[MapServer-users] Mapserver>=8.0: Layer Composite Opacity

[GOGIS Dieter Zuberbühler]

Hi Jeff,

many thanks for this hint. -DWITH_PIXMAN=0 fixed it!

Best regards,

Dieter


On Wed, 2024-08-07 at 11:38 -0300, Jeff McKenna via MapServer-users
wrote:
> Hi Dieter,
> 
> It could be possible that your MapServer installation was compiled
> with 
> Pixman library support enabled in MapServer, which unfortunately
> causes 
> a known bug where opacity does not work (see 
> https://github.com/MapServer/MapServer/issues/5343 ).  I believe we 
> should completely remove Pixman support from MapServer in a future 
> release, as so many users hit this issue each year.
> 
> In other words, make sure that you set -DWITH_PIXMAN=0 when compiling
> MapServer from source.
> 
> PS. I actually used the small mapfile included in that ticket, for 
> testing now with today's MapServer 8.3-dev on MS4W 5, on Windows, and
> successfully generated a proper map image (with opacity) with
> map2img.
> 
> thanks,
> 
> -jeff
> 
> 
> 

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