Is it possible?
Erm ?
Please specify your question a bit more precise ;D
Sure is Wireframe rendering possible …
- Jens
Do you mean:
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
??
If so… yes. You can do that.
And to switch back to solid mode, use :
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
++
Chman
I want to render my aster with a vireframe instead of filled quadrants
package dts.client.impspace;
import org.lwjgl.opengl.GL;
import dts.client.e3d.StaticModel;
import dts.client.e3d.Texture;
import dts.client.e3d.Coord;
public class Aster extends StaticModel {
private double _radius;
private Texture _texture;
private int _n=100;//precision of grade divisions
private Coord _coord = new Coord(0.0f,0.0f,0.0f);
public Aster(float radius,Texture texture)
{
super();
//setRotation(new Coord(-90.0f,1.0f,0.0f));
_radius=radius;
_texture=texture;
compile();
}
public void compile()
{
GL.glNewList(_handle,GL.GL_COMPILE);
GL.glColor3f(1.0f,1.0f,1.0f);
this.render(0);
GL.glEndList();
}
public void draw(long t)
{
//processPosition();
GL.glColor3f(1.0f,1.0f,1.0f);
GL.glCallList(_handle);
}
public void render(int mode)
{
super.render(mode);
// TODO : redo without GLU int quadric=GLU.gluNewQuadric();
// GLU.gluQuadricNormals(quadric,GLU.GLU_SMOOTH);
// GLU.gluQuadricTexture(quadric, true);
_texture.bind();
// GLU.gluSphere(quadric,_radius,60,60);
//dont want to change varible name lazy
double r = _radius;
int n = _n;
Coord c = _coord;
final double PI = Math.PI;
final double TWOPI = Math.PI *2.0f;
final double PID2 = Math.PI * 0.5f;
int i,j;
double theta1,theta2,theta3;
//Coord e,p;
Coord e= new Coord();
Coord p= new Coord();
if (r < 0)
r = -r;
if (n < 0)
n = -n;
if (n < 4 || r <= 0) {
GL.glBegin(GL.GL_POINTS);
GL.glVertex3f(c.getX(),c.getY(),c.getZ());
GL.glEnd();
return;
}
for (j=0;j<n/2;j++) {
theta1 = j * TWOPI / n - PID2;
theta2 = (j + 1) * TWOPI / n - PID2;
GL.glBegin(GL.GL_QUAD_STRIP);
for (i=0;i<=n;i++) {
theta3 = i * TWOPI / n;
e.setX((float)(Math.cos(theta2) * Math.cos(theta3)));
e.setY((float)(Math.sin(theta2)));
e.setZ((float)(Math.cos(theta2) * Math.sin(theta3)));
p.setX((float)(c.getX() + r * e.getX()));
p.setY((float)(c.getY() + r * e.getY()));
p.setZ((float)(c.getZ() + r * e.getZ()));
GL.glNormal3f(e.getX(),e.getY(),e.getZ());
GL.glTexCoord2f(i/(float)n,2*(j+1)/(float)n);
GL.glVertex3f(p.getX(),p.getY(),p.getZ());
e.setX((float)(Math.cos(theta1) * Math.cos(theta3)));
e.setY((float)(Math.sin(theta1)));
e.setZ((float)(Math.cos(theta1) * Math.sin(theta3)));
p.setX((float)(c.getX() + r * e.getX()));
p.setY((float)(c.getY() + r * e.getY()));
p.setZ((float)(c.getZ() + r * e.getZ()));
GL.glNormal3f(e.getX(),e.getY(),e.getZ());
GL.glTexCoord2f(i/(float)n,2*j/(float)n);
GL.glVertex3f(p.getX(),p.getY(),p.getZ());
}
GL.glEnd();
}
}
}
nm added this and it worked
GL.glPolygonMode(GL.GL_FRONT_AND_BACK,GL.GL_LINE);
heh… next question… if I want to show the wires as well as the texture… how would I proceed… I plan to use the wires and longtitude and latitude
Draw it twice; once with textures, the second time, using line mode.
