UG Class Reference

A UniformGrid. More...

#include <accels/UG.h>

Inheritance diagram for UG:

[legend]List of all members.

Public Member Functions
	UG (Surface **sarray, int count)
bool	hit (Ray &r, HitRecord &rec, Context &context) const
bool	shadowHit (Ray &r, Context &context) const
BBox	boundingBox (double time0, double time1) const
bool	overlapsBox (const BBox &box) const

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Detailed Description

A UniformGrid.

The UniformGrid can be setup to use either bricked memory or "flat" memory through the UG_FLAT_SPACE define at the top of UG.cc. Different resolution heuristics can be chosen through the CLEARY_HEURISTIC define at the top of UG.cc as well.

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Member Function Documentation

bool UG::hit (  Ray &  r, HitRecord &  rec, Context &  context )  const [virtual]

Intersect given ray with the surface. Parameters: [in,out]  r  Ray to be intersected. [in,out]  rec  Struct for passed back shading geometry. [in,out]  context  Rendering context. Returns: Returns true if a new closest intersection has been found. Implements Surface.

bool UG::shadowHit (  Ray &  r, Context &  context )  const [virtual]

Intersect without visibility ordering or shading geometry. Parameters: [in,out]  r  Ray to be intersected. [in,out]  context  Rendering context. Returns: Returns true if a valid intersection is found. Reimplemented from Surface.

BBox UG::boundingBox (  double  time0, double  time1 )  const [inline, virtual]

Calculate the bounding box of the surface. Parameters: [in]  time0  Minimum of time interval being sampled. [in]  time1  Maximum of time interval being sampled. Returns: The bounding box of the object in the interval [time0, time1). Implements Surface.

bool UG::overlapsBox (  const BBox &  box  )  const [virtual]

Determine if this surface overlaps the input axis aligned box. Parameters: [in]  box  Bounding box to test against. Returns: False if the surface definitely does not overlap the box. Implements Surface.

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

• UG.h
• UG.cc

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