What's Changed

• Fix building on Haiku by @Begasus in #5255
• Reduce memory consumption in JoinVerticesProcess::ProcessMesh() signi… by @ockeymm in #5252
• Fix: Add check for invalid input argument by @kimkulling in #5258
• Replace an assert by an error log. by @kimkulling in #5260
• Extension of skinning data export to GLB/GLTF format by @fvbj in #5243
• Fix output floating-point values to fbx by @Riv1s-sSsA01 in #5265
• Update ImproveCacheLocality.cpp by @kimkulling in #5268
• Update Readme.md by @kimkulling in #5277
• Deep arsdk bone double free by @kimkulling in #5291
• Fix Spelling error by @JulianKnodt in #5295
• Use size in order to be compatible with float and double by @sloriot in #5270
• Fix: Add missing transformation for normalized normals. by @kimkulling in #5301
• Fix: Implicit Conversion Error by @Ipomoea in #5271
• Fix add checks for indices by @kimkulling in #5306
• Update FBXBinaryTokenizer.cpp by @kimkulling in #5311
• link to external minizip with full path by @aumuell in #5278
• utf8 header not found by @TarcioV in #5279
• Rm unnecessary deg->radian conversion in FBX exporter by @JulianKnodt in #5281
• Fix empty mesh handling by @kimkulling in #5318
• Refactoring: Some cleanups by @kimkulling in #5319
• Fix invalid read of uint from uvwsrc by @JulianKnodt in #5282
• Remove double delete by @kimkulling in #5325
• Fix mesh-name error. by @copycd in #5294
• COLLADA fixes for textures in C4D input by @wmatyjewicz in #5293
• Use the correct allocator for deleting objects in case of duplicate a… by @FlorianBorn71 in #5305
• Fix container overflow in MMD parser by @aavenel in #5309
• Fix: PLY heap buffer overflow by @aavenel in #5310
• Update Readme.md by @cuppajoeman in #5312
• Update Readme.md by @cuppajoeman in #5313
• Fix: Check if index for mesh access is out of range by @kimkulling in #5338
• Update FBXConverter.cpp by @kimkulling in #5349
• FBX: Use correct time scaling by @kimkulling in #5355
• Drop explicit inclusion of contrib/ headers by @umlaeute in #5316
• Update Build.md by @cuppajoeman in #5314
• Fix buffer overflow in FBX::Util::DecodeBase64() by @ttxine in #5322
• Readme.md: correct 2 errors in section headers by @stephengold in #5351
• Fix double free in Video::~Video() by @ttxine in #5323
• FBXMeshGeometry: solve issue #5116 using patch provided by darktjm by @stephengold in #5333
• Fix target names not being imported on some gLTF2 models by @Futuremappermydud in #5356
• correct grammar/typographic errors in comments (8 files) by @stephengold in #5343
• KHR_materials_specular fixes by @rudybear in #5347
• Disable Hunter by @kimkulling in #5388
• fixed several issues by @MarkaRagnos0815 in #5359
• Fix leak by @kimkulling in #5391
• Check validity of archive without parsing by @kimkulling in #5393
• Fix integer overflow by @kimkulling in #5394
• Add a test before generating the txture folder by @kimkulling in #5400
• Build: Disable building zlib for non-windows by @kimkulling in #5401
• null check. by @copycd in #5402
• Bump actions/upload-artifact from 3 to 4 by @dependabot in #5384
• fix: KHR_materials_pbrSpecularGlossiness/diffuseFactor convert to pbr… by @guguTang in #5410
• fix building errors for MinGW by @0xf0ad in #5376
• dynamic_cast error. by @copycd in #5406
• Add missing IRR textures by @tellypresence in #5374
• Update Dockerfile by @kimkulling in #5412
• Fix handling of X3D IndexedLineSet nodes by @andre-schulz in #5362
• Improve acc file loading by @IOBYTE in #5360
• Readme.md: present hyperlinks in a more uniform style by @stephengold in #5364
• FBX Blendshape FullWeight: Vec<Float> -> FullWeight: Vec<Double> by @JulianKnodt in #5441
• Fix for issues #5422, #3411, and #5443 -- DXF insert scaling fix and colour fix by @seanth in #5426
• Update StbCommon.h to stay up-to-date with stb_image.h. by @tigert1998 in #5436
• Introduce aiBuffer by @kimkulling in #5444
