---

LOD Class Reference

Computes whether a level-of-detail should be rendered or not based on distance from the rendering camera. More...

#include <LOD.h>

List of all members.

Public Member Functions
	LOD ()
	LOD (const LOD &copy)
	~LOD ()
void	xform (const LMatrix4f &mat)
	Transforms the LOD specification by the indicated matrix.
int	compute_child (const LPoint3f &cam_pos, const LPoint3f &center) const
	Computes the distance between two points and returns the index for the child of the LOD by testing against the corresponding list of switching distances.
void	write_datagram (Datagram &destination) const
	Writes the contents of the LOD out to the datagram, presumably in preparation to writing to a Bam file.
void	read_datagram (DatagramIterator &source)
	Reads the contents of the LOD from the datagram, presumably in response to reading a Bam file.
void	output (ostream &out) const
void	write (ostream &out, int indent_level=0) const
Static Public Member Functions
void	set_stress_factor (float stress_factor)
	Sets the factor that globally scales all LOD's.
float	get_stress_factor ()
	Returns the factor that globally scales all LOD's.
Public Attributes
LPoint3f	_center
LODSwitchVector	_switch_vector
Static Private Attributes
float	_stress_factor = lod_stress_factor

---

Detailed Description

Computes whether a level-of-detail should be rendered or not based on distance from the rendering camera.

Definition at line 101 of file LOD.h.

---

Constructor & Destructor Documentation

LOD::LOD (  void   )

Definition at line 45 of file LOD.cxx.

LOD::LOD (  const LOD &  copy  )

Definition at line 57 of file LOD.cxx.

LOD::~LOD (  void   )

Definition at line 71 of file LOD.cxx. References _center, _switch_vector, and y.

---

Member Function Documentation

int LOD::compute_child (  const LPoint3f &  cam_pos, const LPoint3f &  center )  const

Computes the distance between two points and returns the index for the child of the LOD by testing against the corresponding list of switching distances. Definition at line 112 of file LOD.cxx. References _switch_vector, and minimum_LOD_number.

float LOD::get_stress_factor (   )  [static]

Returns the factor that globally scales all LOD's. See get_stress_factor(). Definition at line 266 of file LOD.cxx.

void LOD::output (  ostream &  out  )  const

Definition at line 198 of file LOD.cxx. References indent().

void LOD::read_datagram (  DatagramIterator &  source  )

Reads the contents of the LOD from the datagram, presumably in response to reading a Bam file. Definition at line 177 of file LOD.cxx. References _switch_vector. Referenced by LODNode::CData::write_datagram().

void LOD::set_stress_factor (  float  stress_factor  )  [static]

Sets the factor that globally scales all LOD's. This factor is applied to the square of the LOD distance, so the larger the number, the lower the detail that is presented. The normal value is 1.0. Definition at line 251 of file LOD.cxx.

void LOD::write (  ostream &  out, int  indent_level = 0 )  const

Definition at line 221 of file LOD.cxx. References _stress_factor.

void LOD::write_datagram (  Datagram &  destination  )  const

Writes the contents of the LOD out to the datagram, presumably in preparation to writing to a Bam file. Definition at line 153 of file LOD.cxx. References _switch_vector. Referenced by LODNode::CData::make_copy().

void LOD::xform (  const LMatrix4f &  mat  )

Transforms the LOD specification by the indicated matrix. Definition at line 85 of file LOD.cxx. References _stress_factor, _switch_vector, dot(), and select_LOD_number.

---

Member Data Documentation

LPoint3f LOD::_center

Definition at line 123 of file LOD.h. Referenced by ~LOD().

float LOD::_stress_factor = lod_stress_factor [static, private]

Definition at line 35 of file LOD.cxx. Referenced by write(), and xform().

LODSwitchVector LOD::_switch_vector

Definition at line 124 of file LOD.h. Referenced by compute_child(), read_datagram(), write_datagram(), xform(), and ~LOD().

---

The documentation for this class was generated from the following files:

• panda/src/gobj/LOD.h
• panda/src/gobj/LOD.cxx

---