3D rotation - perspective

问题

public class MainActivity extends Activity {

LinearLayout rotator;

protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    rotator = (LinearLayout) findViewById(R.id.rotator);

    ObjectAnimator rotation = ObjectAnimator.ofFloat(rotator, "rotationY", 0, 360);
    rotation.setDuration(3000);
    rotation.start();

}
}

I've got above code, which is rotating View around Y axis. Problem is, that the perspective seems to be too "strong" - the edge of view that is in foreground becomes too big and the edge in background becomes too small. Is there any possibility to "lower down" the perspecitve factor?

回答1:

int distance = 1900;
float scale = getResources().getDisplayMetrics().density;
rotator.setCameraDistance(distance * scale);

So this is the solution for all screen densities.

来源：https://stackoverflow.com/questions/26512772/3d-rotation-perspective