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I am trying to make a pillar cloud using an image transparency. I have a basic node set up for making the image show with transparent background. But I would like to make the cloud pillar glow. I am not sure how to set up the nodes to make this happen. I am using Blender 2.79 enter image description here

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Given that you are using an image to determine transparency, you can change the brightness by using any of the following nodes: gamma, color ramp, Bright Cont or even a Converter>Math node to affect the values.

enter image description here

To make things glow there are already endless posts on the subject in this site.

Start with this one:

Glow with depth in Blender?

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  • $\begingroup$ I tried the different nodes you suggested in the Alpha but it seems the transparency no longer works. I used a half of a cylinder to put this cloud object on and it starts showing when I put a new node where you suggested. In some cases it goes solid. I am sure I am doing something wrong. Thanks for the link for glowing objects. $\endgroup$ – Allen May 31 at 21:46

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