Any object will disappear if it is closer than clip_near or farther than clip_far. Use fog and choose a good clip_far value to increase the frame rate in your huge levels.

function main()
{
    ..................................
    camera.fog_end = 3000;
    camera.clip_far = 3500;
}
 
 
True color models in Med

Med uses DirectX 8 now, so you can see your models in true color.

Old Med                                                                       New Med

 
Med background image

Now you can set an image as background for the 2D and 3D views. View the models the way they would look in your game and (even more important) create new models from existing pictures!