Bug 345918

Summary: Brush icon is display in a strange aliased purple colour, different to Linux
Product: [Applications] krita Reporter: JayH <meowsayscat>
Component: OpenGL CanvasAssignee: Krita Bugs <krita-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: dimula73, halla
Priority: NOR    
Version First Reported In: 2.9.1   
Target Milestone: ---   
Platform: Other   
OS: Microsoft Windows   
URL: https://www.dropbox.com/s/2ml536cswdzpvwn/krita%20sampl%20brush%20problem.jpg?dl=0
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description JayH 2015-04-06 13:24:19 UTC 
The look of the brush under the cursor in Windows 7/8 appears to display incorrectly compared to Linux. It has a purple colour and is aliased. Please see the image provided:

https://www.dropbox.com/s/2ml536cswdzpvwn/krita%20sampl%20brush%20problem.jpg?dl=0

Reproducible: Always

Steps to Reproduce:
1. Use the brush/cursor and move it around
2.
3.

Actual Results:  
Looks poor

Expected Results:  
As far as I can remember it should be black, or grey.
Comment 1 Halla Rempt 2015-04-08 09:11:37 UTC 
That happens if opengl is disabled, or if we cannot use shaders in opengl. Could you check your display settings?
Comment 2 JayH 2015-04-08 10:06:51 UTC 
Yeah, by default I have OpenGL switched on, very laggy without, even though I have high spec system, Nvida Geforce 560ti, etc.

Without OpenGL on, it's the same.

Additionally when you move the cursor off the canvas and to the grey area, the brush colour changes to Green.
Comment 3 Halla Rempt 2015-04-08 10:20:30 UTC 
The change in color when leaving the image is normal.

What are your exact opengl settings? Is it like:

OpenGL enabled
High Quality Filtering
Use Texture Buffer

?
Comment 4 JayH 2015-04-08 11:11:11 UTC 
Yep, those exactly:

OpenGL enabled,
High Quality Filtering,
Use Texture Buffer.
Comment 5 Dmitry Kazakov 2015-06-15 09:23:11 UTC 
It might be some driver/Qt rendering bug :(

Probably, you could try updating NVidia drivers?
Comment 6 Halla Rempt 2016-06-16 09:34:29 UTC 
Yes, different drivers render the cursor in a different way, I'm afraid.

*** This bug has been marked as a duplicate of bug 363124 ***