forester opened this issue on Aug 12, 2018 ยท 13 posts
forester posted Mon, 13 August 2018 at 5:02 PM
Sorry, unfortunately we will never be able to animate boat wakes and most water (fountains and waterfalls) in Vue. The reason is that the number of polygons and vertices changes as water falls, and boat wakes form. Vue animation technology (like that of most 3D apps) believes that the position and orientation of polygons and vertices change during the course of an animation, but not that new polygons are forming (and being deleted) at each animation step.
So, Vue's particle technology is what is used for "moving liquids" as well as other things. It is possible to create a seemingly animated boat wake by using the particle system. Something you can do for yourself. You create an emitter of some appropriate kind, and animate it's movement. Specifically, you animate a boat, and also animate the movement of the emitter so that it seems like it is moving in tandem with the stern of the boat. (In Vue, you cannot attach an emitter to a moving object. Perhaps, we should make a request for this in a future release.) For water fountains, you create an emitter pointing up into the air, locate it in a suitable place on the fountain, add some gravity, and that's it. For waterfalls, you position an emitter at the top, maybe hidden in the stones at the top, add some gravity, and get out of the way to avoid getting wet.
I will concede that animating a boat wake is difficult and tricky in Vue - takes some practice. And maybe I can help with this a bit. I'll look into it.
But, this is the technology to use - the Vue Particle System.