Package org.lwjgl.opengl

Class NVTransformFeedback

java.lang.Object

org.lwjgl.opengl.NVTransformFeedback

public class NVTransformFeedback
extends java.lang.Object

Native bindings to the NV_transform_feedback extension.

This extension provides a new mode to the GL, called transform feedback, which records vertex attributes of the primitives 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 program or shader is active, the primitives recorded are those emitted by the geometry program. Otherwise, transform feedback captures primitives whose vertex are transformed by a vertex program or shader, or by fixed-function vertex processing. In either case, the primitives captured are those generated prior to clipping. Transform feedback mode is capable of capturing transformed vertex data generated by fixed-function vertex processing, outputs from assembly vertex or geometry programs, or 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 program constant data (via the NV_parameter_buffer_object or EXT_bindable_uniform extension), 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 1.5.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GL_ACTIVE_VARYING_MAX_LENGTH_NV GL_ACTIVE_VARYINGS_NV Accepted by the pname parameter of GetProgramiv.
static int	GL_BACK_PRIMARY_COLOR_NV GL_BACK_SECONDARY_COLOR_NV GL_CLIP_DISTANCE_NV GL_GENERIC_ATTRIB_NV Accepted by the attribs parameter of TransformFeedbackAttribsNV.
static int	GL_INTERLEAVED_ATTRIBS_NV Accepted by the bufferMode parameter of TransformFeedbackAttribsNV and TransformFeedbackVaryingsNV.
static int	GL_LAYER_NV Accepted by the attribs parameter of TransformFeedbackAttribsNV.
static int	GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_NV GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_NV GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_NV Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
static int	GL_PRIMITIVE_ID_NV Accepted by the attribs parameter of TransformFeedbackAttribsNV.
static int	GL_PRIMITIVES_GENERATED_NV Accepted by the target parameter of BeginQuery, EndQuery, and GetQueryiv.
static int	GL_RASTERIZER_DISCARD_NV Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
static int	GL_SECONDARY_COLOR_NV Accepted by the attribs parameter of TransformFeedbackAttribsNV.
static int	GL_SEPARATE_ATTRIBS_NV Accepted by the bufferMode parameter of TransformFeedbackAttribsNV and TransformFeedbackVaryingsNV.
static int	GL_TEXTURE_COORD_NV Accepted by the attribs parameter of TransformFeedbackAttribsNV.
static int	GL_TRANSFORM_FEEDBACK_ATTRIBS_NV Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
static int	GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_NV 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_MODE_NV Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, GetFloatv, and GetProgramiv.
static int	GL_TRANSFORM_FEEDBACK_BUFFER_NV Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferPointerv, BindBufferRangeNV, BindBufferOffsetNV and BindBufferBaseNV.
static int	GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_NV GL_TRANSFORM_FEEDBACK_BUFFER_START_NV Accepted by the param parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.
static int	GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_NV Accepted by the target parameter of BeginQuery, EndQuery, and GetQueryiv.
static int	GL_TRANSFORM_FEEDBACK_RECORD_NV Accepted by the param parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.
static int	GL_TRANSFORM_FEEDBACK_VARYINGS_NV Accepted by the pname parameter of GetProgramiv.
static int	GL_VERTEX_ID_NV Accepted by the attribs parameter of TransformFeedbackAttribsNV.

Method Summary

Modifier and Type	Method and Description
static void	glActiveVaryingNV(int program, java.nio.ByteBuffer name)
static void	glActiveVaryingNV(int program, java.lang.CharSequence name)
static void	glBeginTransformFeedbackNV(int primitiveMode)
static void	glBindBufferBaseNV(int target, int index, int buffer)
static void	glBindBufferOffsetNV(int target, int index, int buffer, long offset)
static void	glBindBufferRangeNV(int target, int index, int buffer, long offset, long size)
static void	glEndTransformFeedbackNV()
static void	glGetActiveVaryingNV(int program, int index, int[] length, int[] size, int[] type, java.nio.ByteBuffer name) Array version of: GetActiveVaryingNV
static void	glGetActiveVaryingNV(int program, int index, java.nio.IntBuffer length, java.nio.IntBuffer size, java.nio.IntBuffer type, java.nio.ByteBuffer name)
static int	glGetTransformFeedbackVaryingNV(int program, int index)
static void	glGetTransformFeedbackVaryingNV(int program, int index, int[] location) Array version of: GetTransformFeedbackVaryingNV
static void	glGetTransformFeedbackVaryingNV(int program, int index, java.nio.IntBuffer location)
static int	glGetVaryingLocationNV(int program, java.nio.ByteBuffer name)
static int	glGetVaryingLocationNV(int program, java.lang.CharSequence name)
static void	glTransformFeedbackAttribsNV(int[] attribs, int bufferMode) Array version of: TransformFeedbackAttribsNV
static void	glTransformFeedbackAttribsNV(java.nio.IntBuffer attribs, int bufferMode)
static void	glTransformFeedbackStreamAttribsNV(int[] attribs, int[] bufstreams, int bufferMode) Array version of: TransformFeedbackStreamAttribsNV
static void	glTransformFeedbackStreamAttribsNV(java.nio.IntBuffer attribs, java.nio.IntBuffer bufstreams, int bufferMode)
static void	glTransformFeedbackVaryingsNV(int program, int[] locations, int bufferMode) Array version of: TransformFeedbackVaryingsNV
static void	glTransformFeedbackVaryingsNV(int program, java.nio.IntBuffer locations, int bufferMode)

Methods inherited from class java.lang.Object

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

Field Detail

GL_TRANSFORM_FEEDBACK_BUFFER_NV

Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferPointerv, BindBufferRangeNV, BindBufferOffsetNV and BindBufferBaseNV.

