Camera Angles in Java 3D

Question

Hi,
I am using lookAt command in Java 3D to view my drawings from different camera angles. However, I am having some difficuty doing that.
I have used gluLookAt with OpenGl and I was wondering if there is a difference between the two. I am trying to use the command in Java exactly in the same way I was in C++ but the two are behaving differently.
For example.
I have drawn grid lines which I want to view from different locations instead of looking it at from the normal 0,0,1 location. I want to view it from location such as 1,1,1 (top right corner)
Also, does it have to do with the way I am drawing my gridlines. Currently I am drawing the lines with width of 25 starting at (x=-300,y=-200) using the following code
Transform3D t3 = new Transform3D ();
// Horizontal Lines
Point3f[] verts = {
new Point3f (-300.0f, 0.0f, 0.0f),new Point3f(275.0f, 0.0f, 0.0f)
Color3f grey;
int y;
for (y=0;y<16;y++)
Color3f[] colors = {
grey, grey
t3.setTranslation (new Vector3d(0.0, -200+y*25.0, -800.0));
Point3f[] verts1 = {
new Point3f (0.0f, -200.0f, 0.0f),new Point3f(0.0f, 175.0f, 0.0f)
for (y=0;y<24;y++)
     t3.setTranslation (new Vector3d(-300+y*25.0,0.0, -800.0));
Please let me know.
Thanks, Divya

Answer 1

Hi,
Ideally for best results, you need a physics engine to work along with your code. Open source physics engines available are Newton, ODE, Torque.
Else you could use OpenGL api and hard code equations for velocity, gravity, etc. to give best results.
I may be completely wrong, but this is the approach I followed when I was working on a similar project.
Hope this helps,
pd