update assimp lib

Engine/lib/assimp/test/models-nonbsd/3D/mar_rifle.uc

@@ -1,6 +1,6 @@
 class mar expands Actor;
 
-#exec MESH IMPORT MESH=mar ANIVFILE=MODELS\mar_a.3d DATAFILE=MODELS\mar_d.3d X=0 Y=0 Z=0
+#exec MESH IMPORT MESH=mar ANIVFILE=MODELS\mar_rifle_a.3d DATAFILE=MODELS\mar_rifle_d.3d X=0 Y=0 Z=0
 #exec MESH ORIGIN MESH=mar X=0 Y=0 Z=0
 
 #exec MESH SEQUENCE MESH=mar SEQ=All STARTFRAME=0 NUMFRAMES=30
@@ -9,7 +9,7 @@ class mar expands Actor;
 #exec MESHMAP NEW MESHMAP=mar MESH=mar
 #exec MESHMAP SCALE MESHMAP=mar X=0.1 Y=0.1 Z=0.2
 
-#exec TEXTURE IMPORT NAME=Jtex1 FILE=..\3DS\m_rifl.bmp GROUP=Skins FLAGS=2
+#exec TEXTURE IMPORT NAME=Jtex1 FILE=m_rifl.bmp GROUP=Skins FLAGS=2
 #exec TEXTURE IMPORT NAME=Jtex1 FILE=texture1.pcx GROUP=Skins PALETTE=Jtex1
 #exec MESHMAP SETTEXTURE MESHMAP=mar NUM=1 TEXTURE=Jtex1
 

Engine/lib/assimp/test/models-nonbsd/AMF/ref/README.md

@@ -0,0 +1,10 @@
+# AMF 3D model reference images
+
+## 3_bananas.amf embedded texture
+3_bananas.amf embeds a strange-looking texture, but believe when applied to the model it ends up
+rendering correctly.
+
+(Note that this is a relatively rare example of a 3D model with an "uncompressed" embedded texture,
+may be useful for developers looking to test their assimp embedded texture implementations)
+
+<img alt="3bananas_embedded_texture.png" src="screenshots%2F3bananas_embedded_texture.png" width=320 />

Engine/lib/assimp/test/models-nonbsd/ASE/Rifle.ase

@@ -32,7 +32,7 @@
 		*MAP_CLASS "Bitmap"
 		*MAP_SUBNO 1
 		*MAP_AMOUNT 1.0000
-		*BITMAP "../3DS/MP5SIL.BMP"
+		*BITMAP "mp5sil.bmp"
 		*MAP_TYPE Screen
 		*UVW_U_OFFSET 0.000000
 		*UVW_V_OFFSET 0.000000

Engine/lib/assimp/test/models-nonbsd/ASE/Rifle2.ase

@@ -32,7 +32,7 @@
 		*MAP_CLASS "Bitmap"
 		*MAP_SUBNO 1
 		*MAP_AMOUNT 1.0000
-		*BITMAP "../3DS/m_rifl.bmp"
+		*BITMAP "m_rifl.bmp"
 		*MAP_TYPE Screen
 		*UVW_U_OFFSET 0.000000
 		*UVW_V_OFFSET 0.000000

Engine/lib/assimp/test/models-nonbsd/B3D/ref/README.md

@@ -0,0 +1,9 @@
+# B3D 3D model reference images
+
+## dwarf2.b3d
+Note: there's a weird artifact in the animation when the character starts running
+
+<img alt="dwarf2.b3d" src="screenshots/dwarf2_b3d.gif" width=180 />
+
+## turtle1.b3d
+<img alt="turtle1.b3d" src="screenshots/turtle1_b3d.gif" width=320 />

Engine/lib/assimp/test/models-nonbsd/BLEND/ref/README.md

@@ -0,0 +1,4 @@
+# BLEND 3D model reference images
+
+## fleurOptonl.blend
+<img alt="fleurOptonl.blend" src="screenshots/fleurOptonl_blend.png" width=180 />

Engine/lib/assimp/test/models-nonbsd/HMP/ref/README.md

@@ -0,0 +1,4 @@
+# HMP 3D model reference images
+
+## terrain_withtexture.hmp
+<img alt="terrain_withtexture.hmp" src="screenshots/terrain_withtexture_hmp.png" width=180 />

Engine/lib/assimp/test/models-nonbsd/IFC/linklist.txt

@@ -1,4 +1,4 @@
 Good IFC test cases
 ===================
 
-http://www.iai.fzk.de/www-extern/index.php?id=1135
+https://www.ifcwiki.org/index.php/Examples

Engine/lib/assimp/test/models-nonbsd/LWS/ref/README.md

@@ -0,0 +1,4 @@
+# LWS 3D model reference images
+
+## QuickDraw v.2.2.lws
+<img alt="QuickDraw v.2.2.lws" src="screenshots/quickdraw_v2_2_lws.gif" width=320 />

Engine/lib/assimp/test/models-nonbsd/MD5/ref/README.md

@@ -0,0 +1,12 @@
+# MD5 3D model reference images
+
+## Bob.md5anim
+Bones/skeleton-only animation visualization
+
+<img alt="Bob.md5anim" src="screenshots/Bob_md5anim.gif" width=180 />
+
+
+## Bob.md5mesh
+Skinned, textured animated model
+
+<img alt="Bob.md5mesh" src="screenshots/Bob_md5mesh.gif" width=180 />

Engine/lib/assimp/test/models-nonbsd/MDL/IDPO (Quake1)/ref/README.md

@@ -0,0 +1,4 @@
+# IDPO 3D model reference images
+
+## gijoe.mdl
+<img alt="gijoe.mdl" src="screenshots/gijoe_mdl.png" width=180 />

Engine/lib/assimp/test/models-nonbsd/OBJ/rifle.mtl

@@ -4,4 +4,4 @@ Ka 0.588235 0.588235 0.588235
 Ks 0.898039 0.898039 0.898039
 Ns 128
 Tr 0
-map_Kd ./../3DS/m_rifl.bmp
+map_Kd m_rifl.bmp