GL_TRANSFORM_FEEDBACK_BUFFER_START_NV, GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_NV, GL_TRANSFORM_FEEDBACK_RECORD_NV

Accepted by the param parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.

GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_NV

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

GL_INTERLEAVED_ATTRIBS_NV, GL_SEPARATE_ATTRIBS_NV

Accepted by the bufferMode parameter of TransformFeedbackAttribsNV and TransformFeedbackVaryingsNV.

GL_PRIMITIVES_GENERATED_NV, GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_NV

Accepted by the target parameter of BeginQuery, EndQuery, and GetQueryiv.

GL_RASTERIZER_DISCARD_NV

Accepted by the cap parameter of Enable, Disable, and IsEnabled, and by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.

GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_NV, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_NV, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_NV, GL_TRANSFORM_FEEDBACK_ATTRIBS_NV

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

GL_ACTIVE_VARYINGS_NV, GL_ACTIVE_VARYING_MAX_LENGTH_NV, GL_TRANSFORM_FEEDBACK_VARYINGS_NV

Accepted by the pname parameter of GetProgramiv.

GL_TRANSFORM_FEEDBACK_BUFFER_MODE_NV

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

GL_BACK_PRIMARY_COLOR_NV, GL_BACK_SECONDARY_COLOR_NV, GL_TEXTURE_COORD_NV, GL_CLIP_DISTANCE_NV, GL_VERTEX_ID_NV, GL_PRIMITIVE_ID_NV, GL_GENERIC_ATTRIB_NV, GL_SECONDARY_COLOR_NV, GL_LAYER_NV

Accepted by the attribs parameter of TransformFeedbackAttribsNV.

Method Detail

glBeginTransformFeedbackNV

public static void glBeginTransformFeedbackNV(int primitiveMode)

glEndTransformFeedbackNV

public static void glEndTransformFeedbackNV()

glTransformFeedbackAttribsNV

public static void glTransformFeedbackAttribsNV(java.nio.IntBuffer attribs,
                                                int bufferMode)

glBindBufferRangeNV

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

glBindBufferOffsetNV

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

glBindBufferBaseNV

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

glTransformFeedbackVaryingsNV

public static void glTransformFeedbackVaryingsNV(int program,
                                                 java.nio.IntBuffer locations,
                                                 int bufferMode)

glActiveVaryingNV

public static void glActiveVaryingNV(int program,
                                     java.nio.ByteBuffer name)

glActiveVaryingNV

public static void glActiveVaryingNV(int program,
                                     java.lang.CharSequence name)

glGetVaryingLocationNV

public static int glGetVaryingLocationNV(int program,
                                         java.nio.ByteBuffer name)

glGetVaryingLocationNV

public static int glGetVaryingLocationNV(int program,
                                         java.lang.CharSequence name)

glGetActiveVaryingNV

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

glGetTransformFeedbackVaryingNV

public static void glGetTransformFeedbackVaryingNV(int program,
                                                   int index,
                                                   java.nio.IntBuffer location)

glGetTransformFeedbackVaryingNV

public static int glGetTransformFeedbackVaryingNV(int program,
                                                  int index)

glTransformFeedbackStreamAttribsNV

public static void glTransformFeedbackStreamAttribsNV(java.nio.IntBuffer attribs,
                                                      java.nio.IntBuffer bufstreams,
                                                      int bufferMode)

glTransformFeedbackAttribsNV

public static void glTransformFeedbackAttribsNV(int[] attribs,
                                                int bufferMode)

Array version of: TransformFeedbackAttribsNV

glTransformFeedbackVaryingsNV

public static void glTransformFeedbackVaryingsNV(int program,
                                                 int[] locations,
                                                 int bufferMode)

Array version of: TransformFeedbackVaryingsNV

glGetActiveVaryingNV

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

Array version of: GetActiveVaryingNV

glGetTransformFeedbackVaryingNV

public static void glGetTransformFeedbackVaryingNV(int program,
                                                   int index,
                                                   int[] location)

Array version of: GetTransformFeedbackVaryingNV

glTransformFeedbackStreamAttribsNV

public static void glTransformFeedbackStreamAttribsNV(int[] attribs,
                                                      int[] bufstreams,
                                                      int bufferMode)

Array version of: TransformFeedbackStreamAttribsNV