Cas
Changed it to this… I render it twice… but should i create two asters?
package dts.client.impspace;
import org.lwjgl.opengl.GL;
import dts.client.e3d.StaticModel;
import dts.client.e3d.Texture;
import dts.client.e3d.Coord;
public class Aster extends StaticModel {
private double _radius;
private Texture _texture;
private int _n=50;//precision of grade divisions
private Coord _coord = new Coord(0.0f,0.0f,0.0f);
public Aster(float radius,Texture texture)
{
super();
//setRotation(new Coord(-90.0f,1.0f,0.0f));
_radius=radius;
_texture=texture;
compile();
}
public void compile()
{
GL.glNewList(_handle,GL.GL_COMPILE);
GL.glColor3f(1.0f,1.0f,1.0f);
this.render(1);
this.render(0);
GL.glEndList();
}
public void draw(long t)
{
//processPosition();
GL.glColor3f(1.0f,1.0f,1.0f);
GL.glCallList(_handle);
}
public void render(int mode)
{
super.render(mode);
// TODO : redo without GLU int quadric=GLU.gluNewQuadric();
// GLU.gluQuadricNormals(quadric,GLU.GLU_SMOOTH);
// GLU.gluQuadricTexture(quadric, true);
_texture.bind();
// GLU.gluSphere(quadric,_radius,60,60);
//dont want to change varible name lazy
double r = _radius;
int n = _n;
Coord c = _coord;
final double PI = Math.PI;
final double TWOPI = Math.PI *2.0f;
final double PID2 = Math.PI * 0.5f;
if (mode==1)GL.glPolygonMode(GL.GL_FRONT_AND_BACK,GL.GL_LINE);
if(mode==0)GL.glPolygonMode(GL.GL_FRONT_AND_BACK,GL.GL_FILL);
int i,j;
double theta1,theta2,theta3;
//Coord e,p;
Coord e= new Coord();
Coord p= new Coord();
if (r < 0)
r = -r;
if (n < 0)
n = -n;
if (n < 4 || r <= 0) {
GL.glBegin(GL.GL_POINTS);
GL.glVertex3f(c.getX(),c.getY(),c.getZ());
GL.glEnd();
return;
}
for (j=0;j<n/2;j++) {
theta1 = j * TWOPI / n - PID2;
theta2 = (j + 1) * TWOPI / n - PID2;
GL.glBegin(GL.GL_TRIANGLE_STRIP);
for (i=0;i<=n;i++) {
theta3 = i * TWOPI / n;
e.setX((float)(Math.cos(theta2) * Math.cos(theta3)));
e.setY((float)(Math.sin(theta2)));
e.setZ((float)(Math.cos(theta2) * Math.sin(theta3)));
p.setX((float)(c.getX() + r * e.getX()));
p.setY((float)(c.getY() + r * e.getY()));
p.setZ((float)(c.getZ() + r * e.getZ()));
GL.glNormal3f(e.getX(),e.getY(),e.getZ());
GL.glTexCoord2f(i/(float)n,2*(j+1)/(float)n);
GL.glVertex3f(p.getX(),p.getY(),p.getZ());
e.setX((float)(Math.cos(theta1) * Math.cos(theta3)));
e.setY((float)(Math.sin(theta1)));
e.setZ((float)(Math.cos(theta1) * Math.sin(theta3)));
p.setX((float)(c.getX() + r * e.getX()));
p.setY((float)(c.getY() + r * e.getY()));
p.setZ((float)(c.getZ() + r * e.getZ()));
GL.glNormal3f(e.getX(),e.getY(),e.getZ());
GL.glTexCoord2f(i/(float)n,2*j/(float)n);
GL.glVertex3f(p.getX(),p.getY(),p.getZ());
}
GL.glEnd();
}
}
}