Package org.lwjgl.opengl

Class NVTransformFeedback2

java.lang.Object

org.lwjgl.opengl.NVTransformFeedback2

public class NVTransformFeedback2
extends java.lang.Object

Native bindings to the NV_transform_feedback2 extension.

The NV_transform_feedback and EXT_transform_feedback extensions allow applications to capture primitives to one or more buffer objects when transformed by the GL. This extension provides a few additional capabilities to these extensions, making transform feedback mode more useful.

First, it provides transform feedback objects encapsulating transform feedback-related state, allowing applications to replace the entire transform feedback configuration in a single bind call. Second, it provides the ability to pause and resume transform feedback operations. When transform feedback is paused, applications may render without transform feedback or may use transform feedback with different state and a different transform feedback object. When transform feedback is resumed, additional primitives are captured and appended to previously captured primitives for the object.

Additionally, this extension provides the ability to draw primitives captured in transform feedback mode without querying the captured primitive count. The command DrawTransformFeedbackNV() is equivalent to glDrawArrays(<mode>, 0, <count>), where count is the number of vertices captured to buffer objects during the last transform feedback capture operation on the transform feedback object used. This draw operation only provides a vertex count -- it does not automatically set up vertex array state or vertex buffer object bindings, which must be done separately by the application.

Requires OpenGL 1.5 and NV_transform_feedback or EXT_transform_feedback.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GL_TRANSFORM_FEEDBACK_BINDING_NV GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE_NV GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED_NV Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
static int	GL_TRANSFORM_FEEDBACK_NV Accepted by the target parameter of BindTransformFeedbackNV.

Method Summary

Modifier and Type	Method and Description
static void	glBindTransformFeedbackNV(int target, int id)
static void	glDeleteTransformFeedbacksNV(int id)
static void	glDeleteTransformFeedbacksNV(int[] ids) Array version of: DeleteTransformFeedbacksNV
static void	glDeleteTransformFeedbacksNV(java.nio.IntBuffer ids)
static void	glDrawTransformFeedbackNV(int mode, int id)
static int	glGenTransformFeedbacksNV()
static void	glGenTransformFeedbacksNV(int[] ids) Array version of: GenTransformFeedbacksNV
static void	glGenTransformFeedbacksNV(java.nio.IntBuffer ids)
static boolean	glIsTransformFeedbackNV(int id)
static void	glPauseTransformFeedbackNV()
static void	glResumeTransformFeedbackNV()

Methods inherited from class java.lang.Object

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

Field Detail

GL_TRANSFORM_FEEDBACK_NV

Accepted by the target parameter of BindTransformFeedbackNV.

GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED_NV, GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE_NV, GL_TRANSFORM_FEEDBACK_BINDING_NV

Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.

Method Detail

glBindTransformFeedbackNV

public static void glBindTransformFeedbackNV(int target,
                                             int id)

glDeleteTransformFeedbacksNV

public static void glDeleteTransformFeedbacksNV(java.nio.IntBuffer ids)

glDeleteTransformFeedbacksNV

public static void glDeleteTransformFeedbacksNV(int id)

glGenTransformFeedbacksNV

public static void glGenTransformFeedbacksNV(java.nio.IntBuffer ids)

glGenTransformFeedbacksNV

public static int glGenTransformFeedbacksNV()

glIsTransformFeedbackNV

public static boolean glIsTransformFeedbackNV(int id)

glPauseTransformFeedbackNV

public static void glPauseTransformFeedbackNV()

glResumeTransformFeedbackNV

public static void glResumeTransformFeedbackNV()

glDrawTransformFeedbackNV

public static void glDrawTransformFeedbackNV(int mode,
                                             int id)

glDeleteTransformFeedbacksNV

public static void glDeleteTransformFeedbacksNV(int[] ids)

Array version of: DeleteTransformFeedbacksNV

glGenTransformFeedbacksNV

public static void glGenTransformFeedbacksNV(int[] ids)

Array version of: GenTransformFeedbacksNV