Export PNG with alpha channel/mask
Richmond
richmondmathewson at gmail.com
Thu Sep 22 13:31:17 EDT 2016
I don't quite understand why your transparent areas are exporting as Black:
http://forums.livecode.com/viewtopic.php?f=7&t=27984
Richmond.
On 22.09.2016 18:02, Ben Rubinstein wrote:
> I want to compose an image using a bunch of LC objects, then export a
> PNG, with an alpha channel containing a mask (ideally > 1 bit, but
> that part's not critical).
>
> The documentation for export snapshot is not very clear. I've tried
> things like exporting a transparent group containing some objects; the
> PNG was just filled with black where there were no objects.
>
> There is an option "with mask xx", but it appears that this is only
> for PBM format - and in any case I can't make it work.
>
> Is there any way to do this?
>
> TIA
>
> Ben
>
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