Blender 2.8 Beginner Tutorial PART 14: Deleting and Merging Meshes

hello everybody and welcome to part 14 of the blender 2.80 absolute beginners course in this video we're gonna start with a sphere instead of cube and in the edit mode we will learn more about deleting stuff so as you have seen in the previous video I very briefly started deleting faces so let's maybe start with it when you press X in the edit mode you have multiple options to choose from so starting from the most probably commonly used ones are those three which means deleting vertices edges faces and a cool thing an interesting thing is no matter in which mode you are you can delete anything so let's say I have a face selected right now and I'm in the face mode but I can still delete the vertices and you can see we have a very big hole when we decide to delete this way and if we just delete the faces the hole is smaller the reason for that is pretty logical each face is billed off for corner or vertex points doesn't matter how you call it and if you decide to delete them if we delete the vertices we are also deleting a part of all those faces around our selection so that's why we are getting this huge opening and if we decide to delete the face only that means the vertices edges and everything building up this face will remain untouched so if we let's say decide to delete edges the situation is similar but the vertices are still in their positions so this is pretty interesting because depending on what you're wanting to what you want to achieve choosing a right option will be very essential so again if I delete this one vertex here I'm actually creating a hall of this size because this one point and if we go to the wireframe this is more visible you can see it kind of creates this gradient of color along the edges and that means this one point belongs to those four edges so when I deleted those four edges are gone as well if I have to I have two vertices selected we have again a gradient going here and here and a solid color here meaning we have a full edge selected so now when I go to the add mode you can see this will be highlighted and again if I delete just the edge itself we are just destroying those two faces because it's building it's creating them but we keep everything around I'm touched if I delete the vertices I'm deleting those corner points that build up all those faces around them and if I click delete face nothing happens because we have no face selected for now another interesting way of using the delete tool I guess we can call it a tool are using the only edges and faces and only faces options here so what it does let's say we select our number of faces like this if I press X and choose only faces you can actually see the grid or the mesh mesh of the mesh grid of the mesh is still here untouched so if I switch to the vertex mode you can see I'm still able to select what is left of our faces that were here so I can move it around another way if I choose only edges and faces you can see the vertex point here and here they are all still present within the mesh so yeah again this is pretty useful sometimes you might need to you might want to extract just the vertex points let's say from this kind of selection and to do that you need to choose an option that fits best for your needs so it's gonna be this one in in this situation you might see we still have some edges visible here but we can delete them by using this option and I think yeah our vertices will be just the only thing left within this area so I can see I can move them around and yeah that's another example how you can use the delete tool since we are talking about leaning stuff I want to show you one more thing so I've created this circle and when I enter the edit mode you might remember from one of the previous videos that I was playing with geometry like this just by extruding it within the z-axis and scaling in two different directions so let's say we will create stuff that looks like this and in the end we want to merge everything to a single point so we want to close those open holes within our object like that how we can do this let's see this bottom here for example so you could probably do what I'm thinking what what's a very intuitive solution and that's just scaling all the points into a one single point so when I press s and type 0 on my keyboard and press Enter you can see we now have a single point and by the way when i zoom in this is what's happening this is a clipping in the viewport this is the situation we're having an orthographic view which I mentioned before you can switch between them here it's pretty useful because it never eclipsed the view so we can zoom as close as we want which is not possible within the perspective view anyways you can see I've merged everything into a single point right now and you might think that's already case closed but not not really so you can see when I click within the corner of the object I have a strange situation I mentioned before if a vertex is a part of edge of an edge it then shines this color gradient along the edges it belongs to so this one edge here belongs to those sorry this one vertex here belongs to those two edges so if we select a point here it should illuminate all of the edges around but that's not actually happening it just shines light or shines this color gradient to one of the edges and why is that the reason is we scaled all the points into zero meaning all those vertices vertices we had they are still present here they only share the same location so if I click and grab you can see I'm able to still move those points around and this is a situation we really want to avoid because it causes a lot of bugs so how do we fix this there are two ways or maybe more but I know two of them the first one which is the fastest would be selecting all of the points here and now you can see we have this cool gradient of colors we select all of the points by using a box selection so again I will repeat it let's deselect everything go to wireframe mode and with the Select tool I do the box selection meaning I have everything within the box selected right now and we can go to the vertex and choose remove double vertices when I click it you can see a pop up here telling us how many vertices were removed meaning they they there they were merged into one point so now when I click it you can see just by the single click we have this one point selected and it moves everything together with it yeah so another way of doing that I will just undo my operation would be using a merge tool and the merge tool works us in similar way but gives us a bit more options so let's select everything as I did before I go to the vertex and we have merged vertices and when I click it you can see we have three options to choose from if I click Center we will have everything merged same way as with the remove doubles tool so a single point again and you could see we also have an option to merge at the cursor so let's say I move the 3d cursor here and when I press alt M which is a shortcut for this operation when I press alt M I can choose this option here so now the points are still merged into a single point but they are also moved to the location of the 3d cursor which is pretty handy later that's a very useful technique in my opinion this is a simple example how it can be utilized but later I am pretty sure we gonna use it more often a merge tool gives us a few more options to choose from but they were active so let's see let's say we're gonna do a point by point by point selection like this let's select a couple of points and press alt and hold em so now you can see we have additional things added list we have the first and last options here so the names are pretty self-explanatory when I choose first the whole merge operation will be the whole points will be merged to the first point I have selected when I choose last obviously this will be a last point so again this is pretty useful let's say we have a cube object and we want to merge everything to to this point here let's say we want to merge this face this top face to this point we could move a 3d cursor to this location and just choose the cursor option but instead of doing that we can simply create a selection and then let's say oh I forgot if it if that was the first point or or if it wasn't we can just holding a shift key deselected and selected again and then it's definitely the last point of this selection so that when I press all them and choose the last option you can see sorry you could see everything is now merged to this last point here so this is a pretty handy option especially when again we do 3d modeling and we want to create a shape rectangular shape for example this is a very handy way of doing it so I hope you enjoyed this video I learned a lot from it in the next part we will finally create our first 3d models first 3d scene created just from the scratch 3d modeling everything so I really hope you enjoyed that portion of information as always try practicing it a little bit yourself and see you in the next video which is going to be amazing bye bye

Channel: chocofur

Views: 84,316

Keywords: blender, blender 2.8, blender 2.80, blender tutorial, blender 2.8 tutorial, blender 2.80 tutorial, blender beginner tutorial, blender 2.8 beginner tutorial, blender 2.80 beginner tutorial, blender delete face, blender delete vertex, blender delete edge, blender remove doubles, blender merge, blender merge vertices

Id: MNTtaw_l0FQ

Length: 13min 5sec (785 seconds)

Published: Thu Jan 10 2019