Supporting SkinnedMeshRenderer for labeling.

com.unity.perception/Runtime/GroundTruth/GroundTruthCrossPipelinePass.cs

             }
         }
 
-        public abstract void SetupMaterialProperties(MaterialPropertyBlock mpb, MeshRenderer meshRenderer, Labeling labeling, uint instanceId);
+        public abstract void SetupMaterialProperties(MaterialPropertyBlock mpb, Renderer meshRenderer, Labeling labeling, uint instanceId);
     }
 }

com.unity.perception/Runtime/GroundTruth/GroundTruthLabelSetupSystem.cs

 
         void InitGameObjectRecursive(GameObject gameObject, MaterialPropertyBlock mpb, Labeling labeling, uint instanceId)
         {
-            var meshRenderer = gameObject.GetComponent<MeshRenderer>();
-            if (meshRenderer != null)
+            var renderer = (Renderer)gameObject.GetComponent<MeshRenderer>();
+            if (renderer == null)
+                renderer = gameObject.GetComponent<SkinnedMeshRenderer>();
+
+            if (renderer != null)
-                meshRenderer.GetPropertyBlock(mpb);
+                renderer.GetPropertyBlock(mpb);
-                    pass.SetupMaterialProperties(mpb, meshRenderer, labeling, instanceId);
+                    pass.SetupMaterialProperties(mpb, renderer, labeling, instanceId);
-                meshRenderer.SetPropertyBlock(mpb);
+                renderer.SetPropertyBlock(mpb);
             }
 
             for (var i = 0; i < gameObject.transform.childCount; i++)

com.unity.perception/Runtime/GroundTruth/IGroundTruthGenerator.cs

         /// Called by <see cref="GroundTruthLabelSetupSystem"/> when first registered or when a Labeling is created at runtime.
         /// </summary>
         /// <param name="mpb">The MaterialPropertyBlock for the given meshRenderer. Can be used to set properties for custom rendering.</param>
-        /// <param name="meshRenderer">The MeshRenderer which exists under the given Labeling.</param>
+        /// <param name="renderer">The Renderer under the given Labeling.</param>
-        void SetupMaterialProperties(MaterialPropertyBlock mpb, MeshRenderer meshRenderer, Labeling labeling, uint instanceId);
+        void SetupMaterialProperties(MaterialPropertyBlock mpb, Renderer renderer, Labeling labeling, uint instanceId);
     }
 }

com.unity.perception/Runtime/GroundTruth/InstanceSegmentationCrossPipelinePass.cs

             }
         }
 
-        public override void SetupMaterialProperties(MaterialPropertyBlock mpb, MeshRenderer meshRenderer, Labeling labeling, uint instanceId)
+        public override void SetupMaterialProperties(MaterialPropertyBlock mpb, Renderer renderer, Labeling labeling, uint instanceId)
         {
             mpb.SetInt(k_SegmentationIdProperty, (int)instanceId);
     #if PERCEPTION_DEBUG

com.unity.perception/Runtime/GroundTruth/RenderedObjectInfoGenerator.cs

         }
 
         /// <inheritdoc/>
-        public void SetupMaterialProperties(MaterialPropertyBlock mpb, MeshRenderer meshRenderer, Labeling labeling, uint instanceId)
+        public void SetupMaterialProperties(MaterialPropertyBlock mpb, Renderer renderer, Labeling labeling, uint instanceId)
         {
             if (m_LabelingConfiguration.TryGetMatchingConfigurationEntry(labeling, out _, out var index))
             {

com.unity.perception/Runtime/GroundTruth/SemanticSegmentationCrossPipelinePass.cs

             DrawRendererList(renderContext, cmd, RendererList.Create(renderList));
         }
 
-        public override void SetupMaterialProperties(MaterialPropertyBlock mpb, MeshRenderer meshRenderer, Labeling labeling, uint instanceId)
+        public override void SetupMaterialProperties(MaterialPropertyBlock mpb, Renderer renderer, Labeling labeling, uint instanceId)
         {
             var entry = new LabelEntry();
             foreach (var l in m_LabelingConfiguration.LabelEntries)