Finally it seems to not come from the empty geode. The origin of the problem seems to be the uniform initialization during the building of the program which call a glUseProgram.
If your scene never display the node that contains the shader and if there is no other shader on the scene, this "glUseProgram" is the only one that is called during your simulation. So, this shader is applied on all the scene.
I fix this bug by switching off the shader (by calling glUseProgram(0) ) during the compilation of a state which does not contain the shader.
"
From Robert Osfield, refactored the FrameBufferObejcts::_drawBuffers set up so that its done
within the setAttachment method to avoid potential threading/execution order issues.
CullVisitor/SceneView:
*Feature: This version supports multiple clearnodes in the graph, one per renderstage.
Text:
*Feature: Performance Enhancement when calling SetBackdropColor
Material:
*Fix: OpenGL calls are now made according to the OpenGL Standard
"
enhanced version of PolytopeIntersector.
New features of PolytopeIntersector :
* Dimension mask: The user may specify the dimensions of the
primitives to be tested. Checking polytope-triangle and
polytope-quad intersections is rather slow so this can
be turned off.
* Reference plane: The resulting intersections are sorted
by the distance to this plane.
New memebers of PolytopeIntersector::Intersection :
* distance: Distance of localIntersectionPoint to the reference plane
* maxDistance: Maximum distance of all intersectionPoints to the
reference plane.
* intersectionPoints: The points intersecting the planes of the polytope
or points completely inside the polytope.
* localIntersectionPoint: arithmetic mean of all intersection points
* primitiveIndex: Index of the primitive that intersected
I added some more output to the example osgkeyboardmouse."
stereo format to work. It's a good thing I tested these on a TV
before submitting them since I did indeed have a bug. One thing I
did not test was to see how this would work in windowed mode. Does
the interlaced stereo code have support for 'absolute' positions?
For example a given pixel on the screen is always shown in a given
eye no matter where the graphics context is placed?
"
Created a new GraphicsThread subclass from OperationThread which allows the
GraphicsContext specific calls to be moved out of the base OperationThread class.
Updated the rest of the OSG to respect these changes.
