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Public API Reference |
The iLODControl interface represents an object that has controllable Level Of Detail (LOD) features. More...
#include <iengine/lod.h>
Public Member Functions | |
| virtual void | GetLOD (float &m, float &a) const =0 |
| Get the current parameters of the LOD function. | |
| virtual void | GetLOD (iSharedVariable *&varm, iSharedVariable *&vara) const =0 |
| Return the parameters of the LOD function as shared variables. | |
| virtual void | GetLODFade (float &f) const =0 |
| Get the fading factor to be used while transitioning from one LOD to another. | |
| virtual void | GetLODFade (iSharedVariable *&varf) const =0 |
| Set the fading factor as a shared variable. | |
| 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 (float m, float a)=0 |
| Set the parameters of the function used to compute the LOD of the mesh depending on the distance to the camera. | |
| virtual void | SetLOD (iSharedVariable *varm, iSharedVariable *vara)=0 |
| Set the parameters of the LOD function using shared variables. | |
| virtual void | SetLODFade (float f)=0 |
| Set the fading factor to be used while transitioning from one LOD to another. | |
| virtual void | SetLODFade (iSharedVariable *varf)=0 |
| Set the fading factor as a shared variable. | |
The iLODControl interface represents an object that has controllable Level Of Detail (LOD) features.
The LOD manager can work with this.
| virtual void iLODControl::GetLOD | ( | float & | m, |
| float & | a | ||
| ) | const [pure virtual] |
Get the current parameters of the LOD function.
| virtual void iLODControl::GetLOD | ( | iSharedVariable *& | varm, |
| iSharedVariable *& | vara | ||
| ) | const [pure virtual] |
Return the parameters of the LOD function as shared variables.
If the parameters were not set using shared variables then varm and vara will be set to 0.
| virtual void iLODControl::GetLODFade | ( | float & | f | ) | const [pure virtual] |
Get the fading factor to be used while transitioning from one LOD to another.
| virtual void iLODControl::GetLODFade | ( | iSharedVariable *& | varf | ) | const [pure virtual] |
Set the fading factor as a shared variable.
If this factor was not previsouly set using shared variables then varf 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 | ( | float | m, |
| float | a | ||
| ) | [pure virtual] |
Set the parameters of the function used to compute the LOD of the mesh depending on the distance to the camera.
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.
| virtual void iLODControl::SetLOD | ( | iSharedVariable * | varm, |
| iSharedVariable * | vara | ||
| ) | [pure virtual] |
Set the parameters of the LOD function using shared variables.
| virtual void iLODControl::SetLODFade | ( | float | f | ) | [pure virtual] |
Set the fading factor to be used while transitioning from one LOD to another.
| virtual void iLODControl::SetLODFade | ( | iSharedVariable * | varf | ) | [pure virtual] |
Set the fading factor as a shared variable.