maspack.render

Class IsRenderableBase

java.lang.Object

maspack.render.IsRenderableBase

All Implemented Interfaces:

IsRenderable

Direct Known Subclasses:

RenderableBase

public abstract class IsRenderableBase
extends java.lang.Object
implements IsRenderable

Field Summary

Fields inherited from interface maspack.render.IsRenderable

TRANSPARENT, TWO_DIMENSIONAL

Constructor Summary

Constructors

Constructor and Description
IsRenderableBase()

Method Summary

Modifier and Type	Method and Description
int	getRenderHints() Returns a bit code giving rendering hints about this renderable.
void	prerender(RenderList list) Called prior to rendering to allow this object to update the internal state required for rendering (such as by caching rendering coordinates).
abstract void	render(Renderer renderer, int flags) Render this object using the functionality of the supplied Renderer.
void	updateBounds(Vector3d pmin, Vector3d pmax) Update the minimum and maximum points for this object.

Methods inherited from class java.lang.Object

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

Constructor Detail

IsRenderableBase

public IsRenderableBase()

Method Detail

prerender

public void prerender(RenderList list)

Called prior to rendering to allow this object to update the internal state required for rendering (such as by caching rendering coordinates). The object may add internal objects to the list of objects being rendered, by calling

list.addIfVisible (obj);

for each of the objects in question.

Specified by:

prerender in interface IsRenderable

Parameters:

list - list of objects to be rendered

render

public abstract void render(Renderer renderer,
                            int flags)

Render this object using the functionality of the supplied Renderer.

Specified by:

render in interface IsRenderable

Parameters:

renderer - provides the functionality used to perform the rendering.

flags - flags that may be used to control different aspects of the rendering. Flags are defined in Renderer and currently include Renderer.HIGHLIGHT and Renderer.SORT_FACES.

updateBounds

public void updateBounds(Vector3d pmin,
                         Vector3d pmax)

Update the minimum and maximum points for this object. In an x-y-z coordinate system with x directed to the right and y directed upwards, the minimum and maximum points can be thought of as defining the left-lower-far and right-upper-near corners of a bounding cube. This method should only reduce the elements of the minimum point and increase the elements of the maximum point, since it may be used as part of an iteration to determine the bounding cube for several different objects.

Specified by:

updateBounds in interface IsRenderable

Parameters:

pmin - minimum point

pmax - maximum point

getRenderHints

public int getRenderHints()

Returns a bit code giving rendering hints about this renderable. Current bit codes include TRANSPARENT and TWO_DIMENSIONAL.

Specified by:

getRenderHints in interface IsRenderable

Returns:

bit code of rendering hints.