Hi Jason,

I've already tried deleting the cache folders, unsuccessfully.

And how can I retrieve the version of my current osgEarth lib ?? :-) I
cannot find that in the sources, and I just don't remember which version I
downloaded :-)


And by the way, this as nothing to do with this thread yet, I have another
question for you: are you aware of a mayor problem which would happen if I
try to apply a shader on the osgEarth model and compute the terrain
elevation in the shader ? (I could pass the elevation texture as an
additional ImageLayer I guess ?  And if I add a few uniforms for each
terrain tile, this should not be too complex, is it ? )

Manu.

2009/4/29 Jason Beverage <[email protected]>

> Hi Manu,
>
> Are you using a cache for your .earth files?  If so, try deleting your disk
> cache and see if that helps.
>
> Also, what version of osgEarth are you using 1.0 or 1.1?  1.1 added support
> for mixing mercator and geodetic sources, which can sometimes result in
> non-power-of-two textures being used.  I wonder if perhaps there is an issue
> with your card and NPOT.
>
> Thanks,
>
> Jason
>
>
> On Wed, Apr 29, 2009 at 4:49 AM, Emmanuel Roche 
> <[email protected]>wrote:
>
>> Here are a few screen captures...
>>
>> Note the half visible groenland on the right side on picture 2 (with part
>> of africa on the right :-) ).
>> Or the low level Europe map on the left on picture 1.
>>
>> The position of the camera is somewhere next to munich in Germany !
>>
>> If I don't move the camera the textures eventually change but they are
>> replaced by other incorrect textures :-(
>>
>> So if you have any idea what I could try here this could be very helpful.
>>
>> Manu.
>>
>>
>>
>>
>>
>> 2009/4/29 Emmanuel Roche <[email protected]>
>>
>> Hi Jason,
>>>
>>> thanks for your answer. Actually, I just downloaded 2.8.1 rc3, built  it
>>> and tested my software with those binaries: it solved to problem !!... to
>>> some extends... :-(
>>>
>>> Actually, i think i'm now facing another ATI specific issue: I can start
>>> my app, retrieve image and elevation tiles and built my earth model...
>>> except that after some time (and this is also true if I use an simple
>>> example like "osgviewer yahoo_aerial.earth") it seems that my ATI just start
>>> mixing all the loaded textures!
>>>
>>> And in fact it seems to be a quite advanced feature as the mixing is
>>> progressive !!! (ie. We have a nice fading effect when you move slowing !!)
>>>
>>> My guess is, it could be that the graphic card memory is filled with
>>> textures, and then the ATI driver start using "old" texture objects
>>> depending on your distance to your model expecting to create a nice fading
>>> effect (assuming what we have here are mipmaped textures ?) (except that
>>> osgEarth keeps updating all the textures any way, so "old" textures for a
>>> given area are actually replaced by other textures for other areas). Could
>>> this make sense ? (or maybe I'm just saying silly things I'm really not an
>>> expert when it comes to the low level details like that :-) ).
>>>
>>> I'm joining a couple of screen capture in a following mail: maybe someone
>>> already faced this before.
>>>
>>> Manu.
>>>
>>>
>>> 2009/4/28 Jason Beverage <[email protected]>
>>>
>>> Hi Emmanuel,
>>>>
>>>> Glad to hear osgEarth is working out for you:)
>>>>
>>>> Try disabling VBO's by setting the OSG_GL_EXTENSION_DISABLE environment
>>>> variable to GL_ARB_vertex_buffer_object.
>>>>
>>>> This is really a temporary solution, once 2.8.1 is out the door, you can
>>>> probably just upgrade and it should work fine.
>>>>
>>>> Thanks!
>>>>
>>>> Jason
>>>>
>>>> On Tue, Apr 28, 2009 at 6:12 AM, Emmanuel Roche <
>>>> [email protected]> wrote:
>>>>
>>>>> Hi everyone !
>>>>>
>>>>> I've been testing osgEarth for a few days now: it works perfectly on my
>>>>> nvidia cards.
>>>>>
>>>>> But when trying the same application with an ATI cards, the app just
>>>>> shutdowns on some cards, or crashes (with the error mentioned on the
>>>>> osgEarth forum here: http://n2.nabble.com/Ati-error-td2603275.html )
>>>>>
>>>>> I've read that the rc3 for OSG 2.8.1 comes with a fix item : "fixes to
>>>>> display lists/vbo creation that prevent crash under ATI drivers". My
>>>>> question is : do you know if this is related to the problem I'm 
>>>>> experiencing
>>>>> currently and has someone already tested osgEarth on a previously crashing
>>>>> ATI cards with that version of OSG ?
>>>>>
>>>>> best regards,
>>>>> Manu.
>>>>>
>>>>>
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>>>>>
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>>>>>
>>>>>
>>>>
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