Hey Guys. I'm new here and I'm new to the LWJGL world.
I'm developing an Eclipse plug-in for 3D Software Visualization.
I've decided to move to LWJGL because of several reasons.
I've used a slightly different version of http://www.java2s.com/Code/Java/SWT-JFace-Eclipse/drawarotatingtorususingtheLWJGLOpenGLbinding.htm in order to test if everything works.
I'm on PPC MacOSX 10.5.2 with Eclipse 3.3
But when running it I see the following error
Quote2008-05-01 10:46:29.151 java[4490:10b] [Java CocoaComponent compatibility mode]: Enabled
2008-05-01 10:46:29.156 java[4490:10b] [Java CocoaComponent compatibility mode]: Setting timeout for SWT to 0.100000
and I see only the blue background without the "Torus".
Can please anyone help me getting started with LWJGL?
THANKS A LOT
My code:
package org.speriamo.funziona.views;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.ui.part.*;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.opengl.GLCanvas;
import org.eclipse.swt.opengl.GLData;
import org.eclipse.swt.SWT;
import org.lwjgl.LWJGLException;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GLContext;
import org.lwjgl.util.glu.GLU;
public class Dio extends ViewPart {
public Dio() {
}
public void createPartControl(Composite parent) {
parent.setLayout(new FillLayout());
GLData data = new GLData();
data.doubleBuffer = true;
final GLCanvas canvas = new GLCanvas(parent, SWT.NONE, data);
canvas.setCurrent();
try {
GLContext.useContext(canvas);
} catch (LWJGLException e) {
e.printStackTrace();
}
canvas.addListener(SWT.RESIZE, new Listener(){
public void handleEvent(Event event) {
Rectangle bounds = canvas.getBounds();
float fAspect = (float) bounds.width / (float) bounds.height;
canvas.setCurrent();
try {
GLContext.useContext(canvas);
} catch(LWJGLException e) { e.printStackTrace(); }
GL11.glViewport(0, 0, bounds.width, bounds.height);
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glLoadIdentity();
GLU.gluPerspective(45.0f, fAspect, 0.5f, 400.0f);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glLoadIdentity();
}
});
GL11.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
GL11.glColor3f(1.0f, 0.0f, 0.0f);
GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
GL11.glClearDepth(1.0);
GL11.glLineWidth(2);
GL11.glEnable(GL11.GL_DEPTH_TEST);
new Runnable() {
int rot = 0;
public void run() {
if (!canvas.isDisposed()) {
canvas.setCurrent();
try {
GLContext.useContext(canvas);
} catch(LWJGLException e) { e.printStackTrace(); }
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
GL11.glClearColor(.3f, .5f, .8f, 1.0f);
GL11.glLoadIdentity();
GL11.glTranslatef(0.0f, 0.0f, -10.0f);
float frot = rot;
GL11.glRotatef(0.15f * rot, 2.0f * frot, 10.0f * frot, 1.0f);
GL11.glRotatef(0.3f * rot, 3.0f * frot, 1.0f * frot, 1.0f);
rot++;
GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_LINE);
GL11.glColor3f(0.9f, 0.9f, 0.9f);
drawTorus(1, 1.9f + ((float) Math.sin((0.004f * frot))), 15, 15);
canvas.swapBuffers();
canvas.getDisplay().timerExec(50, this);
}
}
}.run();
}
static void drawTorus(float r, float R, int nsides, int rings) {
float ringDelta = 2.0f * (float) Math.PI / rings;
float sideDelta = 2.0f * (float) Math.PI / nsides;
float theta = 0.0f, cosTheta = 1.0f, sinTheta = 0.0f;
for (int i = rings - 1; i >= 0; i--) {
float theta1 = theta + ringDelta;
float cosTheta1 = (float) Math.cos(theta1);
float sinTheta1 = (float) Math.sin(theta1);
GL11.glBegin(GL11.GL_QUAD_STRIP);
float phi = 0.0f;
for (int j = nsides; j >= 0; j--) {
phi += sideDelta;
float cosPhi = (float) Math.cos(phi);
float sinPhi = (float) Math.sin(phi);
float dist = R + r * cosPhi;
GL11.glNormal3f(cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
GL11.glVertex3f(cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
GL11.glNormal3f(cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
GL11.glVertex3f(cosTheta * dist, -sinTheta * dist, r * sinPhi);
}
GL11.glEnd();
theta = theta1;
cosTheta = cosTheta1;
sinTheta = sinTheta1;
}
}
public void setFocus() {
}
}