class LightCache

Public Types

• enum interpolationtype {EXACT, NEAREST, TRILINEAR_BEST, TRILINEAR}

Public Methods

•  LightCache (const Scene* s)
• void  setType (interpolationtype type, int size)
• LightList*  lookup (const Vector3& location, CLR& err, DBL precision)

Public Members

• interpolationtype itype

Private Types

• class MapEntry
• class Hash

Private Methods

•  LightCache (const LightCache&)
• LightCache&  operator= (const LightCache&)
• LightList*  sample (const Vector3& p, CLR& err)

Private Members

• static const int sondsize
• const Scene* scene
• Hash map

Detailed Description

Light Cache for Media calculation

Type of interpolation: EXACT: no interpolation NEAREST: nearest point aligned on grid TRILINEAR_BEST: trilinear interpolation but do not take additional samples TRILINEAR: full trilinear interpolation with sampling of all necessary samples

[private]

[private]

Set cache interpolation type and cache size.

Looks up a point given by location and returns the list of lights there. Lookup is done according to the cache's interpolation type.

Parameters:

location	lookup point
err	returns approx. maximum error in lookup
precision	space tolerance for lookup

[private]

MapEntry holds one element of the cache.

[private]

Holds the data in a hash data structure.

[private]

[private]

[private]

[private]

• Author: Micha Riser
• Generated: micha@laptop on Thu Oct 24 20:25:24 2002, using kdoc 2.0a53.