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Improved contains_hexahedron function little bit

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This commit is contained in:
Gyedo Jeon 2009-08-21 17:10:27 +00:00
parent ae8c460b1b
commit 900fe8b650
1 changed files with 16 additions and 8 deletions
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24
panda/src/mathutil/boundingHexahedron.cxx
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@ -419,20 +419,23 @@ contains_hexahedron(const BoundingHexahedron *hexahedron) const {
// completely outside of the hexahedron.
return IF_no_intersection;
} else if (dist < 0.0f && dist2 < radius2) {
} else {/*if (dist < 0.0f && dist2 < radius2) {*/
// The sphere is not completely behind this plane, but some of
// it is.
// Look a little closer.
bool all_in = true;
for (int i = 0; i < 8 && all_in; ++i) {
if (p.dist_to_plane(hexahedron->get_point(i)) < 0.0f) {
unsigned points_out = 0;
for (int i = 0; i < 8; ++i) {
if (p.dist_to_plane(hexahedron->get_point(i)) > 0.0f) {
// This point is outside the plane.
all_in = false;
++points_out;
}
}
if (!all_in) {
if (points_out != 0) {
if (points_out == 8) {
return IF_no_intersection;
}
result &= ~IF_all;
}
}
@ -464,8 +467,6 @@ set_planes() {
_planes[4] = Planef(_points[3], _points[4], _points[0]);
_planes[5] = Planef(_points[4], _points[7], _points[6]);
nassertv(_planes[0].dist_to_plane(_centroid) < 0);
} else {
// No, a perfectly sane universe.
_planes[1] = Planef(_points[0], _points[1], _points[5]);
@ -474,6 +475,13 @@ set_planes() {
_planes[4] = Planef(_points[3], _points[0], _points[4]);
_planes[5] = Planef(_points[4], _points[6], _points[7]);
}
nassertv(_planes[0].dist_to_plane(_centroid) <= 0.001);
nassertv(_planes[1].dist_to_plane(_centroid) <= 0.001);
nassertv(_planes[2].dist_to_plane(_centroid) <= 0.001);
nassertv(_planes[3].dist_to_plane(_centroid) <= 0.001);
nassertv(_planes[4].dist_to_plane(_centroid) <= 0.001);
nassertv(_planes[5].dist_to_plane(_centroid) <= 0.001);
}
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