Ortolan wrote:http://www.thesprayshop.net/tutorials/t ... lpha.shtml
You can save as PNG, it does support an alpha channel.
(
Rassilon wrote:Photoshop only supports a transparency alpha 1 channel...It doesnt support the specular alpha 0 however...If you have intentions of developing spec PNG files...Use the GIMP...
http://www.gimp.org
Good luck...
Buzz wrote:I have made DDS textures with specularity with PhotoShop and the DDS plugin. I did not know anything about different kinds of alpha channels and just put a b/w spec map there, and it works.
Bump maps do work, but only in combination with smaller textures (width<2k?) and not in combination with specular reflections...
PLN's lost wrote:Buzz wrote:I have made DDS textures with specularity with PhotoShop and the DDS plugin. I did not know anything about different kinds of alpha channels and just put a b/w spec map there, and it works.
Bump maps do work, but only in combination with smaller textures (width<2k?) and not in combination with specular reflections...
Very interesting....
Were can I get that DDS plugin ?
I think your wrong for the rest :
Look at the related links of the Celestia site.
The first one where there is Fridger's Earth Pictures :
"The earth texture with combined bumpmapping and specular reflection has 8192 x 8192 resolution and as 4:1 packed DXT3 file (including an 8 bit alpha channel) is 44.7 MB long."
I don't understand a single word of these but have a look to his pictures...
There's bump mapping, specularity, and huge resolution.
So he did it....
Again : Congratulation Fridger. It's wonderfull. :D
PLN
Poor Little Newbie
Would a MacOS9 or OSX with photoshop6 work better? If not I have Mandrake8.2 aswell with TheGimp on that (its alot better in linux then windows I can tell you that much)...Rassilon wrote:Ok on the subject of alpha 0 heres a past post which contains that info and why it doesnt show up in windows for that matter...Also unless there is a plugin...Photoshop does not support alpha channels with PNG files...It will load them as a transparency channel only...Also I think this may be contributed by windows unability to see alpha 0...But it seems that there is no way to alpha out the black even to make transparency maps of the clouds...GIMP seems to be the only solution...Now as far as the DDS plugin...That I will have to give a whirl again...as I am now using 98SE again instead of XP :)
Heres the historic link: http://www.shatters.net/forum/viewtopic.php?t=455&highlight=alpha
btw, if there are any of you photoshoppers out there who want to contribute to this forum...feel free...as I wish to learn as much as possible ;)
...Select inverse and fill with ocean color...You can also use a whole texture as a surface and fill in the selected areas with the oceans...This is faster...
