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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// SPDX-FileCopyrightText: Copyright (c) 2008-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
#ifndef PX_BROAD_PHASE_EXT_H
#define PX_BROAD_PHASE_EXT_H
#include "PxPhysXConfig.h"
#include "common/PxPhysXCommonConfig.h"
#if !PX_DOXYGEN
namespace physx
{
class PxBounds3;
#endif
class PxBroadPhaseExt
{
public:
/**
\brief Creates regions for PxSceneDesc, from a global box.
This helper simply subdivides the given global box into a 2D grid of smaller boxes. Each one of those smaller boxes
is a region of interest for the broadphase. There are nbSubdiv*nbSubdiv regions in the 2D grid. The function does not
subdivide along the given up axis.
This is the simplest setup one can use with PxBroadPhaseType::eMBP. A more sophisticated setup would try to cover
the game world with a non-uniform set of regions (i.e. not just a grid).
\param[out] regions Regions computed from the input global box
\param[in] globalBounds World-space box covering the game world
\param[in] nbSubdiv Grid subdivision level. The function will create nbSubdiv*nbSubdiv regions.
\param[in] upAxis Up axis (0 for X, 1 for Y, 2 for Z).
\return number of regions written out to the 'regions' array
\see PxSceneDesc PxBroadPhaseType
*/
static PxU32 createRegionsFromWorldBounds(PxBounds3* regions, const PxBounds3& globalBounds, PxU32 nbSubdiv, PxU32 upAxis=1);
};
#if !PX_DOXYGEN
} // namespace physx
#endif
#endif