Hi Robert,
Hows about using a cull callback that caches the compute near/far
values before traversing the subgaph then restores the value
afterwards, it'd only take a couple of lines of code.
Unless I'm reading the headers wrong, there is no setter for the
computed near and far values? Only getters?
inline value_type getCalculatedNearPlane() const {
return _computed_znear; }
inline value_type getCalculatedFarPlane() const {
return _computed_zfar; }
I don't see anything that sets _computed_znear and _computed_zfar except
for methods that do actual calculations, like updateCalculatedNearFar(...) .
Is there some other way of doing what you're suggesting that I'm missing?
Otherwise, I guess I could cache and reset the ComputeNearFarMode like this:
class DoNotIncludeInNearFarComputationCallback
: public osg::NodeCallback
{
public:
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
osgUtil::CullVisitor *cv =
dynamic_cast< osgUtil::CullVisitor*>( nv );
// Default value
osg::CullSettings::ComputeNearFarMode oldMode =
osg::CullSettings::COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES;
if( cv )
{
oldMode = cv->getComputeNearFarMode();
cv->setComputeNearFarMode(
osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
}
traverse(node, nv);
if( cv )
{
cv->setComputeNearFarMode(oldMode);
}
}
};
Does that look like something that could work? (it doesn't seem to at
first glance, but maybe I'm doing something wrong)
Thanks,
J-S
--
______________________________________________________
Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com
http://www.cm-labs.com/
http://whitestar02.webhop.org/
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