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

Class OctreeVolume

java.lang.Object

eu.svjatoslav.sixth.e3d.renderer.octree.OctreeVolume

public class OctreeVolume
extends Object

 There are 3 cell types:

      UNUSED

      SOLID
          contains:
              original color
              visible color, after being illuminated by nearby light sources

      CLUSTER
          contains pointers to 8 sub cells
 

Field Summary

Fields

Modifier and Type	Field	Description
int[]	cell1
int[]	cell2
int[]	cell3
int[]	cell4
int[]	cell5
int[]	cell6
int[]	cell7
int[]	cell8
int	cellAllocationPointer	Pointer to the first unused cell.
int	masterCellSize
static final int	TRACE_NO_HIT
int	usedCellsCount

Constructor Summary

Constructors

Constructor	Description
OctreeVolume()

Method Summary

Modifier and Type	Method	Description
void	breakSolidCell(int pointer)
void	clearCell(int pointer)	Clears the cell.
void	deleteCell(int cellPointer)
int	doesIntersect(int cubeX, int cubeY, int cubeZ, int cubeSize, Ray r)
void	fillRectangle(IntegerPoint p1, IntegerPoint p2, Color color)	Fill 3D rectangle.
int	getCellColor(int pointer)
int	getCellIllumination(int pointer)
int	getNewCellPointer()	Scans cells arrays and returns pointer to found unused cell.
void	initWorld(int bufferLength, int masterCellSize)
boolean	isCellSolid(int pointer)
int	makeNewCell(int color, int illumination)
void	markCellAsSolid(int pointer)	Mark cell as solid.
void	putCell(int x, int y, int z, Color color)
void	setCellColor(int pointer, int color)
void	setCellIllumination(int pointer, int illumination)
int	traceCell(int cellX, int cellY, int cellZ, int cellSize, int pointer, Ray ray)	Trace ray through the world and return pointer to intersecting cell.

Methods inherited from class java.lang.Object

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

Field Details

TRACE_NO_HIT

public static final int TRACE_NO_HIT

See Also:

• Constant Field Values

cell1

public int[] cell1

cell2

public int[] cell2

cell3

public int[] cell3

cell4

public int[] cell4

cell5

public int[] cell5

cell6

public int[] cell6

cell7

public int[] cell7

cell8

public int[] cell8

cellAllocationPointer

public int cellAllocationPointer

Pointer to the first unused cell.

usedCellsCount

public int usedCellsCount

masterCellSize

public int masterCellSize

Constructor Details

OctreeVolume

public OctreeVolume()

Method Details

breakSolidCell

public void breakSolidCell(int pointer)

clearCell

public void clearCell(int pointer)

Clears the cell.

Parameters:

pointer - Pointer to the cell.

deleteCell

public void deleteCell(int cellPointer)

doesIntersect

public int doesIntersect(int cubeX,
 int cubeY,
 int cubeZ,
 int cubeSize,
 Ray r)

fillRectangle

public void fillRectangle(IntegerPoint p1,
 IntegerPoint p2,
 Color color)

Fill 3D rectangle.

getCellColor

public int getCellColor(int pointer)

getCellIllumination

public int getCellIllumination(int pointer)

initWorld

public void initWorld(int bufferLength,
 int masterCellSize)

isCellSolid

public boolean isCellSolid(int pointer)

getNewCellPointer

public int getNewCellPointer()

Scans cells arrays and returns pointer to found unused cell.

Returns:

pointer to found unused cell

makeNewCell

public int makeNewCell(int color,
 int illumination)

markCellAsSolid

public void markCellAsSolid(int pointer)

Mark cell as solid.

Parameters:

pointer - pointer to cell

putCell

public void putCell(int x,
 int y,
 int z,
 Color color)

setCellColor

public void setCellColor(int pointer,
 int color)

setCellIllumination

public void setCellIllumination(int pointer,
 int illumination)

traceCell

public int traceCell(int cellX,
 int cellY,
 int cellZ,
 int cellSize,
 int pointer,
 Ray ray)

Trace ray through the world and return pointer to intersecting cell.

Returns:

pointer to intersecting cell or TRACE_NO_HIT if no intersection.