New with some questions

Hi, I’m less than a week new to blender3d. I understand the basic concepts to basic modeling in blender, but I have a few questions I would like to ask:

-Is it possible to hide/disable the grid?
-Is there a shortcut key for the: “Limit selection to visible” button?
-And why does blender lag w/ older graphics cards when enabling a background image(I mean, its only 2d).

EDIT: By the way… what’s the difference between ortho view and perspective view. I pressed numpad5 to toggle between the two but the only difference I can see is different angle, when I could just change angle using middle mouse button.

hi e barroga
Workaround the background image problem is a uv mapped plane, when graphics card is too slow.

Ortho does not have angle at all, its very usefull in modeling and aligning things.

Grid: Use the View menu->View properties window to turn off the grid floor in any view except Top/Front/Side. I don’t think you can turn it off in these views except by changing its color in the theme (User Preferences window).

Unfortunately there’s currently no shortcut for Limit to Visible.

The background image problem has been raised a lot on this forum, please search.

You’ll see more difference between ortho/perspective with large objects or objects far away from each other. Perspective view is just what the name implies: farther objects will look smaller, and parallel lines will converge, similar to natural viewing. Orthographic puts everything at the same scale (no convergence or foreshortening) and is good for comparing dimensions of objects.

Wow too late. :0

if by “old” you mean “ati graphics cards in windows” then it’s because ati’s drivers suck

No, I think mine’s is NVidia.

EDIT: About the uv-mapping suggestion, you’d have to be in Textured(alt+Z) right? But, this solution dies out when you need to switch to wireframe(ZKey). How would I solve this?

About the uv-mapping suggestion, you’d have to be in Textured(alt+Z) right? But, this solution dies out when you need to switch to wireframe(ZKey). How would I solve this?

Set the view to textured mode with Alt-Z, then just for the objects you are modeling, in the Object(F7) panels set Drawtype to Wire.

Cool, didn’t even know that DrawType button in the panel existed, thanks.