Green is NOT my favorite color today

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SoulMan

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Posted: 22nd Mar 2003 02:23

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Hey everyone,
I am working on a program that is giving me fits.
This is really the first time I have started doing this but hey, I need to start somewhere.

Here is the code

+ Code Snippet



mWidth as integer
mHeight as integer
mXSegments as integer
mZSegments as integer
input "Enter the Width of the Matrix", mWidth
input "Enter the Height of the Matrix",mHeight
input "Enter the X Segments",mXSegments
input "Enter the Z Segments",mZSegments
cls

make matrix 1,mWidth,mHeight,mXSegments,mZSegments
position matrix 1,100,100,100
make camera 1

set point light 0,0,100,50
color light 0,1000,1000,200
set matrix wireframe on 1
do
position camera 0,0,100
loop

Everytime I run this, after I enter text in, I get a green screen.
What I want it to do is to display the wireframe of the matrix that you enter in.
What is up with the green screen?
Thanks.
SoulMan

I am my own and own my am I

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MrTAToad

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Joined: 26th Aug 2002

Location: United Kingdom

Posted: 22nd Mar 2003 02:34

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Its because of the MAKE CAMERA command, although even removing that (and getting a blue screen), I cant see the matrix.

Good news everyone! I really am THAT good...
http://www.nickk.nildram.co.uk/ for great plug-ins - oh my, yes!

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SoulMan

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Joined: 22nd Nov 2002

Location: In a house somewhere on the planet earth

Posted: 22nd Mar 2003 05:29

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Ok
I managed to get it to work by working a bit with the numbers and taking out the Make Camera.
Now I have a couple more questions.

1. Why does the screen turn green when I use make camera.

2. How do coordnates work in Dark Basic Pro. I seem to be confused when it comes to working with the Matrix commands. If I postition a Matrix at 0,0,0 how do I position the camera to look straight down at it?
Thanks.
SoulMan

I am my own and own my am I

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Richard Davey

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Location: On the Jupiter Probe

Posted: 22nd Mar 2003 05:37

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1) Because by default cameras (other than 0) have no background. The green is to let you know this (i.e. give it a background!)

2) If your matrix is at 0,0,0 and you want the camera facing down on it - you need to position the camera to say 0,10,0 (depending on how large your matrix is the Y value might need to be higher) and then POINT the camera at 0,0,0 (or maybe even 0,0,5 for a "slanted" effect).

Cheers,

Rich

"Gentlemen, we are about to short-circuit the Universe!"
DB Team / Atari ST / DarkForge / Retro Gaming

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SoulMan

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Posted: 22nd Mar 2003 06:27

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Wait a sec.
When you create a matrix and place it at (0,0,0) does that mean the lower left point is placed right at 0,0,0?
Otherwise, this code works.

+ Code Snippet

mWidth as integer
mHeight as integer
mXSegments as integer
mZSegments as integer
input "Enter the Width of the Matrix", mWidth
input "Enter the Height of the Matrix",mHeight
input "Enter the X Segments",mXSegments
input "Enter the Z Segments",mZSegments
cls

make matrix 1,mWidth,mHeight,mXSegments,mZSegments
position matrix 1,-50,0,-50

position camera 0,0,100,0
point camera 0,0,0
set point light 0,0,30,0
color light 0,1000,1000,200
set matrix wireframe on 1
do


loop

I have been trying to determine how to get it on the center and I think I am close. What do you think?
Thanks Rich for the help.
SoulMan

I am my own and own my am I

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SoulMan

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Posted: 22nd Mar 2003 06:46

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Oh, by the way, I want to program it to find the center and not just position the matrix at -50,0,-50 just to get the center.
How do I position the camera over the matrix without postitioning the matrix. I want the camera to find the center and display it looking down at the matrix.
Thanks.
SoulMan

I am my own and own my am I

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Attreid

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Posted: 22nd Mar 2003 14:15

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+ Code Snippet

mWidth as integer
mHeight as integer
mXSegments as integer
mZSegments as integer
input "Enter the Width of the Matrix", mWidth
input "Enter the Height of the Matrix",mHeight
input "Enter the X Segments",mXSegments
input "Enter the Z Segments",mZSegments
cls

make matrix 1,mWidth,mHeight,mXSegments,mZSegments
rem position matrix 1,-50,0,-50

position camera 0,mWidth/2,100,mHeight/2
point camera mWidth/2,0,mHeight/2
set point light 0,0,30,0
color light 0,1000,1000,200
set matrix wireframe on 1
do
loop

is it what you want ?

Bu$herie
How many civilians is he going to kill ? I know that Bush will sit at God's left, next to Saddam.

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SoulMan

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Joined: 22nd Nov 2002

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Posted: 22nd Mar 2003 22:02

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BINGO!!!!
Thanks for the help. I was going along similar lines, just couldn't figure out where I needed to stick the mWidth/2 and the mHeight/2 in.
Plus, I have determined how to display the entire matrix on the screen so it can adjust for different size matrixs.

+ Code Snippet

mWidth as integer
mHeight as integer
mXSegments as integer
mZSegments as integer
mCameraHeight as integer
input "Enter the Width of the Matrix", mWidth
input "Enter the Height of the Matrix",mHeight
input "Enter the X Segments",mXSegments
input "Enter the Z Segments",mZSegments
mCameraHeight = (mWidth + mHeight)/2
cls

make matrix 1,mWidth,mHeight,mXSegments,mZSegments
rem position matrix 1,-50,0,-50

position camera 0,mWidth/2,mCameraHeight,mHeight/2
point camera mWidth/2,0,mHeight/2
set point light 0,0,30,0
color light 0,1000,1000,200
set matrix wireframe on 1
do
loop

One other question. Do we have a size limit of the matrix along a segment limit of a matrix?
I noticed if I go a certain size it doesn't display. I am curious about that.
Thanks.
SoulMan

I am my own and own my am I

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DarkBASIC Professional Discussion / Green is NOT my favorite color today