Alpha Channel: Want a gradient blend fade of transparency using Targa with alpha Channel

Questions & Answers
1

I have a cone of light that I want to use for a lighthouse:

Using alpha channels with a grey to white gradient shape in the alpha channel. I am using photoshop to create rgb texture with a alpha channel and saving as a targa file.

I attempting changing the shader in Unity to transparent/cutout/diffuse but that proved unfruitful.

I want the rotating cone to start as visible and fade to invisible.

Made and exported to fbx using maya

I used that material but when I start the scene in unity the entire cone is still visible. Here is what I am looking at and the setting being used.

http://www.flickr.com/photos/47648476@N06/5665855892/in/photostream/lightbox/

http://www.flickr.com/photos/47648476@N06/5665855958/in/photostream/lightbox/

2

I don't know about Targa (I would think it should work), have you verified that the alpha channel is AOK in the bitmap file itself? Can you try PNG?

Also, for light, I think you might want Unlit/Transparent or maybe some kinda Self-Illum. with transparency. Diffuse is just going to have light bouncing off of your light beam.