Engine/lib/assimp/test/models-nonbsd/Ogre/OgreSDK/ref/README.md

@@ -0,0 +1,9 @@
+# OgreSDK 3D model reference images
+
+## fish.mesh
+<img alt="fish.mesh" src="screenshots/fish_mesh.gif" width=320 />
+
+## ninja.mesh
+Simple rigged/skinned model with about 20 animations
+
+<img alt="ninja.mesh" src="screenshots/ninja_mesh.gif" width=180 />

Engine/lib/assimp/test/models-nonbsd/USD/usda/README.md

@@ -0,0 +1,5 @@
+[blendshape.usda](blendshape.usda) copied from tinyusdz/models (No attribution/license cited in that project)
+[texturedcube.usda](texturedcube.usda) copied from tinyusdz/models (No attribution/license cited in that project)
+[translated-cube.usda](translated-cube.usda) copied from tinyusdz/models (No attribution/license cited in that project)
+[simple-skin-test.usda](simple-skin-test.usda) copied from tinyusdz/models (No attribution/license cited in that project)
+[simple-skin-animation-test.usda](simple-skin-animation-test.usda) modified tinyusdz/models (No attribution/license cited in that project)

Engine/lib/assimp/test/models-nonbsd/USD/usda/blendshape.usda

@@ -0,0 +1,154 @@
+#usda 1.0
+(
+    defaultPrim = "root"
+    doc = "Blender v3.4.0 Alpha"
+    metersPerUnit = 0.01
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    float3 xformOp:scale = (100, 100, 100)
+    uniform token[] xformOpOrder = ["xformOp:scale"]
+
+    def Scope "lights"
+    {
+        def DomeLight "environment"
+        {
+            custom color3f color = (0.05087609, 0.05087609, 0.05087609)
+            color3f inputs:color = (0.05087609, 0.05087609, 0.05087609)
+            float inputs:intensity = 683.0135
+            custom float intensity = 683.0135
+        }
+    }
+
+    def Scope "materials"
+    {
+        def Material "Material"
+        {
+            token outputs:surface.connect = </root/materials/Material/preview/Principled_BSDF.outputs:surface>
+            custom string userProperties:blenderName:data = "Material"
+
+            def Scope "preview"
+            {
+                def Shader "Principled_BSDF"
+                {
+                    uniform token info:id = "UsdPreviewSurface"
+                    float inputs:clearcoat = 0
+                    float inputs:clearcoatRoughness = 0.03
+                    color3f inputs:diffuseColor = (0.8, 0.8, 0.8)
+                    color3f inputs:emissiveColor = (0, 0, 0)
+                    float inputs:ior = 1.45
+                    float inputs:metallic = 0
+                    float inputs:opacity = 1
+                    float inputs:roughness = 0.5
+                    float inputs:specular = 0.5
+                    token outputs:surface
+                }
+            }
+        }
+    }
+
+    def SkelRoot "Cube"
+    {
+        custom string userProperties:blenderName:object = "Cube"
+
+        def Mesh "Cube" (
+            active = true
+            prepend apiSchemas = ["SkelBindingAPI"]
+        )
+        {
+            uniform bool doubleSided = 1
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 4, 6, 2, 3, 2, 6, 7, 7, 6, 4, 5, 5, 1, 3, 7, 1, 0, 2, 3, 5, 4, 0, 1]
+            rel material:binding = </root/materials/Material>
+            normal3f[] normals = [(-2.3880695e-8, 0, 1), (-2.3880695e-8, 0, 1), (-2.3880695e-8, 0, 1), (-2.3880695e-8, 0, 1), (-0.23399627, -0.9436586, -0.2339963), (-0.23399627, -0.9436586, -0.2339963), (-0.23399627, -0.9436586, -0.2339963), (-0.23399627, -0.9436586, -0.2339963), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0)] (
+                interpolation = "faceVarying"
+            )
+            point3f[] points = [(1, 1, 1), (1, 1, -1), (1, -1.9918684, 1), (1, -1, -1), (-1, 1, 1), (-1, 1, -1), (-1, -1, 1), (-1, -1, -1)]
+            int[] primvars:skel:jointIndices = [0, 0, 0, 0, 0, 0, 0, 0] (
+                elementSize = 1
+                interpolation = "vertex"
+            )
+            float[] primvars:skel:jointWeights = [1, 1, 1, 1, 1, 1, 1, 1] (
+                elementSize = 1
+                interpolation = "vertex"
+            )
+            texCoord2f[] primvars:st = [(0.625, 0.5), (0.875, 0.5), (0.875, 0.75), (0.625, 0.75), (0.375, 0.75), (0.625, 0.75), (0.625, 1), (0.375, 1), (0.375, 0), (0.625, 0), (0.625, 0.25), (0.375, 0.25), (0.125, 0.5), (0.375, 0.5), (0.375, 0.75), (0.125, 0.75), (0.375, 0.5), (0.625, 0.5), (0.625, 0.75), (0.375, 0.75), (0.375, 0.25), (0.625, 0.25), (0.625, 0.5), (0.375, 0.5)] (
+                interpolation = "faceVarying"
+            )
+            uniform token[] skel:blendShapes = ["Key_1"]
+            rel skel:blendShapeTargets = </root/Cube/Cube/Key_1>
+            prepend rel skel:skeleton = </root/Cube/Skel>
+            uniform token subdivisionScheme = "none"
+            custom string userProperties:blenderName:data = "Cube"
+            custom string userProperties:blenderName:data:st = "UVMap"
+
+            def BlendShape "Key_1"
+            {
+                uniform vector3f[] offsets = [(0, 0, 0.98508406), (0, 0, 0), (0, 0.892874, 0.98508406), (0, 0, 0), (0, 0, 0.98508406), (0, 0, 0), (0, 0, 0.98508406), (0, 0, 0)]
+                uniform int[] pointIndices = [0, 1, 2, 3, 4, 5, 6, 7]
+            }
+        }
+
+        def Skeleton "Skel"
+        {
+            uniform matrix4d[] bindTransforms = [( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) )]
+            uniform token[] joints = ["joint1"]
+            uniform matrix4d[] restTransforms = [( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) )]
+            prepend rel skel:animationSource = </root/Cube/Skel/Anim>
+
+            def SkelAnimation "Anim"
+            {
+                uniform token[] blendShapes = ["Key_1"]
+                float[] blendShapeWeights = [0]
+            }
+        }
+    }
+
+    def Xform "Light"
+    {
+        custom string userProperties:blenderName:object = "Light"
+        float3 xformOp:rotateXYZ = (37.26105, 3.163703, 106.93632)
+        float3 xformOp:scale = (1, 0.99999994, 1)
+        double3 xformOp:translate = (4.076245307922363, 1.0054539442062378, 5.903861999511719)
+        uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ", "xformOp:scale"]
+
+        def SphereLight "Light"
+        {
+            custom color3f color = (1, 1, 1)
+            color3f inputs:color = (1, 1, 1)
+            float inputs:intensity = 5435247
+            float inputs:radius = 0.10000002
+            float inputs:specular = 1
+            custom float intensity = 5435247
+            custom float radius = 0.10000002
+            custom float specular = 1
+            custom string userProperties:blenderName:data = "Light"
+        }
+    }
+
+    def Xform "Camera"
+    {
+        custom string userProperties:blenderName:object = "Camera"
+        float3 xformOp:rotateXYZ = (63.559303, -0.0000026647115, 46.691948)
+        float3 xformOp:scale = (1, 1, 1)
+        double3 xformOp:translate = (7.358891487121582, -6.925790786743164, 4.958309173583984)
+        uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ", "xformOp:scale"]
+
+        def Camera "Camera"
+        {
+            float2 clippingRange = (10, 10000)
+            float focalLength = 50
+            float horizontalAperture = 36
+            float horizontalApertureOffset = 0
+            token projection = "perspective"
+            double shutter:close = 0.25
+            double shutter:open = -0.25
+            custom string userProperties:blenderName:data = "Camera"
+            float verticalAperture = 24
+            float verticalApertureOffset = 0
+        }
+    }
+}
+

