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MagicSetEditor2/doc/function/set_alpha.txt
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twanvl 9fe5148292 Argument to set_alpha is 'input', not 'image'
git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@748 0fc631ac-6414-0410-93d0-97cfa31319b6
2007-09-23 00:55:11 +00:00

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Function: set_alpha
--Usage--
> set_alpha(input: image, alpha: transparency value)
Make an image more transparent.
The transprarency is multiplied by @alpha@.
If @alpha@ is 1 the image stays the same, if @alpha@ is 0 the image becomes completely transprent.
--Parameters--
! Parameter Type Description
| @input@ [[type:image]] Image to make transparent.
| @alpha@ [[type:double]] Transparency factor.
--Examples--
> set_alpha("image1.png", alpha: 0.5) == [[Image]]
>>> set_mask(<img src="image1.png" alt='"image1.png"' style="border:1px solid black;vertical-align:middle;margin:1px;" />, alpha: 0.5) == <img src="image_set_alpha.png" alt='"image_set_alpha.png"' style="border:1px solid black;vertical-align:middle;margin:1px;" />
--See also--
| [[fun:set_mask]] Set the transparancy mask of an image.