I can see randomly would look odd. What about triggering wind animations every random duration, but delay triggering the animations based on the skeleton position, eg from right to left.

Every notice bushes in Mario games? They dance to the music and are super cool.

Looks like a lot of the background elements in Ori are just wiggling loops. That might be sufficient, but I guess that depends on a lot of things. Just don't forget to finish your game!

From a shader programming point of view, the cited examples above (e.g. Ori's foliage) are well suited for animation in shaders because there you have some vertices at the base (ground level) and some further away from this fixed attachment position. The typical grass shader will move the verices around (e.g. in sine-wave motion) depending on how far away from the fixed attachment position they are.

If on the other hand as in your game, you have a top down view with all vertices at the outer shell and equally distant from the fixed point, this will not be well suited to be animated in a shader (and maybe also not to be animated in general?). You would need to add some overlapping geometry for each branch / bushel to be able to animate it in a convincing way, such as can be seen here. You can skip the trunk and everything hidden from top view of course.

Nevertheless, I would also not like to recommend changing your trees entirely, but maybe it's feasible to split and overlap some of the regions, to gain a lot with little effort.

warmanw yazdı

- Can we use tracks with SkeletonMecanim I didnt find an info about it

Yes, you can use multiple mecanim layers. However, note that the mecanim integration does not provide the full feature set of the SkeletonAnimation especially in terms of blending/transition customization. You could give it a try though, just add multiple layers in the Mecanim Animator window and add your animations as you normally would.

warmanw yazdı

We will slice the assets more deeply to make more custom animations.

I do not yet see slices in the images you posted, or are these other images? What I think might improve the look would be e.g. 3 layers per tree that show different transparent areas, and each layer is animated differently, so that not all parts wobble in the same direction and at the same speed.

Maybe it looks nice if you add more high-frequency animation to simulate small leaves moving by making the top layer have a noisy transparency pattern, e.g. as when using Photoshop's dissolve layer blend mode. It's just an idea though.

Looks neat, thanks for sharing! Do you have a GIF or video of the finished wind?

Yep! Was just editing the post to add the video (linked from imgur). The video was 80kb too large to upload here ^_^.

From this point we are able to see how our animations react when cascaded and can make adjustments accordingly, which Arman has already begun doing (and the new animations are noticeably better than the ones linked even in my gif because I haven't had time to swap the new anims in Unity). Additionally, we have a couple more things left on the to-do list to make this foliage feel great, such as including the shadows in the animations and also not starting all the animations at the same time (you can see their idles all playing at the same time).

Video relinked here:

Cool, it looks very nice! I can see how relatively simple trees wouldn't look good animated continuously. This is a neat effect!

This looks very cool! Thanks for sharing!

does anyone have this solution with an standard HLSL shader? I do not use Unity runtime
best
Cristian

Please note that the code from Unity shaders can mostly be transferred 1:1 to "normal" HLSL shader code. So you should be able to extract the critical parts and use them on an adjusted version of your xna shaders.