• Add bounds checks to the parsing utilities. by @kimkulling in #5421
• Fix crash in viewer by @kimkulling in #5446
• Static code analysis fixes by @kimkulling in #5447
• Kimkulling/fix behavior of remove redundant mats issue 5438 by @kimkulling in #5451
• Fix X importer breakage introduced in commit f844c33 by @tellypresence in #5372
• Fileformats.md: clarify that import of .blend files is deprecated by @stephengold in #5350
• feat:1.add 3mf vertex color read 2.fix 3mf read texture bug by @GalenXiao in #5361
• More GLTF loading hardening by @FlorianBorn71 in #5415
• Bump actions/cache from 3 to 4 by @dependabot in #5431
• Update CMakeLists.txt by @mosfet80 in #5379
• Blendshape->Geometry in FBX Export by @JulianKnodt in #5419
• Fix identity matrix check by @fvbj in #5445
• Fix PyAssimp under Python >= 3.12 and macOS library search support by @Th3T3chn0G1t in #5397
• Add ISC LICENSE file by @severin-lemaignan in #5465
• ColladaParser: check values length by @etam in #5462
• Include defs in not cpp-section by @kimkulling in #5466
• Add correct double zero check by @kimkulling in #5471
• Add zlib-header to ZipArchiveIOSystem.h by @kimkulling in #5473
• Add 2024 to copyright infos by @kimkulling in #5475
• Append a new setting "AI_CONFIG_EXPORT_FBX_TRANSPARENCY_FACTOR_REFER_TO_OPACITY" by @Riv1s-sSsA01 in #5450
• Eliminate non-ascii comments in clipper by @adfwer233 in #5480
• Fix compilation for MSVC14. by @LukasBanana in #5490
• Add correction of fbx model rotation by @kimkulling in #5494
• Delete tools/make directory by @mosfet80 in #5491
• Delete packaging/windows-mkzip directory by @mosfet80 in #5492
• Fix #5420 duplicate degrees to radians conversion in fbx importer by @Biohazard90 in #5427
• Respect merge identical vertices in ObjExporter by @JulianKnodt in #5521
• Fix utDefaultIOStream test under MinGW by @thenanisore in #5525
• Fix typos by @RoboSchmied in #5518
• Add initial macOS support to C4D importer by @AlexTMjugador in #5516
• Update hunter into CMakeLists.txt by @mosfet80 in #5505
• Fix: add a missing import for AI_CONFIG_CHECK_IDENTITY_MATRIX_EPSILON_DEFAULT by @tomheaton in #5507
• updated json by @mosfet80 in #5501
• Cleanup: Fix review findings by @kimkulling in #5528
• Update CMakeLists.txt by @kimkulling in #5531
• CMake: Allow linking draco statically if ASSIMP_BUILD_DRACO_STATIC is set. by @alexrp in #5535
• updated minizip to last version by @mosfet80 in #5498
• updated STBIMAGElib by @mosfet80 in #5500
• fix issue #5461 (segfault after removing redundant materials) by @stephengold in #5467
• Update ComputeUVMappingProcess.cpp by @kimkulling in #5541
• add some ASSIMP_INSTALL checks by @ZeunO8 in #5545
• Fix SplitByBoneCount typo that prevented node updates by @Succ3s in #5550
• Q3DLoader: Fix possible material string overflow by @kimkulling in #5556
• Reverts the changes introduced by commit ad766cb in February 2022. by @johannesugb in #5542
• fix a collada import bug by @xiaoxiaopifu in #5561
• mention IQM loader in Fileformats.md by @Garux in #5560
• Kimkulling/fix pyassimp compatibility by @kimkulling in #5563
• fix ASE loader crash when *MATERIAL_COUNT or *NUMSUBMTLS is not specified or is 0 by @Garux in #5559
• Add checks for invalid buffer and size by @kimkulling in #5570
• Make sure for release revision will be zero by @kimkulling in #5571
• glTF2Importer: Support .vrm extension by @uyjulian in #5569
• Prepare v5.4.1 by @kimkulling in #5573
• Remove deprecated c++11 warnings by @kimkulling in #5576
• fix ci by disabling tests by @kimkulling in #5583
• Fix integer overflow by @kimkulling in #5581
• Assimp viewer fixes by @JLouis-B in #5582
• Optimize readability by @kimkulling in #5578
• Temporary fix for #5557 GCC 13+ build issue -Warray-bounds by @dbs4261 in #5577
• Fix a bug that could cause an assertion failure. by @vengine in #5575
• Fix possible nullptr dereferencing. by @kimkulling in #5595
