Light emission from transparent texture.

Support Materials and Textures
1

I am trying to import a texture, coloured or black and white and emit light through it with a transparent background.

In this SS you can see the nodes to create white light through a texture but how do i make the Black area completely transparent?

Screen Shot 2017-04-12 at 12.49.02.jpg2300×701 128 KB

Also i would like to do it using a full colour.

Any help would be great thanks.

2

combine emision and transparent using mix shaders node and B\W gradient as factor for it.

3

Thanks very much Ko. There are so many basic bits i’m still learning.