Navigation API > API/Plugins > API/Plugins/MeshModelingToolsExp > API/Plugins/MeshModelingToolsExp/UCubeGridTool References Module MeshModelingToolsExp Header /Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Public/CubeGridTool.h Include #include "CubeGridTool.h" Source /Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Private/CubeGridTool.cpp void InvalidatePreview ( bool bUpdateCornerLineSet ) Copy full snippetvoid InvalidatePreview ( bool bUpdateCornerLineSet ) Parameters Name Description bUpdateCornerLineSet This can be set to false when the invalidation is a result of a grid transform change (which is applied to the line set via the LineSets->SetTransform), or when the corner shape otherwise doesn't change. Usually it can be left to true.