Object renders on top of another when shading

[amber bobcat]

Okay guys, I'm having an issue with an object rendering on top of the other when making a shader for a fireball of sorts. I don't understand what goes on.

I have two objects with the same shader. One of them is an elongated hemisphere, for the main fireball, and the other one is a cillinder with no bases, for the trail. I want the fireball to always be rendered on top of the trail, but when the camera is "behind" the object, it renders the trail on top of the fireball. I don't understand why that happens, help please?

[fading trail]

Sorting of alpha-blended transparents can be tricky. Objects will sort based on whichever is closest to the camera

You could apply same shader but different materials to each section, adjusting the Sorting Priority (or render queue) on one to force the render order

Alternatively, may be able to combine the objects/meshes in modelling software (i.e. Blender). But need to combine them in a specific way to make sure the main fireball faces appear over the trail faces. See example

[amber bobcat]

I've give it a try, adjusting the sorting priority fixed the issue

[frosty geyser]

The drawback of sorting priority is that it isn't per effect but changes their relative render order globally

If that's a limitation the mesh combining method may be the best

But if they must remain separate objects my method would be a script that offsets the parts towards or away from the camera ever so slightly so that they resolve the depth difference only between them exactly as you want