FGFS-4.1/OpenSceneGraph
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Fixed a bug in the drive manipulator which was due to it using the local

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coords of the intersection point with the scene rather than the world
coord value for that point.  The code now uses
osgUtil::Hit::getWorldIntersectionPoint() method for getting the world coords.

Added support for getWorldIntersectionPoint to Viewer.cpp.

Put and #ifdef around the setting of the default display list visitor so
it nolonger sets in under IRIX. This is a world around to the IR graphics
imbending lighting info into display lists, if the display lists are
created before state is set up it produces lighting artifacts such as
flickering.  Remove the the default display list init visitor removes
these problems, display lists are then built on the fly and drawables
a drawn for the first time.
This commit is contained in:
Robert Osfield 2002-02-10 17:16:43 +00:00
parent a08fc47313
commit d9398af300
3 changed files with 23 additions and 17 deletions
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8
src/osgGLUT/Viewer.cpp
View File

@ -1053,14 +1053,14 @@ void Viewer::keyboard(unsigned char key, int x, int y)
hitr!=hitList.end();
++hitr)
{
osg::Vec3 ip = hitr->_intersectPoint;
osg::Vec3 in = hitr->_intersectNormal;
osg::Vec3 ip = hitr->getLocalIntersectPoint();
osg::Vec3 in = hitr->getLocalIntersectNormal();
osg::Geode* geode = hitr->_geode.get();
osg::notify(osg::NOTICE) << " Itersection Point ("<<ip<<") Normal ("<<in<<")"<< std::endl;
if (hitr->_matrix.valid())
{
osg::Vec3 ipEye = ip*(*(hitr->_matrix));
osg::Vec3 inEye = (in+ip)*(*(hitr->_matrix))-ipEye;
osg::Vec3 ipEye = hitr->getWorldIntersectPoint();
osg::Vec3 inEye = hitr->getWorldIntersectNormal();
inEye.normalize();
if (geode) osg::notify(osg::NOTICE) << "Geode '"<<geode->getName()<< std::endl;
osg::notify(osg::NOTICE) << " Eye Itersection Point ("<<ipEye<<") Normal ("<<inEye<<")"<< std::endl;

26
src/osgUtil/DriveManipulator.cpp
View File

@ -72,8 +72,8 @@ void DriveManipulator::home(const GUIEventAdapter& ea,GUIActionAdapter& us)
if (!hitList.empty())
{
// notify(INFO) << "Hit terrain ok"<< std::endl;
osg::Vec3 ip = hitList.front()._intersectPoint;
osg::Vec3 np = hitList.front()._intersectNormal;
osg::Vec3 ip = hitList.front().getWorldIntersectPoint();
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
osg::Vec3 uv;
if (np.z()>0.0f) uv = np;
@ -111,8 +111,8 @@ void DriveManipulator::home(const GUIEventAdapter& ea,GUIActionAdapter& us)
if (!hitList.empty())
{
// notify(INFO) << "Hit terrain ok"<< std::endl;
osg::Vec3 ip = hitList.front()._intersectPoint;
osg::Vec3 np = hitList.front()._intersectNormal;
osg::Vec3 ip = hitList.front().getWorldIntersectPoint();
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
osg::Vec3 uv;
if (np.z()>0.0f) uv = np;
@ -187,8 +187,8 @@ void DriveManipulator::init(const GUIEventAdapter& ea,GUIActionAdapter& us)
if (!hitList.empty())
{
// notify(INFO) << "Hit terrain ok"<< std::endl;
osg::Vec3 ip = hitList.front()._intersectPoint;
osg::Vec3 np = hitList.front()._intersectNormal;
osg::Vec3 ip = hitList.front().getWorldIntersectPoint();
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
osg::Vec3 uv;
if (np.z()>0.0f) uv = np;
@ -226,8 +226,8 @@ void DriveManipulator::init(const GUIEventAdapter& ea,GUIActionAdapter& us)
if (!hitList.empty())
{
// notify(INFO) << "Hit terrain ok"<< std::endl;
osg::Vec3 ip = hitList.front()._intersectPoint;
osg::Vec3 np = hitList.front()._intersectNormal;
osg::Vec3 ip = hitList.front().getWorldIntersectPoint();
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
osg::Vec3 uv;
if (np.z()>0.0f) uv = np;
@ -464,7 +464,7 @@ bool DriveManipulator::calcMovement()
if (!hitList.empty())
{
// notify(INFO) << "Hit obstruction"<< std::endl;
osg::Vec3 ip = hitList.front()._intersectPoint;
osg::Vec3 ip = hitList.front().getWorldIntersectPoint();
distanceToMove = (ip-ep).length()-_buffer;
_velocity = 0.0f;
}
@ -489,8 +489,8 @@ bool DriveManipulator::calcMovement()
if (!hitList.empty())
{
// notify(INFO) << "Hit terrain ok"<< std::endl;
osg::Vec3 ip = hitList.front()._intersectPoint;
osg::Vec3 np = hitList.front()._intersectNormal;
osg::Vec3 ip = hitList.front().getWorldIntersectPoint();
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
if (uv*np>0.0f) uv = np;
else uv = -np;
@ -528,8 +528,8 @@ bool DriveManipulator::calcMovement()
{
notify(INFO) << "Hit terrain on decent ok"<< std::endl;
osg::Vec3 ip = hitList.front()._intersectPoint;
osg::Vec3 np = hitList.front()._intersectNormal;
osg::Vec3 ip = hitList.front().getWorldIntersectPoint();
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
if (uv*np>0.0f) uv = np;
else uv = -np;

6
src/osgUtil/SceneView.cpp
View File

@ -61,9 +61,15 @@ void SceneView::setDefaults()
_renderStage = new RenderStage;
#ifndef __sgi
// sgi's IR graphics has a problem with lighting and display lists, as it seems to store
// lighting state with the display list, and the display list visitor doesn't currently apply
// state before creating display lists. So will disable the init visitor default, this won't
// affect functionality since the display lists will be created as and when needed.
DisplayListVisitor* dlv = new DisplayListVisitor();
dlv->setState(_state.get());
_initVisitor = dlv;
#endif
_appVisitor = new AppVisitor;