 Show Posts
|
|
Pages: [1]
|
|
1
|
Java Game APIs & Engines / JOGL Development / Loading Normals from obj file
|
on: 2011-11-18 14:04:08
|
Hi, I'm having a few issues loading th normals into jogl okay I' ve wrote my model loader and have iterated over the vertices which are loading in just fine and resembling a Cube, now I'm trying to load the normals Ive iterating over the information and have tried to load them I do get some visual faces but in a bit of a mess rather than the shape of a cube any help would be most appreciated. 1
2
3
4
5
6
7
8
9
10
11
12
13
| gl.glVertexPointer( 3, GL2.GL_FLOAT, 0, fBuffer );
gl.glNormalPointer( GL2.GL_FLOAT, 0, nBuffer );
gl.glEnableClientState( GL2.GL_VERTEX_ARRAY );
gl.glEnableClientState( GL2.GL_NORMAL_ARRAY );
gl.glDrawArrays( GL2.GL_POINTS, 0, fVertex.length / 3 );
gl.glDrawArrays( GL2.GL_POLYGON, 0, nNormals.length / 3 );
gl.glDisableClientState( GL2.GL_VERTEX_ARRAY );
gl.glDisableClientState( GL2.GL_NORMAL_ARRAY ); |
These are the the normal which I think are vn in the obj file ? Normal Iterate Array: 0.000000 Normal Iterate Array: -1.000000 Normal Iterate Array: 0.000000 Normal Iterate Array: 0.000000 Normal Iterate Array: 1.000000 Normal Iterate Array: 0.000000 Normal Iterate Array: 1.000000 Normal Iterate Array: 0.000000 Normal Iterate Array: 0.000000 Normal Iterate Array: -0.000000 Normal Iterate Array: -0.000000 Normal Iterate Array: 1.000000 Normal Iterate Array: -1.000000 Normal Iterate Array: -0.000000 Normal Iterate Array: -0.000000 Normal Iterate Array: 0.000000 Normal Iterate Array: 0.000000 Normal Iterate Array: -1.000000 and these are the vertices which I think are v in the obj file? Iterate Array: 1.000000 Iterate Array: -1.000000 Iterate Array: -1.000000 Iterate Array: 1.000000 Iterate Array: -1.000000 Iterate Array: 1.000000 Iterate Array: -1.000000 Iterate Array: -1.000000 Iterate Array: 1.000000 Iterate Array: -1.000000 Iterate Array: -1.000000 Iterate Array: -1.000000 Iterate Array: 1.000000 Iterate Array: 1.000000 Iterate Array: -0.999999 Iterate Array: 0.999999 Iterate Array: 1.000000 Iterate Array: 1.000001 Iterate Array: -1.000000 Iterate Array: 1.000000 Iterate Array: 1.000000 Iterate Array: -1.000000 Iterate Array: 1.000000 Iterate Array: -1.000000 |
|
|
|
|
2
|
Java Game APIs & Engines / JOGL Development / Re: problem loading Float Buffer correctly
|
on: 2011-11-17 22:16:42
|
Hi, I figured out the problem the cube requires 8 vertice where I was putting in the length of the array this does work but interestingly puts a vertice in the middle of the cube, and also interestingly if you don't create any x, y or z coordinates it will create a vertice in the middle without any coordinates as long as you have a number in the vertice in the glDrawArrays. 1
| gl.glDrawArrays( GL2.GL_POINTS, 0, 1 ); |
Wrong 1
| gl.glDrawArrays( GL2.GL_POINTS, 0, pointsf.length ); |
Right 1
| gl.glDrawArrays( GL2.GL_POINTS, 0, 8 ); |
|
|
|
|
|
3
|
Java Game APIs & Engines / JOGL Development / problem loading Float Buffer correctly
|
on: 2011-11-17 21:13:10
|
Hi, I'm having a problem with loading the x,y,z vertices the problem is, is that I get the vertices loaded which resemble a Cube but I keep getting a vertice in the middle of the cube that shouldnt be their ? 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
| private float[]pointsf = { 1.000000f, -1.000000f, -1.000000f,
1.000000f, -1.000000f, 1.000000f,
-1.000000f, -1.000000f, 1.000000f,
-1.000000f, -1.000000f, -1.000000f,
1.000000f, 1.000000f, -0.999999f,
0.999999f, 1.000000f, 1.000001f,
-1.000000f, 1.000000f, 1.000000f,
-1.000000f, 1.000000f, -1.000000f };
private FloatBuffer rectVertices;
@Override
public void display(GLAutoDrawable gld )
{
GL2 gl = gld.getGL().getGL2();
gl.glClear( GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT );
gl.glMatrixMode( GL2.GL_MODELVIEW );
gl.glLoadIdentity();
gl.glTranslatef( 0.0f, 0.0f, -5.0f );
gl.glRotatef( 0, 1.0f, 0.0f, 0.0f );
gl.glRotatef( 0, 0.0f, 1.0f, 0.0f );
rectVertices = GLBuffers.newDirectFloatBuffer( pointsf.length );
rectVertices.put( pointsf );
rectVertices.rewind();
gl.glVertexPointer( 3, GL2.GL_FLOAT, 0, rectVertices );
gl.glEnableClientState( GL2.GL_VERTEX_ARRAY );
gl.glNormal3f( 0,0,1 );
