Glowing particles not visible when rendering RGBA with Transparent Background I have glowing particles (emmiter shader) visible in render with RGB background. Once I switch to render with Transparent background (Render -> Film -> Transparent) I cannot see the particles anymore. I can only see particles when there's another object in the scene behind them.
I have deleted the particle system and setup an new one, and this time it works. I cannot explain why I wasn't able to see the particles on the transparent background before.