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Trina Barry
Registered User
Join date: 3 Jul 2006
Posts: 4
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10-03-2006 15:58
Hello.
I have mastered the basic tga transparent file. But I am trying to save prim by making a wall texture that has a window in it. The problem is I can't seem to get a partial transperency to work. I want to have a nice design for the window with some drop shadow, and perhaps a yellow tint to the window area, but still be able to see through it. I am using PSP10 and wonder if it is possible to do, and if anyone could tell Me how.
Thanks in advance
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Chosen Few
Alpha Channel Slave
Join date: 16 Jan 2004
Posts: 7,496
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10-03-2006 16:28
From the Frequently Asked Questions section of the Transparency Guide, stickied at the top of this forum: From: someone How do I make part or all of an image translucent, as opposed to fully transparent?Areas of an image that are semi-transparent should be gray in the alpha channel. As described above, the darker the gray you use in the alpha channel, the more see-through the corresponding part of the image will be. The lighter the gray, the more opaque.
For example, a piece of frosted glass would require a very light gray in the alpha channel. Frosted glass is almost opaque, so the alpha should be almost white.
Something like a pair of nylon stockings would be in the medium gray range. Stockings are generally transparent enough that you can see the skin underneath them, but not so transparent that the stocking material itself isn't readily noticeable. They're about half way between transparent and opaque, so their gray value on the alpha channel would be about half way between black and white, medium gray.
Water would fall into the dark gray range. Water is very see-through, but not completely invisible. It's mostly transparent, so it's gray value on the alpha channel would be mostly black.
Just as a reminder, note that none of the grays in any of these examples affect the color of the image in any way. Alpha channels only govern transparency, not color. Simply select the areas on the canvas where your window panes are, and paint those same areas gray on your alpha mask. I'd recommend using a very light gray since you want the window to be tinted. The darker the gray, the more see-through it will be. Tinted windows tend to be fairly opaque.
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Eric Ortega
Registered User
Join date: 13 Sep 2006
Posts: 12
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10-08-2006 23:55
may be a bit late to help but i use psp aswell and found the easiest and simplest way to get the alpha channel right for transparency is
have the final image with all layers set at desired opacity.
click masks/new/from image.
in the screen select current image for source and source opacity.
click masks/save to alpha channel.
save it in the first alpha channel slot.
in layer pallette click masks tab and turn the mask off.
save your image as 24/32 bit and your set to go.
saves all the trouble of trying to line up your alpha channel and everything and fill it in by hand and you get the end result exactly as you have it in the working screen
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