update assimp lib

Engine/lib/assimp/code/AssetLib/USD/USDLoader.cpp

@@ -0,0 +1,124 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software 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 the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"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.
+----------------------------------------------------------------------
+*/
+
+/** @file  USDLoader.cpp
+ *  @brief Implementation of the USD importer class
+ */
+
+#ifndef ASSIMP_BUILD_NO_USD_IMPORTER
+#include <memory>
+
+// internal headers
+#include <assimp/ai_assert.h>
+#include <assimp/anim.h>
+#include <assimp/DefaultIOSystem.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/fast_atof.h>
+#include <assimp/Importer.hpp>
+#include <assimp/importerdesc.h>
+#include <assimp/IOStreamBuffer.h>
+#include <assimp/IOSystem.hpp>
+#include <assimp/scene.h>
+#include <assimp/StringUtils.h>
+#include <assimp/StreamReader.h>
+
+#include "USDLoader.h"
+#include "USDLoaderUtil.h"
+#include "USDPreprocessor.h"
+
+static constexpr aiImporterDesc desc = {
+    "USD Object Importer",
+    "",
+    "",
+    "https://en.wikipedia.org/wiki/Universal_Scene_Description/",
+    aiImporterFlags_SupportTextFlavour | aiImporterFlags_SupportBinaryFlavour,
+    0,
+    0,
+    0,
+    0,
+    "usd usda usdc usdz"
+};
+
+namespace Assimp {
+using namespace std;
+
+// Constructor to be privately used by Importer
+USDImporter::USDImporter() :
+    impl(USDImporterImplTinyusdz()) {
+}
+
+// ------------------------------------------------------------------------------------------------
+
+bool USDImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool) const {
+    // Based on token
+    static const uint32_t usdcTokens[] = { AI_MAKE_MAGIC("PXR-USDC") };
+    bool canRead = CheckMagicToken(pIOHandler, pFile, usdcTokens, AI_COUNT_OF(usdcTokens));
+    if (canRead) {
+        return canRead;
+    }
+
+    // Based on extension
+    // TODO: confirm OK to replace this w/SimpleExtensionCheck() below
+    canRead = isUsd(pFile) || isUsda(pFile) || isUsdc(pFile) || isUsdz(pFile);
+    if (canRead) {
+        return canRead;
+    }
+    canRead = SimpleExtensionCheck(pFile, "usd", "usda", "usdc", "usdz");
+    return canRead;
+}
+
+const aiImporterDesc *USDImporter::GetInfo() const {
+    return &desc;
+}
+
+void USDImporter::InternReadFile(
+        const std::string &pFile,
+        aiScene *pScene,
+        IOSystem *pIOHandler) {
+    impl.InternReadFile(
+            pFile,
+            pScene,
+            pIOHandler);
+}
+
+} // namespace Assimp
+
+#endif // !! ASSIMP_BUILD_NO_USD_IMPORTER
+

Engine/lib/assimp/code/AssetLib/USD/USDLoader.h

@@ -0,0 +1,78 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software 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 the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"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.
+----------------------------------------------------------------------
+*/
+
+/** @file  USDLoader.h
+ *  @brief Declaration of the USD importer class.
+ */
+#pragma once
+#ifndef AI_USDLOADER_H_INCLUDED
+#define AI_USDLOADER_H_INCLUDED
+
+#include <assimp/BaseImporter.h>
+#include <assimp/types.h>
+#include <vector>
+#include <cstdint>
+
+#include "USDLoaderImplTinyusdz.h"
+
+namespace Assimp {
+class USDImporter : public BaseImporter {
+public:
+    USDImporter();
+    ~USDImporter() override = default;
+
+    /// \brief  Returns whether the class can handle the format of the given file.
+    /// \remark See BaseImporter::CanRead() for details.
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const override;
+
+protected:
+    //! \brief  Appends the supported extension.
+    const aiImporterDesc *GetInfo() const override;
+
+    void InternReadFile(
+            const std::string &pFile,
+            aiScene *pScene,
+            IOSystem *pIOHandler) override;
+private:
+    USDImporterImplTinyusdz impl;
+};
+
+} // namespace Assimp
+#endif // AI_USDLOADER_H_INCLUDED