Engine/lib/assimp/test/models-nonbsd/USD/usda/simple-skin-animation-test.usda

@@ -0,0 +1,237 @@
+#usda 1.0
+(
+    defaultPrim = "root"
+    doc = "Blender v4.2.3 LTS"
+    endTimeCode = 40
+    metersPerUnit = 1
+    startTimeCode = 0
+    timeCodesPerSecond = 24
+    upAxis = "Z"
+)
+
+def Xform "root" (
+    customData = {
+        dictionary Blender = {
+            bool generated = 1
+        }
+    }
+)
+{
+    def SkelRoot "Armature_001"
+    {
+        custom string userProperties:blender:object_name = "Armature.001"
+        float3 xformOp:rotateXYZ = (-89.99999, 0, 0)
+        float3 xformOp:scale = (1, 1, 1)
+        double3 xformOp:translate = (0, -1.7017418146133423, 0)
+        uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ", "xformOp:scale"]
+
+        def Xform "Grid"
+        {
+            custom string userProperties:blender:object_name = "Grid"
+            float3 xformOp:rotateXYZ = (89.99999, -0, 0)
+            float3 xformOp:scale = (1, 1, 1)
+            double3 xformOp:translate = (0, -7.438549687321938e-8, 1.7017418146133423)
+            uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ", "xformOp:scale"]
+
+            def Mesh "Grid" (
+                active = true
+                prepend apiSchemas = ["SkelBindingAPI"]
+            )
+            {
+                float3[] extent = [(-1, -1, 0), (1, 1, 0)]
+                int[] faceVertexCounts = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4]
+                int[] faceVertexIndices = [0, 1, 6, 5, 1, 2, 7, 6, 2, 3, 8, 7, 3, 4, 9, 8, 5, 6, 11, 10, 6, 7, 12, 11, 7, 8, 13, 12, 8, 9, 14, 13, 10, 11, 16, 15, 11, 12, 17, 16, 12, 13, 18, 17, 13, 14, 19, 18, 15, 16, 21, 20, 16, 17, 22, 21, 17, 18, 23, 22, 18, 19, 24, 23]
+                normal3f[] normals = [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1)] (
+                    interpolation = "faceVarying"
+                )
+                point3f[] points = [(-1, -1, 0), (-0.5, -1, 0), (0, -1, 0), (0.5, -1, 0), (1, -1, 0), (-1, -0.5, 0), (-0.5, -0.5, 0), (0, -0.5, 0), (0.5, -0.5, 0), (1, -0.5, 0), (-1, 0, 0), (-0.5, 0, 0), (0, 0, 0), (0.5, 0, 0), (1, 0, 0), (-1, 0.5, 0), (-0.5, 0.5, 0), (0, 0.5, 0), (0.5, 0.5, 0), (1, 0.5, 0), (-1, 1, 0), (-0.5, 1, 0), (0, 1, 0), (0.5, 1, 0), (1, 1, 0)]
+                bool[] primvars:sharp_face = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] (
+                    interpolation = "uniform"
+                )
+                matrix4d primvars:skel:geomBindTransform = ( (1, 0, 0, 0), (0, 1.331580543606492e-7, 0.9999999999999911, 0), (0, -0.9999999999999911, 1.331580543606492e-7, 0), (0, -7.438549687321943e-8, 1.701741814613342, 1) )
+                int[] primvars:skel:jointIndices = [0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1] (
+                    elementSize = 2
+                    interpolation = "vertex"
+                )
+                float[] primvars:skel:jointWeights = [0.43767902, 0.56232095, 0.605441, 0.39455906, 1, 0, 0.605441, 0.39455906, 0.43767902, 0.562321, 0.23470172, 0.7652983, 0.18096954, 0.81903046, 1, 0, 0.18096954, 0.81903046, 0.23470171, 0.7652983, 0.114853, 0.88514704, 0.06506716, 0.9349329, 1, 0, 0.06506715, 0.9349329, 0.11485299, 0.88514704, 0.059175473, 0.94082457, 0.009479873, 0.9905201, 1, 0, 0.009479865, 0.9905201, 0.059175465, 0.94082457, 0.031181445, 0.96881855, 1, 0, 1, 0, 1, 0, 0.031181442, 0.9688186] (
+                    elementSize = 2
+                    interpolation = "vertex"
+                )
+                texCoord2f[] primvars:st = [(0, 0), (0.25, 0), (0.25, 0.25), (0, 0.25), (0.25, 0), (0.5, 0), (0.5, 0.25), (0.25, 0.25), (0.5, 0), (0.75, 0), (0.75, 0.25), (0.5, 0.25), (0.75, 0), (1, 0), (1, 0.25), (0.75, 0.25), (0, 0.25), (0.25, 0.25), (0.25, 0.5), (0, 0.5), (0.25, 0.25), (0.5, 0.25), (0.5, 0.5), (0.25, 0.5), (0.5, 0.25), (0.75, 0.25), (0.75, 0.5), (0.5, 0.5), (0.75, 0.25), (1, 0.25), (1, 0.5), (0.75, 0.5), (0, 0.5), (0.25, 0.5), (0.25, 0.75), (0, 0.75), (0.25, 0.5), (0.5, 0.5), (0.5, 0.75), (0.25, 0.75), (0.5, 0.5), (0.75, 0.5), (0.75, 0.75), (0.5, 0.75), (0.75, 0.5), (1, 0.5), (1, 0.75), (0.75, 0.75), (0, 0.75), (0.25, 0.75), (0.25, 1), (0, 1), (0.25, 0.75), (0.5, 0.75), (0.5, 1), (0.25, 1), (0.5, 0.75), (0.75, 0.75), (0.75, 1), (0.5, 1), (0.75, 0.75), (1, 0.75), (1, 1), (0.75, 1)] (
+                    interpolation = "faceVarying"
+                )
+                rel skel:skeleton = </root/Armature_001/Armature/Armature>
+                uniform token subdivisionScheme = "none"
+                custom string userProperties:blender:data_name = "Grid"
+            }
+        }
+
+        def Xform "Armature"
+        {
+            custom string userProperties:blender:object_name = "Armature"
+            float3 xformOp:rotateXYZ.timeSamples = {
+                0: (0, -0, 0),
+            }
