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diff --git a/APEX_1.4/shared/external/include/SampleApexResourceCallback.h b/APEX_1.4/shared/external/include/SampleApexResourceCallback.h
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+++ b/APEX_1.4/shared/external/include/SampleApexResourceCallback.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2008-2015, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * NVIDIA CORPORATION and its licensors retain all intellectual property
+ * and proprietary rights in and to this software, related documentation
+ * and any modifications thereto.  Any use, reproduction, disclosure or
+ * distribution of this software and related documentation without an express
+ * license agreement from NVIDIA CORPORATION is strictly prohibited.
+ */
+
+#ifndef SAMPLE_APEX_RESOURCE_CALLBACK_H
+#define SAMPLE_APEX_RESOURCE_CALLBACK_H
+
+#include <ApexDefs.h>
+#include <ApexSDK.h>
+#include <PxFiltering.h>
+#include <ResourceCallback.h>
+#include <PxFileBuf.h>
+#include "Find.h"
+#include <SampleAsset.h>
+#include <vector>
+
+#pragma warning(push)
+#pragma warning(disable:4512)
+
+class FilterBits; // forward reference the filter bits class
+
+namespace nvidia
+{
+namespace apex
+{
+class ApexSDK;
+#if APEX_USE_PARTICLES
+class ModuleParticles;
+#endif
+}
+}
+
+namespace SampleRenderer
+{
+class Renderer;
+}
+
+namespace SampleFramework
+{
+class SampleAssetManager;
+}
+
+// TODO: DISABLE ME!!!
+#define WORK_AROUND_BROKEN_ASSET_PATHS 1
+
+enum SampleAssetFileType
+{
+	XML_ASSET,
+	BIN_ASSET,
+	ANY_ASSET,
+};
+
+class SampleApexResourceCallback : public nvidia::apex::ResourceCallback
+{
+public:
+	SampleApexResourceCallback(SampleRenderer::Renderer& renderer, SampleFramework::SampleAssetManager& assetManager);
+	virtual				   ~SampleApexResourceCallback(void);
+
+	void					addResourceSearchPath(const char* path);
+	void					removeResourceSearchPath(const char* path);
+	void					clearResourceSearchPaths();
+
+	void					registerSimulationFilterData(const char* name, const physx::PxFilterData& simulationFilterData);
+	void					registerPhysicalMaterial(const char* name, physx::PxMaterialTableIndex physicalMaterial);
+
+	void					registerGroupsMask64(const char* name, nvidia::apex::GroupsMask64& groupsMask);
+
+	void					setApexSupport(nvidia::apex::ApexSDK& apexSDK);
+
+	physx::PxFileBuf*   	findApexAsset(const char* assetName);
+	void					findFiles(const char* dir, nvidia::apex::FileHandler& handler);
+
+	void					setAssetPreference(SampleAssetFileType pref)
+	{
+		m_assetPreference = pref;
+	}
+
+	static bool				xmlFileExtension(const char* assetName);
+	static const char*		getFileExtension(const char* assetName);
+
+private:
+	SampleFramework::SampleAsset*	findSampleAsset(const char* assetName, SampleFramework::SampleAsset::Type type);
+
+#if WORK_AROUND_BROKEN_ASSET_PATHS
+	const char*				mapHackyPath(const char* path);
+#endif
+
+public:
+	virtual void*			requestResource(const char* nameSpace, const char* name);
+	virtual void			releaseResource(const char* nameSpace, const char* name, void* resource);
+
+	bool					doesFileExist(const char* filename, const char* ext);
+	bool					doesFileExist(const char* filename);
+	bool					isFileReadable(const char* fullPath);
+
+protected:
+	SampleRenderer::Renderer&				m_renderer;
+	SampleFramework::SampleAssetManager&	m_assetManager;
+	std::vector<char*>						m_searchPaths;
+	std::vector<physx::PxFilterData>		m_FilterDatas;
+	FilterBits								*m_FilterBits;
+
+	std::vector<nvidia::apex::GroupsMask64>	m_nxGroupsMask64s;
+#if APEX_USE_PARTICLES
+	nvidia::apex::ModuleParticles*			mModuleParticles;
+#endif
+	nvidia::apex::ApexSDK*					m_apexSDK;
+	uint32_t							m_numGets;
+	SampleAssetFileType						m_assetPreference;
+};
+
+#pragma warning(pop)
+
+#endif // SAMPLE_APEX_RESOURCE_CALLBACK_H