mirrors/bgfx
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Cleanup.

Browse Source
This commit is contained in:
Бранимир Караџић 2019-05-09 20:06:24 -07:00
parent 285936a0d0
commit 8c35cc2dea
1 changed files with 7 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
examples/common/bounds.cpp
View File

@ -1248,44 +1248,16 @@ bool overlap(const Aabb& _aabb, const Sphere& _sphere)
return overlap(_sphere, _aabb);
}
uint32_t overlapTestMask(const Aabb& _aabbA, const Aabb& _aabbB)
{
/// Returns 0 is two AABB don't overlap, otherwise returns flags of overlap
/// test.
const uint32_t ltMinX = _aabbA.max.x < _aabbB.min.x;
const uint32_t gtMaxX = _aabbA.min.x > _aabbB.max.x;
const uint32_t ltMinY = _aabbA.max.y < _aabbB.min.y;
const uint32_t gtMaxY = _aabbA.min.y > _aabbB.max.y;
const uint32_t ltMinZ = _aabbA.max.z < _aabbB.min.z;
const uint32_t gtMaxZ = _aabbA.min.z > _aabbB.max.z;
return 0
| (ltMinX << 0)
| (gtMaxX << 1)
| (ltMinY << 2)
| (gtMaxY << 3)
| (ltMinZ << 4)
| (gtMaxZ << 5)
;
}
bool overlap(const Aabb& _aabbA, const Aabb& _aabbB)
{
#if 0
return 0 != overlapTestMask(_aabbA, _aabbB);
#else
const Vec3 ac = getCenter(_aabbA);
const Vec3 bc = getCenter(_aabbB);
const Vec3 abc = bx::abs(sub(ac, bc) );
const Vec3 ae = getExtents(_aabbA);
const Vec3 be = getExtents(_aabbB);
const Vec3 abe = add(ae, be);
return abc.x <= abe.x
&& abc.y <= abe.y
&& abc.z <= abe.z
return true
&& _aabbA.max.x > _aabbB.min.x
&& _aabbB.max.x > _aabbA.min.x
&& _aabbA.max.y > _aabbB.min.y
&& _aabbB.max.y > _aabbA.min.y
&& _aabbA.max.z > _aabbB.min.z
&& _aabbB.max.z > _aabbA.min.z
;
#endif // 0
}
bool overlap(const Aabb& _aabb, const Plane& _plane)