//! Gets all triangles which have or may have contact with a 3d line.
// new version: from user Piraaate
void COctreeTriangleSelector::getTriangles(triangle3df* triangles, SINT32 arraySize,
SINT32& outTriangleCount, const line3df& line,
const Matrix4* transform) const
{
#if 0
AxisAlignedBox box(line.start);
box.addInternalPoint(line.end);
// TODO: Could be optimized for line a little bit more.
COctreeTriangleSelector::getTriangles(triangles, arraySize, outTriangleCount,
box, transform);
#else
Matrix4 mat(Matrix4::ZERO);
Vector3 vectStartInv(line.start), vectEndInv(line.end);
if (SceneNode)
{
mat = SceneNode->getAbsoluteTransformation();
//mat.makeInverse();
mat = Matrix4::IDENTITY;
//mat.transformVect(vectStartInv, line.start);
//mat.transformVect(vectEndInv, line.end);
vectStartInv = mat.transformAffine(line.start);
vectEndInv = mat.transformAffine(line.end);
}
line3d<FLOAT32> invline(vectStartInv, vectEndInv);
//mat.makeIdentity();
mat = Matrix4::IDENTITY;
if (transform)
mat = (*transform);
if (SceneNode)
mat = SceneNode->getAbsoluteTransformation() * mat;//mat *= SceneNode->getAbsoluteTransformation();
SINT32 trianglesWritten = 0;
if (Root)
getTrianglesFromOctree(Root, trianglesWritten, arraySize, invline, &mat, triangles);
outTriangleCount = trianglesWritten;
#endif
}
//! Gets all triangles which have or may have contact with a 3d line.
// new version: from user Piraaate
void COctreeTriangleSelector::getTriangles(core::triangle3df* triangles, s32 arraySize,
s32& outTriangleCount, const core::line3d<f32>& line,
const core::matrix4* transform) const
{
#if 0
core::aabbox3d<f32> box(line.start);
box.addInternalPoint(line.end);
// TODO: Could be optimized for line a little bit more.
COctreeTriangleSelector::getTriangles(triangles, arraySize, outTriangleCount,
box, transform);
#else
core::matrix4 mat ( core::matrix4::EM4CONST_NOTHING );
core::vector3df vectStartInv ( line.start ), vectEndInv ( line.end );
if (SceneNode)
{
mat = SceneNode->getAbsoluteTransformation();
mat.makeInverse();
mat.transformVect(vectStartInv, line.start);
mat.transformVect(vectEndInv, line.end);
}
core::line3d<f32> invline(vectStartInv, vectEndInv);
mat.makeIdentity();
if (transform)
mat = (*transform);
if (SceneNode)
mat *= SceneNode->getAbsoluteTransformation();
s32 trianglesWritten = 0;
if (Root)
getTrianglesFromOctree(Root, trianglesWritten, arraySize, invline, &mat, triangles);
outTriangleCount = trianglesWritten;
#endif
}
