What is the bug or the crash?
When I try to render a PostGIS raster the Transparency NoData setting is ignored.
Recording.2025-09-12.140738.mp4
Steps to reproduce the issue
Using a postgres database with postgis & postgis_raster extentions installed, load the following raster into postgres:
raster_example.tif
raster2pgsql -s 4326 -t 100x100 -q -c -F -I -C -M -Y "C:\GIS\Data\raster_example.tif" test.raster_example | psql -U postgres -d postgis_35_sample -h localhost -p 5432
Check the Transparency NoData setting and then try applying different rendering options.
Versions
QGIS version 3.44.2-Solothurn QGIS code revision f30453dede3 Libraries Qt version 5.15.13 Python version 3.12.11 GDAL version 3.11.3 — Eganville PROJ version 9.6.2 EPSG Registry database version v12.013 (2025-05-26) GEOS version 3.13.1-CAPI-1.19.2 SQLite version 3.50.4 PDAL version 2.9.0 PostgreSQL client version 17.3 SpatiaLite version 5.1.0 QWT version 6.3.0 QScintilla2 version 2.14.1 OS version Windows 11 Version 2009 Active Python plugins db_manager 0.1.20 grassprovider 2.12.99 MetaSearch 0.3.6 processing 2.12.99
PostgreSQL 16.8
Supported QGIS version
New profile
Additional context
No response
What is the bug or the crash?
When I try to render a PostGIS raster the Transparency NoData setting is ignored.
Recording.2025-09-12.140738.mp4
Steps to reproduce the issue
Using a postgres database with postgis & postgis_raster extentions installed, load the following raster into postgres:
raster_example.tif
raster2pgsql -s 4326 -t 100x100 -q -c -F -I -C -M -Y "C:\GIS\Data\raster_example.tif" test.raster_example | psql -U postgres -d postgis_35_sample -h localhost -p 5432Check the Transparency NoData setting and then try applying different rendering options.
Versions
PostgreSQL 16.8
PostGIS 3.5
Supported QGIS version
New profile
Additional context
No response