Shader with gradient to transparent effect.

Hi

I trying to create a similar effect to the attached screenshot of a rectangle object with a semi transparent going to a transparent (at the furthest point) like a gradient but with a slight glow to the actual base object separate. I cant explain very well so the image attached might help. What type of shader do i need?

Its for a android game so need to work well for mobile.

Cheers

Nick

 

I have made a similar effect in my package Volumetric Spot Light.
Here is some suggestion:
=> First you need a cube mesh with transparent material.
=> Then I think "Blend One One" maybe ok for your demand since you need "a slight glow".
=> The key is, find a way to gradient alpha value of your cube. As your picture more far away from the plane will have a less alpha value.