Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi Robert, I think I'll be able to reproduce the artifact I told you days ago (the models that "flickers") in a much smaller source code, but this time it has nothing to do (I guess) with RenderBin nor a ".osg" model since I did the same with a simple box (ShapeDrawable). I just need a little more time, and an answer to this stupid question: what happens if I add a LightSource with just "rootNode->addChild(new osg::LightSource);" when another light source already exists? Mays this cause lighting to flicker??? That sounds odd. Thanks. -- Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ > I'm already working with a .osg, and it seems that an external parameter > causes the problem since both "working" and "not working" models look the > same in osgViewer. I'll write a small OSG app that shows the problem and post > everything. But it may take a while since I don't have much time... I'll post > when it's ready. > 'till next time... > > Sukender > PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ > > >>> Thanks for the openGL explanation. >>> Well, I already checked for the normals (I didn't know for the >>> Material/ColorArray, but I knew for this!)... And they're ok (Lighting is >>> on). >> >> Are you able to export an .osg or .ive file that contains your >> complete but not working model? Others could then load it to see if >> it's a platform specific issue. >> >> Robert. >> ___ >> osg-users mailing list >> osg-users@lists.openscenegraph.org >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Need explanation about a strange behaviour with RenderBin
I'm already working with a .osg, and it seems that an external parameter causes the problem since both "working" and "not working" models look the same in osgViewer. I'll write a small OSG app that shows the problem and post everything. But it may take a while since I don't have much time... I'll post when it's ready. 'till next time... Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ >> Thanks for the openGL explanation. >> Well, I already checked for the normals (I didn't know for the >> Material/ColorArray, but I knew for this!)... And they're ok (Lighting is >> on). > > Are you able to export an .osg or .ive file that contains your > complete but not working model? Others could then load it to see if > it's a platform specific issue. > > Robert. > ___ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Need explanation about a strange behaviour with RenderBin
On Mon, Nov 10, 2008 at 10:06 AM, Sukender <[EMAIL PROTECTED]> wrote: > Thanks for the openGL explanation. > Well, I already checked for the normals (I didn't know for the > Material/ColorArray, but I knew for this!)... And they're ok (Lighting is on). Are you able to export an .osg or .ive file that contains your complete but not working model? Others could then load it to see if it's a platform specific issue. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi Robert,
Thanks for the openGL explanation.
Well, I already checked for the normals (I didn't know for the
Material/ColorArray, but I knew for this!)... And they're ok (Lighting is on).
Sukender
PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
Le Mon, 10 Nov 2008 10:29:14 +0100, Robert Osfield <[EMAIL PROTECTED]> a écrit:
> HI Sekender,
>
> The colour array is required when you have the glColorMaterial
> enabled, this is driven by osg::Material::setColorMode(), or when
> lighting is disabled. Have a read of OpenGL docs of the affect of
> materials, color material and colour arrays on geometries and OpenGL
> lighting.
>
> As this has not fixed the issue then have a look to see if lighting is
> on, but no normals are attached, again you need normals if you are
> using lighting.
>
> Robert.
>
> On Sun, Nov 9, 2008 at 9:12 PM, Sukender <[EMAIL PROTECTED]> wrote:
>> Hi Robert and Jean-Sébastien,
>>
>> Thanks for your ideas. My model is an .osg so I know there is a normal array
>> and no texturing, and I manually replaced OPAQUE/DEFAULT.
>>
>> You both said that I need a colour array with at least one overall colour.
>> Well, can you tell me why I need a colour array? I don't know why "the color
>> array from some other drawables will bleed into any other drawable which
>> does not have a color array". Maybe an openGL consideration I'm not aware
>> of...
>> Anyway, there is a Material in my object (as posted before), but no colour
>> array. So I added:
>> ColorArray 1 {
>>1.0 1.0 1.0 1.0
>> }
>> ColorBinding BIND_OVERALL
>> in each Geometry in the .osg, just as you both suggested, but it has no
>> effect.
>>
>> That's *really really* strange... As maybe noone has enough time for such a
>> problem, I think I'm going to drop it and create a workaround by tweaking
>> the Blender exporter. If I'm wrong (= someone has enough time), just tell me
>> so that I send the code.
>>
>> Thank you very much for your help.
>>
>> --
>> Sukender
>> PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
>>
>>
>> Le Fri, 07 Nov 2008 10:51:19 +0100, Robert Osfield <[EMAIL PROTECTED]> a
>> écrit:
>>
>>> On Fri, Nov 7, 2008 at 12:14 AM, Sukender <[EMAIL PROTECTED]> wrote:
Hi again Robert,
I confirm that the strange behavior still exist while compiling against
the rev 9119 (branch osgWidget-dev).
