Original subtitles

This is how you make a pill-shaped hole

in a curved surface in Blender. To start

off, we have this curved surface. Then

I'll select this edge, hold control, and

select this edge to select the shortest

path. Then I'll press shift D to

duplicate it and right-click to cancel

any transformation, and press P to

separate by selection. In object mode, I

can select the new curve and

right-click, convert to curve. Now that

it's a curve, we can add a curve to tube

modifier, and we can increase the

thickness. We don't want to have flat

caps, so make sure you set it to round

instead. So now we have this pill-shaped

curve which follows the surface. So we

can right-click and convert to mesh. Now

select the mesh and then hold shift and

select surface and press control and

minus, assuming of course that you have

the bull tool add-on enabled. Now in

case you just get a hole like this, set

it to exact instead. And then apply the

boolean modifier. Now we can delete this

cutter object. Now obviously we need to

do a little bit of boolean clean up. So

add a weld modifier and set it to on

cage, and then just increase the amount

until it looks better. So this is

already an improvement. I'll apply that

in object mode. To solve these

triangles, we can just select these

edges and control X and dissolve them.

Then with this kind of area, if you're

not sure how to solve it, what you can

do is just take these faces and press F

to turn it into one big face. Then there

are no distracting edges and you can

just start to connect things that look

like it would be logical to connect. So

I'm just selecting vertices and pressing

J. Let me show you one more time. So

press three for face select, select

these, press F to fill, one for vertex

select, and then select these and press

J to join them. Next, go to face

selection mode, press C for circle

select, and then select all the faces on

the inside. Then press I for inset and

switch to outside by pressing O. That

way you can create a nice loop around

the hole. And then press I for inset and

O for outside again to make another loop

on the inside. Now let me subdivide it

and shade that smooth. And that's how we

solve this capsule-shaped hole to quads

topology.