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Bounds: Overlap cone/plane.

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This commit is contained in:
Бранимир Караџић
2020-10-17 22:16:18 -07:00
parent 72b04e3913
commit 626ca46aa0
1 changed files with 23 additions and 4 deletions
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27
examples/common/bounds.cpp
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@@ -1478,8 +1478,7 @@ bool overlap(const Cone& _cone, const Aabb& _aabb)
bool overlap(const Cone& _cone, const Plane& _plane)
{
BX_UNUSED(_cone, _plane);
return false;
return overlap(_plane, _cone);
}
bool overlap(const Cone& _cone, const Triangle& _triangle)
@@ -1769,6 +1768,11 @@ bool overlap(const Obb& _obbA, const Obb& _obbB)
return false;
}
bool overlap(const Plane& _plane, const LineSegment& _line)
{
return isNearZero(distance(_plane, _line) );
}
bool overlap(const Plane& _plane, const Vec3& _pos)
{
return isNearZero(distance(_plane, _pos) );
@@ -1809,8 +1813,23 @@ bool overlap(const Plane& _plane, const Capsule& _capsule)
bool overlap(const Plane& _plane, const Cone& _cone)
{
BX_UNUSED(_plane, _cone);
return false;
const Vec3 axis = sub(_cone.pos, _cone.end);
const float len = length(axis);
const Vec3 dir = normalize(axis);
const Vec3 v1 = cross(_plane.normal, dir);
const Vec3 v2 = cross(v1, dir);
const float bb = len;
const float aa = _cone.radius;
const float cc = sqrt(square(aa) + square(bb) );
const Vec3 pos = add(add(_cone.end
, mul(dir, len * bb/cc) )
, mul(v2, len * aa/cc)
);
return overlap(_plane, LineSegment{pos, _cone.end});
}
bool overlap(const Plane& _plane, const Disk& _disk)