Package org.sunflow.core

Class Geometry

java.lang.Object

org.sunflow.core.Geometry

All Implemented Interfaces:

RenderObject

public class Geometry
extends java.lang.Object
implements RenderObject

This class represent a geometric object in its native object space. These object are not rendered directly, they must be instanced via Instance. This class performs all the bookkeeping needed for on-demand tesselation and acceleration structure building.

Field Summary

Fields

Modifier and Type	Field	Description
private AccelerationStructure	accel
private java.lang.String	acceltype
private int	builtAccel
private int	builtTess
private PrimitiveList	primitives
private Tesselatable	tesselatable

Constructor Summary

Constructors

Constructor	Description
Geometry(PrimitiveList primitives)	Create a geometry from the specified primitive aggregate.
Geometry(Tesselatable tesselatable)	Create a geometry from the specified tesselatable object.

Method Summary

Modifier and Type	Method	Description
private void	build()
(package private) PrimitiveList	getBakingPrimitives()
(package private) int	getNumPrimitives()
(package private) PrimitiveList	getPrimitiveList()
(package private) BoundingBox	getWorldBounds(Matrix4 o2w)
(package private) void	intersect(Ray r, IntersectionState state)
(package private) void	prepareShadingState(ShadingState state)
private void	tesselate()
boolean	update(ParameterList pl, SunflowAPI api)	Update this object given a list of parameters.

Methods inherited from class java.lang.Object

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

Field Detail

tesselatable

private Tesselatable tesselatable

primitives

private PrimitiveList primitives

accel

private AccelerationStructure accel

builtAccel

private int builtAccel

builtTess

private int builtTess

acceltype

private java.lang.String acceltype

Constructor Detail

Geometry

public Geometry(Tesselatable tesselatable)

Create a geometry from the specified tesselatable object. The actual renderable primitives will be generated on demand.

Parameters:

tesselatable - tesselation object

Geometry

public Geometry(PrimitiveList primitives)

Create a geometry from the specified primitive aggregate. The acceleration structure for this object will be built on demand.

Parameters:

primitives - primitive list object

Method Detail

update

public boolean update(ParameterList pl,
                      SunflowAPI api)

Description copied from interface: RenderObject

Update this object given a list of parameters. This method is guarenteed to be called at least once on every object, but it should correctly handle empty parameter lists. This means that the object should be in a valid state from the time it is constructed. This method should also return true or false depending on whether the update was succesfull or not.

Specified by:

update in interface RenderObject

Parameters:

pl - list of parameters to read from

api - reference to the current scene

Returns:

true if the update is succesfull, false otherwise

getNumPrimitives

int getNumPrimitives()

getWorldBounds

BoundingBox getWorldBounds(Matrix4 o2w)

intersect

void intersect(Ray r,
               IntersectionState state)

tesselate

private void tesselate()

build

private void build()

prepareShadingState

void prepareShadingState(ShadingState state)

getBakingPrimitives

PrimitiveList getBakingPrimitives()

getPrimitiveList

PrimitiveList getPrimitiveList()