OpenCPN Beta Build 2.6.1215

[HappySeagull]

Yes.I restarted O.The cm93 loads at 7.5x .I turned off OpenGL.Everything WOULD be fine IF I didn't "+"in-I Did,and now I'm stuck,same place at 15x...

[HappySeagull]

..by the way,DoctorDave,I can still drag the chart (or charts)around and if I have kaps loaded in the bar,as I said,I could change to them.But no zoom-/+ ...it's just stuck with Overzoom showing.

[HappySeagull]

but the IBM has 2.5 and 2.6.1215PORTABLE and neither sticks in the same location-EVEN with openGL on-which the IBM is not so good at...
Funny thing-the IBM DID lock first with 2.6.1210 so I changed the ini.Then I went for a short cruise,but I" need" overzoom so I put it back on .Now it's ok...a ghost in my machines?

[HappySeagull]

I'm STUCKin Florida (TrueScale 400 100%)after a stop at Cape Hatteras where she wouldn't stick because she wouldn't zoom so far at that place-but Wait.I found a spot in the Chesapeake where her gumboots sunk in...100%.That's the clue,I guess.Something to do with the CM93 cells?allowing 100%?
Nope.take it back.Twas "15x" in SanDiego.

[HappySeagull]

Tried a crispy new install.everything uninstalled.Totally default settings.(but No internet connection,if that's important...)
First off,just load cm93 and I thought aha bug is gone!she zooms to infinity (0)and recovers.But back in San Diego or the Cheapeake.I'm stuck again...

soo,disabled overzoom in "ini file..."
But still
Stuck at 400 in SanDiego...

[HappySeagull]

..The 2.6.1125 Ubuntu build I'm using on Puppy Linux accessing the same cm93 chart folder...is fine (also on the Dell D420 on its own partition).It reaches all the same zoom levels but doesn't get stuck.

[bdbcat]

Happy....

OK, I found a point that gets stuck on Windows XP, no Opengl, cm93 only.

SanDiego

32 42 N
117 14 W

Same location works just fine on linux...

I'll be looking into this now.

Thanks
Dave

[nohal]

Dave...
Some OpenGL observations on my Win7 workstation:

• The chart info window still disappears right after it's rendered - first it's rendered, then the border disappears instantly (screenshot), then even the rest disappears after another split second.
• While panning the charts around, I get the behavior shown on the big screenshot at the edge between raster and CM93 coverage.
• I've also had artifacts at the bottom of the chart canvas as seen on the 200% screenshot, but can't reproduce it anymore.

1:59:47 PM: OpenGL-> Renderer String: Intel(R) HD Graphics
1:59:47 PM: OpenGL-> Framebuffer Objects unavailable
1:59:47 PM: OpenGL-> Using Stencil buffer clipping
1:59:47 PM: OpenGL-> Estimated Max Resident Textures: 98

Pavel

[HappySeagull]

I had the disappearing Chart Info too on this Dell420
http://www.cruisersforum.com/forums/...tml#post839418
No OpenGL then ,I said.But it isn't disappearing today,whicheverGL or not. though I can still get stuck)There are no thumbnails however.

But on a T42,OPCN ~1215-as-portable,everything is fine.

[SvLetitgo]

we used to be able to display the grib on Open the latest version doesn't seem to let me

Any know problem

Thanks

[bdbcat]

Pavel, and other Intel integrated Graphics OpenGL testers........

As an experiment.....
If you could, please hack chcanv.cpp at line 11810 to disable the stencil buffer. I think there is some problem with Intel's OpenGL driver set and stencils....

 
         g_b_useStencil = false;
//          if( !bad_stencil_code && stencil && (sb == 8))
//                g_b_useStencil = true;

build and retest under similar conditions....

Thanks
Dave

[Rik-lu]

I scrolled up to 80 degrees north (twice) with opengl switched on and had this result:




after that I just saw the blue map on black background.

had to reinstall opencpn.

win7-64 with intel hd graphic.

try to go up or down to the end of the chart..... at 80 degrees.



and later without opengl this result:

[bdbcat]

Rik...

Thanks for the report.

Should very very rarely need to reload OCPN.
Just delete the config file, and start normally.

Config file location is shown in Toolbox->Help .

Thanks
Dave

[nohal]

Originally Posted by bdbcat

If you could, please hack chcanv.cpp at line 11810 to disable the stencil buffer. I think there is some problem with Intel's OpenGL driver set and stencils....

Dave...
I would say the behavior is exactly the same with the stencil buffer disabled.
Ah. And if it's worth something, the behavior of the wrong rendering above 80N is "animated" - two bitmaps are switched periodically about once a second.

Pavel

[bdbcat]

Pavel...

Thanks for the test.

Leaving aside lat> 80.0 for a moment....This is a Mercator failure, and anyway, polar bears can't type...

And not trying to dodge the issue completely....

Is it possible there are updated drivers available for your Graphics system? I Google the problem, and get lots of hits regarding old Intel drivers, Vista/W7 compatibility, etc., etc.

But I cannot reproduce, since it is so hardware dependent.
Intel graphics works fine for me on (tiny)XP.

I hesitate to suggest that testing your system with some 3D action games may flush out some more OpenGL issues unrelated to OCPN. Just sayin'....

Stumped
Dave