Good Shading With Bad Topology _ Blender Topology Tutorial 

This is waaaaaaay too fast to follow. Also you don't explain or clarify what you're talking about. Why is it bad topology? Why are you modelling in a certain way? This would be a lot more helpful if you slowed down and took the time to explain what you're doing.

If you are deep enough into blender to work like him, you can resolve merging issues like that, but a beginner could end up taking a lot of time and effort in adjusting vertices manually. The approach I like the most is to use the shrinkwrap modifier on both objects, with a vertex group on the connection point on each object. It sounds more complicated than it is, tutorials about the modifier on YT are far easier to understand. It allows you to work on any surface you want to cut/merge into and you can check the result before applying anything. And use "loop tools" -> for example "circle" to prepare the shape of your mesh connection.

Although it's probably not a huge issue with a spherical object, the issue here is that the one with the correct topology also suffers from 5 spoke poles, where as the one producing the n-gon does now. 5 spoke poles can sometimes cause unwanted effects in tight places on your mesh (of the angles are very narrow).

If shading good, topology good

I clicked to see why topology is so important ? Well nice video

This is really interesting! though understanding topology way more than good or "ngon" = bad. Its not totally bad advice, and sure if you were to just avoid ngons altogether it may help simplify things but it is really more complex and by trying to dumb it down so simply is only hurting your learning experience. For starters, you should be showing how you can disable "optimal display" on the subd, and enable wireframe overlay to show topology after modifers and you will see with just 1 level of subd both good and bad versions have almost identical topology. You literally, manually created what a subdivided 5 point ngon is after a level of subdivision..... In some cases the "bad* version is actually better, after 1 level of subd they both have a 5 point pole, and arguably, a perfectly smoothed(with subd) 5 point pole will have better shading than a manually placed one. In fact in a lot of cases ngons and or tris can be the better option because they are more simple, and in right use cases have exactly the same shading so more optimised, like if the surface is a flat section throw whatever nasty as hell geo ther eyou like, add a bevel with hardened normals and you have a ton less poly with literally exact same shading.... or if you are creating a really low poly version with subdivision, where the first level of subd is the actual model then levels above it are just for bake details or even use it for your LODs, you could use tris and ngons to create those same 5 point poles and have a simpler base mesh with subd and shrink or other mods or sculpt with multiresolution. Whats actually important is to learn is the pros and cons of each, learn when and where is best to use each, when and why they are bad, why sometimes they are good and use them accordingly.

I can’t help but feel like you repeated the same few sentences many times but never really - explained - much And you’re elaboration on vertex count and the stage at which a model can exist was more confusing than clarifying Cool video, nice work

useful information, thank you. Just clarify, how did you know that for the correct topology in a cylinder you need exactly 16 vertices?where does this calculation come from?

that ngon can be connected to that cylindrical shape but for that you need to have two supportive edges (as you did in 2nd model)!

Good jobe... one more thing .waiting bro.❤️👍

Are the vertex count of the cylinder that make the difference? If so, how do you decide what is the right number for a specific case?

nice

👍

Bro you peak so fast sometimes it's difficult to follow you.

if i click Shift A it doesn't show a rounded cube in the menu. how to add this in menu of Shift A

Dude what are you talking about? Pentagon in this place is better than quad. Because pentagons better hold curved shapes by their nature. Example on the left that's worse topology because distance between loops starts to decrease which actually produce pinching. So you literaly teaching people the opposite of what they should do in this situation. Not everything should be constructed with quads. Well unless you trying to get a steam achievement.

toppo logy