Detail maps

Blitz3D Forums/Blitz3D Programming/Detail maps

..my terrain is mesh terrain, single mesh terrain with one color map assigned to it...here you can see how is it looking, and I tried to mark areas whats bugging me actually...

how to properly use alpha maps and how to set up my code to reveal/hide specific detail maps when camera reach them?..i am a bit confused with this so some simple help with basic code structure is welcome..