This is the feature of DarkBasic pro ..
No no no, those are the features they CLAIM are in DB Pro. Read the forums for an up to date list of which ones work, which ones don't, which ones broke things which used to work and which ones crash violently.
Oh, and if you think cubemaps are slow with Blitz, just try them with DB Pro. When I inquired about them, I was told they were pretty slow and barely useable on a Radeon 9700 Pro. Someone else said it took around 15 seconds to refresh a cubemap.