AlphaData from RGB
scott at tactilemedia.com
Fri Jul 30 03:13:40 EDT 2010
Recently, Chipp Walters wrote:
> BTW, do you know if you can set the alphaimage of a new image to an existing
> RGB image without having to do the math (which I already have).
Do you mean alphaData? If I understand what you're asking, it sounds like
you want to set the alphaData of one image to the imageData of another. The
only way I know how to do this via the math.
set alphaData of img 2 to tmImageToAlpha(imageData of img 1)
function tmImageToAlpha pData
put 2 into C
put numToChar(255 - charToNum(char C of pData)) after tAlpha
add 4 to C
Tactile Media, UX Design
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