>>>
>>> I don't have any further suggests beyond my earlier suggestion that
>>> some vertex data such as normals, texcoord or colour arrays aren't
>>> assigned to geometries that they should be. Write you model out to
>>> .osg and have a look through them. If you have lighting on then
>>> you'll need a normal array, if you are use default osg::Material
>>> you'll need at a colour array with at least one overall colour, if you
>>> are doing texturing then you'll need texture coords.
>>>
>>> Robert.
>>> ___
>>> osg-users mailing list
>>> osg-users@lists.openscenegraph.org
>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>
>> ___
>> osg-users mailing list
>> osg-users@lists.openscenegraph.org
>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>
> ___
> osg-users mailing list
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> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
HI Sekender,
The colour array is required when you have the glColorMaterial
enabled, this is driven by osg::Material::setColorMode(), or when
lighting is disabled. Have a read of OpenGL docs of the affect of
materials, color material and colour arrays on geometries and OpenGL
lighting.
As this has not fixed the issue then have a look to see if lighting is
on, but no normals are attached, again you need normals if you are
using lighting.
Robert.
On Sun, Nov 9, 2008 at 9:12 PM, Sukender <[EMAIL PROTECTED]> wrote:
> Hi Robert and Jean-Sébastien,
>
> Thanks for your ideas. My model is an .osg so I know there is a normal array
> and no texturing, and I manually replaced OPAQUE/DEFAULT.
>
> You both said that I need a colour array with at least one overall colour.
> Well, can you tell me why I need a colour array? I don't know why "the color
> array from some other drawables will bleed into any other drawable which does
> not have a color array". Maybe an openGL consideration I'm not aware of...
> Anyway, there is a Material in my object (as posted before), but no colour
> array. So I added:
> ColorArray 1 {
>1.0 1.0 1.0 1.0
> }
> ColorBinding BIND_OVERALL
> in each Geometry in the .osg, just as you both suggested, but it has no
> effect.
>
> That's *really really* strange... As maybe noone has enough time for such a
> problem, I think I'm going to drop it and create a workaround by tweaking the
> Blender exporter. If I'm wrong (= someone has enough time), just tell me so
> that I send the code.
>
> Thank you very much for your help.
>
> --
> Sukender
> PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
>
>
> Le Fri, 07 Nov 2008 10:51:19 +0100, Robert Osfield <[EMAIL PROTECTED]> a
> écrit:
>
>> On Fri, Nov 7, 2008 at 12:14 AM, Sukender <[EMAIL PROTECTED]> wrote:
>>> Hi again Robert,
>>>
>>> I confirm that the strange behavior still exist while compiling against the
>>> rev 9119 (branch osgWidget-dev).
>>
>> I don't have any further suggests beyond my earlier suggestion that
>> some vertex data such as normals, texcoord or colour arrays aren't
>> assigned to geometries that they should be. Write you model out to
>> .osg and have a look through them. If you have lighting on then
>> you'll need a normal array, if you are use default osg::Material
>> you'll need at a colour array with at least one overall colour, if you
>> are doing texturing then you'll need texture coords.
>>
>> Robert.
>> ___
>> osg-users mailing list
>> osg-users@lists.openscenegraph.org
>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
> ___
> osg-users mailing list
> osg-users@lists.openscenegraph.org
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi Robert and Jean-Sébastien,
Thanks for your ideas. My model is an .osg so I know there is a normal array
and no texturing, and I manually replaced OPAQUE/DEFAULT.
You both said that I need a colour array with at least one overall colour.
Well, can you tell me why I need a colour array? I don't know why "the color
array from some other drawables will bleed into any other drawable which does
not have a color array". Maybe an openGL consideration I'm not aware of...
Anyway, there is a Material in my object (as posted before), but no colour
array. So I added:
ColorArray 1 {
1.0 1.0 1.0 1.0
}
ColorBinding BIND_OVERALL
in each Geometry in the .osg, just as you both suggested, but it has no effect.
That's *really really* strange... As maybe noone has enough time for such a
problem, I think I'm going to drop it and create a workaround by tweaking the
Blender exporter. If I'm wrong (= someone has enough time), just tell me so
that I send the code.
Thank you very much for your help.
--
Sukender
PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
Le Fri, 07 Nov 2008 10:51:19 +0100, Robert Osfield <[EMAIL PROTECTED]> a écrit:
> On Fri, Nov 7, 2008 at 12:14 AM, Sukender <[EMAIL PROTECTED]> wrote:
>> Hi again Robert,
>>
>> I confirm that the strange behavior still exist while compiling against the
>> rev 9119 (branch osgWidget-dev).
>
> I don't have any further suggests beyond my earlier suggestion that
> some vertex data such as normals, texcoord or colour arrays aren't
> assigned to geometries that they should be. Write you model out to
> .osg and have a look through them. If you have lighting on then
> you'll need a normal array, if you are use default osg::Material
> you'll need at a colour array with at least one overall colour, if you
> are doing texturing then you'll need texture coords.
