Alright, welcome back guys and we are continuing to expand our knowledge about how to work with geometry before we go ahead and gray box our level. And in this one we're going to talk about geometry editing. And the goal here is to demonstrate the different ways geometric brushes can be manipulated to create all kinds of interesting shapes. To help with this discussion, I'm going to bring in a box brush. And next one I'm going to do is I am going to kick the editor into a different mode. Currently we are in place mode, we're going to jump on over to this tab over here known as geometry editing mode.

And you can also get there with the hotkey of shift plus five. And you can see that as soon as I clicked on this, my geometric brush here changed to have this kind of purple ish outline. And right away Well, we can demonstrate Here is how to manipulate our box brush in three simple ways. One way you can change the shape of this brush is to simply select what is known as a face that's a flat side. So I'm going to choose this left side over here, and I'm just going to grab this arrow using my left click and hold. And I can obviously extend it out like so.

You can also do this with lines by lines. We're talking about these thin lines right here and these are honestly pretty hard to select but you'll know you've gotten one when it turns orange. So I can simply select that and move it up into the air. Create a little bit of a ramp that is super useful. Additionally, you can select these little corner pieces here and move those out as well. To create to shape something like that, now you got a ramp that sort of extends from a skinny, skinny mouth to a wider top portion.

Okay, you can see as you're modifying the shape here, it's going to add some polygons where it needs to. Okay, next thing I am going to do is delete this out because I want to start off fresh with a with a new box brush here. And you may try to select it and then go delete like that and you're like, Oh my gosh, what did I just do, that's not what I meant to do. So just demonstrating what to do when you want to actually delete out the brush is jump out of geometry edit mode, so you could simply come back into place mode and select it and then delete it or you can select the box brush here in your world outliner. Whoops, tap the delete key and that will get rid of it as well. So I'm going to jump back into place mode here.

Come under geometry and add another box. ZBrush and then jump back into geometry edit mode to show off the next thing. Okay, with our box here, I'm going to attempt to extrude it. What I mean by that is I'm going to select a base. And then when I do that this extrude option up here becomes illuminated. It wasn't illuminated before you can see if you click off of it, it's not eliminated, but if you select it, select that face rather, you can then select extrude.

Now it'll give you this little pop up saying extrude only works in the local coordinate system and you just click this close button and say Yes, I understand. And then you get these settings that you can play with right here. Now we know our box brush here is 200 by 200 by 200. So what I'm going to do is I am going to set my length here to be 200. And my segments here to be, let's say 10. And nothing has happened yet until I click Apply.

And what I'm saying here is I want 10 more segments to branch off in this direction that are each 200 unreal units across. Now watch what happens. Boom, just added a whole bunch more boxes out here. Now why would I ever want to do this? Well guess what you can do from here, you can modify this fine shape in whichever way you want. Maybe you want to grab this face, pull it out that way, maybe you want to grab this face, pull it up.

That way. You can see you can do all kinds of crazy things with just one simple shape. Let me go ahead and delete that guy out so I don't have too much of a monstrosity here. Gonna just jump back into place mode and place another geometric box brush again and then hop back into geometry Edit Mode once again. This time I am going to select a line and again, these can be tricky to select. And you can see that when I have selected a line, a button over in geometry edit mode has illuminated this one called split.

What this is going to do is it's going to take this line and split it perpendicularly. So clicking on that, I've now created a section over here and a section over here that I could move independently of one another like so. The other option that I would like to point out while we are here is if you select one vertice see, that is a corner piece, and you select a nother vertice see by holding down CTRL and left clicking not the line but rather the vertice. See, again, these can be a little tricky to select. They will turn orange that's how you will know that you have them selected. If I click this weld option, what will happen is you'll get rid of one of your vertices here.

And it will collapse it over here to your first selected vertices. Watch what happens. So now you've gotten rid of that vertices and these two are connected to this guy. So you can see how I can use that to create even more interesting shapes. as I did before. I'm going to go ahead and delete out one of these faces here to show you how you can get a polygon back in the event that you do delete a face.

So if I select this face right here, and tap my delete key, how do I get it back? Well, what you can do is you can select one vertices, then hold down Control, select another, and another and a fourth. And with all four of those now selected, I can release the control button and simply select this Create button over here to bring a polygon back. Okay, next I am going to jump out of our perspective view. Come up over here into our left orthographic view. Let's enlarge this because we're going to be doing some work in here.

And I'm going to delete out this box brush because I don't want that we're going to do something a little bit interesting next over in the geometry Edit Mode panel there is an option for pen go ahead and select this we are going to be doing is we are going to be creating our own brush shape. And to do so we need to tick this create brush shape box go ahead and click on that. And then let's actually set our snap settings here to be 50 instead of 10. And then let's hold down Ctrl and scroll wheel in to make things a little bit easier to work with a little bit bigger. Okay, I'm just going to click on my window here and you should see this square sort of cursor that is moving around with your your normal pointer cursor right here and I am I'm going to find an intersection point like so.

And I'm going to press the spacebar wherever I want an intersection point of sorts, or sorry, a main point to show up for my brush shape. So there is a corner point, I'll come under a little bit like that will go here, and here and here. And pressing space wherever I want one of those corners to appear. And then press spacebar one more time to create a simple sort of step shape like that. Now I'm going to jump up out of my orthographic left view and instead access my orthographic top view. And what you can see from a top view is we've just kind of created this sliver piece right here.

There's no depth to it whatsoever. That's what we're going to actually manage to do next, and I'm going to come a little bit underneath here, this wireframe is our floor. And right about here, I am going to hold down the Alt key, and then press the middle mouse button that is my scroll wheel to set a pivot point around which we are going to lay. So note that we got our brush that we created up here and a pivot point right here. With that done haven't pressed anything yet, I'm gonna come over to geometry edit and click this lathe option. And when I do, I'm gonna get some settings here, how many segments what I like and how many total segments are going to create the entire circle, a circular area that you're about to see.

So I'm going to say there's going to be 16 segments to a circle. And I would like Mike to get eight of those segments to essentially create a semi circle. Now watch what happens when I click this Apply button. I've essentially taken that stare, stitch stare shape that I created and learn That around this central pivot point right here. So now if I jump back into my perspective viewport you can see that I've created I don't know some stands or something like that be great for sporting stadium. Anyways, that is going to wrap up our discussion on geometry Edit Mode.

Hope you guys learned a lot and we will see you in the next one.