99 lines
4.3 KiB
C
99 lines
4.3 KiB
C
|
// Redistribution and use in source and binary forms, with or without
|
||
|
|
// modification, are permitted provided that the following conditions
|
||
|
|
// are met:
|
||
|
|
// * Redistributions of source code must retain the above copyright
|
||
|
|
// notice, this list of conditions and the following disclaimer.
|
||
|
|
// * Redistributions in binary form must reproduce the above copyright
|
||
|
|
// notice, this list of conditions and the following disclaimer in the
|
||
|
|
// documentation and/or other materials provided with the distribution.
|
||
|
|
// * Neither the name of NVIDIA CORPORATION nor the names of its
|
||
|
|
// contributors may be used to endorse or promote products derived
|
||
|
|
// from this software without specific prior written permission.
|
||
|
|
//
|
||
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
|
||
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||
|
|
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
||
|
|
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||
|
|
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||
|
|
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
||
|
|
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
//
|
||
|
|
// Copyright (c) 2008-2025 NVIDIA Corporation. All rights reserved.
|
||
|
|
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
|
||
|
|
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
|
||
|
|
|
||
|
|
#ifndef GU_AABBTREE_NODE_H
|
||
|
|
#define GU_AABBTREE_NODE_H
|
||
|
|
|
||
|
|
#include "common/PxPhysXCommonConfig.h"
|
||
|
|
#include "foundation/PxBounds3.h"
|
||
|
|
#include "foundation/PxVecMath.h"
|
||
|
|
#include "foundation/PxUserAllocated.h"
|
||
|
|
|
||
|
|
namespace physx
|
||
|
|
{
|
||
|
|
using namespace aos;
|
||
|
|
|
||
|
|
namespace Gu
|
||
|
|
{
|
||
|
|
struct BVHNode : public PxUserAllocated
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
PX_FORCE_INLINE BVHNode() {}
|
||
|
|
PX_FORCE_INLINE ~BVHNode() {}
|
||
|
|
|
||
|
|
PX_FORCE_INLINE PxU32 isLeaf() const { return mData&1; }
|
||
|
|
PX_FORCE_INLINE const PxU32* getPrimitives(const PxU32* base) const { return base + (mData>>5); }
|
||
|
|
PX_FORCE_INLINE PxU32* getPrimitives(PxU32* base) { return base + (mData>>5); }
|
||
|
|
PX_FORCE_INLINE PxU32 getPrimitiveIndex() const { return mData>>5; }
|
||
|
|
PX_FORCE_INLINE PxU32 getNbPrimitives() const { return (mData>>1)&15; }
|
||
|
|
PX_FORCE_INLINE PxU32 getPosIndex() const { return mData>>1; }
|
||
|
|
PX_FORCE_INLINE PxU32 getNegIndex() const { return (mData>>1) + 1; }
|
||
|
|
PX_FORCE_INLINE const BVHNode* getPos(const BVHNode* base) const { return base + (mData>>1); }
|
||
|
|
PX_FORCE_INLINE const BVHNode* getNeg(const BVHNode* base) const { const BVHNode* P = getPos(base); return P ? P+1 : NULL; }
|
||
|
|
PX_FORCE_INLINE BVHNode* getPos(BVHNode* base) { return base + (mData >> 1); }
|
||
|
|
PX_FORCE_INLINE BVHNode* getNeg(BVHNode* base) { BVHNode* P = getPos(base); return P ? P + 1 : NULL; }
|
||
|
|
|
||
|
|
PX_FORCE_INLINE PxU32 getNbRuntimePrimitives() const { return (mData>>1)&15; }
|
||
|
|
PX_FORCE_INLINE void setNbRunTimePrimitives(PxU32 val)
|
||
|
|
{
|
||
|
|
PX_ASSERT(val<16);
|
||
|
|
PxU32 data = mData & ~(15<<1);
|
||
|
|
data |= val<<1;
|
||
|
|
mData = data;
|
||
|
|
}
|
||
|
|
|
||
|
|
PX_FORCE_INLINE void getAABBCenterExtentsV(Vec3V* center, Vec3V* extents) const
|
||
|
|
{
|
||
|
|
const Vec4V minV = V4LoadU(&mBV.minimum.x);
|
||
|
|
const Vec4V maxV = V4LoadU(&mBV.maximum.x);
|
||
|
|
|
||
|
|
const float half = 0.5f;
|
||
|
|
const FloatV halfV = FLoad(half);
|
||
|
|
|
||
|
|
*extents = Vec3V_From_Vec4V(V4Scale(V4Sub(maxV, minV), halfV));
|
||
|
|
*center = Vec3V_From_Vec4V(V4Scale(V4Add(maxV, minV), halfV));
|
||
|
|
}
|
||
|
|
|
||
|
|
PX_FORCE_INLINE void getAABBCenterExtentsV2(Vec3V* center, Vec3V* extents) const
|
||
|
|
{
|
||
|
|
const Vec4V minV = V4LoadU(&mBV.minimum.x);
|
||
|
|
const Vec4V maxV = V4LoadU(&mBV.maximum.x);
|
||
|
|
|
||
|
|
*extents = Vec3V_From_Vec4V(V4Sub(maxV, minV));
|
||
|
|
*center = Vec3V_From_Vec4V(V4Add(maxV, minV));
|
||
|
|
}
|
||
|
|
|
||
|
|
PxBounds3 mBV; // Global bounding-volume enclosing all the node-related primitives
|
||
|
|
PxU32 mData; // 27 bits node or prim index|4 bits #prims|1 bit leaf
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace Gu
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // GU_AABBTREE_NODE_H
|