scott wrote:
>> Roughly what I was dreaming of doing was to marry the type of drawn 
>> map info in Google Maps with the camera freedom of Google Earth, but 
>> without any of the sophisticated resolution adjustment in either 
>> presentation. All I was really envisioning was to control the movement 
>> of a camera around say a box with a diagram on it and maybe a coupla 
>> other boxes to mark buildings.  But rotating and zooming the object 
>> would be a little underwhelming without being able to dolly the camera 
>> too.  Because dollying a character through a game scene seemed such a 
>> common thing to do I was a little surprised at my initial findings.
> 
> 
> If you write something that uses a 3D API like OpenGL or DirectX, you 
> basically can set the camera in exactly the same way as you would in 
> POV. So in your code you just need to calculate the camera position and 
> "look at" vector, then pass that on to the API before drawing your scene.
> 
> Creating some code to take keyboard/mouse input and generate the camera 
> vectors is relatively straightforward if you're comfortable working with 
> 3D vectors and geometry.  For example, you could use the arrow keys to 
> move left/right and forward/back relative to the camera look_at 
> direction, and the mouse x/y inputs to set the look_at vector.
> 
> 
That's encouraging, thanks.  I think I'm going to give it a shot.

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