Hi All,
I can't speak for all 3, but hexagon is my regular modeler, and yes, I use it sometimes with GLBasic.
Works fine, and is a fast easy modeler.
I use it alongside several others, including Modo, Wings3D, AC3D, DeepMesh and others.
They all have good and bad points.
Additionally, I use Carrara, which is also from Daz, and the companion product for Hexagon (actually Hex is the companion for Carrara).
Between the two, and a few nice 3rd party Carrara Plugins, there is not much you can't do with them.
Bryce I have played with in the past, and while I personally would not choose it as a modeler, it would be nice for quickly making heightmap based terrains, and could probably also be used for rendering nice skybox or skydome textures.
That said, Carrara has similar capabilities in both areas, and I use Carrara, so have not loaded Bryce in a long time.
To the point, yes, at the very least, Bryce and Hex could be useful with GLBasic, and Hexagon I highly recommend - despite the fact it can be buggy - though I have found few if any 3D design apps which are bug free, especially considering the price point.
Regards,
Dave