de.rico.engine.effect.glslshader
Class GPUProgram

java.lang.Object
  de.rico.engine.effect.glslshader.GPUProgram

public class GPUProgram
extends java.lang.Object

This class can be used to read in and bind vertex and fragment shaders.

Author:

Stefan Janacek (some additions and refactoring by Frank Bruns)

Constructor Summary

GPUProgram(java.lang.String vertexProgramFile, java.lang.String fragmentProgramFile)
Creates a new GPU program.

Method Summary

void	bind(javax.media.opengl.GL gl) Binds the shader to the successive draw operations.
boolean	init() Initializes the shader.
void	passUniform1f(javax.media.opengl.GL gl, java.lang.String name, float f) Passes a float value to the shader program.
void	passUniform1i(javax.media.opengl.GL gl, java.lang.String name, int i) Passes a integer value to the shader program.
void	passUniform3f(javax.media.opengl.GL gl, java.lang.String name, float f0, float f1, float f2) Passes three float values to the shader program.
void	passUniform4f(javax.media.opengl.GL gl, java.lang.String name, float f0, float f1, float f2, float f3) Passes four float values to the shader program.
void	release(javax.media.opengl.GL gl) Releases the shader.

Methods inherited from class java.lang.Object

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

Constructor Detail

GPUProgram

public GPUProgram(java.lang.String vertexProgramFile,
                  java.lang.String fragmentProgramFile)

Creates a new GPU program.

Parameters:

vertexProgramFile - vertex program file

fragmentProgramFile - fragment program file

Method Detail

init

public boolean init()

Initializes the shader.

bind

public void bind(javax.media.opengl.GL gl)

Binds the shader to the successive draw operations.

Parameters:

gl -

release

public void release(javax.media.opengl.GL gl)

Releases the shader.

Parameters:

gl -

passUniform1i

public void passUniform1i(javax.media.opengl.GL gl,
                          java.lang.String name,
                          int i)

Passes a integer value to the shader program.

Parameters:

name - name of the variable to pass the value to

i - value that gets passed to the shader

passUniform1f

public void passUniform1f(javax.media.opengl.GL gl,
                          java.lang.String name,
                          float f)

Passes a float value to the shader program.

Parameters:

name - name of the variable to pass the value to

f - value that gets passed to the shader

passUniform3f

public void passUniform3f(javax.media.opengl.GL gl,
                          java.lang.String name,
                          float f0,
                          float f1,
                          float f2)

Passes three float values to the shader program.

Parameters:

name - name of the variable to pass the values to

f0 - first value that gets passed to the shader

f1 - second value that gets passed to the shader

f2 - third value that gets passed to the shader

passUniform4f

public void passUniform4f(javax.media.opengl.GL gl,
                          java.lang.String name,
                          float f0,
                          float f1,
                          float f2,
                          float f3)

Passes four float values to the shader program.

Parameters:

name - name of the variable to pass the values to

f0 - first value that gets passed to the shader

f1 - second value that gets passed to the shader

f2 - third value that gets passed to the shader

f3 - fourth value that gets passed to the shader