>
> Robert.
> ___
> osg-users mailing list
> osg-users@lists.openscenegraph.org
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi Sukender, However, the first problem still exists and *exists on others configs* (!): changing from "OPAQUE_BIN" to "DEFAULT_BIN" removes a strange behaviour. You mentioned earlier in the thread that your objects did not have a color array. This is exactly what would happen when that's the case, because the color array from some other drawables will bleed into any other drawable which does not have a color array. And the colors will change depending on what is culled in the current frame, which is why the color of your objects seem to change like that at seemingly random moments. So just give your objects a color array of size 1, white color, and BIND_OVERALL. Even if your objects use materials for their colors, they need a color array. Hope this helps, J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Need explanation about a strange behaviour with RenderBin
On Fri, Nov 7, 2008 at 12:14 AM, Sukender <[EMAIL PROTECTED]> wrote: > Hi again Robert, > > I confirm that the strange behavior still exist while compiling against the > rev 9119 (branch osgWidget-dev). I don't have any further suggests beyond my earlier suggestion that some vertex data such as normals, texcoord or colour arrays aren't assigned to geometries that they should be. Write you model out to .osg and have a look through them. If you have lighting on then you'll need a normal array, if you are use default osg::Material you'll need at a colour array with at least one overall colour, if you are doing texturing then you'll need texture coords. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi again Robert,
I confirm that the strange behavior still exist while compiling against the rev
9119 (branch osgWidget-dev).
Sukender
PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
Le Thu, 06 Nov 2008 17:28:53 +0100, Robert Osfield <[EMAIL PROTECTED]> a écrit:
> Hi Sukender,
>
> Intel drivers are known for being rather poor, so it may well just be
> driver bug, I would certainly check for updated drivers. Also get
> yourself a cheap Nvidia card an pop it in the machine, you may well
> get quite a different experience and will give you a sanity test.
>
> Robert.
>
> On Thu, Nov 6, 2008 at 4:24 PM, Sukender <[EMAIL PROTECTED]> wrote:
>> Hi again Robert,
>>
>> I don't have any custom OpenGL code.
>> Configuration : Core 2 Duo, integrated chipset (Intel 82945G), Windows XP 32
>> bits SP3.
>> Driver is the "factory default" one, and I never saw such effets in any
>> other app.
>> The first bug (strange lightning) has been seen on another configuration,
>> but not he last one yet (I will test ASAP and inform you).
>> I'm going to try linking against OSG 2.7.4 (or maybe the wxWidget branch as
>> I already compiled half of it), but I think that won't change anything.
>> The problem may not be render-bin related, but I still don't understand...
>> What a strange effect!
>> Thank you for taking time for this.
>>
>> --
>> Sukender
>> PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
>>
>>
>> Le Thu, 06 Nov 2008 16:35:17 +0100, Robert Osfield <[EMAIL PROTECTED]> a
>> écrit:
>>
>>> Hi Sukender,
>>>
>>> Strange artefacts indeed, but I still don't think they are render bin
>>> related.
>>>
>>> There looks to be an issue with state leakage, such as with my
>>> suggestion of missing vertex attributes, or perhaps now more likely
>>> given the screenshot a driver bug.
>>>
>>> What OS/hardware/drivers are you using? Try other machines if you
>>> have access to them.
>>>
>>> Do you have an custom OpenGL code that might be causing problems?
>>>
>>> Robert.
>>>
>>> On Thu, Nov 6, 2008 at 3:16 PM, Sukender <[EMAIL PROTECTED]> wrote:
Hi,
That becomes stranger and stranger: now that I display another exported
model, some of my objects have back face culling problems as the moment
the object is added to the scene graph. Moreover, I have a HeightField
which has inverted culling on HALF of it! I joined "before-after"
screenshots to this message.
If anyone has an idea of the problem, please tell me!
(I use OSG 2.7.1)
--
Sukender
PVLE - Lightweight cross-platform game engine -
http://pvle.sourceforge.net/
Le Thu, 06 Nov 2008 12:50:28 +0100, Sukender <[EMAIL PROTECTED]> a écrit:
> Robert,
>
> Thank you for your answer. I've checked what you pointed. But my exported
> model:
> - Has no coulour array (just a material)
> - Has 196 vertex and 196 normals (so probably no missing normals)
> - And has no transparency
>
> I really don't understand. Any idea?
>
> Note that I load the model using the cache
> (ReaderWriter::Options::CACHE_ALL) and that I duplicate it (in order to
> modify it without affecting the cached object) by using:
> myGroup = new osg::Group(*loadedCachedModel,
> osg::CopyOp::DEEP_COPY_OBJECTS | osg::CopyOp::DEEP_COPY_NODES);
> I also tried DEEP_COPY_AL but that has no effect. Anyway, I'm not sure it
> is related to my problem...
