How to spin an object with both x and z-rotation in M3G?

Question

I want to spin an object with both x and z-rotation in M3G. I get a good result when I implement this in OpenGL, but the combined rotation doesn't get right when I try to do this in M3G. The x rotation and the z rotation looks like they should when I only use one of them. This is achieved by adding only spinAnimationTrack or rotationAnimationTrack. The problem is that the rotation gets messed up when I add both spinAnimationTrack and rotationAnimationTrack. What am I doing wrong? This is my code:
KeyframeSequence spinKeyframes =
new KeyframeSequence(3, 4, KeyframeSequence.SLERP);
spinKeyframes.setRepeatMode(KeyframeSequence.LOOP);
spinKeyframes.setDuration(4000);
spinKeyframes.setKeyframe(0, 0,
getRotationQuaternion(-50.0f, new float[]{1.0f, 0.0f, 0.0f}));
spinKeyframes.setKeyframe(1, 2000,
getRotationQuaternion(50.0f, new float[]{1.0f, 0.0f, 0.0f}));
spinKeyframes.setKeyframe(2, 4000,
getRotationQuaternion(-50.0f, new float[]{1.0f, 0.0f, 0.0f}));
AnimationTrack spinAnimationTrack =
new AnimationTrack(spinKeyframes,
AnimationTrack.ORIENTATION);
AnimationController animatorS = new AnimationController();
spinAnimationTrack.setController(animatorS);
animatorS.setSpeed(0.4f * speed, 0);
KeyframeSequence rotationKeyframes =
new KeyframeSequence(2, 4, KeyframeSequence.SLERP);
rotationKeyframes.setRepeatMode(KeyframeSequence.LOOP);
rotationKeyframes.setDuration(4000);
rotationKeyframes.setKeyframe(0, 0,
getRotationQuaternion(359.0f, new float[]{0.0f, 0.0f, 1.0f}));
rotationKeyframes.setKeyframe(1, 4000,
getRotationQuaternion(0.0f, new float[]{0.0f, 0.0f, 1.0f}));
AnimationTrack rotationAnimationTrack1 =
new AnimationTrack(rotationKeyframes,
AnimationTrack.ORIENTATION);
rotationAnimationTrack1.setController(animatorR1);
animatorR1.setSpeed(0.4f * speed, 0);
mesh1.addAnimationTrack(spinAnimationTrack);
mesh1.addAnimationTrack(rotationAnimationTrack1);

Answer 1

People often make this harder than it is. It's usually not necessary to using clipping paths or to make cuts confined to the areas of overlap to make objects appear to intertwine. Usually, you can simply cut where objects do not overlap. There are no masks, clipping paths, pathfinders, etc., involved in this knot:
Your specific situation may be somewhat complicated by the use of drop shadows, depending on the specific parameters.
JET