Matt Caron wrote:
I found a solution for this task using a HUD:
http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials/HudsAndText
Although I do still have an issue. I am using the Cessna.osg model in the HUD
but when I do
Code:
myPlaneTrans->setStateSet(hudStateSet);
hudStateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
many of the triangles in the Cessna model are not rendered, or are rendered
black. Unfortunately if I don't use that setMode() method, the Cessna
sometimes appears behind other objects - so it seems I really need
GL_DEPTH_TEST off, but I don't know why the Cessna mesh is being rendered
incorrectly.
The HUD tutorial probably assumes you don't have true 3D objects on your
HUD. To properly render anything 3D, you'll need the depth test on.
One possible solution would be to clear the depth buffer (but not the
color buffer) before drawing your HUD objects, but you'll have to make
sure that your HUD objects are always drawn after the regular scene.
--"J"
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