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Diffstat (limited to 'thirdparty/bullet/src/Bullet3Geometry/b3AabbUtil.h')
-rw-r--r-- | thirdparty/bullet/src/Bullet3Geometry/b3AabbUtil.h | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/thirdparty/bullet/src/Bullet3Geometry/b3AabbUtil.h b/thirdparty/bullet/src/Bullet3Geometry/b3AabbUtil.h deleted file mode 100644 index 4c72d5bbfc..0000000000 --- a/thirdparty/bullet/src/Bullet3Geometry/b3AabbUtil.h +++ /dev/null @@ -1,232 +0,0 @@ -/* -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 B3_AABB_UTIL2 -#define B3_AABB_UTIL2 - -#include "Bullet3Common/b3Transform.h" -#include "Bullet3Common/b3Vector3.h" -#include "Bullet3Common/b3MinMax.h" - - - -B3_FORCE_INLINE void b3AabbExpand (b3Vector3& aabbMin, - b3Vector3& aabbMax, - const b3Vector3& expansionMin, - const b3Vector3& expansionMax) -{ - aabbMin = aabbMin + expansionMin; - aabbMax = aabbMax + expansionMax; -} - -/// conservative test for overlap between two aabbs -B3_FORCE_INLINE bool b3TestPointAgainstAabb2(const b3Vector3 &aabbMin1, const b3Vector3 &aabbMax1, - const b3Vector3 &point) -{ - bool overlap = true; - overlap = (aabbMin1.getX() > point.getX() || aabbMax1.getX() < point.getX()) ? false : overlap; - overlap = (aabbMin1.getZ() > point.getZ() || aabbMax1.getZ() < point.getZ()) ? false : overlap; - overlap = (aabbMin1.getY() > point.getY() || aabbMax1.getY() < point.getY()) ? false : overlap; - return overlap; -} - - -/// conservative test for overlap between two aabbs -B3_FORCE_INLINE bool b3TestAabbAgainstAabb2(const b3Vector3 &aabbMin1, const b3Vector3 &aabbMax1, - const b3Vector3 &aabbMin2, const b3Vector3 &aabbMax2) -{ - bool overlap = true; - overlap = (aabbMin1.getX() > aabbMax2.getX() || aabbMax1.getX() < aabbMin2.getX()) ? false : overlap; - overlap = (aabbMin1.getZ() > aabbMax2.getZ() || aabbMax1.getZ() < aabbMin2.getZ()) ? false : overlap; - overlap = (aabbMin1.getY() > aabbMax2.getY() || aabbMax1.getY() < aabbMin2.getY()) ? false : overlap; - return overlap; -} - -/// conservative test for overlap between triangle and aabb -B3_FORCE_INLINE bool b3TestTriangleAgainstAabb2(const b3Vector3 *vertices, - const b3Vector3 &aabbMin, const b3Vector3 &aabbMax) -{ - const b3Vector3 &p1 = vertices[0]; - const b3Vector3 &p2 = vertices[1]; - const b3Vector3 &p3 = vertices[2]; - - if (b3Min(b3Min(p1[0], p2[0]), p3[0]) > aabbMax[0]) return false; - if (b3Max(b3Max(p1[0], p2[0]), p3[0]) < aabbMin[0]) return false; - - if (b3Min(b3Min(p1[2], p2[2]), p3[2]) > aabbMax[2]) return false; - if (b3Max(b3Max(p1[2], p2[2]), p3[2]) < aabbMin[2]) return false; - - if (b3Min(b3Min(p1[1], p2[1]), p3[1]) > aabbMax[1]) return false; - if (b3Max(b3Max(p1[1], p2[1]), p3[1]) < aabbMin[1]) return false; - return true; -} - - -B3_FORCE_INLINE int b3Outcode(const b3Vector3& p,const b3Vector3& halfExtent) -{ - return (p.getX() < -halfExtent.getX() ? 0x01 : 0x0) | - (p.getX() > halfExtent.getX() ? 0x08 : 0x0) | - (p.getY() < -halfExtent.getY() ? 0x02 : 0x0) | - (p.getY() > halfExtent.getY() ? 0x10 : 0x0) | - (p.getZ() < -halfExtent.getZ() ? 0x4 : 0x0) | - (p.getZ() > halfExtent.getZ() ? 0x20 : 0x0); -} - - - -B3_FORCE_INLINE bool b3RayAabb2(const b3Vector3& rayFrom, - const b3Vector3& rayInvDirection, - const unsigned int raySign[3], - const b3Vector3 bounds[2], - b3Scalar& tmin, - b3Scalar lambda_min, - b3Scalar lambda_max) -{ - b3Scalar tmax, tymin, tymax, tzmin, tzmax; - tmin = (bounds[raySign[0]].getX() - rayFrom.getX()) * rayInvDirection.getX(); - tmax = (bounds[1-raySign[0]].getX() - rayFrom.getX()) * rayInvDirection.getX(); - tymin = (bounds[raySign[1]].getY() - rayFrom.getY()) * rayInvDirection.getY(); - tymax = (bounds[1-raySign[1]].getY() - rayFrom.getY()) * rayInvDirection.getY(); - - if ( (tmin > tymax) || (tymin > tmax) ) - return false; - - if (tymin > tmin) - tmin = tymin; - - if (tymax < tmax) - tmax = tymax; - - tzmin = (bounds[raySign[2]].getZ() - rayFrom.getZ()) * rayInvDirection.getZ(); - tzmax = (bounds[1-raySign[2]].getZ() - rayFrom.getZ()) * rayInvDirection.getZ(); - - if ( (tmin > tzmax) || (tzmin > tmax) ) - return false; - if (tzmin > tmin) - tmin = tzmin; - if (tzmax < tmax) - tmax = tzmax; - return ( (tmin < lambda_max) && (tmax > lambda_min) ); -} - -B3_FORCE_INLINE bool b3RayAabb(const b3Vector3& rayFrom, - const b3Vector3& rayTo, - const b3Vector3& aabbMin, - const b3Vector3& aabbMax, - b3Scalar& param, b3Vector3& normal) -{ - b3Vector3 aabbHalfExtent = (aabbMax-aabbMin)* b3Scalar(0.5); - b3Vector3 aabbCenter = (aabbMax+aabbMin)* b3Scalar(0.5); - b3Vector3 source = rayFrom - aabbCenter; - b3Vector3 target = rayTo - aabbCenter; - int sourceOutcode = b3Outcode(source,aabbHalfExtent); - int targetOutcode = b3Outcode(target,aabbHalfExtent); - if ((sourceOutcode & targetOutcode) == 0x0) - { - b3Scalar lambda_enter = b3Scalar(0.0); - b3Scalar lambda_exit = param; - b3Vector3 r = target - source; - int i; - b3Scalar normSign = 1; - b3Vector3 hitNormal = b3MakeVector3(0,0,0); - int bit=1; - - for (int j=0;j<2;j++) - { - for (i = 0; i != 3; ++i) - { - if (sourceOutcode & bit) - { - b3Scalar lambda = (-source[i] - aabbHalfExtent[i]*normSign) / r[i]; - if (lambda_enter <= lambda) - { - lambda_enter = lambda; - hitNormal.setValue(0,0,0); - hitNormal[i] = normSign; - } - } - else if (targetOutcode & bit) - { - b3Scalar lambda = (-source[i] - aabbHalfExtent[i]*normSign) / r[i]; - b3SetMin(lambda_exit, lambda); - } - bit<<=1; - } - normSign = b3Scalar(-1.); - } - if (lambda_enter <= lambda_exit) - { - param = lambda_enter; - normal = hitNormal; - return true; - } - } - return false; -} - - - -B3_FORCE_INLINE void b3TransformAabb(const b3Vector3& halfExtents, b3Scalar margin,const b3Transform& t,b3Vector3& aabbMinOut,b3Vector3& aabbMaxOut) -{ - b3Vector3 halfExtentsWithMargin = halfExtents+b3MakeVector3(margin,margin,margin); - b3Matrix3x3 abs_b = t.getBasis().absolute(); - b3Vector3 center = t.getOrigin(); - b3Vector3 extent = halfExtentsWithMargin.dot3( abs_b[0], abs_b[1], abs_b[2] ); - aabbMinOut = center - extent; - aabbMaxOut = center + extent; -} - - -B3_FORCE_INLINE void b3TransformAabb(const b3Vector3& localAabbMin,const b3Vector3& localAabbMax, b3Scalar margin,const b3Transform& trans,b3Vector3& aabbMinOut,b3Vector3& aabbMaxOut) -{ - //b3Assert(localAabbMin.getX() <= localAabbMax.getX()); - //b3Assert(localAabbMin.getY() <= localAabbMax.getY()); - //b3Assert(localAabbMin.getZ() <= localAabbMax.getZ()); - b3Vector3 localHalfExtents = b3Scalar(0.5)*(localAabbMax-localAabbMin); - localHalfExtents+=b3MakeVector3(margin,margin,margin); - - b3Vector3 localCenter = b3Scalar(0.5)*(localAabbMax+localAabbMin); - b3Matrix3x3 abs_b = trans.getBasis().absolute(); - b3Vector3 center = trans(localCenter); - b3Vector3 extent = localHalfExtents.dot3( abs_b[0], abs_b[1], abs_b[2] ); - aabbMinOut = center-extent; - aabbMaxOut = center+extent; -} - -#define B3_USE_BANCHLESS 1 -#ifdef B3_USE_BANCHLESS - //This block replaces the block below and uses no branches, and replaces the 8 bit return with a 32 bit return for improved performance (~3x on XBox 360) - B3_FORCE_INLINE unsigned b3TestQuantizedAabbAgainstQuantizedAabb(const unsigned short int* aabbMin1,const unsigned short int* aabbMax1,const unsigned short int* aabbMin2,const unsigned short int* aabbMax2) - { - return static_cast<unsigned int>(b3Select((unsigned)((aabbMin1[0] <= aabbMax2[0]) & (aabbMax1[0] >= aabbMin2[0]) - & (aabbMin1[2] <= aabbMax2[2]) & (aabbMax1[2] >= aabbMin2[2]) - & (aabbMin1[1] <= aabbMax2[1]) & (aabbMax1[1] >= aabbMin2[1])), - 1, 0)); - } -#else - B3_FORCE_INLINE bool b3TestQuantizedAabbAgainstQuantizedAabb(const unsigned short int* aabbMin1,const unsigned short int* aabbMax1,const unsigned short int* aabbMin2,const unsigned short int* 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; - } -#endif //B3_USE_BANCHLESS - -#endif //B3_AABB_UTIL2 - - |