ARBTransformFeedback2 (LWJGL 3.2.4 SNAPSHOT

java.lang.Object
- org.lwjgl.opengl.ARBTransformFeedback2

```
public class ARBTransformFeedback2
extends java.lang.Object
```
Native bindings to the ARB_transform_feedback2 extension.
The EXT_transform_feedback extension allows 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 which encapsulate 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 DrawTransformFeedback 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 GL20 or ARB_shader_objects and NV_transform_feedback or EXT_transform_feedback. Promoted to core in OpenGL 4.0.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`GL_TRANSFORM_FEEDBACK` Accepted by the `target` parameter of BindTransformFeedback.
`static int`	`GL_TRANSFORM_FEEDBACK_BINDING` Accepted by the `pname` parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
`static int`	`GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE` Accepted by the `pname` parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
`static int`	`GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED` Accepted by the `pname` parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`glBindTransformFeedback(int target, int id)` Binds a transform feedback object.
`static void`	`glDeleteTransformFeedbacks(int id)` Deletes transform feedback objects.
`static void`	`glDeleteTransformFeedbacks(int[] ids)` Array version of: `DeleteTransformFeedbacks`
`static void`	`glDeleteTransformFeedbacks(java.nio.IntBuffer ids)` Deletes transform feedback objects.
`static void`	`glDrawTransformFeedback(int mode, int id)` Render primitives using a count derived from a transform feedback object.
`static int`	`glGenTransformFeedbacks()` Reserves transform feedback object names.
`static void`	`glGenTransformFeedbacks(int[] ids)` Array version of: `GenTransformFeedbacks`
`static void`	`glGenTransformFeedbacks(java.nio.IntBuffer ids)` Reserves transform feedback object names.
`static boolean`	`glIsTransformFeedback(int id)` Determines if a name corresponds to a transform feedback object.
`static void`	`glPauseTransformFeedback()` Pauses transform feedback operations for the currently bound transform feedback object.
`static void`	`glResumeTransformFeedback()` Resumes transform feedback operations for the currently bound transform feedback object.
`static void`	`nglDeleteTransformFeedbacks(int n, long ids)` Unsafe version of: `DeleteTransformFeedbacks`
`static void`	`nglGenTransformFeedbacks(int n, long ids)` Unsafe version of: `GenTransformFeedbacks`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - GL_TRANSFORM_FEEDBACK
```
public static final int GL_TRANSFORM_FEEDBACK
```
    Accepted by the target parameter of BindTransformFeedback.
    
    See Also:
    
    Constant Field Values
  - GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
```
public static final int GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
```
    Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
    
    See Also:
    
    Constant Field Values
  - GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
```
public static final int GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
```
    Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
    
    See Also:
    
    Constant Field Values
  - GL_TRANSFORM_FEEDBACK_BINDING
```
public static final int GL_TRANSFORM_FEEDBACK_BINDING
```
    Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - glBindTransformFeedback
```
public static void glBindTransformFeedback(int target,
                                           int id)
```
    Binds a transform feedback object.
    
    Parameters:
    
    target - the target to which to bind the transform feedback object id. Must be:
    TRANSFORM_FEEDBACK
    
    id - the name of a transform feedback object
  - nglDeleteTransformFeedbacks
```
public static void nglDeleteTransformFeedbacks(int n,
                                               long ids)
```
    Unsafe version of: DeleteTransformFeedbacks
    
    Parameters:
    
    n - the number of transform feedback objects to delete
  - glDeleteTransformFeedbacks
```
public static void glDeleteTransformFeedbacks(java.nio.IntBuffer ids)
```
    Deletes transform feedback objects.
    
