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Newcomers DBPro Corner / Vectors?

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Vandetta
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Posted: 10th May 2003 05:20
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Im trying to do this tutorial: http://gamedevnetwork.com/article.php?aid=8 but at one point it tells me not to continue if I dont know what vectors are. What are they and how do I use them?
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Oryaaaaa
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Posted: 10th May 2003 08:09
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Make Vector3(1) = DIM X(1),Y(1),Z(1)

Make Vector3(1)
set vector3 1,1,2,3 = X(1)=1,Y(1)=2,Z(1)=3
point camera x vector3(1), y vector3(1), z vector3(1)

It is such a meaning.
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Vandetta
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Posted: 10th May 2003 11:07
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ummm....so what are vectors?

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matt rochon
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Posted: 10th May 2003 16:20
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sets of 3 numbers
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IanM
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Posted: 10th May 2003 22:24
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That's right. Vectors are a convenient way of grouping 3 numbers together into one entity.

They are used throughout the 3D engine, from vertice positions within objects, normals (for light reflection), positions and rotations of objects, lights and cameras.

DBPro has a set of vector commands built in, but you don't have to use them to get the same results.

You will need to know matrix maths to fully understand them, but you can probably get by in the short term by just using what you see.
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Vandetta
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Posted: 11th May 2003 01:06
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Is there anything I can look at that goes more in depth on them and their different applications?

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Flashing Blade
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Posted: 11th May 2003 12:20
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this seems a good tutorial

http://chortle.ccsu.edu/VectorLessons/vectorIndex.html

It will make your brain itch though
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Vandetta
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Posted: 12th May 2003 12:09 Edited at: 12th May 2003 12:20
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Thanks...but I was looking at the site you gave me and it said points were used for vertice locations and vectors were used for encoding directions between points. They hold distance and direction. But above someone said that they were used to hold vertice information. Can anyone clarify Thanks.

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