maspack.render.GL.GL3

Class GL3Utilities

java.lang.Object

maspack.render.GL.GL3.GL3Utilities

public class GL3Utilities
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	debug

Constructor Summary

Constructors

Constructor and Description
GL3Utilities()

Method Summary

Modifier and Type	Method and Description
static void	activateVertexAttribute(com.jogamp.opengl.GL3 gl, int loc, GL3AttributeStorage storage, int stride, int offset) Enables a vertex attribute pointer based on a given storage, correctly handling matrix types (since matrices occupy multiple attribute locations)
static void	activateVertexAttribute(com.jogamp.opengl.GL3 gl, int loc, GL3AttributeStorage storage, int stride, int offset, int divisor) Enables a vertex attribute pointer based on a given storage, correctly handling matrix types (since matrices occupy multiple attribute locations)
static void	deactivateVertexAttribute(com.jogamp.opengl.GL3 gl, int loc) Enables a vertex attribute pointer based on a given storage, correctly handling matrix types (since matrices occupy multiple attribute locations)
static int	getAlignedWidth(int byteWidth) For buffer objects, attributes need to be aligned to multiples of 4-bytes.
static int	getGLType(GL3AttributeStorage.StorageType type)
static com.jogamp.opengl.GL3	wrap(com.jogamp.opengl.GL3 gl)

Methods inherited from class java.lang.Object

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

Field Detail

debug

public static boolean debug

Constructor Detail

GL3Utilities

public GL3Utilities()

Method Detail

wrap

public static com.jogamp.opengl.GL3 wrap(com.jogamp.opengl.GL3 gl)

getAlignedWidth

public static int getAlignedWidth(int byteWidth)

For buffer objects, attributes need to be aligned to multiples of 4-bytes. This returns the required alignment width provided a true byte width (i.e. rounds up to nearest 4 bytes)

Parameters:

byteWidth - width in bytes of attribute

Returns:

properly aligned width

activateVertexAttribute

public static void activateVertexAttribute(com.jogamp.opengl.GL3 gl,
                                           int loc,
                                           GL3AttributeStorage storage,
                                           int stride,
                                           int offset,
                                           int divisor)

Enables a vertex attribute pointer based on a given storage, correctly handling matrix types (since matrices occupy multiple attribute locations)

Parameters:

gl - active context

loc - attribute location

storage - attribute storage

stride - attribute stride in VBO

offset - attribute offset in VBO

activateVertexAttribute

public static void activateVertexAttribute(com.jogamp.opengl.GL3 gl,
                                           int loc,
                                           GL3AttributeStorage storage,
                                           int stride,
                                           int offset)

Enables a vertex attribute pointer based on a given storage, correctly handling matrix types (since matrices occupy multiple attribute locations)

Parameters:

gl - active context

loc - attribute location

storage - attribute storage

stride - attribute stride in VBO

offset - attribute offset in VBO

deactivateVertexAttribute

public static void deactivateVertexAttribute(com.jogamp.opengl.GL3 gl,
                                             int loc)

Enables a vertex attribute pointer based on a given storage, correctly handling matrix types (since matrices occupy multiple attribute locations)

Parameters:

gl - active context

loc - attribute location

getGLType

public static int getGLType(GL3AttributeStorage.StorageType type)