I am trying to render an extremely large scene… think of an animation of a plane fiying over a large area. I am running into limitations where I can make the ground plane very large, but I can only see parts of it at one time in perspective mode. I tried increasing the clip value (Shift-F7), but it limits me to 200 units. I increased the clip limit of the camera itself but this only lets me see at great distances when the sceen is rendered. Is this a hard limitation of blender or does anyone know of a way around this.
Also, does anyone have any good tips on representing real world measurements in Blender. For example if I draw a house with walls that are 8 units high (if I did a foot for a unit) the walls end up looking much larger then they would in real life. Any suggestions on this would be greatly appreciated.
i’m doing a house model in blender at the moment: in metric, so I’m using 1 blender unit = 0.1m. (shouldn’t make much difference though)
If I do a flyby with the camera at normal eyelevel (in my example approx 17 blender units), the result looks fine: everything is normally proportioned.
In a previous animation I did, I found that 1/2 scale rendered somewhat acceptable results… that is I drew a house with what was supposed to look like 8 foot high walls as approximately 4 blender units high. It was all aproximation though, I was wondering if there was a more scientific way to determine how big things should be drawn… rather than just what looks right.
I can scale objects down to be able to fit more in the scene, but then things would just look small- like i were flying over a scale model instead of real scenery. Now i’m playing around with the Lens (default 35) value… which seems to make items look bigger or smaller- but I’m not quite sure what I’m doing with that yet. I’m afraid I might get funky effects like fish-eye and the like.
Hm, I wonder that your ClipEnd value in the Buttons Window (View Buttons; shift+F7) is 200. My is 1000.
The scale of the model actually should make no difference as long the size is within blender’s limits and the relative distance of the camera is the same.
The Lens value is similar to the lenses of a real camera. Lens 35 is a slight wide-angle lense, 50 would be kind of the normal-angle lense, larger values are telephoto lenses. Primary, it has nothing to do with your scale.
To make scale models you can define the blender units as you prefer. Using different sreens with different grid sizes is very usefull . I. e. screen 1, grid size = 1 BU = 1m, screen 2 grid size 0.1 BU = 10 cm, etc.
You can do this yourself or download IamInnocents blend file: https://blenderartists.org/forum/viewtopic.php?t=12033&highlight=scale+models
Here you will find other tips for making scale models too.
Thank you tordat for the link, I found lotsa useful stuff from that previous discussion.
I guess I’ll just have to keep my model under 1000 units across (as previously mentioned) because of the blender limit. It’s too bad it’s not really high like 65535 or something, i wonder if someone would consider expanding it in a futre release.
