Hi,
I'm working on my own simple HUD/GUI system, and my idea was to use a seperate
orthogonal camera for that, which is attached to the root node, and is set to
post-render. It does to work so far, except that the quad that I'm drawing on
screen is about 4 times more dark than it should be. For example when I try to
make it white, it becomes color (63,63,63).
I'v set lighting to off, use no shader, tried setting fog off, I tried setting
blending off (but that should be turned on at some point anyway...), but
whatever I do it still is much darker than it should be.
Any idea what could be the cause of this?
This is how I create the camera:
Code:
osg::ref_ptr<osg::Camera> camera = new osg::Camera();
camera->setViewport(new osg::Viewport(0,0,width,height));
camera->setClearMask(GL_DEPTH_BUFFER_BIT);
//camera->setClearColor(osg::Vec4(0,0,0,0));
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera->setRenderOrder(osg::Camera::POST_RENDER,0);
camera->setProjectionMatrixAsOrtho2D(0,width,height,0);
camera->getOrCreateStateSet()->setMode(GL_BLEND,
osg::StateAttribute::OFF); //blend
camera->getOrCreateStateSet()->setMode(GL_LIGHTING,
osg::StateAttribute::OFF);
and this the quad:
Code:
rectGeom = new osg::Geometry();
rectGeom->setSupportsDisplayList(false);
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array;
osg::ref_ptr<osg::Vec2Array> texcoords = new osg::Vec2Array;
vertices->push_back(osg::Vec3d(0,0,0));
texcoords->push_back(osg::Vec2(0,0));
vertices->push_back(osg::Vec3d(width,0,0));
texcoords->push_back(osg::Vec2(width,0));
vertices->push_back(osg::Vec3d(width,height,0));
texcoords->push_back(osg::Vec2(width,height));
vertices->push_back(osg::Vec3d(0,height,0));
texcoords->push_back(osg::Vec2(0,height));
rectGeom->setVertexArray(vertices);
osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array;
colors->push_back(osg::Vec4(0,0,1,1));
colors->push_back(osg::Vec4(0,1,0,1));
colors->push_back(osg::Vec4(1,0,0,1));
colors->push_back(osg::Vec4(1,1,1,1));
rectGeom->setColorArray(colors);
rectGeom->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
//rectGeom->setColorBinding(osg::Geometry::BIND_OVERALL);
rectGeom->addPrimitiveSet(new
osg::DrawArrays(osg::PrimitiveSet::QUADS,0,vertices->size()));
Any ideas?
Thank you!
Cheers,
Bram
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=60300#60300
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
