I noticed you never apply the stateset referring to the light to any
node.
Here's a suggestion:
<after creating the light node>
group->addChild(lightSource);
// grab a pointer to the group's stateset
osg::StateSet* statelightON_OVRD = group->getOrCreateStateSet();
statelightON_OVRD->setAttribute(light, osg::StateAttribute::ON);
This way the light is enabled for the group.
Mihai
ps. also noticed you set the scene data to only the loaded model:
viewer.setSceneData (loadedModel.get());
instead:
viewer.setSceneData (group.get());
[EMAIL PROTECTED] wrote:
Hello!!
Its my first email to the community!
I have been to the website and I foudn the codes examples.
I am trying to adda simple light or spot light to my scene graf!!
However I am not very skilled in coding, and I have an unclean code...
I dont know where its my mistake or how to adapt the lamp to my code!
Basically I copied:
I attached my code in join file so you can have a look if required!/
I believe the problem is there:
// create the light
osg::StateSet* statelightON_OVRD = new osg::StateSet();
osg::LightSource* lightSource = new osg::LightSource;
osg::Light* light = lightSource->getLight();
light->setLightNum(0);
light->setPosition(osg::Vec4(0.0f,0.0f,0.0f,1.0f)); // directional light from above
light->setAmbient(osg::Vec4(0.8f,0.8f,0.8f,1.0f));
light->setDiffuse(osg::Vec4(0.2f,0.2f,0.2f,1.0f));
light->setSpecular(osg::Vec4(0.2f,0.2f,0.2f,1.0f));
light->setSpotExponent(50.0);
light->setDirection(osg::Vec3(1,1,-1));
statelightON_OVRD->setAttribute(light, osg::StateAttribute::ON);
group->addChild(lightSource);
// mtTwo->addChild(loadedModel);
mtTwo->setStateSet(stateTwoFogON_OVRD);
loadedModel->setStateSet(stateTwoFogON_OVRD);
// mtTwo->setStateSet(statelightON_OVRD);
but Maybve its somewhere else!!!
Cheers!
Jean
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