Need help saving an png with an alpha map

Asked Sep 25 '21 at 18:07

Active Sep 25 '21 at 18:07

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I want render an image with a flame in cycles using volumetrics but the problem is whenever I am trying to save the image it save the image completely white(i.e. only an alpha map and no image). It doesn't happen with any other non-alpha formats like jpeg.

If anyone can figure out what the problem is then it would be a great help

Blend File:-https://pasteall.org/blend/ddcfc5cf25c441eba5832d68323f2ee3

asked Sep 25 '21 at 18:07

Maulik Sharma

This is just a work around using Gimp untill someone comes up with a how to do it in Blender. In Blender, Render Properties > Film > uncheck the Transparent option. Now the background is Black in render view. Render and Save as png image with the RGBA option selected. Open image in Gimp then, Layer > Transparency > Color to Alpha > change colour to Black and then OK the Color to Alpha. You now have the transparent background for your flame. – 3fingeredfrog Sep 25 '21 at 19:29
Related questions: transparent background for volumetric smoke? Bug? and (linked in the first one) How to properly render smoke on a transparent background? – Blunder Sep 25 '21 at 23:35

Need help saving an png with an alpha map

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