>
> I seen that on top of the geodes, there are MatrixTransforms with a
> stange "StateSet { 0xba1 ON }" line (Exactly the same in each
> MatrixTransform), but removing it didn't change anything.
>
>
> If you want, the geode data looks like:
> Geode {
> UniqueID "Corps_geode"
> DataVariance DYNAMIC
> name "Corps_geode"
> cullingActive TRUE
> num_drawables 1
> Geometry {
> StateSet {
> UniqueID Corps_stateset
> DataVariance STATIC
> rendering_hint OPAQUE_BIN
> GL_BLEND OFF
> Material {
> DataVariance STATIC
> ColorMode OFF
> diffuseColor 0.30011921 0.5 0.0 1.0
> specularColor 1.0 1.0 1.0 1
> emissionColor 0.111620302463 0.186033830047 0.0 1
> shininess 24.5960784314
> }
> }
> VertexArray 196 {...}
> NormalBinding PER_VERTEX
> NormalArray 196 {...}
> PrimitiveSets 2 {...}
> }
> }
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
There really doesn't appear to be enough info for us to help you. I suggest
starting with simple smaller models (such as a single triangle or small mesh
of triangles). If you are able to reproduce the issue with a smaller model
but still unable to determine the source of the problem, then post it here
so that someone can take a look at it.
-Paul
>
> Hi,
>
> That becomes stranger and stranger: now that I display
> another exported model, some of my objects have back face
> culling problems as the moment the object is added to the
> scene graph. Moreover, I have a HeightField which has
> inverted culling on HALF of it! I joined "before-after"
> screenshots to this message.
> If anyone has an idea of the problem, please tell me!
> (I use OSG 2.7.1)
>
> --
> Sukender
> PVLE - Lightweight cross-platform game engine -
> http://pvle.sourceforge.net/
>
>
> Le Thu, 06 Nov 2008 12:50:28 +0100, Sukender
> <[EMAIL PROTECTED]> a écrit:
>
> > Robert,
> >
> > Thank you for your answer. I've checked what you pointed.
> But my exported model:
> > - Has no coulour array (just a material)
> > - Has 196 vertex and 196 normals (so probably no missing normals)
> > - And has no transparency
> >
> > I really don't understand. Any idea?
> >
> > Note that I load the model using the cache
> (ReaderWriter::Options::CACHE_ALL) and that I duplicate it
> (in order to modify it without affecting the cached object) by using:
> > myGroup = new osg::Group(*loadedCachedModel,
> osg::CopyOp::DEEP_COPY_OBJECTS | osg::CopyOp::DEEP_COPY_NODES);
> > I also tried DEEP_COPY_AL but that has no effect. Anyway,
> I'm not sure it is related to my problem...
> >
> > I seen that on top of the geodes, there are
> MatrixTransforms with a stange "StateSet { 0xba1 ON }" line
> (Exactly the same in each MatrixTransform), but removing it
> didn't change anything.
> >
> >
> > If you want, the geode data looks like:
> > Geode {
> > UniqueID "Corps_geode"
> > DataVariance DYNAMIC
> > name "Corps_geode"
> > cullingActive TRUE
> > num_drawables 1
> > Geometry {
> > StateSet {
> > UniqueID Corps_stateset
> > DataVariance STATIC
> > rendering_hint OPAQUE_BIN
> > GL_BLEND OFF
> > Material {
> > DataVariance STATIC
> > ColorMode OFF
> > diffuseColor 0.30011921 0.5 0.0 1.0
> > specularColor 1.0 1.0 1.0 1
> > emissionColor 0.111620302463 0.186033830047 0.0 1
> > shininess 24.5960784314
> > }
> > }
> > VertexArray 196 {...}
> > NormalBinding PER_VERTEX
> > NormalArray 196 {...}
> > PrimitiveSets 2 {...}
> > }
> > }
>
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi Robert,
Algright. I'll ask someone to test on his config and I'll tell you if the
artifact remains or not.
See you soon...
--
Sukender
PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
Le Thu, 06 Nov 2008 17:28:53 +0100, Robert Osfield <[EMAIL PROTECTED]> a écrit:
> Hi Sukender,
>
> Intel drivers are known for being rather poor, so it may well just be
> driver bug, I would certainly check for updated drivers. Also get
> yourself a cheap Nvidia card an pop it in the machine, you may well
> get quite a different experience and will give you a sanity test.
>
> Robert.
>
> On Thu, Nov 6, 2008 at 4:24 PM, Sukender <[EMAIL PROTECTED]> wrote:
>> Hi again Robert,
>>
>> I don't have any custom OpenGL code.
>> Configuration : Core 2 Duo, integrated chipset (Intel 82945G), Windows XP 32
>> bits SP3.
