UnityEditor.InternalMeshUtil.GetCachedSkinnedMeshSurfaceArea C# (CSharp) Method

        public static extern float GetCachedSkinnedMeshSurfaceArea(SkinnedMeshRenderer skinnedMeshRenderer);
        [MethodImpl(MethodImplOptions.InternalCall)]

        public bool EditRenderers()
        {
            GameObject[] objArray;
            Type[]       types = new Type[] { typeof(MeshRenderer), typeof(SkinnedMeshRenderer) };
            Renderer[]   selectedObjectsOfType = SceneModeUtility.GetSelectedObjectsOfType <Renderer>(out objArray, types);
            if (objArray.Length == 0)
            {
                return(false);
            }
            EditorGUILayout.InspectorTitlebar(selectedObjectsOfType);
            SerializedObject obj2 = new SerializedObject(objArray);

            EditorGUI.BeginDisabledGroup(!SceneModeUtility.StaticFlagField("Lightmap Static", obj2.FindProperty("m_StaticEditorFlags"), 1));
            SerializedObject so = new SerializedObject(selectedObjectsOfType);
            float            lightmapLODLevelScale = LightmapVisualization.GetLightmapLODLevelScale(selectedObjectsOfType[0]);

            for (int i = 1; i < selectedObjectsOfType.Length; i++)
            {
                if (!Mathf.Approximately(lightmapLODLevelScale, LightmapVisualization.GetLightmapLODLevelScale(selectedObjectsOfType[i])))
                {
                    lightmapLODLevelScale = 1f;
                }
            }
            float lightmapScale     = this.LightmapScaleGUI(so, lightmapLODLevelScale) * LightmapVisualization.GetLightmapLODLevelScale(selectedObjectsOfType[0]);
            float cachedSurfaceArea = !(selectedObjectsOfType[0] is MeshRenderer) ? InternalMeshUtil.GetCachedSkinnedMeshSurfaceArea(selectedObjectsOfType[0] as SkinnedMeshRenderer) : InternalMeshUtil.GetCachedMeshSurfaceArea(selectedObjectsOfType[0] as MeshRenderer);

            this.ShowClampedSizeInLightmapGUI(lightmapScale, cachedSurfaceArea);
            EditorGUILayout.PropertyField(so.FindProperty("m_ImportantGI"), s_Styles.ImportantGI, new GUILayoutOption[0]);
            LightmapParametersGUI(so.FindProperty("m_LightmapParameters"), s_Styles.LightmapParameters);
            GUILayout.Space(10f);
            this.RendererUVSettings(so);
            GUILayout.Space(10f);
            this.m_ShowBakedLM = EditorGUILayout.Foldout(this.m_ShowBakedLM, s_Styles.Atlas);
            if (this.m_ShowBakedLM)
            {
                this.ShowAtlasGUI(so);
            }
            this.m_ShowRealtimeLM = EditorGUILayout.Foldout(this.m_ShowRealtimeLM, s_Styles.RealtimeLM);
            if (this.m_ShowRealtimeLM)
            {
                this.ShowRealtimeLMGUI(so, selectedObjectsOfType[0]);
            }
            if (LightmapEditorSettings.HasZeroAreaMesh(selectedObjectsOfType[0]))
            {
                EditorGUILayout.HelpBox(s_Styles.ZeroAreaPackingMesh.text, MessageType.Warning);
            }
            if (LightmapEditorSettings.HasClampedResolution(selectedObjectsOfType[0]))
            {
                EditorGUILayout.HelpBox(s_Styles.ClampedPackingResolution.text, MessageType.Warning);
            }
            if (!HasNormals(selectedObjectsOfType[0]))
            {
                EditorGUILayout.HelpBox(s_Styles.NoNormalsNoLightmapping.text, MessageType.Warning);
            }
            obj2.ApplyModifiedProperties();
            so.ApplyModifiedProperties();
            EditorGUI.EndDisabledGroup();
            GUILayout.Space(10f);
            return(true);
        }