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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>
>
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