com.jme.scene.state
Class VertexProgramState

java.lang.Object
  com.jme.scene.state.RenderState
      com.jme.scene.state.VertexProgramState

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

LWJGLVertexProgramState

public abstract class VertexProgramState

extends RenderState

Implementation of the GL_ARB_vertex_program extension.

Version:

$Id: VertexProgramState.java,v 1.5 2004/08/02 23:10:15 ericthered Exp $

Author:

Eric Woroshow

See Also:

Serialized Form

Field Summary

protected static float[][]	envparameters Environmental parameters applied to all vertex programs
protected float[][]	parameters Parameters local to this vertex program
protected boolean	usingParameters If any local parameters for this VP state are set

Fields inherited from class com.jme.scene.state.RenderState

RS_ALPHA, RS_ATTRIBUTE, RS_CULL, RS_DITHER, RS_FOG, RS_FRAGMENT_PROGRAM, RS_GLSL_SHADER_OBJECTS, RS_LIGHT, RS_MATERIAL, RS_MAX_STATE, RS_SHADE, RS_STENCIL, RS_TEXTURE, RS_VERTEX_PROGRAM, RS_WIREFRAME, RS_ZBUFFER

Constructor Summary

VertexProgramState()
Creates a new VertexProgramState.

Method Summary

int	getType() Defined by the subclass, this returns an int identifying the renderstate.
abstract boolean	isSupported() isSupported determines if the ARB_vertex_program extension is supported by current graphics configuration.
abstract void	load(java.net.URL file) load loads the vertex program from the specified file.
static void	setEnvParameter(float[] param, int paramID) setEnvParameter sets an environmental vertex program parameter that is accessable by all vertex programs in memory.
void	setParameter(float[] param, int paramID) setParameter sets a parameter for this vertex program.

Methods inherited from class com.jme.scene.state.RenderState

apply, extract, isEnabled, setEnabled

Methods inherited from class java.lang.Object

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

Field Detail

envparameters

protected static float[][] envparameters

Environmental parameters applied to all vertex programs

usingParameters

protected boolean usingParameters

If any local parameters for this VP state are set

parameters

protected float[][] parameters

Parameters local to this vertex program

Constructor Detail

VertexProgramState

public VertexProgramState()

Creates a new VertexProgramState. load(URL) must be called before the state can be used.

Method Detail

setEnvParameter

public static void setEnvParameter(float[] param,
                                   int paramID)

setEnvParameter sets an environmental vertex program parameter that is accessable by all vertex programs in memory.

Parameters:

param - four-element array of floating point numbers

paramID - identity number of the parameter, ranging from 0 to 95

isSupported

public abstract boolean isSupported()

isSupported determines if the ARB_vertex_program extension is supported by current graphics configuration.

Returns:

if ARB vertex programs are supported

setParameter

public void setParameter(float[] param,
                         int paramID)

setParameter sets a parameter for this vertex program.

Parameters:

paramID - identity number of the parameter, ranging from 0 to 95

param - four-element array of floating point numbers

getType

public int getType()

Description copied from class: RenderState

Defined by the subclass, this returns an int identifying the renderstate. For example, RS_CULL or RS_TEXTURE.

Specified by:

getType in class RenderState

Returns:

RS_VERTEX_PROGRAM

See Also:

RenderState.getType()

load

public abstract void load(java.net.URL file)

load loads the vertex program from the specified file. The program must be in ASCII format. We delegate the loading to each implementation because we do not know in what format the underlying API wants the data.

Parameters:

file - text file containing the vertex program