feat(physics): wire physx sdk into build

engine/third_party/physx/include/PxArrayConverter.h

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+// 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 PX_ARRAY_CONVERTER_H
+#define PX_ARRAY_CONVERTER_H
+
+#include "cudamanager/PxCudaContext.h"
+#include "cudamanager/PxCudaContextManager.h"
+
+#include "foundation/PxSimpleTypes.h"
+#include "foundation/PxVec4.h"
+
+
+#if !PX_DOXYGEN
+namespace physx
+{
+#endif
+
+#if PX_SUPPORT_GPU_PHYSX
+
+	/**
+	\brief Utility class to convert gpu arrays to a different memory layout
+	*/
+	class PxArrayConverter
+	{
+	public:
+		/**
+		\brief Helper function to merge two separate PxVec4 arrays into one interleaved PxVec3 array
+		\param[in] verticesD The vertices device memory buffer
+		\param[in] normalsD The normals device memory buffer
+		\param[in] length The number of vertices and normals
+		\param[out] interleavedResultBufferD The resulting interleaved buffer containing 2*length elements with the format vertex0, normal0, vertex1, normal1...
+		\param[in] stream The cuda stream on which the conversion is processed
+		*/		
+		virtual void interleaveGpuBuffers(const PxVec4* verticesD, const PxVec4* normalsD, PxU32 length, PxVec3* interleavedResultBufferD, CUstream stream) = 0;
+
+		/**
+		\brief Destructor
+		*/
+		virtual ~PxArrayConverter() {}
+	};
+
+#endif	
+
+#if !PX_DOXYGEN
+} // namespace physx
+#endif
+
+#endif