EXTTransformFeedback (LWJGL 3.2.4 SNAPSHOT

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

```
public class EXTTransformFeedback
extends java.lang.Object
```
Native bindings to the EXT_transform_feedback extension.
This extension provides a new mode to the GL, called transform feedback, which records selected vertex attributes for each primitive processed by the GL. The selected attributes are written into buffer objects, and can be written with each attribute in a separate buffer object or with all attributes interleaved into a single buffer object. If a geometry shader is active, the primitives recorded are those emitted by the geometry shader. Otherwise, transform feedback captures primitives whose vertices are transformed by a vertex shader. In either case, the primitives captured are those generated prior to clipping. Transform feedback mode captures the values of specified varying variables emitted from GLSL vertex or geometry shaders.

The vertex data recorded in transform feedback mode is stored into buffer objects as an array of vertex attributes. The regular representation and the use of buffer objects allows the recorded data to be processed directly by the GL without requiring CPU intervention to copy data. In particular, transform feedback data can be used for vertex arrays (via vertex buffer objects), as the source for pixel data (via pixel buffer objects), as shader constant data (via the NV_parameter_buffer_object or EXT_bindable_uniform extensions), or via any other extension that makes use of buffer objects.

This extension introduces new query object support to allow transform feedback mode to operate asynchronously. Query objects allow applications to determine when transform feedback results are complete, as well as the number of primitives processed and written back to buffer objects while in transform feedback mode. This extension also provides a new rasterizer discard enable, which allows applications to use transform feedback to capture vertex attributes without rendering anything.

Requires OpenGL 2.0 or ARB_shader_objects. Promoted to core in OpenGL 3.0.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`GL_INTERLEAVED_ATTRIBS_EXT` Accepted by the `bufferMode` parameter of TransformFeedbackVaryingsEXT.
`static int`	`GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT` Accepted by the `pname` parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
`static int`	`GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT` Accepted by the `pname` parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
`static int`	`GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT` Accepted by the `pname` parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
`static int`	`GL_PRIMITIVES_GENERATED_EXT` Accepted by the `target` parameter of BeginQuery, EndQuery, and GetQueryiv.
`static int`	`GL_RASTERIZER_DISCARD_EXT` Accepted by the `cap` parameter of Enable, Disable, and IsEnabled, and by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_SEPARATE_ATTRIBS_EXT` Accepted by the `bufferMode` parameter of TransformFeedbackVaryingsEXT.
`static int`	`GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_EXT` Accepted by the `param` parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT, and by the `pname` parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
`static int`	`GL_TRANSFORM_FEEDBACK_BUFFER_EXT` Accepted by the `target` parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferPointerv, BindBufferRangeEXT, BindBufferOffsetEXT and BindBufferBaseEXT.
`static int`	`GL_TRANSFORM_FEEDBACK_BUFFER_MODE_EXT` Accepted by the `pname` parameter of GetProgramiv.
`static int`	`GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_EXT` Accepted by the `param` parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.
`static int`	`GL_TRANSFORM_FEEDBACK_BUFFER_START_EXT` Accepted by the `param` parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.
`static int`	`GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_EXT` Accepted by the `target` parameter of BeginQuery, EndQuery, and GetQueryiv.
`static int`	`GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH_EXT` Accepted by the `pname` parameter of GetProgramiv.
`static int`	`GL_TRANSFORM_FEEDBACK_VARYINGS_EXT` Accepted by the `pname` parameter of GetProgramiv.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`glBeginTransformFeedbackEXT(int primitiveMode)`
`static void`	`glBindBufferBaseEXT(int target, int index, int buffer)`
`static void`	`glBindBufferOffsetEXT(int target, int index, int buffer, long offset)`
`static void`	`glBindBufferRangeEXT(int target, int index, int buffer, long offset, long size)`
`static void`	`glEndTransformFeedbackEXT()`
`static boolean`	`glGetBooleanIndexedEXT(int target, int index)`
`static void`	`glGetBooleanIndexedvEXT(int target, int index, java.nio.ByteBuffer data)`
`static int`	`glGetIntegerIndexedEXT(int target, int index)`
`static void`	`glGetIntegerIndexedvEXT(int target, int index, int[] data)` Array version of: `GetIntegerIndexedvEXT`
`static void`	`glGetIntegerIndexedvEXT(int target, int index, java.nio.IntBuffer data)`
`static void`	`glGetTransformFeedbackVaryingEXT(int program, int index, int[] length, int[] size, int[] type, java.nio.ByteBuffer name)` Array version of: `GetTransformFeedbackVaryingEXT`
`static java.lang.String`	`glGetTransformFeedbackVaryingEXT(int program, int index, java.nio.IntBuffer size, java.nio.IntBuffer type)`
`static void`	`glGetTransformFeedbackVaryingEXT(int program, int index, java.nio.IntBuffer length, java.nio.IntBuffer size, java.nio.IntBuffer type, java.nio.ByteBuffer name)`
`static java.lang.String`	`glGetTransformFeedbackVaryingEXT(int program, int index, int bufSize, java.nio.IntBuffer size, java.nio.IntBuffer type)`
`static void`	`glTransformFeedbackVaryingsEXT(int program, java.lang.CharSequence[] varyings, int bufferMode)`
`static void`	`glTransformFeedbackVaryingsEXT(int program, java.lang.CharSequence varying, int bufferMode)`
`static void`	`glTransformFeedbackVaryingsEXT(int program, org.lwjgl.PointerBuffer varyings, int bufferMode)`
`static void`	`nglGetBooleanIndexedvEXT(int target, int index, long data)`
`static void`	`nglGetIntegerIndexedvEXT(int target, int index, long data)`
`static void`	`nglGetTransformFeedbackVaryingEXT(int program, int index, int bufSize, long length, long size, long type, long name)`
`static void`	`nglTransformFeedbackVaryingsEXT(int program, int count, long varyings, int bufferMode)`

