Is there a way to make the billboards NOT rotate with the 3D view?
Billboards are suppose to always face the camera. They are a sort of simplified way of achieving a 3D look. But if for some reason you don't want them to face the camera you can go into the Drawing Library and remove the check beside Always Face Camera.
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Thanks! I need to learn how to create my own backgrounds for a thick tree line. Is there a tutorial for that.
Backgrounds are just images. Nothing special about them unless they are panoramic, which is a bit more complicated to make and requires more advanced imaging software to stitch together multiple images. Just place you background images in C:\SoftPlan\3D\Textures\Backgrounds and you will be good to go.