   Size of objects
  Alright,Most 3d applications measure things in units, but how big is this unit? My problem is i have to get somthing to the right scale, my friend modeled a box and he said it was 120 meters by 120 meters. But now my camera speaks differently, the box only seems a few meteres big!Do I have to adjust the scale of the box, or do i adjust the size of the camera (if that makes sense)Cheers.   
  a unit is whatever you want it to be.  It is up to you to define what the scale in your game is (what a unit maps to).  That said, in your current situation what you should first do is decide (on paper) what one unit will correspond to in your virtual world.  Then scale the box so that it is the size you want it to be.  This scaling should really be done in a 3D modeling program of some kind, so that the box you are loading into your game is already the right size.In summery, a unit is a unit, nothing more.  It has whatever meaning you decide to give it.;  You just assign a scale to each graphics unit. For instance, 1.0 unit = 6 ft, for instance.You than scale this accordingly. When you model it, you can set up your modeller to do this correctly. You than just have to make sure everything uses the same scale factors. For instance, you might want to model gravity to be 32.0ft/sec / 6.0 ft/unit. You just watch that all your units in your formulas are correct, this is the most common source of errors people have with their formulas.I hope it helps.   ;  I also had trouble with this, and realized exactly what the above two posts are saying.  Size is a relative thing, you could have a building 30 units or 1 unit, and as long as there was nothing next to compare it to, you couldn't tell the difference.  Levi   ;  Normally people decide to make units equivelant to 1m, but it is completely up to the programmer - normally it is just used to times the world transform by   ;  I made my units the right size in my modeling program but in the game they are too small.Aka the camera seems too "big", can i adjust the camera? or should I scale all the objects?   ;  I would imagine it would probably be wise to consider the near and far clipping planes when deciding your scale...   ;  If you have everything the size that you want (such as one unit = one meter, or so forth), and everything looks the right size in relation to each other (in game), then scaling the objects would be a bad idea.  There should actually be no problem here, your camera is simply a ways away from the objects.  Adjust your camera code to hug the objects a bit tighter (zoom in) and you should be able to get them the size that you want (visually).Note that this is only visual.  How you interpret your units has a direct effect on all math you perform on your objects, and hence is logical.  Fixing a simple visual error is trivial compared to the headache a logical error can produce.  Scaling your objects would probably produce a logical error.  I would stay away from that.   ;  Lets say you load 2 boxes, one 100units on a side, the other 1unit on it's side.You should be able to see that when they are displayed with your current camera, that they are infact properly perportioned to eachother.If you want one unit == 1 meter, but you let your camera move arround at 500 units a second, then your boxes are going to feel small.If you want them to be tall buildings, the camera's position is important. If you don't put the camera .25 units over an 1 unit up from the base side of the box it won't look tall enough for you.So there are other factors involved than just making sure everything is the right size.  The way you position and move the camera is what gives any object it's look and feel.   ;Quote:Original post by Anonymous PosterI made my units the right size in my modeling program but in the game they are too small.Aka the camera seems too "big", can i adjust the camera? or should I scale all the objects?It sounds like the camera is too far away. What is the distance to the objects and how big are they?You should move the camera rather than scale the models. If you later add different models, you will have to scale them too, and possibly by a different amount. A consistent scale is important to avoid problems.   