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

Field Detail
- GL_TRANSFORM_FEEDBACK_BUFFER_EXT
```
public static final int GL_TRANSFORM_FEEDBACK_BUFFER_EXT
```
  Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferPointerv, BindBufferRangeEXT, BindBufferOffsetEXT and BindBufferBaseEXT.
  
  See Also:
  
  Constant Field Values
- GL_TRANSFORM_FEEDBACK_BUFFER_START_EXT
```
public static final int GL_TRANSFORM_FEEDBACK_BUFFER_START_EXT
```
  Accepted by the param parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.
  
  See Also:
  
  Constant Field Values
- GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_EXT
```
public static final int GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_EXT
```
  Accepted by the param parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.
  
  See Also:
  
  Constant Field Values
- GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_EXT
```
public static final int GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_EXT
```
  Accepted by the param parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT, and by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
  
  See Also:
  
  Constant Field Values
- GL_INTERLEAVED_ATTRIBS_EXT
```
public static final int GL_INTERLEAVED_ATTRIBS_EXT
```
  Accepted by the bufferMode parameter of TransformFeedbackVaryingsEXT.
  
  See Also:
  
  Constant Field Values
- GL_SEPARATE_ATTRIBS_EXT
```
public static final int GL_SEPARATE_ATTRIBS_EXT
```
  Accepted by the bufferMode parameter of TransformFeedbackVaryingsEXT.
  
  See Also:
  
  Constant Field Values
- GL_PRIMITIVES_GENERATED_EXT
```
public static final int GL_PRIMITIVES_GENERATED_EXT
```
  Accepted by the target parameter of BeginQuery, EndQuery, and GetQueryiv.
  
  See Also:
  
  Constant Field Values
- GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_EXT
```
public static final int GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_EXT
```
  Accepted by the target parameter of BeginQuery, EndQuery, and GetQueryiv.
  
  See Also:
  
  Constant Field Values
- GL_RASTERIZER_DISCARD_EXT
```
public static final int GL_RASTERIZER_DISCARD_EXT
```
  Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT
```
public static final int GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT
```
  Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
  
  See Also:
  
  Constant Field Values
- GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT
```
public static final int GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT
```
  Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
  
  See Also:
  
  Constant Field Values
- GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT
```
public static final int GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT
```
  Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
  
  See Also:
  
  Constant Field Values
- GL_TRANSFORM_FEEDBACK_VARYINGS_EXT
```
public static final int GL_TRANSFORM_FEEDBACK_VARYINGS_EXT
```
  Accepted by the pname parameter of GetProgramiv.
  
  See Also:
  
  Constant Field Values
- GL_TRANSFORM_FEEDBACK_BUFFER_MODE_EXT
```
public static final int GL_TRANSFORM_FEEDBACK_BUFFER_MODE_EXT
```
  Accepted by the pname parameter of GetProgramiv.
  
  See Also:
  
  Constant Field Values
- GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH_EXT
```
public static final int GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH_EXT
```
  Accepted by the pname parameter of GetProgramiv.
  
