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Originally posted by ThirddaySaved:
Ya... I am a Christian and just get really worried when I think I might be cheating or plagerising... I use a lot of forums, and websites to figure stuff out, but I try to completly understand the code I find before I use it. If I dont, it get's me really annoyed...

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The web can be a wonderful tool.

Anyways, really glad that you're here! Feel free to tell us about yourself -- how long you've been programming, what kinds of games you like, your testimony, or links to some other projects you've worked on.

Cheers!

In Christ,
clint

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~~ Peace, John 3.16 ~~

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~~ Peace, John 3.16 ~~

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Originally posted by Thirddaysaved:
Hey Mack, your games look fantastic... I was just looking at Eternal War, and the graphics are awsome... if you don't mind me asking, what language did you do that in? I've been wondering what would be te best one, but also professional...

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Thanks. For Eternal War: Shadows of Light we used C (I think) and QuakeC. For Eternal War: Nightmares we're using C# and C++ mainly.

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~~ Peace, John 3.16 ~~

http://www.gpwiki.org/index.php/3D:Matrix_Math#Transformations

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a translation matrix contains the X, Y and Z distances in the first 3 elements of the bottom row

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The position in the matrix isn't affected by the rotation/scaling... though a good practice is to generate your matrix on the update, having your position/rotation/scale stored somewhere on the class/structure of the object.

Such that:

- create position matrix - using your stored position (vector) (using D3DXMatrixTranslation(&matTrans, pos.x, pos.y, pos.z) if I recall correctly, Matrix.Translation() for VB (never used DirectX in VB, but seems to be what your doing))
- create rotation matrix - using whatever rotation you want (I typically use a vector to define the axis, or just 3 floats (yaw, roll, pitch)
- create scale matrix - using your stored scale (vector)
(Note: any of those can be left out if your not going to use them (commonly scale))

- multiply them to form your main matrix
- apply the matrix to the object

So you'll always have a vector with your current position which will be what the matrix is position comes from.

Hope that helped...

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jonwarner.net

[This message has been edited by dartsman (edited July 27, 2007).]

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~~ Peace, John 3.16 ~~

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Matthew Langley
Lead Documentation Engineer
GarageGames

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Sam Washburn

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o, and just tell me if you want me to move this to the Gaming section... I don't want to now, because many forums don't like double posts...

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We're really lenient in ways of rules and stuff. A little briefer on the untold, but known guidelines. Mods, correct me if I got something wrong:
Double posting:
When someone presses the submit reply button twice in a row because they get tired of waiting, (happened to most everybody once) Another form of double posting is to reply to your own post, that isn't a big evil, but its not really prefered, when you can, use the edit button.

Resurrecting/(known in some forums as necroing):
When someone posts to a thread that hasn't been locked, but is 6 months old, or older. Also something pretty much everybody has done. I did it once or twice, and I'm still here, so they're pretty lenient.

Curse words:
I don't know much about restrictions, but just don't use them.

Flames:
Don't do it, our only case of banning that I know was through constant flaming. (personal insults)

Trolling:
Rarely seen around here, from what I know of it, its provoking another to start a flame war.

Anyway, that's what I can remember of the Don'ts. Its really not that hard if you're not really a flamatory person, and they're pretty lenient, I'm by far not the oldest here, (in terms of length on CCN) but I am one of the activer posters, and I remember being surprised how quickly these guys responded as well.

Finally,
Welcome to CCN!

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MM out-
Thought travels much faster than sound, it is better to think something twice, and say it once, than to think something once, and have to say it twice.
"Frogs and Fauns! The tournament!" - Professor Winneynoodle/HanClinto

I reserve the full right to change my views/theories at any time.

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Double posting

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Resurrecting threads

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Curse words

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Flames/Trolling

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Sometimes we mods need assistance from the community on these issues. If you see something then either email or PM us and we'll check it out. We have day jobs and families too so sometimes we may not see everything all the time.

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(You guys respond really fast... actually kind of amazing)

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Man, you guys are night owl's Except darts of course! Anyways. Welcome to CCN 3rd!

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heh... I was bored at work (even though it's like crunch time :S) so was checking the forums every 10 to 30 mins :P hehe

Hmmm... ok... I've actually got the solution I think you want... In my simple 3d engine in C++ and DirectX 9.0c I used a function called 'D3DXComputeBoundingBox()' (most likely just 'ComputeBoundingBox' in VB), which you pass in the vertices of your object (if it's a mesh it's easy as (lock the vertex buffer of the mesh and pass in the vertices) or even easier if it's just using vertex buffer then just pass that in) and you get a Vec3 of the min/max bounds of the object (axis-aligned).

Although, it'll be axis-aligned so you'll need to rotate it (there are numerous solutions in doing so, the only one I can think of is using 'D3DXVec3TransformCoords()' (guessing Vector3.TransformCoords() for VB) and doing that to the min/max bounds).

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jonwarner.net

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~~ Peace, John 3.16 ~~

so check out:
http://www.gamedev.net/community/forums/topic.asp?topic_id=330896

Or even better:
http://msdn2.microsoft.com/en-us/library/ms229645.aspx

basically the main point is:

Dim vertexData As GraphicsStream '... ' Compute the bounding box for a mesh. Dim description As VertexBufferDescription = meshes(i).VertexBuffer.Description vertexData = meshes(i).VertexBuffer.Lock(0, 0, LockFlags.ReadOnly) Geometry.ComputeBoundingBox(vertexData, meshes(i).NumberVertices, description.VertexFormat, meshBoundingBoxMinValues(i), meshBoundingBoxMaxValues(i)) meshes(i).VertexBuffer.Unlock()

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jonwarner.net

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~~ Peace, John 3.16 ~~

[This message has been edited by ThirddaySaved (edited July 27, 2007).]

[This message has been edited by ThirddaySaved (edited July 27, 2007).]

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MM out-
Thought travels much faster than sound, it is better to think something twice, and say it once, than to think something once, and have to say it twice.
"Frogs and Fauns! The tournament!" - Professor Winneynoodle/HanClinto

I reserve the full right to change my views/theories at any time.

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~~ Peace, John 3.16 ~~

[This message has been edited by ThirddaySaved (edited July 27, 2007).]

[This message has been edited by ThirddaySaved (edited July 27, 2007).]

It's just one of the (several) little quirks we've learned to live with on these forums.

--clint

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~~ Peace, John 3.16 ~~

I'm honestly not sure where the CCN servers are hosted, but the community is certainly wide and varied. We have people here from a good number of denominations/religions: protestants of all flavors, catholics, non-denominationals, I think we've had at least one or two Mormons that I can remember, agnostics, atheists, "new age" eastern religions, etc. But for the most part, it centers around fairly main-line Christian.

I really like the community here, and while it has its ups and downs, I for one am overall blessed by it, and hope it's a blessing to others as well.

Cheers!

--clint

[This message has been edited by HanClinto (edited July 27, 2007).]

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~~ Peace, John 3.16 ~~