CAMERAS and How They Work | Game Engine series

[@davencharity]

Hey Yan, that duck on your shirt makes me think of something. Did you remember to take the turkey out of the oven? ;)

[@n_x1891]

Than you so much for your tutorials Yan. This is super fun! I'm building an Oldschool Runscape Clone from what I'm learning!

[@bartoss92]

7:05 Confirmed, mathematicians are not humans :D

[@voxelrifts]

Mathematicians don't always use Radians.

[@laurensscheldeman4121]

Replacement for the dead cactus! Nice sunny flower!

[@Oingoboingo710]

This is so underrated thank you so much

[@s1nister688]

Excited for 3D as well ;)

[@CeilingPanda]

Something fun to mention when it comes to FOV is that when you implement a camera, if you use a far plane and turn, objects might "go away" when you turn TOWARDS them, due to how squares and distances work. Depending on implementation of course.

[@techgo4431]

0scar1994 which is why in any 3D program the far plane is generally customizable.

[@agfd5659]

When you imagine how the frustum rotates when you rotate the camera, it makes sense

[@CeilingPanda]

@@agfd5659 It sure does, but in my experience when people don't have an habit of drawing things up to visualize it and mostly look at numbers first, and just try to conclude if it's correct or not by looking at the camera when completed it might throw them off guard, it did for several people at our school when doing a camera :)

[@icaroamorim3123]

Maybe you should do another playlist with all the planing videos. They are nice as "single videos" classes.

[@AnilKumar-bh4vt]

Don't quit..... Keep going

[@Puddlestomps]

Very interesting discussion! I am just wondering where depth sorting happens if you batch objects by shader/material. Unless OpenGL does it automagically? Surely somewhere you have to decide on a specific order that you render objects in. Oh, and I would love for the series to get to 3D ASAP! It seems much more interesting than 2D.

[@jannis8218]

The order doesn't matter, OpenGL uses a Z-buffer for depth testing, you can look that up on Google

[@agfd5659]

@@jannis8218 but you have to tell OpenGL to use the depth buffer

[@ghosthitthose8681]

@@jannis8218 is it better to just use opengl's implementation of depth testing for more official games or would your own system be a better alternative

[@Aziqfajar]

So, does that mean that the camera doesn't exist, but the camera actually transform all the environment?

[@zeuglcockatrice4633]

it means that when you move your mouse in a game you actually rotate the entire game world in the opposite direction

[@kutanarcanakgul5533]

Hey man. I started watching you like 2 days now and i watched 20 videos of your. You have a great content. I haven't see a video about Design Patterns. Can you Series about that?

[@sam_is_people1170]

thanks!!!

[@stargazerch.3605]

Is the Clipping Matrix the same as the Projection Matrix?

[@stormsoendergaard3023]

7:05... well... dang... guess I'm not human then

[@JohnHiz]

It's too late I guess but what app do you use for drawing?

[@richardlighthouse5328]

When will we load custom models into our engine?

[@fanisdeli]

to load custom models, we will need a lot of stuff we currently don't have. For once, a camera. Then, a 3D renderer, a 3D camera, textures, models, and other stuff I can't think of right now.. also, some other important stuff comes before loading custom models. I don't know when that'll happen, but probably it'll be at least a month. Hazel Development branch already has custom models and all that, you can support him on patreon to get access to that

[@richardlighthouse5328]

@@fanisdeli I have implemented all of these you listed to load custom models. My problem is that the model just doesn't show. and no errors on debug output.

[@ronnieoogies2114]

or "Data American is on Point😂🤣"

[@Jkauppa]

world simplest (or among them) is ray casted cameras

[@Jkauppa]

not regarding 2d sprites always same view, do your own version of virtua cop

[@Jkauppa]

camera is a origin point, a direction (point + vector), with a desired surface centered (field of view, angle) on the direction viewing direction, it could be a rectangle or a partial/full sphere, anything, then you map the view to the view port, screen, what might be anything, even a vr sphere, in head mounted goggles

[@SarrabiscosPT]

What if you are trying to do a game like portal, in which there are multiple cameras at once? Doesn't tying the camera to the scene limit the number at cameras being rendered at once to one?

[@techgo4431]

Sarrabiscos then you just have to give the user the option to create and customize their own cameras which is something all game engine does, the camera that is tied to the scene is just the game engine camera it's what enables people to move around in the game engine.

[@MrPool412]

Best video ever

[@eric-jt4ij]

U r The 1

[@jaoschmidt3786]

90º is insane? I always play with 120º to 100º lol. I think 100º is the sweet spot

[@Jim-sf9qh]

It think it would be interesting to see you make a simple 2d game before you go onto 3d stuff.

[@industrialdonut7681]

How did you learn all this stuff that you know lol?

[@Destroyer19941995]

He worked at EA for years as game engine developer

[@SoundsOfTheWildYT]

Idk this doesn't seem like much of an intuitive explanation of how world space - local (Camera) space - screen space transformations work. Like the individual cases of what happens to the cube when the camera moves are pretty simple, but saying it inverts it to "the cube (and whole scene) gets further away" seems to overcomplicate it, but it might be that I have more experience with Linear Algebra and Affine Geometry having experienced those in my degree before moving over to attempt to understand computer graphics. Interesting discussion though, and great video as always!

[@Matt23488]

I would cast a vote for 2D stuff first.

[@seditt5146]

Dude... It is definitely pronounced Data not Data, idk why you said Data but everyone around here says Data instead.

[@0101-f1j]

what

[@seditt5146]

@@0101-f1j 9:00

[@samuelrasquinha6712]

@@0101-f1j Hey Peter

[@JustARegularPlayer]

I surely think it's pronounced "Data"

[@clodgozon3968]

Hello bois

[@retroryuu7254]

Duck

[@Ageof3D]

Good video, right?

[@quanghong3922]

Hello

[@Aldrin.Antony]

First

[@TanjoGalbi]

You over complicated the camera rotation explanation. The cube and all the other objects in the world rotate around the origin of the camera, that simple. The maths are not that simple but the quick explanation that you could have used is 🙂

[@sevenbit]

this video lacks a 'right' counter :) right?

[@quanghong3922]

I am the first person

[@garrethutchington1663]

Adam, is that you?

[@0101-f1j]

@@garrethutchington1663 lmao