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:

[legend]List of all members.

Public Member Functions
virtual void	GetLOD (iSharedVariable *&varm, iSharedVariable *&vara) const =0
	Return the variables used by lod.
virtual void	GetLOD (float &m, float &a) const =0
	Get the current LOD function.
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.

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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.

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Member Function Documentation

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

Get the current LOD function.

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.

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

• iengine/lod.h

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