Package eu.svjatoslav.sixth.e3d.renderer.octree.raytracer

Class Ray

java.lang.Object

eu.svjatoslav.sixth.e3d.renderer.octree.raytracer.Ray

public class Ray
extends Object

Represents a ray used for tracing through an OctreeVolume.

A ray is defined by an origin point and a direction vector. After tracing through the octree, the intersection results are stored in the hitPoint, hitCellSize, and hitCellX/hitCellY/hitCellZ fields, which are populated by the octree traversal algorithm.

See Also:

• RayTracer
• OctreeVolume.traceCell(int, int, int, int, int, Ray)

Field Summary

Fields

Modifier and Type	Field	Description
Point3D	direction	The direction vector of the ray.
int	hitCellSize	The size (side length) of the octree cell that was hit.
int	hitCellX	The x coordinate of the octree cell that was hit.
int	hitCellY	The y coordinate of the octree cell that was hit.
int	hitCellZ	The z coordinate of the octree cell that was hit.
Point3D	hitPoint	The point in world space where the ray intersected an octree cell.
Point3D	origin	The origin point of the ray (the starting position in world space).

Constructor Summary

Constructors

Constructor	Description
Ray(Point3D origin, Point3D direction)	Creates a new ray with the specified origin and direction.

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

origin

public Point3D origin

The origin point of the ray (the starting position in world space).

direction

public Point3D direction

The direction vector of the ray. Does not need to be normalized; the octree traversal handles arbitrary direction magnitudes.

hitPoint

public Point3D hitPoint

The point in world space where the ray intersected an octree cell. Set by the octree traversal algorithm after a successful intersection.

hitCellSize

public int hitCellSize

The size (side length) of the octree cell that was hit. A value of 1 indicates a leaf cell at the finest resolution.

hitCellX

public int hitCellX

The x coordinate of the octree cell that was hit.

hitCellY

public int hitCellY

The y coordinate of the octree cell that was hit.

hitCellZ

public int hitCellZ

The z coordinate of the octree cell that was hit.

Constructor Details

Ray

public Ray(Point3D origin,
 Point3D direction)

Creates a new ray with the specified origin and direction.

Parameters:

origin - the starting point of the ray

direction - the direction vector of the ray