add timesampled primvar test scene.

models/texture-plane-indexed-primvar-uv-timesampled-002.usda

@@ -0,0 +1,130 @@
+#usda 1.0
+(
+    defaultPrim = "root"
+    doc = "Blender v4.1.1"
+    metersPerUnit = 1
+    upAxis = "Z"
+)
+
+# Both UV coord and UV primvar indices have timesampled value.
+
+def Xform "root" (
+    customData = {
+        dictionary Blender = {
+            bool generated = 1
+        }
+    }
+)
+{
+    def Xform "Grid"
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def Mesh "Grid" (
+            prepend apiSchemas = ["MaterialBindingAPI"]
+        )
+        {
+            uniform bool doubleSided = 1
+            float3[] extent = [(-1, -1, 0), (1, 1, 0)]
+            int[] faceVertexCounts = [4, 4]
+            int[] faceVertexIndices = [0, 1, 4, 3, 1, 2, 5, 4]
+            rel material:binding = </root/_materials/Material_001>
+            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)] (
+                interpolation = "faceVarying"
+            )
+            point3f[] points = [(-1, -1, 0), (0, -1, 0), (1, -1, 0), (-1, 1, 0), (0, 1, 0), (1, 1, 0)]
+            bool[] primvars:sharp_face = [1, 1] (
+                interpolation = "uniform"
+            )
+            texCoord2f[] primvars:UVMap = [(0, 0), (0.5, 0), (0.5, 1), (0, 1), (1, 0), (1, 1)] (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:UVMap.timeSamples = {
+                0: [(0, 0), (0.5, 0), (0.5, 1), (0, 1), (1, 0), (1, 1)],
+                10: [(0, 0.1), (0.5, 0.1), (0.5, 0.9), (0, 0.9), (1, 0.1), (1, 0.9)],
+            }
+            int[] primvars:UVMap:indices.timeSamples = {
+                0: [0, 1, 2, 3, 1, 4, 5, 2],
+                10: [4, 2, 1, 0, 2, 5, 4, 1]
+            }
+            uniform token subdivisionScheme = "none"
+        }
+    }
+
+    def Scope "_materials"
+    {
+        def Material "Material_001"
+        {
+            token outputs:surface.connect = </root/_materials/Material_001/Principled_BSDF.outputs:surface>
+
+            def Shader "Principled_BSDF"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.03
+                color3f inputs:diffuseColor.connect = </root/_materials/Material_001/Image_Texture.outputs:rgb>
+                float inputs:ior = 1.5
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0.5
+                float inputs:specular = 0.5
+                token outputs:surface
+            }
+
+            def Shader "Image_Texture"
+            {
+                uniform token info:id = "UsdUVTexture"
+                asset inputs:file = @./textures/texture-cat.jpg@
+                token inputs:sourceColorSpace = "sRGB"
+                float2 inputs:st.connect = </root/_materials/Material_001/uvmap.outputs:result>
+                token inputs:wrapS = "repeat"
+                token inputs:wrapT = "repeat"
+                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"
+        {
+            float3[] extent = [(-0.1, -0.1, -0.1), (0.1, 0.1, 0.1)]
+            color3f inputs:color = (1, 1, 1)
+            float inputs:diffuse = 1
+            float inputs:exposure = 0
+            float inputs:intensity = 318.30988
+            bool inputs:normalize = 1
+            float inputs:radius = 0.1
+            float inputs:specular = 1
+        }
+    }
+
+    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
+        }
+    }
+}
+