Alpha Mask and Gimp Gone Crazy

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tuna57
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Alpha Mask and Gimp Gone Crazy

Post by tuna57 » Mon Mar 15, 2021 8:58 pm

Started having crazy behavior with my Twilight alpha mask and Gimp. Going through the proper procedure , open Gimp with my Twilight render image , right click add alpha mask to image. Do a copy and paste with Twilight alpha mask and anchor the floating layer. Problem is I'm getting a partially transparent final image. When I import the image to use in the masked area it ghosts through the whole image. Any ideas whats happening ? Posting an example image.... :wall: :!
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bad mask.jpg
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alvydas
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Re: Alpha Mask and Gimp Gone Crazy

Post by alvydas » Tue Mar 16, 2021 10:50 am

Adjust alpha mask contrast in Twilight or in Gimp
https://www.dropbox.com/s/ltiytqmt9nksr ... p.wmv?dl=0.
Look 5.35s
Last edited by alvydas on Tue Mar 16, 2021 3:52 pm, edited 1 time in total.

Fletch
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Re: Alpha Mask and Gimp Gone Crazy

Post by Fletch » Tue Mar 16, 2021 12:30 pm

Agree with Alvydas, when you save your Alpha Mask Rendering from Twilight Render be SURE to have Tone Mapping and all post Processing set to NONE. :!:

tuna57
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Joined: Wed Jul 09, 2014 11:54 pm
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Re: Alpha Mask and Gimp Gone Crazy

Post by tuna57 » Tue Mar 16, 2021 3:19 pm

alvydas , Fletch , Thanks bunches. Now that you explained my goof up all the renders with this behavior had the exposure dialed up for saving. Never crossed my mind to dial it back down for the alpha mask . Me be dumbass :^: :whistle:
Last edited by tuna57 on Wed Mar 17, 2021 4:54 pm, edited 1 time in total.
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Fletch
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Re: Alpha Mask and Gimp Gone Crazy

Post by Fletch » Tue Mar 16, 2021 7:18 pm

no, easy mistake I've made myself, that's why I know. ;)

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