Bug report #12300
Rendering issue with transparent WMS layers
Status: | Closed | ||
---|---|---|---|
Priority: | Severe/Regression | ||
Assignee: | - | ||
Category: | Web Services clients/WMS | ||
Affected QGIS version: | master | Regression?: | No |
Operating System: | Easy fix?: | No | |
Pull Request or Patch supplied: | No | Resolution: | |
Crashes QGIS or corrupts data: | No | Copied to github as #: | 20478 |
Description
When setting the transparancy of certain WMS layers the rendering goes wrong and colors are off. According to my limited testing, it happens only on WMS layers that already have transparency on their own, opaque layers render correctly after applying transparency.
Steps to reproduce:- Connect to this WMS service in QGis (tested on 2.9 master): https://www.dov.vlaanderen.be/geoserver/gw_varia/verzilting/wms?version=1.3.0&request=GetCapabilities
- Load the (only) layer 'verzilting'
- The colors are correct.
- Go to the layer properties, set transparency to a value != 0
- The layer is not transparent and the colors are all wrong.
Associated revisions
Fix transparency for WMS layers (fixes #12300)
Fix transparency for WMS layers (fixes #12300)
(cherry picked from commit dbfbc692838e768b13c970c7d777829883b4b841)
History
#1 Updated by Roel Huybrechts almost 10 years ago
Apparently something went wrong pasting the WMS link, the correct version is: https://www.dov.vlaanderen.be/geoserver/gw_varia/verzilting/wms?version=1.3.0&request=GetCapabilities
#2 Updated by Giovanni Manghi almost 10 years ago
- Category set to Web Services clients/WMS
#3 Updated by Giovanni Manghi almost 10 years ago
- Status changed from Open to Feedback
confirmed. This was an issue also in previous qgis releases?
#4 Updated by Roel Huybrechts almost 10 years ago
Yes, I can reproduce it in QGis 2.8 and 2.6, if needed I can test in previous versions as well.
#5 Updated by Paolo Cavallini almost 10 years ago
- Subject changed from Rendering issue with transparant WMS layers to Rendering issue with transparent WMS layers
#6 Updated by Giovanni Manghi almost 10 years ago
Roel Huybrechts wrote:
Yes, I can reproduce it in QGis 2.8 and 2.6, if needed I can test in previous versions as well.
I would appreciate that, thanks!
#7 Updated by johanvdw - almost 10 years ago
Giovanni Manghi wrote:
Roel Huybrechts wrote:
Yes, I can reproduce it in QGis 2.8 and 2.6, if needed I can test in previous versions as well.
I would appreciate that, thanks!
I can confirm the problem in QGis 2.4 (debian jessie, QGis provided by debian).
#8 Updated by Roel Huybrechts almost 10 years ago
- master: not transparent, wrong colors
- 2.8: not transparent, wrong colors
- 2.6: not transparent, wrong colors
- 2.4: not transparent, wrong colors
- 2.2: transparent, wrong colors
- 2.0: transparent, wrong colors
- 1.8: transparent, correct colors: ok!
#9 Updated by Giovanni Manghi almost 10 years ago
- Status changed from Feedback to Open
- Priority changed from Normal to Severe/Regression
- Target version set to Version 2.8.2
#10 Updated by Giovanni Manghi over 9 years ago
- Target version changed from Version 2.8.2 to Version 2.10
#11 Updated by Martin Dobias over 9 years ago
- Status changed from Open to Closed
Fixed in changeset dbfbc692838e768b13c970c7d777829883b4b841.