  See Also:
  
  Constant Field Values

Method Detail

glBindBufferRangeEXT

public static void glBindBufferRangeEXT(int target,
                                        int index,
                                        int buffer,
                                        long offset,
                                        long size)

glBindBufferOffsetEXT

public static void glBindBufferOffsetEXT(int target,
                                         int index,
                                         int buffer,
                                         long offset)

glBindBufferBaseEXT

public static void glBindBufferBaseEXT(int target,
                                       int index,
                                       int buffer)

glBeginTransformFeedbackEXT

public static void glBeginTransformFeedbackEXT(int primitiveMode)

glEndTransformFeedbackEXT

public static void glEndTransformFeedbackEXT()

nglTransformFeedbackVaryingsEXT

public static void nglTransformFeedbackVaryingsEXT(int program,
                                                   int count,
                                                   long varyings,
                                                   int bufferMode)

glTransformFeedbackVaryingsEXT

public static void glTransformFeedbackVaryingsEXT(int program,
                                                  org.lwjgl.PointerBuffer varyings,
                                                  int bufferMode)

glTransformFeedbackVaryingsEXT

public static void glTransformFeedbackVaryingsEXT(int program,
                                                  java.lang.CharSequence[] varyings,
                                                  int bufferMode)

glTransformFeedbackVaryingsEXT

public static void glTransformFeedbackVaryingsEXT(int program,
                                                  java.lang.CharSequence varying,
                                                  int bufferMode)

nglGetTransformFeedbackVaryingEXT

public static void nglGetTransformFeedbackVaryingEXT(int program,
                                                     int index,
                                                     int bufSize,
                                                     long length,
                                                     long size,
                                                     long type,
                                                     long name)

glGetTransformFeedbackVaryingEXT

public static void glGetTransformFeedbackVaryingEXT(int program,
                                                    int index,
                                                    @Nullable
                                                    java.nio.IntBuffer length,
                                                    java.nio.IntBuffer size,
                                                    java.nio.IntBuffer type,
                                                    java.nio.ByteBuffer name)

glGetTransformFeedbackVaryingEXT

public static java.lang.String glGetTransformFeedbackVaryingEXT(int program,
                                                                int index,
                                                                int bufSize,
                                                                java.nio.IntBuffer size,
                                                                java.nio.IntBuffer type)

glGetTransformFeedbackVaryingEXT

public static java.lang.String glGetTransformFeedbackVaryingEXT(int program,
                                                                int index,
                                                                java.nio.IntBuffer size,
                                                                java.nio.IntBuffer type)

nglGetIntegerIndexedvEXT

public static void nglGetIntegerIndexedvEXT(int target,
                                            int index,
                                            long data)

glGetIntegerIndexedvEXT

public static void glGetIntegerIndexedvEXT(int target,
                                           int index,
                                           java.nio.IntBuffer data)

glGetIntegerIndexedEXT

public static int glGetIntegerIndexedEXT(int target,
                                         int index)

nglGetBooleanIndexedvEXT

public static void nglGetBooleanIndexedvEXT(int target,
                                            int index,
                                            long data)

glGetBooleanIndexedvEXT

public static void glGetBooleanIndexedvEXT(int target,
                                           int index,
                                           java.nio.ByteBuffer data)

glGetBooleanIndexedEXT

public static boolean glGetBooleanIndexedEXT(int target,
                                             int index)

glGetTransformFeedbackVaryingEXT

public static void glGetTransformFeedbackVaryingEXT(int program,
                                                    int index,
                                                    @Nullable
                                                    int[] length,
                                                    int[] size,
                                                    int[] type,
                                                    java.nio.ByteBuffer name)

Array version of: GetTransformFeedbackVaryingEXT

glGetIntegerIndexedvEXT

public static void glGetIntegerIndexedvEXT(int target,
                                           int index,
                                           int[] data)

Array version of: GetIntegerIndexedvEXT

Class EXTTransformFeedback

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GL_TRANSFORM_FEEDBACK_BUFFER_EXT

GL_TRANSFORM_FEEDBACK_BUFFER_START_EXT

GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_EXT

GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_EXT

GL_INTERLEAVED_ATTRIBS_EXT

GL_SEPARATE_ATTRIBS_EXT

GL_PRIMITIVES_GENERATED_EXT

GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_EXT

GL_RASTERIZER_DISCARD_EXT

GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT

GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT

GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT

GL_TRANSFORM_FEEDBACK_VARYINGS_EXT

GL_TRANSFORM_FEEDBACK_BUFFER_MODE_EXT

GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH_EXT

Method Detail

glBindBufferRangeEXT

glBindBufferOffsetEXT

glBindBufferBaseEXT

glBeginTransformFeedbackEXT

glEndTransformFeedbackEXT

nglTransformFeedbackVaryingsEXT

glTransformFeedbackVaryingsEXT

glTransformFeedbackVaryingsEXT

glTransformFeedbackVaryingsEXT

nglGetTransformFeedbackVaryingEXT

glGetTransformFeedbackVaryingEXT

glGetTransformFeedbackVaryingEXT

glGetTransformFeedbackVaryingEXT

nglGetIntegerIndexedvEXT

glGetIntegerIndexedvEXT

glGetIntegerIndexedEXT

nglGetBooleanIndexedvEXT

glGetBooleanIndexedvEXT

glGetBooleanIndexedEXT

glGetTransformFeedbackVaryingEXT

glGetIntegerIndexedvEXT