Show mouse click feedback on textured 2d plane button

Questions & Answers
1

I have a button that is a plane with a texture on. I need a way for the user to tell if it has been clicked. Is there something about the material I can change to make it look darker or lighter?

2

From a quick look at the Unlit transparent shader, there looks like there is no color property to manipulate. The best way to do this would be to have a second Texture with a lowered alpha to toggle between.

If you don’t want to change the color or make another texture, you could always do a small animation to indicate that it has been pressed.

3

Some Options:

  • You could create a new shader based
    on the Unlit Transparent one, and
    give it a colour property that you
    can then change at runtime. Then
    you’d be able to use your existing
    code.

  • Change the texture when the mouse
    is hovering over it.

  • Draw the item in 2D using GUI (this assumes your button isn’t SUPPOSED to be a 3D object) and use GUI.color to influence both colour and transparency.