+            float3 xformOp:scale.timeSamples = {
+                0: (1, 1, 1),
+            }
+            double3 xformOp:translate.timeSamples = {
+                0: (0, 0, 0),
+            }
+            uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ", "xformOp:scale"]
+
+            def Skeleton "Armature" (
+                prepend apiSchemas = ["SkelBindingAPI"]
+            )
+            {
+                uniform matrix4d[] bindTransforms = [( (1, 0, 0, 0), (0, 0, 1, 0), (0, -1, 0, 0), (0, 0, 0, 1) ), ( (1, 0, 0, 0), (0, 0, 1, 0), (0, -1, 0, 0), (0, 0, 1, 1) )]
+                uniform token[] joints = ["Bone", "Bone/Bone_001"]
+                uniform matrix4d[] restTransforms = [( (1, 0, 0, 0), (0, 0, 1, 0), (0, -1, 0, 0), (0, 0, 0, 1) ), ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 1, 0, 1) )]
+                rel skel:animationSource = </root/Armature_001/Armature/Armature/Anim>
+
+                def SkelAnimation "Anim"
+                {
+                    uniform token[] joints = ["Bone", "Bone/Bone_001"]
+                    quatf[] rotations.timeSamples = {
+                        0: [(0.70710677, 0.70710677, 0, 0), (1, 0, 0, 0)],
+                        1: [(0.70710677, 0.70710677, 0, 0), (0.9996082, 0, 0, 0.027989032)],
+                        2: [(0.70710677, 0.70710677, 0, 0), (0.99463546, 0, 0, 0.10344209)],
+                        3: [(0.70710677, 0.70710677, 0, 0), (0.9774578, 0, 0, 0.21113087)],
+                        4: [(0.70710677, 0.70710677, 0, 0), (0.9432686, 0, 0, 0.3320306)],
+                        5: [(0.70710677, 0.70710677, 0, 0), (0.89442724, 0, 0, 0.4472135)],
+                        6: [(0.70710677, 0.70710677, 0, 0), (0.83920974, 0, 0, 0.5438079)],
+                        7: [(0.70710677, 0.70710677, 0, 0), (0.7869733, 0, 0, 0.61698705)],
+                        8: [(0.70710677, 0.70710677, 0, 0), (0.7447736, 0, 0, 0.6673172)],
+                        9: [(0.70710677, 0.70710677, 0, 0), (0.7170745, 0, 0, 0.6969965)],
+                        10: [(0.70710677, 0.70710677, 0, 0), (0.70710677, 0, 0, 0.70710677)],
+                        11: [(0.70710677, 0.70710677, 0, 0), (0.7122517, 0, 0, 0.70192415)],
+                        12: [(0.70710677, 0.70710677, 0, 0), (0.7271744, 0, 0, 0.68645275)],
+                        13: [(0.70710677, 0.70710677, 0, 0), (0.75127214, 0, 0, 0.6599926)],
+                        14: [(0.70710677, 0.70710677, 0, 0), (0.7839187, 0, 0, 0.62086356)],
+                        15: [(0.70710677, 0.70710677, 0, 0), (0.82404196, 0, 0, 0.5665288)],
+                        16: [(0.70710677, 0.70710677, 0, 0), (0.8695245, 0, 0, 0.49388987)],
+                        17: [(0.70710677, 0.70710677, 0, 0), (0.91649354, 0, 0, 0.4000495)],
+                        18: [(0.70710677, 0.70710677, 0, 0), (0.9588755, 0, 0, 0.28382713)],
+                        19: [(0.70710677, 0.70710677, 0, 0), (0.9890088, 0, 0, 0.14785683)],
+                        20: [(0.70710677, 0.70710677, 0, 0), (1, 0, 0, 0)],
+                        21: [(0.70710677, 0.70710677, 0, 0), (0.9890088, 0, 0, -0.14785682)],
+                        22: [(0.70710677, 0.70710677, 0, 0), (0.9588755, 0, 0, -0.28382716)],
+                        23: [(0.70710677, 0.70710677, 0, 0), (0.91649354, 0, 0, -0.40004945)],
+                        24: [(0.70710677, 0.70710677, 0, 0), (0.86952454, 0, 0, -0.49388978)],
+                        25: [(0.70710677, 0.70710677, 0, 0), (0.82404196, 0, 0, -0.5665288)],
+                        26: [(0.70710677, 0.70710677, 0, 0), (0.7839186, 0, 0, -0.6208636)],
+                        27: [(0.70710677, 0.70710677, 0, 0), (0.7512721, 0, 0, -0.65999264)],
+                        28: [(0.70710677, 0.70710677, 0, 0), (0.7271744, 0, 0, -0.68645275)],
+                        29: [(0.70710677, 0.70710677, 0, 0), (0.7122517, 0, 0, -0.70192415)],
+                        30: [(0.70710677, 0.70710677, 0, 0), (0.70710677, 0, 0, -0.70710677)],
+                        31: [(0.70710677, 0.70710677, 0, 0), (0.7170746, 0, 0, -0.69699645)],
+                        32: [(0.70710677, 0.70710677, 0, 0), (0.7447736, 0, 0, -0.6673172)],
+                        33: [(0.70710677, 0.70710677, 0, 0), (0.7869733, 0, 0, -0.61698705)],
+                        34: [(0.70710677, 0.70710677, 0, 0), (0.83920974, 0, 0, -0.5438079)],
+                        35: [(0.70710677, 0.70710677, 0, 0), (0.8944272, 0, 0, -0.44721356)],
+                        36: [(0.70710677, 0.70710677, 0, 0), (0.9432686, 0, 0, -0.3320306)],
+                        37: [(0.70710677, 0.70710677, 0, 0), (0.97745776, 0, 0, -0.21113095)],
+                        38: [(0.70710677, 0.70710677, 0, 0), (0.99463546, 0, 0, -0.10344207)],
+                        39: [(0.70710677, 0.70710677, 0, 0), (0.9996082, 0, 0, -0.027989028)],
