (and related fixes in btPolyhedralConvexShape), thanks to Ole!
Some fixes in the btPolyhedralContactClipping implementation (never report a penetration deeper than GJK/EPA found, to avoid issues due to its approximate contact normal directions)
Properly visualize btPolyhedralConvexHullShape that have a  btConvexPolyhedron (by calling initializePolyhedralFeatures() method)
This commit is contained in:
erwin.coumans
2011-04-15 18:37:28 +00:00
parent 7d37b3c472
commit 1b305562be
12 changed files with 488 additions and 209 deletions
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34
src/BulletCollision/CollisionShapes/btPolyhedralConvexShape.cpp
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@@ -105,9 +105,9 @@ bool btPolyhedralConvexShape::initializePolyhedralFeatures()
{
faceNormals[i] = edges[0].cross(edges[1]);
faceNormals[i].normalize();
m_polyhedron->m_faces[i].m_plane[0] = -faceNormals[i].getX();
m_polyhedron->m_faces[i].m_plane[1] = -faceNormals[i].getY();
m_polyhedron->m_faces[i].m_plane[2] = -faceNormals[i].getZ();
m_polyhedron->m_faces[i].m_plane[0] = faceNormals[i].getX();
m_polyhedron->m_faces[i].m_plane[1] = faceNormals[i].getY();
m_polyhedron->m_faces[i].m_plane[2] = faceNormals[i].getZ();
m_polyhedron->m_faces[i].m_plane[3] = planeEq;
}
@@ -125,35 +125,11 @@ bool btPolyhedralConvexShape::initializePolyhedralFeatures()
planeEq=eq;
}
}
m_polyhedron->m_faces[i].m_plane[3] = planeEq;
m_polyhedron->m_faces[i].m_plane[3] = -planeEq;
}
if (m_polyhedron->m_faces.size() && conv.vertices.size())
{
for (int f=0;f<m_polyhedron->m_faces.size();f++)
{
btVector3 planeNormal(m_polyhedron->m_faces[f].m_plane[0],m_polyhedron->m_faces[f].m_plane[1],m_polyhedron->m_faces[f].m_plane[2]);
btScalar planeEq = m_polyhedron->m_faces[f].m_plane[3];
btVector3 supVec = localGetSupportingVertex(-planeNormal);
if (supVec.dot(planeNormal)<planeEq)
{
m_polyhedron->m_faces[f].m_plane[0] *= -1;
m_polyhedron->m_faces[f].m_plane[1] *= -1;
m_polyhedron->m_faces[f].m_plane[2] *= -1;
m_polyhedron->m_faces[f].m_plane[3] *= -1;
int numVerts = m_polyhedron->m_faces[f].m_indices.size();
for (int v=0;v<numVerts/2;v++)
{
btSwap(m_polyhedron->m_faces[f].m_indices[v],m_polyhedron->m_faces[f].m_indices[numVerts-1-v]);
}
}
}
}