Engine/lib/assimp/code/AssetLib/USD/USDLoaderImplTinyusdz.h

@@ -0,0 +1,160 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software 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 the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"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.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  USDLoader.h
+ *  @brief Declaration of the USD importer class.
+ */
+#pragma once
+#ifndef AI_USDLOADER_IMPL_TINYUSDZ_H_INCLUDED
+#define AI_USDLOADER_IMPL_TINYUSDZ_H_INCLUDED
+
+#include <assimp/BaseImporter.h>
+#include <assimp/scene.h>
+#include <assimp/types.h>
+#include <vector>
+#include <cstdint>
+#include "tinyusdz.hh"
+#include "tydra/render-data.hh"
+
+namespace Assimp {
+class USDImporterImplTinyusdz {
+public:
+    USDImporterImplTinyusdz() = default;
+    ~USDImporterImplTinyusdz() = default;
+
+    void InternReadFile(
+            const std::string &pFile,
+            aiScene *pScene,
+            IOSystem *pIOHandler);
+
+    void animations(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene);
+
+    void meshes(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void verticesForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void facesForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void normalsForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void materialsForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void uvsForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void materials(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void textures(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void textureImages(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void buffers(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void setupNodes(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    aiNode *nodes(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            const std::string &nameWExt);
+
+    aiNode *nodesRecursive(
+            aiNode *pNodeParent,
+            const tinyusdz::tydra::Node &node,
+            const std::vector<tinyusdz::tydra::SkelHierarchy> &skeletons);
+
+    aiNode *skeletonNodesRecursive(
+            aiNode *pNodeParent,
+            const tinyusdz::tydra::SkelNode &joint);
+
+    void sanityCheckNodesRecursive(
+            aiNode *pNode);
+
+    void setupBlendShapes(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void blendShapesForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+};
+} // namespace Assimp
+#endif // AI_USDLOADER_IMPL_TINYUSDZ_H_INCLUDED

Engine/lib/assimp/code/AssetLib/USD/USDLoaderImplTinyusdzHelper.cpp

@@ -0,0 +1,114 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software 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 the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"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.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef ASSIMP_BUILD_NO_USD_IMPORTER
+#include "USDLoaderImplTinyusdzHelper.h"
+
+#include "../../../contrib/tinyusdz/assimp_tinyusdz_logging.inc"
+
+namespace {
+//const char *const TAG = "tinyusdz helper";
+}
+
+using ChannelType = tinyusdz::tydra::AnimationChannel::ChannelType;
+std::string Assimp::tinyusdzAnimChannelTypeFor(ChannelType animChannel) {
+    switch (animChannel) {
+    case ChannelType::Transform: {
+        return "Transform";
+    }
+    case ChannelType::Translation: {
+        return "Translation";
+    }
+    case ChannelType::Rotation: {
+        return "Rotation";
+    }
+    case ChannelType::Scale: {
+        return "Scale";
+    }
+    case ChannelType::Weight: {
+        return "Weight";
+    }
+    default:
+        return "Invalid";
+    }
+}
+
+using tinyusdz::tydra::NodeType;
+std::string Assimp::tinyusdzNodeTypeFor(NodeType type) {
+    switch (type) {
+    case NodeType::Xform: {
+        return "Xform";
+    }
+    case NodeType::Mesh: {
+        return "Mesh";
+    }
+    case NodeType::Camera: {
+        return "Camera";
+    }
+    case NodeType::Skeleton: {
+        return "Skeleton";
+    }
+    case NodeType::PointLight: {
+        return "PointLight";
+    }
+    case NodeType::DirectionalLight: {
+        return "DirectionalLight";
+    }
+    case NodeType::EnvmapLight: {
+        return "EnvmapLight";
+    }
+    default:
+        return "Invalid";
+    }
+}
+
+aiVector3D Assimp::tinyUsdzScaleOrPosToAssimp(const std::array<float, 3> &scaleOrPosIn) {
+    return aiVector3D(scaleOrPosIn[0], scaleOrPosIn[1], scaleOrPosIn[2]);
+}
+
+aiQuaternion Assimp::tinyUsdzQuatToAiQuat(const std::array<float, 4> &quatIn) {
+    // tinyusdz "quat" is x,y,z,w
+    // aiQuaternion is w,x,y,z
+    return aiQuaternion(
+            quatIn[3], quatIn[0], quatIn[1], quatIn[2]);
+}
+
+#endif // !! ASSIMP_BUILD_NO_USD_IMPORTER

