Blender saves alpha channel as either fully opaque or transparent, nothing in between

[crayzcrinkle]

See the following, here is the rendered image inside of blender… note that the glare of objects (through post processing) goes out beyond the edges of these graphics:

Now have a look at the output when this render is saved:

It is not saving the glare outside of the solid objects. How to make it save this like it’s rendered?

The output file save settings are PNG, RGBA with 16 bits depth.

[joseph]

You don’t have it set up so your post-processing is actually being rendered- it’s not about the alpha channel, it’s just that the “glow” effect isn’t in your final render. Check out this thread Saving image file AFTER render and compositing