[1.10] Glowing effect client-side?

[Ferrettomato]

Is there any way to render the spectral arrow's "Glowing" effect on a mob so that it's only visible on a certain player's client?

[Animefan8888]

Is there any way to render the spectral arrow's "Glowing" effect on a mob so that it's only visible on a certain player's client?

Look at what getting hit by a spectral arrow does then only do that client side on the client you want. Or you could just manually draw the same effect when your condition is met.

[Ferrettomato]

It just applies a potion effect. I tried only doing that if worldObj.isRemote, but the effect isn't visible.

[Animefan8888]

It just applies a potion effect. I tried only doing that if worldObj.isRemote, but the effect isn't visible.

You will have to render it yourself then using RenderPlayerEvent.Pre