A Universe of Triangles - Computerphile

We see objects all the time and our brains decode the 3D shapes, but how do computers model these shapes and why break it all down to triangles?

Graphics series with John Chapman:

5/ Light and Shade in Computer Graphics: Coming Soon

This video was filmed and edited by Sean Riley.

[Torguish]

This dude would make a badass villain in some sort of Sherlock Holme-ish type movie/series. :D

[ashwith]

Kudos to whoever does the animations for Computerphile. They are always very helpful.

[phultroo]

I am very bad at maths, geometry and stuff but this dude's explanation is just crazy. I wish i had a teacher like him.

[Josematube]

One of the best explanations I ever see!
Thanks a lot.

[yrnteao]

It sounds like james bond is giving me a lesson on co-ordinates, it's awesome.

[jasonlaw]

I am at 00:34 nd have decided already this guy can be leader of my village.

[earloe.]

Can we have more of this dude in future?

[OwenPrescott]

As a designer I'm never going to be able to use a triangle without being accused of being Illuminati.

[arsenelupin]

1:48

Your coordinate system isn't right-handed. It's good usage to make it right-handed, usually.

[steppenhenge]

I wonder if they were sitting on a three legged stool when they figured to model with triangles... interesting that the same reasoning for why to use triangles is the same reason why 3 leg stools are better than 4 legged ones - no wobble.

[Validole]

This dude reminds me of the Tenth Doctor. Also, of caffeine.

[VGToolbox]

That's a lot of triangles for the side of a cylinder! I'm sure you could get away with 2 per side ;)

[squidcaps]

Have to once again thank you for these videos. it's just so easy to link a playlist instead of spending hours explaining it.

[cril]

I'm happy to see comments about the animations. They are a fantastic touch to these videos. Keep doing that :)

[veggiet]

While triangles are easiest for rendering, displaying a mesh. Quads are more convenient for modelling, creating a mesh

[swedenlifebyadnan]

This is the worlds best video on a particular topic where a topic is explained so clearly and easily that i am beyond impressed and writing the comment in the middle of watching the video

[papa]

Looking forward to the next video about moving them about in 3D space.

[tomhearn]

This man is the richard hammond of triangles

[Berserkism]

Love this series, I am actually getting a basic and more clear understanding than I ever had. Clear and concise explanation. Much appreciated.  

[unvergebeneid]

Quaternion tie-in with Numberphile. Do it! Do it! :)