For Paul: the difference between object mode and edit mode.
I will try to show how changing a mesh in edit mode can affect how it looks in object mode.
So, I have created a plane. Going into Edit mode I subdivided the plane into 50 parts
Now, in Object mode, I selected Wireframe in the dropdown menu
and adjusted the wireframe amount to suit:
Now, while in Edit mode the plane still looks the same as in the first image. However, we can edit the plane mesh while in edit mode. Let's extrude along one edge: While in Edit mode, the extrusion looks like stretched rectangles.
Now, back in Object mode, the wireframe will reflect this extrusion as a wireframe:
Back in edit mode, let's add cuts to the portion we extruded:
Back in Object mode, we can see the results:
Let's go further. Let's extrude another edge upward and give it some cuts:
Now, back in Object mode, viola, and upward wiremesh:
Let's play with the mesh in edit mode and see what heppens:
Meanwhile, back in Object mode:
So, playing with mods is a non destructive way of manipulating a mesh. The actual object (the one in edit mode), is not a wireframe, so if we remove the modifier, we still have the actual plane without destroying it. Once we apply the modifier using the dropdown menu, the actual object is altered.
So that if we go back into edit mode, the wiremesh is visible, and we can alter that, but the alteration is part of the actual object and the modifications can be more minute, such as moving a single point, or moving multiple point to create the object we desire:
Modifiers are extremely useful in making broad sweeps of change to an object. Let's to an array for instance:
I have created a small wireframe grid, and want to make a windmill pattern with it. Using this one mesh, and adding an Axis controlling object as a controller for the mesh let's see what we can do: In the modifier dropdown menu let's choose Array.
Set the number to 11 and offset to whatever separates the meshes: So from one mesh, I now have 11 identical meshes.
Ok, let's add the controller: Under the object dropdown menu go to "Empty" and choose "Plain axis". Rename it from "Empty" to "Axis" or whatever name you want to give it. ie: controller, rotator, etc
Check the Object" box (In blue) in the Array modifier tab (In red) of the Plane then with the dropper select "Axis" (in green) or whatever you named it). Now, that Axis controls our wireframe. Select the axis object and rotate it on the Z axis to make a circle. Rotate along other axis to shift the wireframe mesh to more of a blade angle. Viola, and windmill!!
I will try to clarify anything confusing!! If that is possible...