81f553aaee
but getting there.
o First cut of osgcluster demo. Very simple beginings. Alas
I only one PC here so I can't test it in its current guise.
o New support for NodeCallbacks, via AppCallback attached to
osg::Node's, and a default osgUtil::AppVisitor which calls them on
each frame.
o Support for traversal masks in osg::NodeVisitor, osg::Node
which allows nodes to be switched on or off via a bit mask.
o Suppport for traversal number (frame number) and reference time
into osg::NodeVisitor to handle syncronization of app and cull
traversals. This also assist clustering as traversal number
master to slaves.
64 lines
1.5 KiB
Plaintext
64 lines
1.5 KiB
Plaintext
#ifndef OSG_VIEWPORT
|
|
#define OSG_VIEWPORT 1
|
|
|
|
#include <osg/StateAttribute>
|
|
#include <osg/StateSet>
|
|
#include <osg/Types>
|
|
|
|
namespace osg {
|
|
|
|
/** Encapsulte OpenGL glViewport.
|
|
*/
|
|
class SG_EXPORT Viewport : public StateAttribute
|
|
{
|
|
public :
|
|
|
|
|
|
Viewport();
|
|
virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const Viewport*>(obj)!=0L; }
|
|
virtual Object* clone() const { return new Viewport(); }
|
|
virtual const char* className() const { return "Viewport"; }
|
|
|
|
virtual const Type getType() const { return VIEWPORT; }
|
|
|
|
inline void setViewport(const int x,const int y,const int width,const int height)
|
|
{
|
|
_x = x;
|
|
_y = y;
|
|
_width = width;
|
|
_height = height;
|
|
}
|
|
|
|
void getViewport(int& x,int& y,int& width,int& height)
|
|
{
|
|
x = _x;
|
|
y = _y;
|
|
width = _width;
|
|
height = _height;
|
|
}
|
|
|
|
inline const int x() const { return _x; }
|
|
inline const int y() const { return _y; }
|
|
inline const int width() const { return _width; }
|
|
inline const int height() const { return _height; }
|
|
|
|
/** return the aspcetRatio of the viewport, which is equal to width/height.*/
|
|
inline const float aspectRatio() const { return (float)_width/(float)_height; }
|
|
|
|
virtual void apply(State& state) const;
|
|
|
|
protected:
|
|
|
|
virtual ~Viewport();
|
|
|
|
int _x;
|
|
int _y;
|
|
int _width;
|
|
int _height;
|
|
|
|
};
|
|
|
|
};
|
|
|
|
#endif
|