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AppGameKit Classic Chat / 2d to 3d

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shadey
14
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Joined: 25th Jan 2010
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Posted: 16th Nov 2014 02:58
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I am trying to create a 3d level using cubes from saved 2d data, i thought i could simply use the y-coords in 2d as the z-coords in 3d, the x as x and the y as height, just 0 for testing.. but it seems this aint good enough, does anybody know the formula?

Hail to the king, baby!
http://davidjohnwheeler.blogspot.co.uk
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Lucas Tiridath
AGK Developer
16
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Joined: 28th Sep 2008
Location: Kings Langley, UK
Posted: 16th Nov 2014 08:55
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So what actually happens? Can you show us any code? What format is this 2d data in?

Quote: "just 0 for testing"

You mean the width and height are 0? If so, then yes, nothing will display, because the 3d cubes will have no volume.

Quote: "simply use the y-coords in 2d as the z-coords in 3d"

Is there any particular reason that you are translating the y coords to z coords? The z axis is the one that goes into the screen.

Where is your camera positioned? Is it definitely facing in the right direction to see the objects?

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shadey
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Posted: 16th Nov 2014 11:22 Edited at: 16th Nov 2014 11:30
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i see the cubes, they go in a straight line, i have a moveable camera, yeh of course they need volume..lol, i meant how high they are placed!
and yes i mean y for z, imagine reading a newspaper right? held upwards you read from left to right (x) and up/down(y), if you lay that paper down flat and give the lettering height (volume) then this is what I am after, yeh i know it aint possible with a paper! but it sure is with a computer

Hail to the king, baby!
http://davidjohnwheeler.blogspot.co.uk
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shadey
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Posted: 16th Nov 2014 12:54 Edited at: 16th Nov 2014 14:13
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ah nm, sorted it, I did exactly what I thought should happen and now it places 3d objects in the places the 2d were! what threw me off was missing a parameter in the createobjectbox() command, think I was tired at the time .. amazingly though AppGameKit never reported the human error and compiled/ran regardless! lol

**edit**
here's some pics of final results.. will make 3d app making alot easier for me

http://tinypic.com/view.php?pic=2l9tj7l&s=8#.VGiioPmsWcc

http://tinypic.com/view.php?pic=2ufqb0m&s=8#.VGii0vmsWcc

Hail to the king, baby!
http://davidjohnwheeler.blogspot.co.uk
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SoftMotion3D
AGK Developer
19
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Joined: 24th Aug 2005
Location: Calgary,Alberta
Posted: 16th Nov 2014 16:51 Edited at: 16th Nov 2014 16:56
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id use x,y in the 3d draw space just the same as you would with 2d

use z for depth if you want to throw layers in it.

if you need an example 3d tile engine let me know and i will post one for you to look at and use if ya wish

this example project of mine uses 1 layer pulled from a single 2d map....but uses 3d tiles to draw it.
http://forum.thegamecreators.com/?m=forum_view&t=209371&b=48

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shadey
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Posted: 16th Nov 2014 17:03 Edited at: 16th Nov 2014 17:11
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i am doing this way to keep it visually simple, i am going to code into the 2d editor a way in that if you switch layers, then a ghost copy of all the previous layers sprites are copied onto the 'current' layer, then you have a reference to what the level looks like underneath a floor lets say,when you think 3d! So I can imagine editing in pure topology,of course you could only work from the ground up, like real building i guess?! the height of the 3d object is simply layernumber*3d object depth-size.all the info is saved into one file from a type with several fields in the editor the file is then copied/read back into the 3d engine test, allowing me to do anything really based and what field has what value

Hail to the king, baby!
http://davidjohnwheeler.blogspot.co.uk
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