Math for Game Devs [2022, part 3] • Matrix4x4 & Cross Product

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Published 2022-10-26

Primarily for my students at FutureGames - I will only read chat/superchats during breaks!

Assignments here!! ❱ acegikmo.notion.site/Lectures-Assignments-a4419295…

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All Comments (21)

@cosmicg_oth 8 months ago

5:21 Matrices 56:00 Matrix Inversion 59:10 Last Row of the Matrix4x4 1:03:10 Break/Questions 1:36:09 Shows off game/Use cases for Dot product & Matrix transformation 1:44:25 Coordinates 1:48:47 Cross product 2:02:20 Break 2:10:30 Cross product use case (Will add the rest when I finish the video)
@sparlott1347 1 year ago

Lecture starts here: 5:21
@soupmachine5831 1 year ago

Blessed be the queen of programing, my here shining light touch all our source codes.
@PaulKingIII 1 year ago

I fell asleep and I woke up and this was playing
@JulsGeekPI 1 year ago

Thanks for sharing this
@Ludrien 1 year ago

Really high quality content. Love your lectures!
@Horoprime 11 months ago

It's really hard to navigate without chapters/timecodes, could you please add them? Overall it's a great course, thank you very much!
@francoperez4593 4 months ago

49:00 1:26:30 1:40:50 1:44:50 1:53:30
@IrocZIV 1 year ago

Thanks
@nigeltan7766 1 year ago

do transformation matrices need to have orthogonal basis vectors? that is, do the basis vectors of local space have to be orthogonal for our local-to-world transformation?
@itsm0saan 1 year ago

Hey, I would like to say thank you^^
@juliopolo7216 5 months ago

That game looks similar to Data Wing. Love that one. Great video, I learnt a lot.
@SuthernHunter 1 year ago

Does anyone know where you can buy those 3D axis models she showed? Having a physical thing I can use as reference always helps and I can't draw 3D space to save my life.
@xhivo97 1 year ago

Love how unread engine is on its own on the coordinate system chart 😂 (to be fair it's the most intuitive for me too, since probably im guessing xy on 2d and xy on 3d games is the same)
@blackpanda1302 1 year ago

❤️❤️thx
@MertowVA 1 year ago

Even though I know my matrices it's nice to see the way you implement code. These are great!
@vima9046 1 year ago

At minute 52:12 the explanation is a little bit confusing because i think if we want to do what you are explaning (find a relative direction from us) we should use "InverseTransformDirection" instead and not TranformDirection. Using TransformDirection would be true only if the object that is calling TranformDirection is not rotated.
@jasonlaw4659 1 year ago

Another remarkable representation of life and the world we live in. The more knowledge we accumulate the greater our abilities become to go on and do great things.
@Oryxide 10 months ago

Do the contents of a rotation matrix change depending on if Y is up instead of Z?
@vima9046 1 year ago

Hello Freya! There is one thing that i don't understand. Maybe it's just because i don't have much experience with this stuff. My question is in the exemple as the minute 49:30 why should we calculate the offset in local space using the appropriate functions and than find the position in world space instead doing everything in global coordinates? (In short i don't undesrand if is necessary switching from local to global system). Thanks in advance!