+                        40: [(0.70710677, 0.70710677, 0, 0), (1, 0, 0, 0)],
+                    }
+                    half3[] scales.timeSamples = {
+                        0: [(1, 1, 1), (1, 1, 1)],
+                        1: [(1, 1, 1), (1, 1, 1)],
+                        2: [(1, 1, 1), (1, 1, 1)],
+                        3: [(1, 1, 1), (1, 1, 1)],
+                        4: [(1, 1, 1), (1, 1, 1)],
+                        5: [(1, 1, 1), (1, 1, 1)],
+                        6: [(1, 1, 1), (1, 1, 1)],
+                        7: [(1, 1, 1), (1, 1, 1)],
+                        8: [(1, 1, 1), (1, 1, 1)],
+                        9: [(1, 1, 1), (1, 1, 1)],
+                        10: [(1, 1, 1), (1, 1, 1)],
+                        11: [(1, 1, 1), (1, 1, 1)],
+                        12: [(1, 1, 1), (1, 1, 1)],
+                        13: [(1, 1, 1), (1, 1, 1)],
+                        14: [(1, 1, 1), (1, 1, 1)],
+                        15: [(1, 1, 1), (1, 1, 1)],
+                        16: [(1, 1, 1), (1, 1, 1)],
+                        17: [(1, 1, 1), (1, 1, 1)],
+                        18: [(1, 1, 1), (1, 1, 1)],
+                        19: [(1, 1, 1), (1, 1, 1)],
+                        20: [(1, 1, 1), (1, 1, 1)],
+                        21: [(1, 1, 1), (1, 1, 1)],
+                        22: [(1, 1, 1), (1, 1, 1)],
+                        23: [(1, 1, 1), (1, 1, 1)],
+                        24: [(1, 1, 1), (1, 1, 1)],
+                        25: [(1, 1, 1), (1, 1, 1)],
+                        26: [(1, 1, 1), (1, 1, 1)],
+                        27: [(1, 1, 1), (1, 1, 1)],
+                        28: [(1, 1, 1), (1, 1, 1)],
+                        29: [(1, 1, 1), (1, 1, 1)],
+                        30: [(1, 1, 1), (1, 1, 1)],
+                        31: [(1, 1, 1), (1, 1, 1)],
+                        32: [(1, 1, 1), (1, 1, 1)],
+                        33: [(1, 1, 1), (1, 1, 1)],
+                        34: [(1, 1, 1), (1, 1, 1)],
+                        35: [(1, 1, 1), (1, 1, 1)],
+                        36: [(1, 1, 1), (1, 1, 1)],
+                        37: [(1, 1, 1), (1, 1, 1)],
+                        38: [(1, 1, 1), (1, 1, 1)],
+                        39: [(1, 1, 1), (1, 1, 1)],
+                        40: [(1, 1, 1), (1, 1, 1)],
+                    }
+                    float3[] translations.timeSamples = {
+                        0: [(0, 0, 0), (0, 1, 0)],
+                        1: [(0, 0, 0), (0, 1, 0)],
+                        2: [(0, 0, 0), (0, 1, 0)],
+                        3: [(0, 0, 0), (0, 1, 0)],
+                        4: [(0, 0, 0), (0, 1, 0)],
+                        5: [(0, 0, 0), (0, 1, 0)],
+                        6: [(0, 0, 0), (0, 1, 0)],
+                        7: [(0, 0, 0), (0, 1, 0)],
+                        8: [(0, 0, 0), (0, 1, 0)],
+                        9: [(0, 0, 0), (0, 1, 0)],
+                        10: [(0, 0, 0), (0, 1, 0)],
+                        11: [(0, 0, 0), (0, 1, 0)],
+                        12: [(0, 0, 0), (0, 1, 0)],
+                        13: [(0, 0, 0), (0, 1, 0)],
+                        14: [(0, 0, 0), (0, 1, 0)],
+                        15: [(0, 0, 0), (0, 1, 0)],
+                        16: [(0, 0, 0), (0, 1, 0)],
+                        17: [(0, 0, 0), (0, 1, 0)],
+                        18: [(0, 0, 0), (0, 1, 0)],
+                        19: [(0, 0, 0), (0, 1, 0)],
+                        20: [(0, 0, 0), (0, 1, 0)],
+                        21: [(0, 0, 0), (0, 1, 0)],
+                        22: [(0, 0, 0), (0, 1, 0)],
+                        23: [(0, 0, 0), (0, 1, 0)],
+                        24: [(0, 0, 0), (0, 1, 0)],
+                        25: [(0, 0, 0), (0, 1, 0)],
+                        26: [(0, 0, 0), (0, 1, 0)],
+                        27: [(0, 0, 0), (0, 1, 0)],
+                        28: [(0, 0, 0), (0, 1, 0)],
+                        29: [(0, 0, 0), (0, 1, 0)],
+                        30: [(0, 0, 0), (0, 1, 0)],
+                        31: [(0, 0, 0), (0, 1, 0)],
+                        32: [(0, 0, 0), (0, 1, 0)],
+                        33: [(0, 0, 0), (0, 1, 0)],
+                        34: [(0, 0, 0), (0, 1, 0)],
+                        35: [(0, 0, 0), (0, 1, 0)],
+                        36: [(0, 0, 0), (0, 1, 0)],
+                        37: [(0, 0, 0), (0, 1, 0)],
+                        38: [(0, 0, 0), (0, 1, 0)],
+                        39: [(0, 0, 0), (0, 1, 0)],
+                        40: [(0, 0, 0), (0, 1, 0)],
+                    }
+                }
+            }
+        }
+    }
+
+    def DomeLight "env_light"
+    {
+        float inputs:intensity = 1
+        asset inputs:texture:file = @.\textures\color_121212.hdr@
+        float3 xformOp:rotateXYZ = (90, 1.2722219e-14, 90)
+        uniform token[] xformOpOrder = ["xformOp:rotateXYZ"]
+    }
+}
+

