gestalt.util
Class JoglUtil

java.lang.Object
  gestalt.util.JoglUtil

public class JoglUtil
extends java.lang.Object

Constructor Summary

JoglUtil()

Method Summary

static int	_getTextureUnitID(int theTextureUnitToken)
static void	applyOrigin(GL gl, int theOrigin) apply origin offset to current opengl matrix stack.
static TransformMatrix4f	applyTransform(AbstractShape theShape, Vector3f theResultPosition) applies the transforms stored in 'transform', 'rotation' and 'scale' as defined in transform mode.
static void	applyTransform(GL gl, int theTransformMode, TransformMatrix4f theTransform, Vector3f theRotation, Vector3f theScale) applies the transforms stored in 'transform', 'rotation' and 'scale' as defined in transform mode.
static TransformMatrix4f	applyTransform(int theTransformMode, TransformMatrix4f theTransform, Vector3f theRotation, Vector3f theScale, Vector3f theResultPosition) applies the transforms stored in 'transform', 'rotation' and 'scale' as defined in transform mode.
static boolean	checkFrameBufferStatus(GL gl) check frame buffer object status.
static void	circle(GL gl, float theRadius) draws a circle from line segments in opengl.
static void	circle(GL gl, Vector3f thePosition, float theRadius) draws a circle from line segments in opengl.
static JoglMultiTexPlane	createTextureView(TexturePlugin theTexture, Vector3f thePosition, Vector3f theScale) creates a plane that displays a texture on arbitrary texture unit, defined in the texture object.
static void	draw(GL gl, Vertex3f theVertex)
static Plane	enableTrails(BasicRenderer theRenderer) tries to turn on trail for current context.
static JoglMesh	getCubeMesh()
static GL	getGL(GLContext theRenderContext)
static GLU	getGLU(GLContext theRenderContext)
static int	getTextureUnitID(int theTextureUnitToken) transforms opengl texture-id-token to numeric value.
static void	gluPerspective(GL gl, float theFOVY, float theAspect, float theZNearPlane, float theZFarPlane, Vector2f theFrustumOffset)
static int	mapGestaltPrimitiveToOpenGLPrimitive(int theGestaltPrimitive)
static int	mapOpenGLPrimitiveToGestaltPrimitive(int theOpenGLPrimitive)
static void	printExtensions(GL gl) print availabe opengl extensions.
static boolean	printGLError(GL gl, GLU glu, java.lang.String theLocation)
static boolean	printGLError(GL gl, GLU glu, java.lang.String theLocation, boolean thePrintFlag) print opengl error.
static boolean	printGLError(GL gl, java.lang.String theLocation)
static boolean	testExtensionAvailability(GL gl, java.lang.String theExtension) test availability of an opengl extension.

Methods inherited from class java.lang.Object

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

Constructor Detail

JoglUtil

public JoglUtil()

Method Detail

mapOpenGLPrimitiveToGestaltPrimitive

public static int mapOpenGLPrimitiveToGestaltPrimitive(int theOpenGLPrimitive)

mapGestaltPrimitiveToOpenGLPrimitive

public static int mapGestaltPrimitiveToOpenGLPrimitive(int theGestaltPrimitive)

createTextureView

public static JoglMultiTexPlane createTextureView(TexturePlugin theTexture,
                                                  Vector3f thePosition,
                                                  Vector3f theScale)

creates a plane that displays a texture on arbitrary texture unit, defined in the texture object.

Parameters:

theTexture - TexturePlugin

thePosition - Vector3f

theScale - Vector3f

Returns:

JoglMultiTexPlane

enableTrails

public static Plane enableTrails(BasicRenderer theRenderer)

tries to turn on trail for current context.

Parameters:

theRenderer - BasicRenderer

Returns:

Plane

_getTextureUnitID

public static int _getTextureUnitID(int theTextureUnitToken)

getTextureUnitID

public static final int getTextureUnitID(int theTextureUnitToken)

transforms opengl texture-id-token to numeric value. example: GL_TEXTURE0 becomes 0, GL_TEXTURE1 becomes 1 ...

Parameters:

theTextureUnitToken - int

Returns:

int

applyOrigin

public static final void applyOrigin(GL gl,
                                     int theOrigin)

apply origin offset to current opengl matrix stack.

Parameters:

gl - GL

theOrigin - int

applyTransform

public static final void applyTransform(GL gl,
                                        int theTransformMode,
                                        TransformMatrix4f theTransform,
                                        Vector3f theRotation,
                                        Vector3f theScale)

applies the transforms stored in 'transform', 'rotation' and 'scale' as defined in transform mode.

Parameters:

gl - GL

_myTransformMode - int

transform - TransformMatrix4f

rotation - Vector3f

scale - Vector3f

applyTransform

public static final TransformMatrix4f applyTransform(AbstractShape theShape,
                                                     Vector3f theResultPosition)

applies the transforms stored in 'transform', 'rotation' and 'scale' as defined in transform mode.

Parameters:

theShape - AbstractShape

theResultPosition - Vector3f

Returns:

TransformMatrix4f

applyTransform

public static final TransformMatrix4f applyTransform(int theTransformMode,
                                                     TransformMatrix4f theTransform,
                                                     Vector3f theRotation,
                                                     Vector3f theScale,
                                                     Vector3f theResultPosition)

applies the transforms stored in 'transform', 'rotation' and 'scale' as defined in transform mode.

Parameters:

theTransformMode - int

theTransform - TransformMatrix4f

theRotation - Vector3f

theScale - Vector3f

theResultPosition - Vector3f

Returns:

TransformMatrix4f

circle

public static final void circle(GL gl,
                                Vector3f thePosition,
                                float theRadius)

draws a circle from line segments in opengl.

Parameters:

gl - GL

thePosition - Vector3f

theRadius - float

circle

public static final void circle(GL gl,
                                float theRadius)

draws a circle from line segments in opengl.

Parameters:

gl - GL

theRadius - float

draw

public static final void draw(GL gl,
                              Vertex3f theVertex)

Parameters:

gl - GL

theVertex - Vertex3f

gluPerspective

public static final void gluPerspective(GL gl,
                                        float theFOVY,
                                        float theAspect,
                                        float theZNearPlane,
                                        float theZFarPlane,
                                        Vector2f theFrustumOffset)

Parameters:

gl - GL

theFOVY - float

theAspect - float

theZNearPlane - float

theZFarPlane - float

theFrustumOffset - Vector2f

checkFrameBufferStatus

public static final boolean checkFrameBufferStatus(GL gl)

check frame buffer object status.

Parameters:

gl - GL

Returns:

boolean

printGLError

public static final boolean printGLError(GL gl,
                                         java.lang.String theLocation)

printGLError

public static final boolean printGLError(GL gl,
                                         GLU glu,
                                         java.lang.String theLocation)

printGLError

public static final boolean printGLError(GL gl,
                                         GLU glu,
                                         java.lang.String theLocation,
                                         boolean thePrintFlag)

print opengl error.

Parameters:

gl - GL

glu - GLU

theLocation - String

thePrintFlag - boolean

Returns:

boolean

printExtensions

public static final void printExtensions(GL gl)

print availabe opengl extensions.

Parameters:

gl - GL

testExtensionAvailability

public static final boolean testExtensionAvailability(GL gl,
                                                      java.lang.String theExtension)

test availability of an opengl extension.

Parameters:

gl - GL

theExtension - String

Returns:

boolean

getGL

public static final GL getGL(GLContext theRenderContext)

getGLU

public static final GLU getGLU(GLContext theRenderContext)

getCubeMesh

public static JoglMesh getCubeMesh()