>> Driver is the "factory default" one, and I never saw such effets in any
>> other app.
>> The first bug (strange lightning) has been seen on another configuration,
>> but not he last one yet (I will test ASAP and inform you).
>> I'm going to try linking against OSG 2.7.4 (or maybe the wxWidget branch as
>> I already compiled half of it), but I think that won't change anything.
>> The problem may not be render-bin related, but I still don't understand...
>> What a strange effect!
>> Thank you for taking time for this.
>>
>> --
>> Sukender
>> PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
>>
>>
>> Le Thu, 06 Nov 2008 16:35:17 +0100, Robert Osfield <[EMAIL PROTECTED]> a
>> écrit:
>>
>>> Hi Sukender,
>>>
>>> Strange artefacts indeed, but I still don't think they are render bin
>>> related.
>>>
>>> There looks to be an issue with state leakage, such as with my
>>> suggestion of missing vertex attributes, or perhaps now more likely
>>> given the screenshot a driver bug.
>>>
>>> What OS/hardware/drivers are you using? Try other machines if you
>>> have access to them.
>>>
>>> Do you have an custom OpenGL code that might be causing problems?
>>>
>>> Robert.
>>>
>>> On Thu, Nov 6, 2008 at 3:16 PM, Sukender <[EMAIL PROTECTED]> wrote:
Hi,
That becomes stranger and stranger: now that I display another exported
model, some of my objects have back face culling problems as the moment
the object is added to the scene graph. Moreover, I have a HeightField
which has inverted culling on HALF of it! I joined "before-after"
screenshots to this message.
If anyone has an idea of the problem, please tell me!
(I use OSG 2.7.1)
--
Sukender
PVLE - Lightweight cross-platform game engine -
http://pvle.sourceforge.net/
Le Thu, 06 Nov 2008 12:50:28 +0100, Sukender <[EMAIL PROTECTED]> a écrit:
> Robert,
>
> Thank you for your answer. I've checked what you pointed. But my exported
> model:
> - Has no coulour array (just a material)
> - Has 196 vertex and 196 normals (so probably no missing normals)
> - And has no transparency
>
> I really don't understand. Any idea?
>
> Note that I load the model using the cache
> (ReaderWriter::Options::CACHE_ALL) and that I duplicate it (in order to
> modify it without affecting the cached object) by using:
> myGroup = new osg::Group(*loadedCachedModel,
> osg::CopyOp::DEEP_COPY_OBJECTS | osg::CopyOp::DEEP_COPY_NODES);
> I also tried DEEP_COPY_AL but that has no effect. Anyway, I'm not sure it
> is related to my problem...
>
> I seen that on top of the geodes, there are MatrixTransforms with a
> stange "StateSet { 0xba1 ON }" line (Exactly the same in each
> MatrixTransform), but removing it didn't change anything.
>
>
> If you want, the geode data looks like:
> Geode {
> UniqueID "Corps_geode"
> DataVariance DYNAMIC
> name "Corps_geode"
> cullingActive TRUE
> num_drawables 1
> Geometry {
> StateSet {
> UniqueID Corps_stateset
> DataVariance STATIC
> rendering_hint OPAQUE_BIN
> GL_BLEND OFF
> Material {
> DataVariance STATIC
> ColorMode OFF
> diffuseColor 0.30011921 0.5 0.0 1.0
> specularColor 1.0 1.0 1.0 1
> emissionColor 0.111620302463 0.186033830047 0.0 1
> shininess 24.5960784314
> }
> }
> VertexArray 196 {...}
> NormalBinding PER_VERTEX
> NormalArray 196 {...}
> PrimitiveSets 2 {...}
> }
> }
>>
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi Sukender,
Intel drivers are known for being rather poor, so it may well just be
driver bug, I would certainly check for updated drivers. Also get
yourself a cheap Nvidia card an pop it in the machine, you may well
get quite a different experience and will give you a sanity test.
Robert.
On Thu, Nov 6, 2008 at 4:24 PM, Sukender <[EMAIL PROTECTED]> wrote:
> Hi again Robert,
>
> I don't have any custom OpenGL code.
> Configuration : Core 2 Duo, integrated chipset (Intel 82945G), Windows XP 32
> bits SP3.
> Driver is the "factory default" one, and I never saw such effets in any other
> app.
> The first bug (strange lightning) has been seen on another configuration, but
> not he last one yet (I will test ASAP and inform you).
> I'm going to try linking against OSG 2.7.4 (or maybe the wxWidget branch as I
> already compiled half of it), but I think that won't change anything.
> The problem may not be render-bin related, but I still don't understand...
> What a strange effect!
> Thank you for taking time for this.
>
> --
> Sukender
> PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
>
>
> Le Thu, 06 Nov 2008 16:35:17 +0100, Robert Osfield <[EMAIL PROTECTED]> a
> écrit:
>
>> Hi Sukender,
>>
>> Strange artefacts indeed, but I still don't think they are render bin
>> related.
