In this lesson video, we are going to cover three things. First is how to subdivide a mesh. Second is a tip on how to transfer selection between selection modes. And lastly, about duplicating mesh elements. I know it seems that these three topics do not relate to each other, but we need to cover this first so we have the required foundation for further lessons. Let's bring this cube up a bit.

Then go to the edit mode. If you want to add more faces based on a chord grid to an object or to mesh elements we can use the subdivide command. For example, if we select this single face, right click and then choose subdivide here, the previous face now becomes four faces. If we right click and then subdivide again. Now we have 16 faces. Essentially, the subdivide command will ask More faces by dividing each of the selected faces into four faces.

You can also perform sub divide on ages. For example, if I select this age, then right click and then sub divide, we can change the number of cuts here to three for example, now if we go to the vertex mode, we can see we have three new vertices here. Let me undo this several times. If you want to subdivide the whole object, then you need to select all of the faces, right click and then subdivide. You can change the number of cuts here to any number you like. You can swipe to get higher value quickly, but the maximum number for a single sub divide operation is 10.

If you need more, you can do multiple simplified operations. Now let's discuss about transferring selection in render. If you have two vertices selected like this, then press two To go to the H mode, or by clicking on the H icon up here, we can see the vendor converts the vertex selection automatically to a selection. But if we press three or go to the face selection mode using this button, you can see the selection is gone. This is because two vertices or an age selection cannot represent a face. If we go back to Vertex mode, and then select four vertices like this instead, if we go to the H mode, we have four ages selected.

And if we go to the face mode, we have one face selected. Now here is a question. What if we want to select these four faces by only selecting this single vertex in the center? Can we do that? Yes, we can. Through that we use the ctrl modifier key when switching between selection mode, select this vertex and then hold CTRL and then click on the face button up here.

You can see these four faces are now selected. Now the cool thing about this selection technique is that it is reversible. So if you hold CTRL and click the vertex button again, we have our single vertex selection back. Another way to do this is by holding the control key, and then press number one, two, and three. Control two is for each selection. Control three is for phase selection.

In blender, you can duplicate objects using several methods, but the most basic way to duplicate objects is by using shift the shortcut. Currently, I am in the object mode. If you select an object, and then press Shift D, the object will get duplicated, and you automatically integrate or the move mode. In this condition, you can move the object to any location you want, and then left click to confirm the new location. Or you can right click if you want to cancel the movement. Now if you right click you are only canceling If not the duplication process.

So currently, the cube object is already duplicated, and it is now located at the same exact location with the original object. We can see if we press G and move it like this. We actually have two cubes here. Let's delete this one. And let's select this one and do another object duplication, press Shift D. Now because we are in the move mode, we can use all of the move mode features such as pressing X, for example, to constrain the movement to the x axis, you can type in the value of how far it will move away. For example, type three, then left click or enter or spacebar to confirm.

If we are in the edit mode, we can also perform duplication on mesh elements. We can duplicate vertices, edges or faces. Let's see this interface mode first. If we select a face and then shift it And then move like this, we have this new face floating in here. Now, if we are in H mode, selecting a single age, and then shift D, we get an age floating like this. But if it's like ages that form a face, for example, this for ages here, when we duplicate them, it will also duplicate the face.

In a vertex mode, the same principle applies. If we select a single vertex and then duplicate, we get a vertex floating like this. But if it's like two adjacent vertices that form an age and n duplicate, we have the two vertices and the H that connects them. If we select four vertices that from a face, when we duplicate, we get a face also. Finally, we can also constrain the movement after the duplication process just like how we duplicate objects in the object mode. For example, I want to copy this face and move it to the leaders that way along the negative y axis.

So select the phase shift D. Then to constrain to the y axis, we can press Y, then press minus type two and then enter.