Hi Ismail @shola_expert ,
If I understand it correctly, you are wondering how Paul was able to place a Sphere exactly on top of a Cube.
Well, he knows how big a (default) Cube is (2m) and how big a (default) UV Sphere (2m). Adding a Sphere in the same location as the Cube and then moving it straight up 2m (½*2m + ½*2m) will place the Sphere exactly on top of that Cube.
But maybe that's not what you are asking. Please add a timestamp, when asking a question about a Lesson and if possible (a) screenshot(s).
also... you can often place it using snap to surface, edge, or vertex, which also wouldn't require measuring.
I'm following the tutorial, and I noticed that when he places the sphere on top of the cube, the sphere’s location values still show X0, Y0, Z0. But when I add a sphere, it appears at the center of the world, and my cube is also at the center. So I have to move the sphere upward along the Y-axis, which changes its Y location from Y0.
Hi Ismail!
If the sphere's origin is at the world origin, then it will be 0,0,0. This you can achieve by for instance apply the sphere's location, or set its origin to that point.
Hope that made sense
He quickly says that he set the sphere's origin to the world origin. This can be done in 2 ways. First, move the sphere to above the cube and then press ctrl+a->Location. Second, is to tab into edit, press A to select all, and move the sphere above the cube. There is also a third way. Move the sphere above the cube and then press Ctrl+period, and move origin back to the world origin. Press ctrl+period to exit out of origin transform mode.
Al remember this is an introduction, Paul will talk about a lot of things and I mean a lot, it'll be too much to remember, Blender is a huge beast. So you don't have to know all the information by heart at this point, you can move on and in time, the more you see concepts over and over, your brain will start to get it and it'll be easier to understand.
@Dwayne Savage omg you save ''ctrl+a->Location'' this work for me thanks