>>
>> There looks to be an issue with state leakage, such as with my
>> suggestion of missing vertex attributes, or perhaps now more likely
>> given the screenshot a driver bug.
>>
>> What OS/hardware/drivers are you using? Try other machines if you
>> have access to them.
>>
>> Do you have an custom OpenGL code that might be causing problems?
>>
>> Robert.
>>
>> On Thu, Nov 6, 2008 at 3:16 PM, Sukender <[EMAIL PROTECTED]> wrote:
>>> Hi,
>>>
>>> That becomes stranger and stranger: now that I display another exported
>>> model, some of my objects have back face culling problems as the moment the
>>> object is added to the scene graph. Moreover, I have a HeightField which
>>> has inverted culling on HALF of it! I joined "before-after" screenshots to
>>> this message.
>>> If anyone has an idea of the problem, please tell me!
>>> (I use OSG 2.7.1)
>>>
>>> --
>>> Sukender
>>> PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
>>>
>>>
>>> Le Thu, 06 Nov 2008 12:50:28 +0100, Sukender <[EMAIL PROTECTED]> a écrit:
>>>
Robert,
Thank you for your answer. I've checked what you pointed. But my exported
model:
- Has no coulour array (just a material)
- Has 196 vertex and 196 normals (so probably no missing normals)
- And has no transparency
I really don't understand. Any idea?
Note that I load the model using the cache
(ReaderWriter::Options::CACHE_ALL) and that I duplicate it (in order to
modify it without affecting the cached object) by using:
myGroup = new osg::Group(*loadedCachedModel,
osg::CopyOp::DEEP_COPY_OBJECTS | osg::CopyOp::DEEP_COPY_NODES);
I also tried DEEP_COPY_AL but that has no effect. Anyway, I'm not sure it
is related to my problem...
I seen that on top of the geodes, there are MatrixTransforms with a stange
"StateSet { 0xba1 ON }" line (Exactly the same in each MatrixTransform),
but removing it didn't change anything.
If you want, the geode data looks like:
Geode {
UniqueID "Corps_geode"
DataVariance DYNAMIC
name "Corps_geode"
cullingActive TRUE
num_drawables 1
Geometry {
StateSet {
UniqueID Corps_stateset
DataVariance STATIC
rendering_hint OPAQUE_BIN
GL_BLEND OFF
Material {
DataVariance STATIC
ColorMode OFF
diffuseColor 0.30011921 0.5 0.0 1.0
specularColor 1.0 1.0 1.0 1
emissionColor 0.111620302463 0.186033830047 0.0 1
shininess 24.5960784314
}
}
VertexArray 196 {...}
NormalBinding PER_VERTEX
NormalArray 196 {...}
PrimitiveSets 2 {...}
}
}
>
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi again Robert,
I don't have any custom OpenGL code.
Configuration : Core 2 Duo, integrated chipset (Intel 82945G), Windows XP 32
bits SP3.
Driver is the "factory default" one, and I never saw such effets in any other
app.
The first bug (strange lightning) has been seen on another configuration, but
not he last one yet (I will test ASAP and inform you).
I'm going to try linking against OSG 2.7.4 (or maybe the wxWidget branch as I
already compiled half of it), but I think that won't change anything.
The problem may not be render-bin related, but I still don't understand... What
a strange effect!
Thank you for taking time for this.
--
Sukender
PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
Le Thu, 06 Nov 2008 16:35:17 +0100, Robert Osfield <[EMAIL PROTECTED]> a écrit:
> Hi Sukender,
>
> Strange artefacts indeed, but I still don't think they are render bin related.
>
> There looks to be an issue with state leakage, such as with my
> suggestion of missing vertex attributes, or perhaps now more likely
> given the screenshot a driver bug.
>
> What OS/hardware/drivers are you using? Try other machines if you
> have access to them.
>
> Do you have an custom OpenGL code that might be causing problems?
>
> Robert.
>
> On Thu, Nov 6, 2008 at 3:16 PM, Sukender <[EMAIL PROTECTED]> wrote:
>> Hi,
>>
>> That becomes stranger and stranger: now that I display another exported
>> model, some of my objects have back face culling problems as the moment the
>> object is added to the scene graph. Moreover, I have a HeightField which has
>> inverted culling on HALF of it! I joined "before-after" screenshots to this
>> message.
>> If anyone has an idea of the problem, please tell me!
>> (I use OSG 2.7.1)
>>
>> --
>> Sukender
>> PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
>>
>>
>> Le Thu, 06 Nov 2008 12:50:28 +0100, Sukender <[EMAIL PROTECTED]> a écrit:
>>
>>> Robert,
>>>
>>> Thank you for your answer. I've checked what you pointed. But my exported
>>> model:
>>> - Has no coulour array (just a material)
>>> - Has 196 vertex and 196 normals (so probably no missing normals)
>>> - And has no transparency
>>>
>>> I really don't understand. Any idea?
>>>
>>> Note that I load the model using the cache
>>> (ReaderWriter::Options::CACHE_ALL) and that I duplicate it (in order to
>>> modify it without affecting the cached object) by using:
>>> myGroup = new osg::Group(*loadedCachedModel,
>>> osg::CopyOp::DEEP_COPY_OBJECTS | osg::CopyOp::DEEP_COPY_NODES);
>>> I also tried DEEP_COPY_AL but that has no effect. Anyway, I'm not sure it
>>> is related to my problem...
>>>
>>> I seen that on top of the geodes, there are MatrixTransforms with a stange
>>> "StateSet { 0xba1 ON }" line (Exactly the same in each MatrixTransform),
>>> but removing it didn't change anything.
>>>
>>>
>>> If you want, the geode data looks like:
>>> Geode {
>>> UniqueID "Corps_geode"
>>> DataVariance DYNAMIC
>>> name "Corps_geode"
>>> cullingActive TRUE
>>> num_drawables 1
>>> Geometry {
>>> StateSet {
>>> UniqueID Corps_stateset
>>> DataVariance STATIC
>>> rendering_hint OPAQUE_BIN
>>> GL_BLEND OFF
>>> Material {
>>> DataVariance STATIC
>>> ColorMode OFF
>>> diffuseColor 0.30011921 0.5 0.0 1.0
>>> specularColor 1.0 1.0 1.0 1
>>> emissionColor 0.111620302463 0.186033830047 0.0 1
>>> shininess 24.5960784314
>>> }
>>> }
>>> VertexArray 196 {...}
>>> NormalBinding PER_VERTEX
>>> NormalArray 196 {...}
>>> PrimitiveSets 2 {...}
>>> }
>>> }
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi Sukender,
Strange artefacts indeed, but I still don't think they are render bin related.
There looks to be an issue with state leakage, such as with my
suggestion of missing vertex attributes, or perhaps now more likely
given the screenshot a driver bug.
What OS/hardware/drivers are you using? Try other machines if you
have access to them.
Do you have an custom OpenGL code that might be causing problems?
Robert.
On Thu, Nov 6, 2008 at 3:16 PM, Sukender <[EMAIL PROTECTED]> wrote:
> Hi,
>
> That becomes stranger and stranger: now that I display another exported
> model, some of my objects have back face culling problems as the moment the
> object is added to the scene graph. Moreover, I have a HeightField which has
> inverted culling on HALF of it! I joined "before-after" screenshots to this
> message.
> If anyone has an idea of the problem, please tell me!
> (I use OSG 2.7.1)
>
> --
> Sukender
> PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
>
>
> Le Thu, 06 Nov 2008 12:50:28 +0100, Sukender <[EMAIL PROTECTED]> a écrit:
>
>> Robert,
>>
>> Thank you for your answer. I've checked what you pointed. But my exported
>> model:
>> - Has no coulour array (just a material)
>> - Has 196 vertex and 196 normals (so probably no missing normals)
>> - And has no transparency
>>
>> I really don't understand. Any idea?
>>
>> Note that I load the model using the cache
>> (ReaderWriter::Options::CACHE_ALL) and that I duplicate it (in order to
>> modify it without affecting the cached object) by using:
>> myGroup = new osg::Group(*loadedCachedModel,
>> osg::CopyOp::DEEP_COPY_OBJECTS | osg::CopyOp::DEEP_COPY_NODES);
>> I also tried DEEP_COPY_AL but that has no effect. Anyway, I'm not sure it is
>> related to my problem...
>>
>> I seen that on top of the geodes, there are MatrixTransforms with a stange
>> "StateSet { 0xba1 ON }" line (Exactly the same in each MatrixTransform), but
>> removing it didn't change anything.
>>
>>
>> If you want, the geode data looks like:
>> Geode {
>> UniqueID "Corps_geode"
>> DataVariance DYNAMIC
>> name "Corps_geode"
>> cullingActive TRUE
>> num_drawables 1
>> Geometry {
>> StateSet {
>> UniqueID Corps_stateset
>> DataVariance STATIC
>> rendering_hint OPAQUE_BIN
>> GL_BLEND OFF
>> Material {
>> DataVariance STATIC
>> ColorMode OFF
>> diffuseColor 0.30011921 0.5 0.0 1.0
>> specularColor 1.0 1.0 1.0 1
>> emissionColor 0.111620302463 0.186033830047 0.0 1
>> shininess 24.5960784314
>> }
>> }
>> VertexArray 196 {...}
>> NormalBinding PER_VERTEX
>> NormalArray 196 {...}
>> PrimitiveSets 2 {...}
>> }
>> }
>
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>
>
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Robert,
Thank you for your answer. I've checked what you pointed. But my exported model:
- Has no coulour array (just a material)
- Has 196 vertex and 196 normals (so probably no missing normals)
- And has no transparency
I really don't understand. Any idea?
