有人可以给我提供一个如何在 JmonkeyEngine 中绘制 10000 个随机 3D 点(x、y、z 范围为 0..100)的示例吗?有人建议我使用 Jmonkey 而不是 java3D。我对两者都是新手。 谢谢
最佳答案
这是用 JMonkey2 制作的。下面的代码在 0 到 100 之间生成了 10000 个球体。这最终形成一个几乎满了的盒子。使用WASD控制相机。
package wall;
import java.util.Random;
import java.util.concurrent.Callable;
import com.jme.math.Vector3f;
import com.jme.scene.shape.Sphere;
import com.jme.util.GameTaskQueueManager;
import com.jmex.editors.swing.settings.GameSettingsPanel;
import com.jmex.game.StandardGame;
import com.jmex.game.state.DebugGameState;
import com.jmex.game.state.GameStateManager;
public final class SphereExample {
private static final int MAX = 100;
private static final int TOTAL = 10000;
public static void setupGame() {
final DebugGameState state = new DebugGameState() {
@Override
public void update(final float timeStep) {
// Update the game state
super.update(timeStep);
}
};
final Random random = new Random();
for (int i = 0; i < TOTAL; i++) {
final Sphere sphere = new Sphere("sphere", 5, 5, 1);
sphere.setLocalTranslation(random.nextInt(MAX),
random.nextInt(MAX), random.nextInt(MAX));
sphere.updateRenderState();
state.getRootNode().attachChild(sphere);
}
GameStateManager.getInstance().attachChild(state);
state.setActive(true);
}
public static void main(final String[] args) throws Exception {
final StandardGame game = new StandardGame("Points");
if (GameSettingsPanel.prompt(game.getSettings())) {
game.start();
GameTaskQueueManager.getManager().update(
new Callable<Void>() {
@Override
public Void call() throws Exception {
setupGame();
game.getCamera() // moves the camera to the middle
// of the spheres
.setFrame(
new Vector3f(50.0f,
50.0f, 50.0f),
new Vector3f(-1.0f, 0.0f,
0.0f),
new Vector3f(0.0f, 1.0f,
0.0f),
new Vector3f(0.0f, 0.0f,
-1.0f));
game.getCamera().update();
game.getCamera().apply();
return null;
}
});
}
}
}
关于Java:在 JMonkey 中绘制 3D 点,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10418433/