The Very Basics, II

This set of three short tutorials are for those brand new to both 3D and Design3D SE. In these short videos basic introductions to these topics are discussed.: 1, grids and the active grid; 2, creating objects; 3, cameras

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  1. shepherd

    In regards to the Part 1 video. When you activate the “X” grid as you demonstrated, you can now freely move the object about on the “Y” axis constraining your movements to that particular grid. Now while you are doing that, are you also pulling & pushing the object in & out of space on the “Z” grid? When you activate the grid that’s perpendicular, are you in essence activating the 2 other grids at the same time? In this example, does it remain on the Y axis (thru activating the X grid) yet also move freely about the “Z” space?

  2. Chris Tyler

    Ok, think of it this way. Imagine you are in a 2D application like Illustrator or Photoshop. The canvas uses a coordinate system, left to right (X) and Up and Down (Y).

    This grid allows you to move things in a combination of X and Y coordinates. So you can’t call it the X grid or the Y grid, because it lets you move things freeform along both axis.

    So we call it the Z grid in 3D space.

    A grid in 3D space allows you to constrain an action in a quasi-2D way. In fact we can generate custom grids that don’t adhere to standard axis.

    So the key here is that when a grid is active, movement is freeform, but not OFF the grid.

    If you want it to move off the grid in a perpendicular fashion, you have to either change grids, or you can specifically activate a perpendicular guide.

    So for instance, if the Z grid is active (freeform X and Y movement), press the Shift+Command keys. A guide perpendicular to the grid appears. Now you can grab the item and move it off the grid.

    It’s really not too confusing once you mess around with it for a while. It also gives you significant control over modeling complex shapes by controlling how your 2D mouse movements are translated into 3D space. That and how you can control the exact placement of 3D geometry relative to a grid.

  3. Kanefire

    In part 3 you target the object with the camera. The drop-down menu on mine only has the checked “none” option. How do I fix this.


  4. Kanefire

    Thanks Chris. And it helps not to name an object a common name like “sphere”… That took a minute to figure out.

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