Engine/lib/assimp/code/AssetLib/USD/USDLoaderImplTinyusdzHelper.h

@@ -0,0 +1,92 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software 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 the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"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.
+
+----------------------------------------------------------------------
+*/
+
+#pragma once
+#ifndef AI_USDLOADER_IMPL_TINYUSDZ_HELPER_H_INCLUDED
+#define AI_USDLOADER_IMPL_TINYUSDZ_HELPER_H_INCLUDED
+
+#include <assimp/BaseImporter.h>
+#include <assimp/scene.h>
+#include <assimp/types.h>
+#include "tinyusdz.hh"
+#include "tydra/render-data.hh"
+#include <type_traits>
+
+namespace Assimp {
+
+std::string tinyusdzAnimChannelTypeFor(
+        tinyusdz::tydra::AnimationChannel::ChannelType animChannel);
+std::string tinyusdzNodeTypeFor(tinyusdz::tydra::NodeType type);
+
+template <typename T>
+aiMatrix4x4 tinyUsdzMat4ToAiMat4(const T matIn[4][4]) {
+    static_assert(std::is_floating_point_v<T>, "Only floating-point types are allowed.");
+    aiMatrix4x4 matOut;
+    matOut.a1 = matIn[0][0];
+    matOut.a2 = matIn[1][0];
+    matOut.a3 = matIn[2][0];
+    matOut.a4 = matIn[3][0];
+    matOut.b1 = matIn[0][1];
+    matOut.b2 = matIn[1][1];
+    matOut.b3 = matIn[2][1];
+    matOut.b4 = matIn[3][1];
+    matOut.c1 = matIn[0][2];
+    matOut.c2 = matIn[1][2];
+    matOut.c3 = matIn[2][2];
+    matOut.c4 = matIn[3][2];
+    matOut.d1 = matIn[0][3];
+    matOut.d2 = matIn[1][3];
+    matOut.d3 = matIn[2][3];
+    matOut.d4 = matIn[3][3];
+    return matOut;
+}
+aiVector3D tinyUsdzScaleOrPosToAssimp(const std::array<float, 3> &scaleOrPosIn);
+
+/**
+ * Convert quaternion from tinyusdz "quat" to assimp "aiQuaternion" type
+ *
+ * @param quatIn tinyusdz float[4] in x,y,z,w order
+ * @return assimp aiQuaternion converted from input
+ */
+aiQuaternion tinyUsdzQuatToAiQuat(const std::array<float, 4> &quatIn);
+
+} // namespace Assimp
+#endif // AI_USDLOADER_IMPL_TINYUSDZ_HELPER_H_INCLUDED