Engine/lib/assimp/test/models-nonbsd/USD/usda/simple-skin-test.usda

@@ -0,0 +1,85 @@
+#usda 1.0
+(
+    defaultPrim = "root"
+    doc = "Blender v4.1.0"
+    metersPerUnit = 1
+    upAxis = "Z"
+)
+
+def Xform "root" (
+    customData = {
+        dictionary Blender = {
+            bool generated = 1
+        }
+    }
+)
+{
+    def SkelRoot "Armature"
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, -4.371138828673793e-8, -1, 0), (0, 1, -4.371138828673793e-8, 0), (0, -1.7017418146133423, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def Skeleton "Armature" (
+            prepend apiSchemas = ["SkelBindingAPI"]
+        )
+        {
+            uniform matrix4d[] bindTransforms = [( (1, 0, 0, 0), (0, 0, 1, 0), (0, -1, 0, 0), (0, 0, 0, 1) ), ( (1, 0, 0, 0), (0, 0, 1, 0), (0, -1, 0, 0), (0, 0, 1, 1) )]
+            uniform token[] joints = ["Bone", "Bone/Bone_001"]
+            uniform matrix4d[] restTransforms = [( (1, 0, 0, 0), (0, 0, 1, 0), (0, -1, 0, 0), (0, 0, 0, 1) ), ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 1, 0, 1) )]
+        }
+
+        def Xform "Grid"
+        {
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, -4.371138828673793e-8, 1, 0), (0, -1, -4.371138828673793e-8, 0), (0, -7.438549687321938e-8, 1.7017418146133423, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+
+            def Mesh "Grid" (
+                prepend apiSchemas = ["SkelBindingAPI"]
+            )
+            {
+                float3[] extent = [(-1, -1, 0), (1, 1, 0)]
+                int[] faceVertexCounts = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4]
+                int[] faceVertexIndices = [0, 1, 6, 5, 1, 2, 7, 6, 2, 3, 8, 7, 3, 4, 9, 8, 5, 6, 11, 10, 6, 7, 12, 11, 7, 8, 13, 12, 8, 9, 14, 13, 10, 11, 16, 15, 11, 12, 17, 16, 12, 13, 18, 17, 13, 14, 19, 18, 15, 16, 21, 20, 16, 17, 22, 21, 17, 18, 23, 22, 18, 19, 24, 23]
+                normal3f[] normals = [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1)] (
+                    interpolation = "faceVarying"
+                )
+                point3f[] points = [(-1, -1, 0), (-0.5, -1, 0), (0, -1, 0), (0.5, -1, 0), (1, -1, 0), (-1, -0.5, 0), (-0.5, -0.5, 0), (0, -0.5, 0), (0.5, -0.5, 0), (1, -0.5, 0), (-1, 0, 0), (-0.5, 0, 0), (0, 0, 0), (0.5, 0, 0), (1, 0, 0), (-1, 0.5, 0), (-0.5, 0.5, 0), (0, 0.5, 0), (0.5, 0.5, 0), (1, 0.5, 0), (-1, 1, 0), (-0.5, 1, 0), (0, 1, 0), (0.5, 1, 0), (1, 1, 0)]
+                bool[] primvars:sharp_face = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] (
+                    interpolation = "uniform"
+                )
+                matrix4d primvars:skel:geomBindTransform = ( (1, 0, 0, 0), (0, -4.371138828673793e-8, 1, 0), (0, -1, -4.371138828673793e-8, 0), (0, -7.438549687321938e-8, 1.7017418146133423, 1) )
+                int[] primvars:skel:jointIndices = [0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1] (
+                    elementSize = 2
+                    interpolation = "vertex"
+                )
+                float[] primvars:skel:jointWeights = [0.43767902, 0.56232095, 0.605441, 0.39455906, 1, 0, 0.605441, 0.39455906, 0.43767902, 0.562321, 0.23470172, 0.7652983, 0.18096954, 0.81903046, 1, 0, 0.18096954, 0.81903046, 0.23470171, 0.7652983, 0.114853, 0.88514704, 0.06506716, 0.9349329, 1, 0, 0.06506715, 0.9349329, 0.11485299, 0.88514704, 0.059175473, 0.94082457, 0.009479873, 0.9905201, 1, 0, 0.009479865, 0.9905201, 0.059175465, 0.94082457, 0.031181445, 0.96881855, 1, 0, 1, 0, 1, 0, 0.031181442, 0.9688186] (
+                    elementSize = 2
+                    interpolation = "vertex"
+                )
+                texCoord2f[] primvars:UVMap = [(0, 0), (0.25, 0), (0.25, 0.25), (0, 0.25), (0.25, 0), (0.5, 0), (0.5, 0.25), (0.25, 0.25), (0.5, 0), (0.75, 0), (0.75, 0.25), (0.5, 0.25), (0.75, 0), (1, 0), (1, 0.25), (0.75, 0.25), (0, 0.25), (0.25, 0.25), (0.25, 0.5), (0, 0.5), (0.25, 0.25), (0.5, 0.25), (0.5, 0.5), (0.25, 0.5), (0.5, 0.25), (0.75, 0.25), (0.75, 0.5), (0.5, 0.5), (0.75, 0.25), (1, 0.25), (1, 0.5), (0.75, 0.5), (0, 0.5), (0.25, 0.5), (0.25, 0.75), (0, 0.75), (0.25, 0.5), (0.5, 0.5), (0.5, 0.75), (0.25, 0.75), (0.5, 0.5), (0.75, 0.5), (0.75, 0.75), (0.5, 0.75), (0.75, 0.5), (1, 0.5), (1, 0.75), (0.75, 0.75), (0, 0.75), (0.25, 0.75), (0.25, 1), (0, 1), (0.25, 0.75), (0.5, 0.75), (0.5, 1), (0.25, 1), (0.5, 0.75), (0.75, 0.75), (0.75, 1), (0.5, 1), (0.75, 0.75), (1, 0.75), (1, 1), (0.75, 1)] (
+                    interpolation = "faceVarying"
+                )
+                rel skel:skeleton = </root/Armature/Armature>
