CrystalSpace

Public API Reference

iLODControl Struct Reference
[Mesh support]

The iLODControl interface represents an object that has controllable LOD features. More...

#include <iengine/lod.h>

Inheritance diagram for iLODControl:

List of all members.

Public Member Functions

virtual void GetLOD (float &m, float &a) const =0
 Get the current LOD function.
virtual void GetLOD (iSharedVariable *&varm, iSharedVariable *&vara) const =0
 Return the variables used by lod.
virtual int GetLODPolygonCount (float lod) const =0
 Get a rough estimate of the number of polygons for a given LOD value (between 0 and 1, similar to the value used by SetLOD()).
virtual void SetLOD (iSharedVariable *varm, iSharedVariable *vara)=0
 Set LOD using variables.
virtual void SetLOD (float m, float a)=0
 Set a parameters for a function to compute LOD for the given LOD control.

Detailed Description

The iLODControl interface represents an object that has controllable LOD features.

The LOD manager can work with this.

Definition at line 37 of file lod.h.


Member Function Documentation

virtual void iLODControl::GetLOD ( float &  m,
float &  a 
) const [pure virtual]

Get the current LOD function.

virtual void iLODControl::GetLOD ( iSharedVariable *&  varm,
iSharedVariable *&  vara 
) const [pure virtual]

Return the variables used by lod.

If lod was not set using variables then varm and vara will be set to 0.

virtual int iLODControl::GetLODPolygonCount ( float  lod  )  const [pure virtual]

Get a rough estimate of the number of polygons for a given LOD value (between 0 and 1, similar to the value used by SetLOD()).

Note that a mesh object that doesn't support LOD should always return the same number of polygons.

virtual void iLODControl::SetLOD ( iSharedVariable varm,
iSharedVariable vara 
) [pure virtual]

Set LOD using variables.

virtual void iLODControl::SetLOD ( float  m,
float  a 
) [pure virtual]

Set a parameters for a function to compute LOD for the given LOD control.

The function is as follows:

    float lod = m * distance + a;
 

The result of this function will be capped to the [0,1] range with 0 meaning worst quality possible (highest speed) and 1 highest quality.


The documentation for this struct was generated from the following file:

Generated for Crystal Space 1.4.1 by doxygen 1.7.1