DirectX Programmer
Soon to be the new Bill Gates
PSP7 alpha channels & TGA files
August 12, 2002 07:53 PM
Anyone know how to create a TGA file with alpha in PSP7? The hel says it can save 24bit TGAs + 8bits of alpha, but whenever i add an alpha channel to the image and save it as a TGA, the image comes out with the alpha pre-blended.
Cheers, Steve
Steve
DirectX Programmer
Soon to be the new Bill Gates
DirectX Programmer
Soon to be the new Bill Gates
Member of the Unban Mindwipe Society (UMWS)
170
August 12, 2002 10:51 PM
24+8 = 32. Alpha tga''s should be always 32bit.
what do you mean by pre-blended ? if you see a b/w or red mask of the alpha instead of the image you need to disable the alpha mask channel. it doesn''t needs to be enabled to be saved properly as an alpha channel.
what do you mean by pre-blended ? if you see a b/w or red mask of the alpha instead of the image you need to disable the alpha mask channel. it doesn''t needs to be enabled to be saved properly as an alpha channel.
http://www.strangefate.com
August 13, 2002 08:23 AM
What i mean is this. I convert the first image to a mask (Masks -> New -> From Image then Masks -> Save to Alpha Channel), and then load the mask onto the second image (Masks -> Load from alpha channel). The result is the third image. Then i save it as a TGA and reload it and the result is the fourth image.
Cheers for the reply,
Steve
Steve
DirectX Programmer
Soon to be the new Bill Gates
Cheers for the reply,
Steve
Steve
DirectX Programmer
Soon to be the new Bill Gates
Member of the Unban Mindwipe Society (UMWS)
170
August 13, 2002 11:03 AM
i''m a bit confused but i think it''s what i said.
When you leave the alpha channel visible it shows the alpha in red, and saves like that.
Make sure that you have the alpha channel disabled in the channels menu ...it''s in that small window where you see the different layers. (i don''t have PS7 but i guess it''s still in the same place). Leave the RGB channels visible and click on the alpha channel to make it invisible.
When you leave the alpha channel visible it shows the alpha in red, and saves like that.
Make sure that you have the alpha channel disabled in the channels menu ...it''s in that small window where you see the different layers. (i don''t have PS7 but i guess it''s still in the same place). Leave the RGB channels visible and click on the alpha channel to make it invisible.
http://www.strangefate.com
122
August 13, 2002 11:08 AM
Hey Steve,
Theres a fix for this which can be found on the adobe support site. Might have to do a little searching though.
-Lou
edit: here are links to the files
PC- http://www.adobe.com/support/downloads/detail.jsp?ftpID=1544
MAC- http://www.adobe.com/support/downloads/detail.jsp?ftpID=1543
[edited by - seven79 on August 13, 2002 12:11:36 PM]
Theres a fix for this which can be found on the adobe support site. Might have to do a little searching though.
-Lou
edit: here are links to the files
PC- http://www.adobe.com/support/downloads/detail.jsp?ftpID=1544
MAC- http://www.adobe.com/support/downloads/detail.jsp?ftpID=1543
[edited by - seven79 on August 13, 2002 12:11:36 PM]
Louhttp://www.louisferina.com
122
August 13, 2002 11:10 AM
oddly enough, psp7 doesnt let you save a tga as 32 bit... just 24 or
lower. to make a 32bit (tga with alpha) one, you just make your
alpha selection, then go to save selection > as alpha channel
then name it "alpha channel" instead of "selection 1" (dont know
if that''s 100% neccesary or not, i just do it anyway). then
save it.. it''ll save as a 32bit tga automatically.
-eldee
;another space monkey;
[ Forced Evolution Studios ]
lower. to make a 32bit (tga with alpha) one, you just make your
alpha selection, then go to save selection > as alpha channel
then name it "alpha channel" instead of "selection 1" (dont know
if that''s 100% neccesary or not, i just do it anyway). then
save it.. it''ll save as a 32bit tga automatically.
-eldee
;another space monkey;
[ Forced Evolution Studios ]
-eldee;another space monkey;[ Forced Evolution Studios ]
August 13, 2002 11:12 AM
Its red because i chose the background to be red (which was pretty stupid considering you said that the mask shows up red). The mask only shows up if i goto Masks -> View Mask.
I can''t seem to find the channels menu either (i''m useless
).
I''ll have a look for that fix seven79. Is it an actual bug then and not something stupid i''m doing?
I''ve got the font textures from Quake3 as well, they use alpha TGAs.
Cheers, Steve
Steve
DirectX Programmer
Soon to be the new Bill Gates
I can''t seem to find the channels menu either (i''m useless
).I''ll have a look for that fix seven79. Is it an actual bug then and not something stupid i''m doing?
I''ve got the font textures from Quake3 as well, they use alpha TGAs.
Cheers, Steve
Steve
DirectX Programmer
Soon to be the new Bill Gates
Member of the Unban Mindwipe Society (UMWS)
August 13, 2002 11:18 AM
eldee: It works, but hte alpha channel seems to be fixed at max (255).
Steve
DirectX Programmer
Soon to be the new Bill Gates
[edited by - Evil Bill on August 13, 2002 12:19:33 PM]
Steve
DirectX Programmer
Soon to be the new Bill Gates
[edited by - Evil Bill on August 13, 2002 12:19:33 PM]
Member of the Unban Mindwipe Society (UMWS)
122
August 13, 2002 12:10 PM
Its not a bug, just the way they decided to display the alpha in PS7. For some reason, Adobe decided to go against the standard and save transparency info instead of the alpha channel. The plugin works fine though, and reverts it back to the way photoshop used to do things.
-Lou
-Lou
Louhttp://www.louisferina.com
August 13, 2002 12:28 PM
Ah cool, thanks.
Steve
DirectX Programmer
Soon to be the new Bill Gates
Steve
DirectX Programmer
Soon to be the new Bill Gates
Member of the Unban Mindwipe Society (UMWS)
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement