Hi Robert,
There is another strange thing about this.
If you run
osgviewer scene.osg
and you press the 's' key, you could see that the statistics are red.
So, the shader is applied on the statistics too.
Robert Osfield a écrit :
Hi Stephane,
When I run
osgviewer scene.osg
I get a red cow, which looks correct. I'm using the SVN version of
the OSG under 64bit Kubuntu 7.10 on a Quad core Intel chip with NVidia
drivers/7800GT.
Robert.
On Thu, May 22, 2008 at 7:29 AM, Stephane Lamoliatte
<[EMAIL PROTECTED]> wrote:
Hi Robert,
OpenSceneGraph have a strange behavior when I set a shader and an uniform
variable on the state set of a geode which have no drawable.
I write a very simple osg scene file to show you my problem (see the
attachment).
I have a group which have 2 children :
* a geode without any drawable;
* a proxy node which point to the "cow.osg" file.
When I set a simple shader with an uniform variable on the state set of the
geode, the shader is applied to the cow. (strange behavior)
When I remove the uniform variable (and hard code the value of the uniform
variable to the shader), the shader is not applied to the cow. (standard
behavior)
So, do you have any idea to correct this bug ?
Cheers,
--
Lamoliatte Stephane
R&D Engineer
R.S.A. Cosmos
Z.I. de la Vaure - B.P.40
42290 Sorbiers, France
Tél : +33 (0)4 77 53 30 48
Fax : +33 (0)4 77 53 38 61
Group {
name "aGroup"
Geode {
name "anEmptyGeode"
StateSet {
Uniform {
name "color"
type vec3 1 FloatArray 3
{
1 0 0
}
}
Program {
num_shaders 1
Shader {
type FRAGMENT
code {
"uniform vec3 color;"
"void main() {"
" gl_FragColor = vec4(color.rgb, 1.0);"
"}"
}
}
}
}
num_drawables 0
}
ProxyNode {
name "whatEverYouWant"
FileNameList {
cow.osg
}
}
}
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--
Lamoliatte Stephane
Ingenieur R&D
R.S.A. Cosmos
Z.I. de la Vaure - B.P.40
42290 Sorbiers, France
Tél : +33 (0)4 77 53 30 48
Fax : +33 (0)4 77 53 38 61
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