org.sunflow.core.primitive
Class CubeGrid

java.lang.Object
  org.sunflow.core.primitive.CubeGrid

All Implemented Interfaces:

PrimitiveList, RenderObject

public abstract class CubeGrid
extends java.lang.Object
implements PrimitiveList

Constructor Summary

CubeGrid()

Method Summary

BoundingBox	getBounds()
int	getNumPrimitives() Returns the number of individual primtives in this aggregate object.
float	getPrimitiveBound(int primID, int i) Retrieve the bounding box component of a particular primitive in object space.
BoundingBox	getWorldBounds(Matrix4 o2w) Compute a bounding box of this object in world space, using the specified object-to-world transformation matrix.
protected abstract boolean	inside(int x, int y, int z)
void	intersectPrimitive(Ray r, int primID, IntersectionState state) Intersect the specified primitive in local space.
void	prepareShadingState(ShadingState state) Prepare the specified ShadingState by setting all of its internal parameters.
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

Methods inherited from interface org.sunflow.core.PrimitiveList

getBakingPrimitives

Constructor Detail

CubeGrid

public CubeGrid()

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

inside

protected abstract boolean inside(int x,
                                  int y,
                                  int z)

getBounds

public BoundingBox getBounds()

prepareShadingState

public void prepareShadingState(ShadingState state)

Description copied from interface: PrimitiveList

Prepare the specified ShadingState by setting all of its internal parameters.

Specified by:

prepareShadingState in interface PrimitiveList

Parameters:

state - shading state to fill in

intersectPrimitive

public void intersectPrimitive(Ray r,
                               int primID,
                               IntersectionState state)

Description copied from interface: PrimitiveList

Intersect the specified primitive in local space.

Specified by:

intersectPrimitive in interface PrimitiveList

Parameters:

r - ray in the object's local space

primID - primitive index to intersect

state - intersection state

See Also:

Ray.setMax(float), IntersectionState.setIntersection(int, float, float)

getNumPrimitives

public int getNumPrimitives()

Description copied from interface: PrimitiveList

Returns the number of individual primtives in this aggregate object.

Specified by:

getNumPrimitives in interface PrimitiveList

Returns:

number of primitives

getPrimitiveBound

public float getPrimitiveBound(int primID,
                               int i)

Description copied from interface: PrimitiveList

Retrieve the bounding box component of a particular primitive in object space. Even indexes get minimum values, while odd indexes get the maximum values for each axis.

Specified by:

getPrimitiveBound in interface PrimitiveList

Parameters:

primID - primitive index

i - bounding box side index

Returns:

value of the request bound

getWorldBounds

public BoundingBox getWorldBounds(Matrix4 o2w)

Description copied from interface: PrimitiveList

Compute a bounding box of this object in world space, using the specified object-to-world transformation matrix. The bounds should be as exact as possible, if they are difficult or expensive to compute exactly, you may use Matrix4.transform(BoundingBox). If the matrix is null no transformation is needed, and object space is equivalent to world space.

Specified by:

getWorldBounds in interface PrimitiveList

Parameters:

o2w - object to world transformation matrix

Returns:

object bounding box in world space