Engine/lib/assimp/code/AssetLib/USD/USDLoaderUtil.cpp

@@ -0,0 +1,116 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software 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 the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"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.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  USDLoader.cpp
+ *  @brief Implementation of the USD importer class
+ */
+
+#ifndef ASSIMP_BUILD_NO_USD_IMPORTER
+#include <memory>
+
+// internal headers
+#include <assimp/ai_assert.h>
+#include <assimp/anim.h>
+#include <assimp/DefaultIOSystem.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/fast_atof.h>
+#include <assimp/Importer.hpp>
+#include <assimp/importerdesc.h>
+#include <assimp/IOStreamBuffer.h>
+#include <assimp/IOSystem.hpp>
+#include <assimp/scene.h>
+#include <assimp/StringUtils.h>
+#include <assimp/StreamReader.h>
+
+#include "USDLoaderUtil.h"
+
+namespace Assimp {
+using namespace std;
+bool isUsda(const std::string &pFile) {
+    size_t pos = pFile.find_last_of('.');
+    if (pos == string::npos) {
+        return false;
+    }
+    string ext = pFile.substr(pos + 1);
+    if (ext.size() != 4) {
+        return false;
+    }
+    return (ext[0] == 'u' || ext[0] == 'U') && (ext[1] == 's' || ext[1] == 'S') && (ext[2] == 'd' || ext[2] == 'D') && (ext[3] == 'a' || ext[3] == 'A');
+}
+
+bool isUsdc(const std::string &pFile) {
+    size_t pos = pFile.find_last_of('.');
+    if (pos == string::npos) {
+        return false;
+    }
+    string ext = pFile.substr(pos + 1);
+    if (ext.size() != 4) {
+        return false;
+    }
+    return (ext[0] == 'u' || ext[0] == 'U') && (ext[1] == 's' || ext[1] == 'S') && (ext[2] == 'd' || ext[2] == 'D') && (ext[3] == 'c' || ext[3] == 'C');
+}
+
+bool isUsdz(const std::string &pFile) {
+    size_t pos = pFile.find_last_of('.');
+    if (pos == string::npos) {
+        return false;
+    }
+    string ext = pFile.substr(pos + 1);
+    if (ext.size() != 4) {
+        return false;
+    }
+    return (ext[0] == 'u' || ext[0] == 'U') && (ext[1] == 's' || ext[1] == 'S') && (ext[2] == 'd' || ext[2] == 'D') && (ext[3] == 'z' || ext[3] == 'Z');
+}
+
+bool isUsd(const std::string &pFile) {
+    size_t pos = pFile.find_last_of('.');
+    if (pos == string::npos) {
+        return false;
+    }
+    string ext = pFile.substr(pos + 1);
+    if (ext.size() != 3) {
+        return false;
+    }
+    return (ext[0] == 'u' || ext[0] == 'U') && (ext[1] == 's' || ext[1] == 'S') && (ext[2] == 'd' || ext[2] == 'D');
+}
+} // namespace Assimp
+
+#endif // !! ASSIMP_BUILD_NO_USD_IMPORTER

Engine/lib/assimp/code/AssetLib/USD/USDLoaderUtil.h

@@ -0,0 +1,60 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software 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 the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"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.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  USDLoader.h
+ *  @brief Declaration of the USD importer class.
+ */
+#pragma once
+#ifndef AI_USDLOADER_UTIL_H_INCLUDED
+#define AI_USDLOADER_UTIL_H_INCLUDED
+
+#include <string>
+
+namespace Assimp {
+
+bool isUsda(const std::string &pFile);
+bool isUsdc(const std::string &pFile);
+bool isUsdz(const std::string &pFile);
+bool isUsd(const std::string &pFile);
+
+} // namespace Assimp
+
+#endif // AI_USDLOADER_UTIL_H_INCLUDED

Engine/lib/assimp/code/AssetLib/USD/USDPreprocessor.h

@@ -0,0 +1,50 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+                          All rights reserved.
+
+                          Redistribution and use of this software 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 the assimp team, nor the names of its
+                contributors may be used to endorse or promote products
+                   derived from this software without specific prior
+                   written permission of the assimp team.
+
+                   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+                   "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.
+                ----------------------------------------------------------------------
+                */
+
+/** @file  USDLoader.h
+ *  @brief Declaration of the USD importer class.
+ */
+#pragma once
+#ifndef AI_USDPREPROCESSOR_H_INCLUDED
+#define AI_USDPREPROCESSOR_H_INCLUDED
+
+#define UNUSED(x) (void) x
+
+#endif // AI_USDPREPROCESSOR_H_INCLUDED