Sorry your browser is not supported!

You are using an outdated browser that does not support modern web technologies, in order to use this site please update to a new browser.

Browsers supported include Chrome, FireFox, Safari, Opera, Internet Explorer 10+ or Microsoft Edge.

FPSC Classic Product Chat / Alpha channal in GIMP?

Author
Message
defiler
17
Years of Service
User Offline
Joined: 4th Apr 2009
Location: Canada
Posted: 17th Aug 2010 01:54 Edited at: 17th Aug 2010 01:58
Link
Hey guys, To the people here using gimp, is there a way to have a alpha channal in the normal map using gimp?

thanks.

Edit: looked at the gimp faq and got this

How do I save an image with an alpha channel?

Before saving the image, select "Layers->Flatten Image". It would be more intuitive if it was called something like "Remove Alpha"...but that's generally not its primary function. It just happens to remove alpha.

it says it removes the alpha, which i dont want, or am i reading it wrong?

Limitless Box studios current project: Lost Contact
Back to top
Profile PM Email
Kravenwolf
17
Years of Service
User Offline
Joined: 14th Apr 2009
Location: Silent Hill
Posted: 17th Aug 2010 02:37 Edited at: 17th Aug 2010 02:40
Link
Right-click on the normal map layer and select add alpha channel. Add an alpha channel to any other layers as well (ie, the spec map). Save in .dds format.








Kravenwolf

Back to top
Profile PM Email Website
defiler
17
Years of Service
User Offline
Joined: 4th Apr 2009
Location: Canada
Posted: 17th Aug 2010 02:57
Link
It worked, thanks Kravenwolf!

Limitless Box studios current project: Lost Contact
Back to top
Profile PM Email
Kravenwolf
17
Years of Service
User Offline
Joined: 14th Apr 2009
Location: Silent Hill
Posted: 17th Aug 2010 08:40 Edited at: 17th Aug 2010 08:42
Link
No problem. I actually just got around to tinkering with bond1's new shaders a few days ago, so it's been a good experience for me to once again get accustomed to some of GIMP'S other features.

Anyway, I just found out a few moments ago that you're actually going to want to use a layer mask on your normal map layer to hold the alpha channel. The first way that I described (without using the layer mask) is actually going to double your file size to get the same result (because the first way uses two layers, each with an alpha channel)












Kravenwolf

Back to top
Profile PM Email Website
defiler
17
Years of Service
User Offline
Joined: 4th Apr 2009
Location: Canada
Posted: 18th Aug 2010 04:15
Link
Hmm i see, well atleast there are 2 ways to do this in gimp!

Limitless Box studios current project: Lost Contact

Back to top
Profile PM Email
Back to top

Login to post a reply

Server time is: 2026-07-04 15:24:20
Your offset time is: 2026-07-04 15:24:20