gl.glDrawArrays( GL2.GL_POINTS, 0, pointsf.length ); gl.glDisableClientState( GL2.GL_VERTEX_ARRAY );
}
public void init(GLAutoDrawable gld )
{
GL2 gl = gld.getGL().getGL2();
glu = new GLU();
gl.glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
gl.glEnable( GL2.GL_DEPTH_TEST );
gl.glMatrixMode( GL2.GL_PROJECTION );
gl.glLoadIdentity();
glu.gluPerspective( 45.0, 500.0 / 500.0, 1.0, 500.0 );
gl.glPointSize( 5.0f );
} |
I would of tried to show this in a image but cant figure out how to load the image? [ img ] src = "C:\\Documents and Settings\Administrator\My Documents\My Pictures\pointArray.bmp"/> [/img] |
|
|
|
|
4
|
Java Game APIs & Engines / OpenGL Development / Problem with FloatBuffer Array
|
on: 2011-11-17 21:07:00
|
Hi, I'm having a problem with loading the x,y,z vertices the problem is, is that I get the vertices loaded which resemble a Cube but I keep getting a vertice in the middle of the cube that shouldnt be their ? 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
| private float[]pointsf = { 1.000000f, -1.000000f, -1.000000f,
1.000000f, -1.000000f, 1.000000f,
-1.000000f, -1.000000f, 1.000000f,
-1.000000f, -1.000000f, -1.000000f,
1.000000f, 1.000000f, -0.999999f,
0.999999f, 1.000000f, 1.000001f,
-1.000000f, 1.000000f, 1.000000f,
-1.000000f, 1.000000f, -1.000000f };
private FloatBuffer rectVertices;
@Override
public void display(GLAutoDrawable gld )
{
GL2 gl = gld.getGL().getGL2();
gl.glClear( GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT );
gl.glMatrixMode( GL2.GL_MODELVIEW );
gl.glLoadIdentity();
gl.glTranslatef( 0.0f, 0.0f, -5.0f );
gl.glRotatef( 0, 1.0f, 0.0f, 0.0f );
gl.glRotatef( 0, 0.0f, 1.0f, 0.0f );
rectVertices = GLBuffers.newDirectFloatBuffer( pointsf.length );
rectVertices.put( pointsf );
rectVertices.rewind();
gl.glVertexPointer( 3, GL2.GL_FLOAT, 0, rectVertices );
gl.glEnableClientState( GL2.GL_VERTEX_ARRAY );
gl.glNormal3f( 0,0,1 );
gl.glDrawArrays( GL2.GL_POINTS, 0, pointsf.length ); gl.glDisableClientState( GL2.GL_VERTEX_ARRAY );
}
public void init(GLAutoDrawable gld )
{
GL2 gl = gld.getGL().getGL2();
glu = new GLU();
gl.glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
gl.glEnable( GL2.GL_DEPTH_TEST );
gl.glMatrixMode( GL2.GL_PROJECTION );
gl.glLoadIdentity();
glu.gluPerspective( 45.0, 500.0 / 500.0, 1.0, 500.0 );
gl.glPointSize( 5.0f );
} |
I would of tried to show this in a image but cant figure out how to load the image? [ img ] src = "C:\\Documents and Settings\Administrator\My Documents\My Pictures\pointArray.bmp"/> [/img] |
|
|
|
|
6
|
Game Development / Newbie & Debugging Questions / Rotating a shape
|
on: 2011-07-17 09:32:49
|
Hi, I have a problem what I'm trying to do is make my fillRect() Rotate constantly as it moves around a point What i mean by this is, I have wrote the trigonometry so the fillRect() moves around a point constantly and then what I am trying to do is make the shape rotate as it goes around the point any help would be apprecited 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
| import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class PhysicGUI extends JFrame
{
private Trigonometry trig;
private MoveAnim move;
private Timer timer;
private int x;
private int y;
private double hypotenese;
private double cosine;
private double sine;
private double counter;
private int radianCounter;
public PhysicGUI()
{
super();
setSize( 500, 500 );
setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
trig = new Trigonometry();
move = new MoveAnim();
timer = new Timer( 500, move );
x = 250;
y = 250;
hypotenese = 60;
sine = 0;
cosine = 0;
counter = 0;
radianCounter = 0;
timer.start();
}
public void paint( Graphics g )
{
super.paint( g );
Graphics2D g2d = ( Graphics2D )g;
g2d.translate( 15, 15 );
g2d.rotate( radianCounter++, x , y );
g2d.fillRect( x + ( int )trig.getCosine() ,
y + ( int )trig.getSine(), 30, 30 );
}
public void move()
{
double radian = Math.toRadians( counter );
cosine = Math.cos( radian ) * hypotenese;
sine = Math.sin( radian ) * hypotenese;
counter = counter + 30;
if( counter > 360 )
{
counter = 0;
}
}
public class MoveAnim implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
repaint();
move();
}
}
public static void main( String[]args )
{
PhysicGUI gui = new PhysicGUI();
gui.setVisible( true );
}
} |
|
|
|
|
|
