Exporting PNG images
Posted: Thu Sep 22, 2016 6:30 pm
This is a response to a current posting on the Use-List:
"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?" [my bolding]
http://lessons.livecode.com/m/4071/l/68 ... ndow-shape
"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?" [my bolding]
http://lessons.livecode.com/m/4071/l/68 ... ndow-shape