• Update ObjFileParser.cpp by @kimkulling in #5598
• Fix for #5592 Disabled maybe-uninitialized error for AssetLib/Obj/ObjFileParser.cpp by @dbs4261 in #5593
• updated zip by @mosfet80 in #5499
• Postprocessing: Fix endless loop by @kimkulling in #5605
• Build: Fix compilation for VS-2022 debug mode - warning by @kimkulling in #5606
• Converted a size_t to mz_uint that was being treated as an error by @BradlyLanducci in #5600
• Add trim to xml string parsing by @kimkulling in #5611
• Replace duplicated trim by @kimkulling in #5613
• Move aiScene constructor by @kimkulling in #5614
• Move revision.h and revision.h.in to include folder by @kimkulling in #5615
• Update MDLMaterialLoader.cpp by @kimkulling in #5620
• Create inno_setup by @kimkulling in #5621
• clean HunterGate.cmake by @mosfet80 in #5619
• Draft: Update init of aiString by @kimkulling in #5623
• Fix init aiString issue 5622 in python module by @kimkulling in #5625
• update dotnet example by @mosfet80 in #5618
• Make step file schema validation more robust. by @kimkulling in #5627
• fix PLY binary export color from float to uchar by @michaelsctts in #5608
• Some FBXs do not have "Materials" information, which can cause parsing errors by @ycn2022 in #5624
• Fix collada uv channels - temporary was stored and then updated. by @StepanHrbek in #5630
• remove ASE parsing break by @Garux in #5634
• FBX-Exporter: Fix nullptr dereferencing by @kimkulling in #5638
• Fix FBX exporting incorrect bone order by @JulianKnodt in #5435
• fixes potential memory leak on malformed obj file by @TinyTinni in #5645
• Update zip.c by @ThatOSDev in #5639
• Fixes some uninit bool loads by @TinyTinni in #5644
• Fix names of enum values in docstring of aiProcess_FindDegenerates by @mapret in #5640
• Fix: StackAllocator Undefined Reference fix by @bedwardly-down in #5650
• Plx: Fix out-of-bound access by @kimkulling in #5651
• Docker: Fix security finding by @kimkulling in #5655
• Fix potential heapbuffer overflow in md5 parsing by @TinyTinni in #5652
• Replace raw pointers by std::string by @kimkulling in #5656
• Fix compile warning by @kimkulling in #5657
• Allow empty slots in mTextureCoords by @StepanHrbek in #5636
• Update Readme.md by @kimkulling in #5663
• Update Readme.md by @kimkulling in #5665
• [USD] Integrate "tinyusdz" project by @tellypresence in #5628
• Kimkulling/fix double precision tests by @kimkulling in #5660
• Update Python structs with missing fields that were causing core dumps by @vjf in #5673
• Introduce interpolation mode to vector and quaternion keys by @kimkulling in #5674
• Fix a fuzz test heap buffer overflow in mdl material loader by @sgayda2 in #5658
• Mosfet80 updatedpoli2tri by @kimkulling in #5682
• CalcTangents: zero vector is invalid for tangent/bitangent by @JensEhrhardt-eOPUS in #5432
• A fuzzed stride could cause the max count to become negative and henc… by @FlorianBorn71 in #5414
• Return false instead of a crash by @kimkulling in #5685
• Make coord transfor for hs1 files optional by @kimkulling in #5687
• Update DefaultIOSystem.cpp by @kimkulling in #5697
• FBX exporter - handle multiple vertex color channels by @Kimbatt in #5695
• Fixing static builds on Windows by @natevm in #5713
• Added AND condition in poly2tri dll_symbol.h to only define macros fo… by @mkuritsu in #5693
• Fix MSVC PDBs and permit them to be disabled if required by @RichardTea in #5710
• Use DRACO_GLTF_BITSTREAM by @RichardTea in #5709
• include Exceptional.h in 3DSExporter.cpp by @Fiskmans in #5707
• Remove recursive include by @Fiskmans in #5705
• Fix: Possible out-of-bound read in findDegenerate by @TinyTinni in #5679
• Revert variable name by @tellypresence in #5715
• Add compile option /source-charset:utf-8 for MSVC by @kenichiice in #5716
• Fix leak in loader by @kimkulling in #5718
• Expose aiGetEmbeddedTexture to C-API by @sacereda in #5382
