Experimenting with 3D shapes and have discovered a couple issues where the appearance on the watch (Samsung Active2) is not the same as in the app, with the app being the desired version.
First, I have a 3D rounded cube rotating within a 3D torus. The objects do not overlap, at least visually, and are set to the same āzā distance of zero. It looks perfect in the app, but on the watch, one appears in front of the other. The same thing happens with two of the same size tori set to the same z distance. Looks like they are occupying the same space on the app but appears that one is in front of the other on the watch.
Secondly, I have a typical 2D second ring moving clockwise on the outer border of the watch. I put twelve small 3D spheres on the ring at the hour markers. I have a bigger sphere that is at the start of the ring and set it up for the small spheres to not to appear until a big sphere is at that rotation. I have used the opacity for the small spheres so that they will not appear unless the number of seconds exceeds their position. The thought is for the small spheres to appear when the second ring is at their position, and to stay visible until the next minute starts. On the app, it works as desired. When the new minute starts, all 12 small spheres disappear until the ring and big leading sphere gets to that second value. On the watch, though, once the small spheres are visible, they never disappear.