It kind of depends on how it is done. Surface changes stall the 3D pipeline (that's the way the hardware is), so there will always be an penalty for lots of (different) surfaces. On my 3D demo, I batch all polygons that share the same texture together, so it goes pretty much as fast as the hardware will allow.
You aren't so limited to the inbuilt functions as you were with the previous Blitz incarnations, so you can 'Do it your way' to a certain extent.
You aren't so limited to the inbuilt functions as you were with the previous Blitz incarnations, so you can 'Do it your way' to a certain extent.