+                uniform token subdivisionScheme = "none"
+            }
+        }
+    }
+
+    def Xform "Camera"
+    {
+        matrix4d xformOp:transform = ( (0.6859206557273865, 0.7276763319969177, 0, 0), (-0.32401347160339355, 0.305420845746994, 0.8953956365585327, 0), (0.6515582203865051, -0.6141703724861145, 0.44527140259742737, 0), (7.358891487121582, -6.925790786743164, 4.958309173583984, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def Camera "Camera"
+        {
+            float2 clippingRange = (0.1, 100)
+            float focalLength = 0.5
+            float horizontalAperture = 0.36
+            float horizontalApertureOffset = 0
+            token projection = "perspective"
+            float verticalAperture = 0.2025
+            float verticalApertureOffset = 0
+        }
+    }
+}
+

Engine/lib/assimp/test/models-nonbsd/USD/usda/texturedcube.usda

@@ -0,0 +1,101 @@
+#usda 1.0
+(
+    doc = "Blender v3.1.0"
+    metersPerUnit = 1
+    upAxis = "Z"
+)
+
+def Xform "Camera"
+{
+    matrix4d xformOp:transform = ( (0.6859206557273865, 0.7276763319969177, 0, 0), (-0.32401347160339355, 0.305420845746994, 0.8953956365585327, 0), (0.6515582203865051, -0.6141703724861145, 0.44527140259742737, 0), (7.358891487121582, -6.925790786743164, 4.958309173583984, 1) )
+    uniform token[] xformOpOrder = ["xformOp:transform"]
+
+    def Camera "Camera"
+    {
+        float2 clippingRange = (0.1, 100)
+        float focalLength = 50
+        float horizontalAperture = 36
+        float horizontalApertureOffset = 0
+        token projection = "perspective"
+        float verticalAperture = 20.25
+        float verticalApertureOffset = 0
+    }
+}
+
+def Xform "Cube"
+{
+    matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-1.1853550672531128, 0, 1.9550952911376953, 1) )
+    uniform token[] xformOpOrder = ["xformOp:transform"]
+
+    def Mesh "Cube"
+    {
+        uniform bool doubleSided = 1
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 4, 6, 2, 3, 2, 6, 7, 7, 6, 4, 5, 5, 1, 3, 7, 1, 0, 2, 3, 5, 4, 0, 1]
+        rel material:binding = </_materials/Material>
+        normal3f[] normals = [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0)] (
+            interpolation = "faceVarying"
+        )
+        point3f[] points = [(1, 1, 1), (1, 1, -1), (1, -1, 1), (1, -1, -1), (-1, 1, 1), (-1, 1, -1), (-1, -1, 1), (-1, -1, -1)]
+        texCoord2f[] primvars:UVMap = [(0.625, 0.5), (0.875, 0.5), (0.875, 0.75), (0.625, 0.75), (0.375, 0.75), (0.625, 0.75), (0.625, 1), (0.375, 1), (0.375, 0), (0.625, 0), (0.625, 0.25), (0.375, 0.25), (0.125, 0.5), (0.375, 0.5), (0.375, 0.75), (0.125, 0.75), (0.375, 0.5), (0.625, 0.5), (0.625, 0.75), (0.375, 0.75), (0.375, 0.25), (0.625, 0.25), (0.625, 0.5), (0.375, 0.5)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+    }
+}
+
+def "_materials"
+{
+    def Material "Material"
+    {
+        token outputs:surface.connect = </_materials/Material/preview/Principled_BSDF.outputs:surface>
+
+        def Scope "preview"
+        {
+            def Shader "Principled_BSDF"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.03
+                float3 inputs:diffuseColor.connect = </_materials/Material/preview/Image_Texture.outputs:rgb>
+                float inputs:ior = 1.45
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0.4
+                float inputs:specular = 0.5
+                token outputs:surface
+            }
+
+            def Shader "Image_Texture"
+            {
+                uniform token info:id = "UsdUVTexture"
+                asset inputs:file = @.\textures\checkerboard.png@
+                token inputs:sourceColorSpace = "sRGB"
+                float2 inputs:st.connect = </_materials/Material/preview/uvmap.outputs:result>
+                float3 outputs:rgb
+            }
+
+            def Shader "uvmap"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname = "UVMap"
+                float2 outputs:result
+            }
+        }
+    }
+}
+
+def Xform "Light"
+{
+    matrix4d xformOp:transform = ( (-0.29086464643478394, 0.9551711678504944, -0.05518905818462372, 0), (-0.7711008191108704, -0.1998833566904068, 0.6045247316360474, 0), (0.5663931965827942, 0.21839119493961334, 0.7946722507476807, 0), (4.076245307922363, 1.0054539442062378, 5.903861999511719, 1) )
+    uniform token[] xformOpOrder = ["xformOp:transform"]
+
+    def SphereLight "Light"
+    {
+        color3f inputs:color = (1, 1, 1)
+        float inputs:intensity = 10
+        float inputs:radius = 0.1
+        float inputs:specular = 1
+    }
+}
+

