The engine HAS to render frames while you’re editing, otherwise you won’t be able to see what you’re doing 
If you want to move cube A 100 units to the left, how can you do that without seeing it?
The engine HAS to render frames while you’re editing, otherwise you won’t be able to see what you’re doing
If you want to move cube A 100 units to the left, how can you do that without seeing it?