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Blender is a powerful open-source tool for 2D and 3D graphics, full-on animation, compositing, and post-production. It is used to create movies and special effects, even in HD. In Blender Essential Training, Roger Wickes offers new Blender users a thorough explanation of its interface, tools, and features. He also demonstrates practical techniques and shows how to access the online and openndash;content resources of this amazing tool. Specific 3D techniques covered include navigating in 3D space, using cameras and lights, and rendering. Roger demonstrates how to rig, animate, and composite a character over live action. Exercise files accompany the course.
As you get a pretty complex mesh, it's essential that you be able to isolate different parts of the mesh and only work on the vertices associated with the particular group. So in this video, we are going to go over how to establish what's called the Vertex Groups. So we tab into Edit Mode. Let's go ahead and press A to select none of the vertices and then press B to select the vertices from his left hand. Over here in the Editing Context, in the Links and Materials panel, we have two sets of controls.
Here is the Vertex Group. To create a new vertex group, just click New and a new vertex group is loaded in and its name by default is Group. So let's go ahead and click there to rename that something meaningful like Hand.L for left. Now the reason I'm going to do that is because Blender has some automatic features for renaming and copying groups from the left to the right for symmetric objects that we talked about before. After we've created the group, we actually haven't assigned any vertices to the group.
We need to go ahead and click Assign there. And now those vertices are part of the Hand.L group. So let's press A to deselect them and now we can come over and click Select or if we want to work on just the hand group, a common workflow is to press A to select all of the vertices, deselect the hand group and then press H to hide the vertices that were selected. And so now in my virtual 3D space, I only see the hand vertices and I can zoom in and work on them in detail.
If I don't want a group anymore, of course I can just press Delete. To unhide vertices, I press Alt+H and that's a very common thing in Blender that I want to talk about a little bit. Whenever you have a hot key to do something, to undo that or do the reverse of it, you just pull the Alt key and press the same letter. So H to hide, Alt+H to unhide. Now we go through our model and create many groups. Now you can do this after that mesh has been modeled or you can do it while you are modeling the mesh and extruding those vertices, for example, to make the ear.
So now we click New, type in Ear and Assign those vertices. So now we have two groups, when you click the Selector, all of the existing vertex groups for that mesh, pop- up here and we can select them. Press A and then just click Select. So that's a little bit about defining, creating, and using Vertex Groups to isolate portions of a very complex mesh.
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