I had these exact problems a few days ago. The sollution is a mixture of moving the camera until i passes a specific distance then "normalizing" your environment so that everything shifts and you are back at 0,0,0 with you camera. This way you arent doing update math every code pass.
Here is the relevant link : http://www.blitzbasic.com/Community/posts.php?topic=36648
There is yet another link in there that leads you to a discussion on BlitzCoder that will provide the code and explanation to use it. My ranges were from 10,000,000,000 down to .000001 and my gfx became a huge mess as my camera moved around and I tried working on those scales. I've now managed to get everthing working great and no longer have "far from center" graphics anomolies.
Good luck!
Here is the relevant link : http://www.blitzbasic.com/Community/posts.php?topic=36648
There is yet another link in there that leads you to a discussion on BlitzCoder that will provide the code and explanation to use it. My ranges were from 10,000,000,000 down to .000001 and my gfx became a huge mess as my camera moved around and I tried working on those scales. I've now managed to get everthing working great and no longer have "far from center" graphics anomolies.
Good luck!