FGFS-4.1/OpenSceneGraph
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

From David Fries, "I added code to also check the local up vector, but

Browse Source 
only if one of the rotation modes is selected, because autoscale isn't
affected by the camera rotations. "
This commit is contained in:
Robert Osfield
2004-08-17 07:58:32 +00:00
parent ffc5dfb83b
commit ca61c11134
2 changed files with 11 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/osg/AutoTransform.cpp
View File

@@ -113,6 +113,7 @@ void AutoTransform::accept(NodeVisitor& nv)
}
osg::Vec3 eyePoint = cs->getEyeLocal();
osg::Vec3 localUp = cs->getUpLocal();
osg::Vec3 position = getPosition();
const osg::Matrix& projection = cs->getProjectionMatrix();
@@ -125,6 +126,13 @@ void AutoTransform::accept(NodeVisitor& nv)
{
doUpdate = true;
}
osg::Vec3 dupv = _previousLocalUp-localUp;
// rotating the camera only affects ROTATE_TO_*
if (_autoRotateMode &&
dupv.length2()>getAutoUpdateEyeMovementTolerance())
{
doUpdate = true;
}
else if (width!=_previousWidth || height!=_previousHeight)
{
doUpdate = true;
@@ -159,13 +167,14 @@ void AutoTransform::accept(NodeVisitor& nv)
{
osg::Vec3 PosToEye = _position - eyePoint;
osg::Matrix lookto = osg::Matrix::lookAt(
osg::Vec3(0,0,0), PosToEye, cs->getUpLocal());
osg::Vec3(0,0,0), PosToEye, localUp);
Quat q;
q.set(osg::Matrix::inverse(lookto));
setRotation(q);
}
_previousEyePoint = eyePoint;
_previousLocalUp = localUp;
_previousWidth = width;
_previousHeight = height;
_previousProjection = projection;