Note that I load the model using the cache (ReaderWriter::Options::CACHE_ALL)
and that I duplicate it (in order to modify it without affecting the cached
object) by using:
myGroup = new osg::Group(*loadedCachedModel, osg::CopyOp::DEEP_COPY_OBJECTS |
osg::CopyOp::DEEP_COPY_NODES);
I also tried DEEP_COPY_AL but that has no effect. Anyway, I'm not sure it is
related to my problem...
I seen that on top of the geodes, there are MatrixTransforms with a stange
"StateSet { 0xba1 ON }" line (Exactly the same in each MatrixTransform), but
removing it didn't change anything.
If you want, the geode data looks like:
Geode {
UniqueID "Corps_geode"
DataVariance DYNAMIC
name "Corps_geode"
cullingActive TRUE
num_drawables 1
Geometry {
StateSet {
UniqueID Corps_stateset
DataVariance STATIC
rendering_hint OPAQUE_BIN
GL_BLEND OFF
Material {
DataVariance STATIC
ColorMode OFF
diffuseColor 0.30011921 0.5 0.0 1.0
specularColor 1.0 1.0 1.0 1
emissionColor 0.111620302463 0.186033830047 0.0 1
shininess 24.5960784314
}
}
VertexArray 196 {...}
NormalBinding PER_VERTEX
NormalArray 196 {...}
PrimitiveSets 2 {...}
}
}
--
Sukender
Le Thu, 06 Nov 2008 10:26:49 +0100, Robert Osfield <[EMAIL PROTECTED]> a écrit:
> Hi Sukender,
>
> My guess is that the problem is not related to the bin management,
> rather missing vertex colour or vertex normals on some of the
> geometry. If it's not this then perhaps you have transparency issues.
>
> Robert.
>
> On Thu, Nov 6, 2008 at 12:34 AM, Sukender <[EMAIL PROTECTED]> wrote:
>> Hi,
>>
>> I found a strange behavior, and I would like someone to explain, if possible.
>> In an ".osg" model (exported from Blender) the "rendering_hint OPAQUE_BIN"
>> line in some StateSets causes my model to be lit in a funky way. It is
>> sometimes correctly lit, sometimes not (looks like diffuse got away). In my
>> app, I have:
>> - a pStateset->setRenderBinDetails(11,"RenderBin") used to render HUD
>> components,
>> - and a pStateset->setRenderBinDetails(-1, "RenderBin") elsewhere for my sky
>> sphere.
>>
>> But if I change "OPAQUE_BIN" to "DEFAULT_BIN", then my model is correctly
>> lit...
>> Can someone explains what happened?
>> Thanks.
>>
>> Sincerely,
>>
>> --
>> Sukender
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Re: [osg-users] Need explanation about a strange behaviour with RenderBin
Hi Sukender, My guess is that the problem is not related to the bin management, rather missing vertex colour or vertex normals on some of the geometry. If it's not this then perhaps you have transparency issues. Robert. On Thu, Nov 6, 2008 at 12:34 AM, Sukender <[EMAIL PROTECTED]> wrote: > Hi, > > I found a strange behavior, and I would like someone to explain, if possible. > In an ".osg" model (exported from Blender) the "rendering_hint OPAQUE_BIN" > line in some StateSets causes my model to be lit in a funky way. It is > sometimes correctly lit, sometimes not (looks like diffuse got away). In my > app, I have: > - a pStateset->setRenderBinDetails(11,"RenderBin") used to render HUD > components, > - and a pStateset->setRenderBinDetails(-1, "RenderBin") elsewhere for my sky > sphere. > > But if I change "OPAQUE_BIN" to "DEFAULT_BIN", then my model is correctly > lit... > Can someone explains what happened? > Thanks. > > Sincerely, > > -- > Sukender > ___ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Need explanation about a strange behaviour with RenderBin
Hi, I found a strange behavior, and I would like someone to explain, if possible. In an ".osg" model (exported from Blender) the "rendering_hint OPAQUE_BIN" line in some StateSets causes my model to be lit in a funky way. It is sometimes correctly lit, sometimes not (looks like diffuse got away). In my app, I have: - a pStateset->setRenderBinDetails(11,"RenderBin") used to render HUD components, - and a pStateset->setRenderBinDetails(-1, "RenderBin") elsewhere for my sky sphere. But if I change "OPAQUE_BIN" to "DEFAULT_BIN", then my model is correctly lit... Can someone explains what happened? Thanks. Sincerely, -- Sukender ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