    Parameters:
    
    ids - an array of names of transform feedback objects to delete
  - glDeleteTransformFeedbacks
```
public static void glDeleteTransformFeedbacks(int id)
```
    Deletes transform feedback objects.
  - nglGenTransformFeedbacks
```
public static void nglGenTransformFeedbacks(int n,
                                            long ids)
```
    Unsafe version of: GenTransformFeedbacks
    
    Parameters:
    
    n - the number of transform feedback object names to reserve
  - glGenTransformFeedbacks
```
public static void glGenTransformFeedbacks(java.nio.IntBuffer ids)
```
    Reserves transform feedback object names.
    
    Parameters:
    
    ids - an array of into which the reserved names will be written
  - glGenTransformFeedbacks
```
public static int glGenTransformFeedbacks()
```
    Reserves transform feedback object names.
  - glIsTransformFeedback
```
public static boolean glIsTransformFeedback(int id)
```
    Determines if a name corresponds to a transform feedback object.
    
    Parameters:
    
    id - a value that may be the name of a transform feedback object
  - glPauseTransformFeedback
```
public static void glPauseTransformFeedback()
```
    Pauses transform feedback operations for the currently bound transform feedback object.
    When transform feedback operations are paused, transform feedback is still considered active and changing most transform feedback state related to the object results in an error. However, a new transform feedback object may be bound while transform feedback is paused. The error INVALID_OPERATION is generated by PauseTransformFeedback if the currently bound transform feedback is not active or is paused.
    
    When transform feedback is active and not paused, all geometric primitives generated must be compatible with the value of primitiveMode passed to BeginTransformFeedback. The error INVALID_OPERATION is generated by Begin or any operation that implicitly calls Begin (such as DrawElements) if mode is not one of the allowed modes. If a geometry shader is active, its output primitive type is used instead of the mode parameter passed to Begin for the purposes of this error check. Any primitive type may be used while transform feedback is paused.
  - glResumeTransformFeedback
```
public static void glResumeTransformFeedback()
```
    Resumes transform feedback operations for the currently bound transform feedback object.
    The error INVALID_OPERATION is generated by ResumeTransformFeedback if the currently bound transform feedback is not active or is not paused.
  - glDrawTransformFeedback
```
public static void glDrawTransformFeedback(int mode,
                                           int id)
```
    Render primitives using a count derived from a transform feedback object.
    
    Parameters:
    
    mode - what kind of primitives to render. One of:
    POINTS LINE_STRIP LINE_LOOP LINES TRIANGLE_STRIP TRIANGLE_FAN TRIANGLES
    LINES_ADJACENCY LINE_STRIP_ADJACENCY TRIANGLES_ADJACENCY TRIANGLE_STRIP_ADJACENCY PATCHES POLYGON QUADS
    QUAD_STRIP
    
    id - the name of a transform feedback object from which to retrieve a primitive count
  - glDeleteTransformFeedbacks
```
public static void glDeleteTransformFeedbacks(int[] ids)
```
    Array version of: DeleteTransformFeedbacks
  - glGenTransformFeedbacks
```
public static void glGenTransformFeedbacks(int[] ids)
```
    Array version of: GenTransformFeedbacks

`POINTS`	`LINE_STRIP`	`LINE_LOOP`	`LINES`	`TRIANGLE_STRIP`	`TRIANGLE_FAN`	`TRIANGLES`
`LINES_ADJACENCY`	`LINE_STRIP_ADJACENCY`	`TRIANGLES_ADJACENCY`	`TRIANGLE_STRIP_ADJACENCY`	`PATCHES`	`POLYGON`	`QUADS`
`QUAD_STRIP`

Class ARBTransformFeedback2

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GL_TRANSFORM_FEEDBACK

GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED

GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE

GL_TRANSFORM_FEEDBACK_BINDING

Method Detail

glBindTransformFeedback

nglDeleteTransformFeedbacks

glDeleteTransformFeedbacks

glDeleteTransformFeedbacks

nglGenTransformFeedbacks

glGenTransformFeedbacks

glGenTransformFeedbacks

glIsTransformFeedback

glPauseTransformFeedback

glResumeTransformFeedback

glDrawTransformFeedback

glDeleteTransformFeedbacks

glGenTransformFeedbacks