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author | Erwin Coumans <blender@erwincoumans.com> | 2006-10-23 06:54:30 +0400 |
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committer | Erwin Coumans <blender@erwincoumans.com> | 2006-10-23 06:54:30 +0400 |
commit | 44d16f056215e6068f0b186a0ab766165cf3966e (patch) | |
tree | f0ad85e29c32563d1d4c1c46db4e2cd22f7f78dc /extern/bullet2/src/LinearMath/btAabbUtil2.h | |
parent | e459764b4b056959e354edca3868a91ff9bc272f (diff) |
Added refactored Bullet 2.x library. Important: these files are not part of the Blender build yet. First, the integration will be updated to make use of the new Bullet version. Then all build systems needs to be updated.
The refactoring didn't leave a single file the same, all filenames and classes have bt prefix, methodnames start with lowercase, a single headerfile can be included, and also a single include path.
Plan is to make use of this Bullet 2.x version in extern/bullet2 within the coming weeks, then extern/bullet can be discarded/ignored/content removed.
Diffstat (limited to 'extern/bullet2/src/LinearMath/btAabbUtil2.h')
-rw-r--r-- | extern/bullet2/src/LinearMath/btAabbUtil2.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/extern/bullet2/src/LinearMath/btAabbUtil2.h b/extern/bullet2/src/LinearMath/btAabbUtil2.h new file mode 100644 index 00000000000..1cc7d4ebdf2 --- /dev/null +++ b/extern/bullet2/src/LinearMath/btAabbUtil2.h @@ -0,0 +1,57 @@ +/* +Copyright (c) 2003-2006 Gino van den Bergen / Erwin Coumans http://continuousphysics.com/Bullet/ + +This software is provided 'as-is', without any express or implied warranty. +In no event will the authors be held liable for any damages arising from the use of this software. +Permission is granted to anyone to use this software for any purpose, +including commercial applications, and to alter it and redistribute it freely, +subject to the following restrictions: + +1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. +2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. +3. This notice may not be removed or altered from any source distribution. +*/ + + + +#ifndef AABB_UTIL2 +#define AABB_UTIL2 + +#include "LinearMath/btVector3.h" + +#define btMin(a,b) ((a < b ? a : b)) +#define btMax(a,b) ((a > b ? a : b)) + + +/// conservative test for overlap between two aabbs +SIMD_FORCE_INLINE bool TestAabbAgainstAabb2(const btVector3 &aabbMin1, const btVector3 &aabbMax1, + const btVector3 &aabbMin2, const btVector3 &aabbMax2) +{ + bool overlap = true; + overlap = (aabbMin1[0] > aabbMax2[0] || aabbMax1[0] < aabbMin2[0]) ? false : overlap; + overlap = (aabbMin1[2] > aabbMax2[2] || aabbMax1[2] < aabbMin2[2]) ? false : overlap; + overlap = (aabbMin1[1] > aabbMax2[1] || aabbMax1[1] < aabbMin2[1]) ? false : overlap; + return overlap; +} + +/// conservative test for overlap between triangle and aabb +SIMD_FORCE_INLINE bool TestTriangleAgainstAabb2(const btVector3 *vertices, + const btVector3 &aabbMin, const btVector3 &aabbMax) +{ + const btVector3 &p1 = vertices[0]; + const btVector3 &p2 = vertices[1]; + const btVector3 &p3 = vertices[2]; + + if (btMin(btMin(p1[0], p2[0]), p3[0]) > aabbMax[0]) return false; + if (btMax(btMax(p1[0], p2[0]), p3[0]) < aabbMin[0]) return false; + + if (btMin(btMin(p1[2], p2[2]), p3[2]) > aabbMax[2]) return false; + if (btMax(btMax(p1[2], p2[2]), p3[2]) < aabbMin[2]) return false; + + if (btMin(btMin(p1[1], p2[1]), p3[1]) > aabbMax[1]) return false; + if (btMax(btMax(p1[1], p2[1]), p3[1]) < aabbMin[1]) return false; + return true; +} + +#endif + |