/sci/ - Science & Math

3D graphics. part of comp-sci

>>4762768
>3d figures relate to their 2d representations

Just for your shitty euclidean geometry?
"Vector Calculus" should cover it.

http://en.wikipedia.org/wiki/Vector_calculus

From your post, it is probably way over your head.

You may wanna just try the "engineering" approach -> find someone who knows there shit, already calculated all that shit you want, and just copy there end results/end formulas.

>>4762787
Took calc 3 already. Not helpful at all, the professor couldn't even draw a good helix.

>>4762794
2nd post in thread has it.

>>4762794
"Vector calculus" is not really the same as that shit they taught you in "calculus classes".

Vector calculus is more general, it is usually taught as "vector calculus" , "applied analysis" or "vector analysis".

Shitty calculus classes are typically more "plug and chug" aimed at engineers (hence they are very very easy). They do touch on some very superfical theorems, but nothing too important or difficult.

Vector analysis classes are aimed at physicists and mathematicians. They are more rigrious, more proof based, and will provide a nice transitrion to some of the results of "real analysis".

http://en.wikipedia.org/wiki/Real_analysis

>>4762838
but it has fuck all to do with 3D graphics

most of the math is linear algebra and trig

http://en.wikipedia.org/wiki/3D_projection

>>4762768

I think the first step would be getting used to 3d equations (paraboloids, cylinders, hyperboloids, ellipsoids and so on)

>>4762842
>implying you can't derive all of 3D euclidean geometry from basic vector calculus

>implying you can't derive basic 2D projection form basic vector calculus

Are you fucking retarded?
Just because you aren't smart enough to do something pretty trivial, doesn't make it impossible to do, tt just makes you a fucking moron!

>>4762854
calm down

calculus is not necessary to do 3D projections. you getting mad won't change this.

>>4762842
All that shit is still derived from vector calculus.

Refer to >>4762787
"engineering" approach -> find someone who knows there shit, already calculated all that shit you want, and just copy there end results/end formulas.

That is what "http://en.wikipedia.org/wiki/3D_projection" is. It is the end results obtained by a mathematican/physicist using vector calculus.

>>4762859
>confuses calculus with vector calculus

>confirmed to have no idea what he is fucking talking about

Yes, vector calculus is used to obtain the "projections". Show me how to do it without vector calculus and you will be a fucking famous.

Basic E-Geometry and trig is a part of vector calculus DUMBFUCK!

>>4762861
>All that shit can still derived from vector calculus.

fixed

it would be a retarded long winded way to go about doing this. like telling some high schooler learning the volume formula for a sphere that they should do a multiple integral. i'm guessing you just did vector calc and have a hard on for it.

you should ask a comp graphics tard how it is actually taught.

That seems pretty easy to do, just think abit about it and caclulate. I find that way much funnier than learning from someone else who have already done it.

>>4762878
>like telling some high schooler learning the volume formula for a sphere that they should do a multiple integral

>Implying you shouldn't


You are all that is wrong with the world.

>>4762878
You are advocating not actually "understanding" how shit is working, in favor of just memorizing formulas?

Do you have no shame?

>>4762872
Comp Sci major here

Linear algebra (so vectors) and trig are the mainstay of 3D graphics. Vector calc comes very late in 3D graphics, if at all, and we call it differential geometry. There's not much need for all that stokes/green's/gauss' theorem that is the big part of standard vector calc course.

Look in a standard text book, and vector calculus won't be there.

>>4762891
yes, as that's how practical applications of math is often most efficiently learned.

it's the way the world works. we are not all math fags. deal with it.

>>4762878
>implying that is a long calculation

Shit is pretty trivial bro. If OP isn't smart enough to do basic math, he should off himself.

>>4762897

>>4762888
>teach every 16 yr old who will never need it calc I and II just so they can work out volume of a sphere.

you should run for school board

>>4762898
i'm guessing you are aspie as you haven't the ability to place yourself in another's circumstances, where there needs and abilities may be vastly different to yours

>>4762897
Your parents need to be executed for their crimes. What they did to you was inhumane!

>>4762894
This

>>hey kids, 3*2 is the same as 2*3
>>That's bullshit Mr.teacher, you didn't prove it was associative over the real number system

>>4762904
>reaction image quit

>>4762913
>change argument to "troll" quit

>>4762911
>implying that is not the world we all want to live in

>>4762907
I'm guessing you can tell a persons ethnicity from the taste of their cum?

>>4762897
Are you able to live on your own or do you need a caretaker?

>>4762768
OP. Ignoring all the trolling. The area of math you need is a big part of computer science. In particular games programming.

Don't let that put you off, the math is quite sophisticated. Google computer graphics math for some idea of what you need (protip: get a linear algebra book under your belt)

>>4762894
>mfw our games suck ass because the programmers don't know enough math

bump for interest

Hijacking this thread to ask a kwestchun:

Are there any fun games that deal with 4 dimensional objects?