Automatically, I do not know program which makes it.
Personally , fan of Blitz3D, the best engine for me to convert of the code Blitz3D
is Dreamotion3D. Example:
Blitz3D code:
Graphics3D 640,480,0,3
SetBuffer BackBuffer()
mesh = CreateMesh()
surf = CreateSurface(mesh)
v0 = AddVertex (surf ...