Engine/lib/assimp/test/models-nonbsd/USD/usda/translated-cube.usda

@@ -0,0 +1,55 @@
+#usda 1.0
+(
+    doc = "Blender v3.1.0"
+    metersPerUnit = 1
+    upAxis = "Z"
+)
+
+def Xform "Camera"
+{
+    matrix4d xformOp:transform = ( (0.6859206557273865, 0.7276763319969177, 0, 0), (-0.32401347160339355, 0.305420845746994, 0.8953956365585327, 0), (0.6515582203865051, -0.6141703724861145, 0.44527140259742737, 0), (7.358891487121582, -6.925790786743164, 4.958309173583984, 1) )
+    uniform token[] xformOpOrder = ["xformOp:transform"]
+
+    def Camera "Camera"
+    {
+        float2 clippingRange = (0.1, 100)
+        float focalLength = 50
+        float horizontalAperture = 36
+        float horizontalApertureOffset = 0
+        token projection = "perspective"
+        float verticalAperture = 20.25
+        float verticalApertureOffset = 0
+    }
+}
+
+def Xform "Cube"
+{
+    matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-1.1853550672531128, 0, 1.9550952911376953, 1) )
+    uniform token[] xformOpOrder = ["xformOp:transform"]
+
+    def Mesh "Cube"
+    {
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 4, 6, 2, 3, 2, 6, 7, 7, 6, 4, 5, 5, 1, 3, 7, 1, 0, 2, 3, 5, 4, 0, 1]
+        normal3f[] normals = [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0)] (
+            interpolation = "faceVarying"
+        )
+        point3f[] points = [(1, 1, 1), (1, 1, -1), (1, -1, 1), (1, -1, -1), (-1, 1, 1), (-1, 1, -1), (-1, -1, 1), (-1, -1, -1)]
+        uniform token subdivisionScheme = "none"
+    }
+}
+
+def Xform "Light"
+{
+    matrix4d xformOp:transform = ( (-0.29086464643478394, 0.9551711678504944, -0.05518905818462372, 0), (-0.7711008191108704, -0.1998833566904068, 0.6045247316360474, 0), (0.5663931965827942, 0.21839119493961334, 0.7946722507476807, 0), (4.076245307922363, 1.0054539442062378, 5.903861999511719, 1) )
+    uniform token[] xformOpOrder = ["xformOp:transform"]
+
+    def SphereLight "Light"
+    {
+        color3f inputs:color = (1, 1, 1)
+        float inputs:intensity = 10
+        float inputs:radius = 0.1
+        float inputs:specular = 1
+    }
+}
+

Engine/lib/assimp/test/models-nonbsd/USD/usdc/README.md

@@ -0,0 +1,4 @@
+[blendshape.usdc](blendshape.usdc) copied from tinyusdz/models (No attribution/license cited in that project)
+[suzanne.usdc](suzanne.usdc) copied from tinyusdz/models (No attribution/license cited in that project)
+[texturedcube.usdc](texturedcube.usdc) copied from tinyusdz/models (No attribution/license cited in that project)
+[translated-cube.usdc](translated-cube.usdc) copied from tinyusdz/models (No attribution/license cited in that project)

Engine/lib/assimp/test/models-nonbsd/X3D/ref/README.md

@@ -0,0 +1,14 @@
+# X3D 3D model reference images
+
+## ChevyTahoe.x3d
+
+### Working (using IRR xml parser)
+ChevyTahoe as of 29 Sep 2020 git commit `6a4c338`, using IRR xml parsing, renders OK:
+
+<img alt="ChevyTahoe.x3d (irr_xml)" src="screenshots%2FChevyTahoe_x3d_irr_xml.png" width=320 />
+
+### Broken (using pugi xml parser)
+ChevyTahoe as of 1 Dec 2021 git commit `1614934`, using pugi xml parsing, renders with 
+missing meshes and obvious artifacts:
+
+<img alt="ChevyTahoe.x3d (pugi_xml)" src="screenshots%2FChevyTahoe_x3d_pugi_xml.png" width=320 />