• Sparky kitty studios master by @kimkulling in #5727
• Added more Maya materials by @Sanchikuuus in #5101
• Fix to check both types of slashes in GetShortFilename by @imdongye in #5728
• Bump actions/download-artifact from 1 to 4 by @dependabot in #5732
• Bump actions/upload-artifact from 1 to 4 by @dependabot in #5731
• Bump softprops/action-gh-release from 1 to 2 by @dependabot in #5730
• Fix copying private data when the source pointer is NULL by @vjf in #5733
• Fix potential memory leak in SceneCombiner for LWS/IRR/MD3 loader by @TinyTinni in #5721
• Fix to correctly determine 'multi-configuration' on Windows by @kenichiice in #5720
• Fix casting typo in D3MFExporter::writeBaseMaterials by @ochafik in #5681
• FBX: add metadata of aiNode as properties by @fuhaixi in #5675
• feat: add an option for creating XCFramework and configure minimum iOS target by @AKosmachyov in #5648
• Update PyAssimp structs with Skeleton & SkeletonBone members by @vjf in #5734
• The total length is incorrect when exporting gltf2 by @Fav in #5647
• build: Add ccache support by @ochafik in #5686
• Update ccpp.yml by @kimkulling in #5740
• Ply-Importer: Fix vulnerability by @kimkulling in #5739
• prepare v5.4.3 by @kimkulling in #5741

New Contributors

• @Begasus made their first contribution in #5255
• @ockeymm made their first contribution in #5252
• @fvbj made their first contribution in #5243
• @JulianKnodt made their first contribution in #5295
• @sloriot made their first contribution in #5270
• @Ipomoea made their first contribution in #5271
• @aumuell made their first contribution in #5278
• @TarcioV made their first contribution in #5279
• @copycd made their first contribution in #5294
• @cuppajoeman made their first contribution in #5312
• @ttxine made their first contribution in #5322
• @Futuremappermydud made their first contribution in #5356
• @MarkaRagnos0815 made their first contribution in #5359
• @0xf0ad made their first contribution in #5376
• @seanth made their first contribution in #5426
• @tigert1998 made their first contribution in #5436
• @GalenXiao made their first contribution in #5361
• @Th3T3chn0G1t made their first contribution in #5397
• @etam made their first contribution in #5462
• @adfwer233 made their first contribution in #5480
• @LukasBanana made their first contribution in #5490
• @thenanisore made their first contribution in #5525
• @RoboSchmied made their first contribution in #5518
• @AlexTMjugador made their first contribution in #5516
• @tomheaton made their first contribution in #5507
• @alexrp made their first contribution in #5535
• @ZeunO8 made their first contribution in #5545
• @Succ3s made their first contribution in #5550
• @johannesugb made their first contribution in #5542
• @xiaoxiaopifu made their first contribution in #5561
• @uyjulian made their first contribution in #5569
• @dbs4261 made their first contribution in #5577
• @vengine made their first contribution in #5575
• @BradlyLanducci made their first contribution in #5600
• @michaelsctts made their first contribution in #5608
• @ycn2022 made their first contribution in #5624
• @ThatOSDev made their first contribution in #5639
• @mapret made their first contribution in #5640
• @bedwardly-down made their first contribution in #5650
• @sgayda2 made their first contribution in #5658
• @JensEhrhardt-eOPUS made their first contribution in #5432
• @Kimbatt made their first contribution in #5695
• @natevm made their first contribution in #5713
• @mkuritsu made their first contribution in #5693
• @Sanchikuuus made their first contribution in #5101
• @imdongye made their first contribution in #5728
• @ochafik made their first contribution in #5681
• @fuhaixi made their first contribution in #5675
• @AKosmachyov made their first contribution in #5648
• @Fav made their first contribution in #5647

Full Changelog: v5.3.1...v5.4.3