Masking Glow Effect

[Joey35233]

I am trying to make a street lamp, where there is a cylindrical light and a cover on top of it. The issue is, the light from the cylinder bleeds over onto the lip of the cover, which is obviously not how it would normally work. I am at a loss for how to mask this glow because the layer masks only alter opacity, which doesn't effect the glow. Any help or advice would be appreciated!

[MarmosetKen]

Hi Joey,

The glow bleeds because glow happens all at once for the entire image (it would be very very slow otherwise). You can create a fake, per-layer glow by using the technique I outline in this tutorial: https://www.marmoset.co/posts/glow-classic/ This fake glow WILL be masked by other layers.

Another thing you could try is creating a pixel layer (if you're using the 2.6 Beta branch), setting its blend mode to additive, and manually drawing in the glow there.


Ken

[Joey35233]

Ok. Thanks. It's a shame that it can't happen otherwise, but for performance I am willing to take it this way. I also could just use Photoshop or a similar tool on the exported image to get rid of the glow so it's not too bad. Thanks for the response! One other question, is to be expected that when moving a selection around the fps drops significantly?

[MarmosetKen]

Originally posted by Joey35233:

Ok. Thanks. It's a shame that it can't happen otherwise, but for performance I am willing to take it this way. I also could just use Photoshop or a similar tool on the exported image to get rid of the glow so it's not too bad. Thanks for the response! One other question, is to be expected that when moving a selection around the fps drops significantly?

It's not unexpected, if you have a large document. But I can take a look at it and see if I can speed it up for our next release (:

Ken

[Joey35233]

Wow! Thanks. I haven't experimented yet with big trexels canvases so I have experienced this on even just the default. Hitting Ctrl + A even on a pretty sparse layer makes it drop pretty significantly, and even if nothing is being moved. I just thought it was odd.