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Import & spawn 3D objects

[4 Replies]
- 24-Jan-2011 05:45 AM
- Forum: Contributed Library Questions
Het guys,

This is my first post here. I hope I'm posting in the right forum.

I'm currently working on some audio reactive visuals, but I've got a problem with spawning 3D models.

I can spawn boxes perfectly fine, but when it comes to importing 3D models I've got a problem. I just can't figure it how to spawn them. The 3D models are made in 3DS Max, and exporting to different filetypes is no problem.

I'm using 2 classes, object classes, which each represent an object, and one objects class, which hold all the object classes.

As you might've guessed, I was trying to draw an 3D model in each object class. (Replaced it with a box right now)

Objects class:
1. public class Objects
2. {
3. ArrayList objects = new ArrayList();
4. float prevLow = 0;
5. float prevMid = 0;
6. float prevHigh = 0;
7. float amp;
9. void spawnObjects(int spawnAmmount, int lifeSpan, int spawnRadius1, int spawnRadius2)
10. {
11. for(int i = 0; i < spawnAmmount; i++)
12. {
13. objects.add(new Object(lifeSpan, spawnRadius1, spawnRadius2));
14. }
15. }
17. void updateObjects()
18. {
19. // Check if bass freq increases
20. amp = 1;
21. for(int i = fft.specSize()/50; i < (fft.specSize()/50)*2; i++)
22. {
23. if(fft.getBand(i) > prevLow*8)
24. {
25. amp = 50;
26. prevLow = fft.getBand(i);
27. }
28. }
29. prevLow = prevLow - (prevLow/10);
31. for(int i = 0; i < objects.size()-1; i++)
32. {
33. Object object = (Object) objects.get(i);
34. if(object.dead())
35. {
36. objects.remove(i);
37. }
38. else
39. {
40. object.update(amp);
41. }
42. }
43. }
45. void drawObjects()
46. {
47. for(int i = 0; i < objects.size()-1; i++)
48. {
49. Object object = (Object) objects.get(i);
50. object.draw();
51. }
52. }
53. }
Object class:
1. public class Object
2. {
3. int l,r1,r2;
4. float x,y,z,w,h,d,rx,ry,rz;
6. Object(int lifeSpan, int spawnRadius1, int spawnRadius2)
7. {
8. l = lifeSpan*fps;
9. r1 = spawnRadius1/2;
10. r2 = spawnRadius2/2;
11. x = 0;
12. y = 0;
13. z = 0;
15. while(
16. x < r1 && x > -r1 &&
17. y < r1 && y > -r1 &&
18. z < r1 && z > -r1
19. )
20. {
21. x = random(-r2,r2);
22. y = random(-r2,r2);
23. z = random(-r2,r2);
24. }
26. w = random(0,50);
27. h = random(0,50);
28. d = random(0,50);
29. rx = random(0,360);
30. ry = random(0,360);
31. rz = random(0,360);
32. }
34. void update(float amp)
35. {
36. // -1 one life
37. l -= 1;
39. // move
40. x += random(-1,1);
41. y += random(-1,1);
42. z += random(-1,1);
44. // resize
45. w += random(0,amp);
46. h += random(0,amp);
47. d += random(0,amp);
48. w = w - (w/10);
49. h = h - (h/10);
50. d = d - (d/10);
52. // rotate
53. rx += random(-1,1);
54. ry += random(-1,1);
55. rz += random(-1,1);
56. }
58. void draw()
59. {
60. // Transform world
61. translate(x,y,z);
62. rotateX(radians(rx));
63. rotateY(radians(ry));
64. rotateZ(radians(rz));
65. // Draw object
66. box(w,h,d);
67. // Transform world back
68. rotateZ(-radians(rz));
69. rotateY(-radians(ry));
70. rotateX(-radians(rx));
71. translate(-x,-y,-z);
72. }
74. boolean dead()
75. {
76. if(l < 1)
77. {
78. return true;
79. }
80. else
81. {
82. return false;
83. }
84. }
85. }
There's quite some extra code, like a camera class, a beat detector and a control panel.
If you need more code, please tell me.

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