Subtitles of the Movie

Continuing with our discussion of working with modifiers, Let's take a look at the bend axis parameter which you can set to either X, Y or Z. Now when you first see this, you might assume that this has to do with this X, Y, Z right here, but it doesn't. This is actually the world space tripod and it shows the directions in world space, the entire world of the Max scene. The X, Y, Z axis parameter here actually refers to the X, Y, Z axis of the bend gizmo, which by default are aligned with the X, Y, Z axis of the object. So for now, we can just think of these as the axis of the object, also referred to as the local coordinate system, local to the object. So while we are setting this parameter, its handy to have the local axis displayed when you click on the object. And to display the local axis you can go up to the reference coordinate systems selector and select local. Now this tripod here represents the local coordinates system. And you can see that the Z axis runs in this direction and that's the bend axis. So it’s lines running in this direction that are going to be bent, and that is indeed the lines that are bent. If we take that limit off it becomes even clearer. This is the X direction here, those lines are not bending and this is the Y direction and those lines are not bending. If you have trouble reading this by the way, one thing you can do is just go up and click on the move tool. The Z axis will be shown in blue, the X in red, the Y in green. Be careful not to move the object though, if that's not what you are meaning to do. So if I select the X axis now, you can see that the bend gizmo is bending along the X axis. That base can't bend because it's only got one segment, that's the width. We put more segments there, go back to the bend, now you can see that's bending nicely. So why don’t we widen our view a little bit here? First why don’t we just compare the coordinate systems of these two boxes? Z is going that way here, Y going that way, and this one, Y is going that way, Z is going that way. So the coordinate systems of different objects don't necessarily match, never the less, The bend axis refers to the local coordinate system of this object. So for instance, this is on the Z which is this direction, and you can see that it’s lines that were going in this direction that were bent. Go down to the box for a minute. You can see the lines that were going in this direction are the ones that were bent. Lines going in this direction are still straight. Lines going in this direction are still straight. Let's go down and put a few more segments in the X direction here and come back up and let it bend in the X direction. Let's go back down to the box, this is the X direction so it will be lines going in this direction. Let’s watch that bend. The lines going in this direction, X direction are bending. Bend and most other modifiers are object space modifiers, they are applied in reference to the objects own local coordinate system. So it's the local axis that you want to be referring to when you set this axis parameter. ts own local coordinate system. So it's the local axis that you want to be referring to when you set this axis parameter.