Ah, good idea! That way I won't even need to hack it in; thanks!
> Date: Thu, 9 May 2013 10:20:42 +0100
> From: dom...@dominodesigns.info
> To: bf-committers@blender.org
> Subject: Re: [Bf-committers] Adding an alpha channel though Python's
> image.save()
>
> I create a temp image to modify the alpha channel on. Something like
> this for adding an opaque alpha channel.
>
> img = bpy.data.images.new("Temp",
> image.size[0],
> image.size[1],
> alpha=True)
> pixels = list(image.pixels)
> pixels[3::4] = [1.0 for i in range(len(pixels)/4)]
> img.pixels = pixels
> # set img.filepath_raw & img.file_format before save
> img.save()
> bpy.data.images.remove(img)
>
> On 05/09/2013 03:18 AM, patrick boelens wrote:
> > Hi Campbell,
> >
> > Thanks for your reply. I already managed to use ImageMagick to add an alpha
> > channel as a work-around, but will try your solution on a future batch,
> > thanks!
> >
> > -Patrick
> >
> >> Date: Thu, 9 May 2013 11:10:26 +1000
> >> From: ideasma...@gmail.com
> >> To: bf-committers@blender.org
> >> Subject: Re: [Bf-committers] Adding an alpha channel though Python's
> >> image.save()
> >>
> >> This is a limit in the API, and saving at different bit-depths should
> >> be possible,
> >> for a quick workaround you could set scene render settings and use
> >> Image.save_render method (which is intended for render-engine
> >> integration but I think it would work in your case).
> >>
> >> On Thu, May 9, 2013 at 6:06 AM, patrick boelens <p_boel...@msn.com> wrote:
> >>> Hi everyone,
> >>>
> >>> I've run into a bit of a problem here. I want to use Blender for some
> >>> batch image-processing but found a bug in saving. If the image loaded in
> >>> does not have an alpha channel, calling image.save() on it will not add
> >>> one, even if it does show up correctly in the UV/Image Editor. Saving the
> >>> image manually from the Editor it works, but that kind of defeats the
> >>> purpose of the batch processing. ;)
> >>>
> >>> Image.save seems to call IMB_saveiff(), while the menu entry seems to
> >>> call IMAGE_OT_save(). It's a bit too deep in for me to figure out though,
> >>> any help on getting this to work would be very much appreciated.
> >>>
> >>> Thanks!
> >>> -Patrick
> >>>
> >>> _______________________________________________
> >>> Bf-committers mailing list
> >>> Bf-committers@blender.org
> >>> http://lists.blender.org/mailman/listinfo/bf-committers
> >>
> >>
> >> --
> >> - Campbell
> >> _______________________________________________
> >> Bf-committers mailing list
> >> Bf-committers@blender.org
> >> http://lists.blender.org/mailman/listinfo/bf-committers
> >
> > _______________________________________________
> > Bf-committers mailing list
> > Bf-committers@blender.org
> > http://lists.blender.org/mailman/listinfo/bf-committers
>
> _______________________________________________
> Bf-committers mailing list
> Bf-committers@blender.org
> http://lists.blender.org/mailman/listinfo/bf-committers
_______________________________________________
Bf-committers mailing list
Bf-committers@blender.org
http://lists.blender.org/mailman/listinfo/bf-committers
