Por lo que veo hace más de un mes que ha salido una nueva versión de 3DSimEd que en principio soporta el rFactor 2.
Esta es la página oficial: http://www.sim-garage.co.uk/
Y el foro de USPits que sirve como soporte y ayuda para el programa: http://www.thepits.us/board/viewforum.php?f=25
Novedades del programa:
Major Enhancements in 3DSimED 3
DirectX has replaced OpenGL as the 3D API. This should improve compatibility, has seen a performance gain and it is easier to port game shaders as nearly all games are now written using DirectX. Version 9 of the API has been adopted to ensure maximum coverage of modern cards/and Windows OS.
Non-modal editing allowing the View/Display functions to be used while editing a vertex, face, object or material, so that the model can be freely zoomed in, rotated etc without exiting the edit. These editing functions are all now 'live', all modifications are immediate there is no 'apply' button.
Full undo/redo stack, all edits can be undone and then redone.
Import and Export of rFactor2 .scn and .gmt.
Support for night lighting allowing the user to visualize night scenes.
Shadow rendering including support for DirectX hardware assisted shadows.
Improved selection: after right-clicking the user will be presented with sub-menus of any objects or materials beneath the cursor, these menus can be navigated to highlight individual objects and materials greatly simplifying the editing of complex models.
Improved custom shader support including the ability to add to add custom vertex & pixel shaders.
Remember, 3DSimED 3 is not finished, there are more features to add and there will be bugs but it should be possible to be productive. The completed product will be available, at no extra cost, to all those who purchase the beta.