Try commenting out the zero color mask on the phantom globe to see if it "clips"
in the same way as your lines. If the phantom globe doesn't appear to clip, then
try setting the depth test to GL_ALWAYS on the lines (as I advised previously)
to see if that makes them appear.
-Paul
David Glenn wrote:
Well, I Do have two cameras. See, this is a planning view and I'm trying to
replicate an old Performer trick that I learned. One camera is for the terrain
and another camera for the object elements that has it clear mask set to
GL_DEPTH_BUFFER_BIT - based on the HUD example.
Sort of like layers in photoshop!
I did this as a trick to avoid having the lines or anything else be covered behind terrain - so the objects always seem appear on top of the terrain - like a map. I figured that if could do it in Performer, it might work on Open Scene Graph. Behind the grid I also have a phantom version of the terrain. I used the globe from the osglogo example and colored it black, then got the state set and set the color mask useing:
Code:
osg::ColorMask* cm = new osg::ColorMask(false,false,false,false);
state->setAttributeAndModes(cm,osg::StateAttribute::ON);
then set render bin details for that object:
Code:
state->setRenderBinDetails(-10000,"RenderBin",osg::StateSet::USE_RENDERBIN_DETAILS);
This makes a phantom globe for the grid to hide behind.
Well, you see the reason that I thought I might have to post some of the code so you might have a better understanding of whats going on.
This may not matter, but this is all being done using QT window (using the osgQTveiwer example as a gide) and it's running under Linux.
...
D Glenn
------------------------
D Glenn (a.k.a David Glenn) - Join the Navy and See the World ... from your
Desk!
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=30948#30948
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--
-Paul Martz Skew Matrix Software
http://www.skew-matrix.com/
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