Display degradation on the October DEV

[pasca...@gmail.com]

 Hello,

The display quality of 3.6 DEV October 2021 is very degraded compared to version 3.6 DEV August 2021, see photos below.

I haven't touched any settings on the computer or Windows 10.

Thank you.

3.6 DEV october 2021

 

3.6 DEV august 2021

[Mark Liversedge]

Please try this and report back

https://groups.google.com/g/golden-cheetah-users/c/2gDUnb8IVeI/m/pPfSiCVpAQAJ

[Hwa Runner]

I'm experiencing the same problem on Win10 with the GC 3.6 October version, as reported some days ago. On my Win10 system I have 2 Graphics cards, an CPU integrated one and a NVIDIA.

I tested with the one or the other turned off for GC, but the problem stays the same for me.

Even with installing the GC 3.6 DEV version from October 15, and using the '--no-angle' option, the situation stays the same in my case.

[pasca...@gmail.com]

 With the "--no-angle" argument the only improvement is the "W'balance" curve of the "Power and W'balance" graph.

The "Power" curve has no improvement.

The "Intervals Average Power" chart is not improved

With or without the "--no-angle" argument, if I don't show the left sidebar, the writing of the "Powers" tile becomes very good.

[marcen]

Looks like "Fast Graphicsis" it's enabled in the user chart.

When it is on it looks a bit more unsightly.

[Mark Liversedge]

On Sunday, 17 October 2021 at 10:38:42 UTC+1 Hwa Runner wrote:

Even with installing the GC 3.6 DEV version from October 15, and using the '--no-angle' option, the situation stays the same in my case.

If that is the case, GC is not the problem here.

Mark

[Mark Liversedge]

On Sunday, 17 October 2021 at 12:27:14 UTC+1 pasca...@gmail.com wrote:

With or without the "--no-angle" argument, if I don't show the left sidebar, the writing of the "Powers" tile becomes very good.

What resolution is your display set to?

[Mark Liversedge]

On Sunday, 17 October 2021 at 13:12:20 UTC+1 marcen wrote:

Looks like "Fast Graphicsis" it's enabled in the user chart.

When it is on it looks a bit more unsightly.

Is that with or without --no-angle.

The reason I ask is the rendering of "fast graphics" is performed via opengl.

If they are unsightly regardless of --no-angle then there is very little we can do.

Mark

[marcen]

Orange Line is "fast graphics "on
Red line is "fast graphics" off

If GC is started with --no-angle, the orange line is not so nice and the line width is set.
If GC is started without --no-angle, the orange line is not nice and the line width is not set.

[Mark Liversedge]

What line style do you have set for the orange line ....

[Pascal Arnot]

1920 x 1080

[marcen]

Line style is solid.

[Mark Liversedge]

On Sunday, 17 October 2021 at 15:25:45 UTC+1 marcen wrote:

Line style is solid.

In which case I really don't have an answer as GPU rendering is obviously an issue on your computer, so I would avoid fast graphics.

I added the option to allow control of the curve rendering as the QT docs highlight there are issues.

Thanks

Mark

[marcen]

Thanks for the help.
Maybe I can find something in the graphics settings.

[Gerrie Delport]

I have noticed the same with the latest October build, this chart used to have nice crisp lines using fast graphics now it looks like this and if I turn fast graphics off the chart disappear. 

On the other hand I have this chart:  The trend (white) has to use fast graphics for it to show but it does not look as crisp as the others that don't use fast graphics. 

[Gerrie Delport]

Interesting if I select to fill the curve the lines get nice and crisp again. 

[Mark Liversedge]

Hi

Fast graphics means rendering with OpenGL, the QT docs explain that there are downsides to this, if you have rendering issues then don't use fast graphics.

https://doc.qt.io/qt-5/qabstractseries.html#useOpenGL-prop

Mark

[Gerrie Delport]

The thing is Mark, that when we turn fast graphics off the chart does not plot. 

The only reason I bring this up is it used to work in the previous build, so something might have changed, on purpose or inadvertently. 

[Mark Liversedge]

Check the line thickness, scaling and transparency settings on the curve/plot.

Mark

[Gerrie Delport]

This is the settings for the Target linear plot it only plot if I turn fast graphics on. But it does not look great. 

This is the Blue line settings, the same as the Target plot but with this plot the fast graphics Off show a nice think line. 

[Gerrie Delport]

Thanks MARK

It was me!!!!
Looking at the plot settings side by side I see the opacity is 1 and 100. Changing both to 100 fixed the issue. 

If I did not make these plots I would not have seen this. 

[Mark Liversedge]

No issues

I've pushed an update to set the defaults for new curves to have 100% opacity and a 2px line width.

The 1% and 0px defaults were in error and often users would not spot that.

Mark

[marcen]

I found the setting on the graphics card so that GC can be started without --no-angle.
If one also has two graphics card and the dedicated graphics card is an Nvidia, under Windows 10.

Right click on the desktop and then go to Nvidia control panel.
Under "program settings" add GC.
In "2. The preferred graphics processor for this program" select Nvidia high performance processor.
In the settings, set OpenGL rendering GPU to Nvidia.

Save and start GC without --no-angle and test.

[Mark Liversedge]

On Sunday, 19 December 2021 at 16:08:15 UTC marcen wrote:

I found the setting on the graphics card so that GC can be started without --no-angle.
If one also has two graphics card and the dedicated graphics card is an Nvidia, under Windows 10.

Right click on the desktop and then go to Nvidia control panel.
Under "program settings" add GC.
In "2. The preferred graphics processor for this program" select Nvidia high performance processor.
In the settings, set OpenGL rendering GPU to Nvidia.

Save and start GC without --no-angle and test.

https://github.com/GoldenCheetah/GoldenCheetah/wiki/Graphics-are-slow-on-my-laptop

Let me know if this wiki entry needs updating?

Mark

[marcen]

With the Windows setting GC also works without --no-angle when high performance NVIDIA GPU selectet.

I would add "high performance NVIDIA/AMD GPU" because it is clearer which one to select.

"and follow each step to select the high performance NVIDIA/AMD GPU."