Texture effects can be done by applying filters, shaders, or modifiers to the texture. Some examples of texture animation and effects are water waves, fire, smoke, wind, rain, snow, and dissolve.

You can set/add additional properties in that animation block to adjust your animation, see the wiki page linked above for more info. Make your animated texture png. See vanilla examples such as fire ...

John Smith Legacy + 3D Models - <a href=" Animated and Emissive: Ice and Fire and Spartan Weaponry - <a href=" Motschen’s Better Leaves - <a href=" X-Ray Ultimate - <a href=" Ore Variants - <a href=" ...

A Minecraft player and Redditor named u/AlexTesteria shared a couple of GIFs on the subreddit showcasing their 3D animated artwork featuring leaves and fire in the Vanilla version.