Add opacity changing for 3d objects

I want yhis feature for making 3d horror game and i want to make Ghost or jump scare or to make simple arrow Indicates to the area to which the player must go
It will be very useful to add a shaky feature and thank you for reading

There are various extensions that allow this for 3D models.

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really!!! is there any for 3d boxes?!

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Then give its name… :upside_down_face:

When did I ever use the engine?

Don’t those have built in opacity?

It’s the “mesh material” one.

I saw and tried it but i don’t know why the extension didn’t work with me