Hi Nawrot, thankyou for replying so fast - the whole problem I have is because I have a group of houses and when i select a housetype model there is a feature that ‘isolates’ from the rest of the development, it does this by using a virtual texture map that masks the opacity of materials (excluding the plot that’s selected). This resualts in only the plot visible, however this caused visual artefacts in the glass reflection still showing other windows from other houses in the reflection of the isolated plot.
So I created a utility widget that applied a tag to only selected components with specefic names such as windows, doors, dormers, canopys etc.. this worked fine.
My next step was to hide these objects in scene, however when I had originally done this on the fly there was a noticeable half second or so between the plot isolating and the windows disappearing because of all the calculations that had to be done (what you said too expensive).
Long storey short… I figured if I could get most of that calculated on begin play, I can just reference the meshes with that tag, stored in a variable.
