70 lines
1.9 KiB
Plaintext
70 lines
1.9 KiB
Plaintext
//C++ header - Open Scene Graph - Copyright (C) 1998-2001 Robert Osfield
|
|
//Distributed under the terms of the GNU Library General Public License (LGPL)
|
|
//as published by the Free Software Foundation.
|
|
|
|
#ifndef OSG_CULLFACE
|
|
#define OSG_CULLFACE 1
|
|
|
|
#include <osg/GL>
|
|
#include <osg/StateAttribute>
|
|
#include <osg/StateSet>
|
|
|
|
namespace osg {
|
|
|
|
/** Class to globally enable/disable OpenGL's polygon culling mode=.
|
|
*/
|
|
class SG_EXPORT CullFace : public StateAttribute
|
|
{
|
|
public :
|
|
|
|
CullFace();
|
|
|
|
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
|
|
CullFace(const CullFace& cf,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
|
|
StateAttribute(cf,copyop),
|
|
_mode(cf._mode) {}
|
|
|
|
META_StateAttribute(CullFace, CULLFACE);
|
|
|
|
/** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
|
|
virtual int compare(const StateAttribute& sa) const
|
|
{
|
|
// check the types are equal and then create the rhs variable
|
|
// used by the COMPARE_StateAttribute_Paramter macro's below.
|
|
COMPARE_StateAttribute_Types(CullFace,sa)
|
|
|
|
// compare each paramter in turn against the rhs.
|
|
COMPARE_StateAttribute_Parameter(_mode)
|
|
|
|
return 0; // passed all the above comparison macro's, must be equal.
|
|
}
|
|
|
|
virtual void setStateSetModes(StateSet& ds,const GLModeValue value) const
|
|
{
|
|
ds.setMode(GL_CULL_FACE,value);
|
|
}
|
|
|
|
enum Mode {
|
|
FRONT = GL_FRONT,
|
|
BACK = GL_BACK,
|
|
FRONT_AND_BACK = GL_FRONT_AND_BACK
|
|
};
|
|
|
|
inline void setMode(const Mode mode) { _mode = mode; }
|
|
|
|
inline const Mode getMode() const { return _mode; }
|
|
|
|
virtual void apply(State& state) const;
|
|
|
|
protected:
|
|
|
|
virtual ~CullFace();
|
|
|
|
Mode _mode;
|
|
|
|
};
|
|
|
|
};
|
|
|
|
#endif
|