Package org.lwjgl.opengl

Class NVTransformFeedback

java.lang.Object
org.lwjgl.opengl.NVTransformFeedback
public class NVTransformFeedback extends 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 Details

    • GL_TRANSFORM_FEEDBACK_BUFFER_NV

      public static final int GL_TRANSFORM_FEEDBACK_BUFFER_NV
      Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferPointerv, BindBufferRangeNV, BindBufferOffsetNV and BindBufferBaseNV.
      See Also:

    • GL_TRANSFORM_FEEDBACK_BUFFER_START_NV

      public static final int GL_TRANSFORM_FEEDBACK_BUFFER_START_NV
      Accepted by the param parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.
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    • GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_NV

      public static final int GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_NV
      Accepted by the param parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.
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    • GL_TRANSFORM_FEEDBACK_RECORD_NV

      public static final int GL_TRANSFORM_FEEDBACK_RECORD_NV
      Accepted by the param parameter of GetIntegerIndexedvEXT and GetBooleanIndexedvEXT.
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    • GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_NV

      public static final 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.
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    • GL_INTERLEAVED_ATTRIBS_NV

      public static final int GL_INTERLEAVED_ATTRIBS_NV
      Accepted by the bufferMode parameter of TransformFeedbackAttribsNV and TransformFeedbackVaryingsNV.
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    • GL_SEPARATE_ATTRIBS_NV

      public static final int GL_SEPARATE_ATTRIBS_NV
      Accepted by the bufferMode parameter of TransformFeedbackAttribsNV and TransformFeedbackVaryingsNV.
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    • GL_PRIMITIVES_GENERATED_NV

      public static final int GL_PRIMITIVES_GENERATED_NV
      Accepted by the target parameter of BeginQuery, EndQuery, and GetQueryiv.
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    • GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_NV

      public static final int GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_NV
      Accepted by the target parameter of BeginQuery, EndQuery, and GetQueryiv.
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    • GL_RASTERIZER_DISCARD_NV

      public static final 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.
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    • GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_NV

      public static final int GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_NV
      Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
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    • GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_NV

      public static final int GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_NV
      Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
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    • GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_NV

      public static final int GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_NV
      Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
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    • GL_TRANSFORM_FEEDBACK_ATTRIBS_NV

      public static final int GL_TRANSFORM_FEEDBACK_ATTRIBS_NV
      Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, and GetFloatv.
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    • GL_ACTIVE_VARYINGS_NV

      public static final int GL_ACTIVE_VARYINGS_NV
      Accepted by the pname parameter of GetProgramiv.
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    • GL_ACTIVE_VARYING_MAX_LENGTH_NV

      public static final int GL_ACTIVE_VARYING_MAX_LENGTH_NV
      Accepted by the pname parameter of GetProgramiv.
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    • GL_TRANSFORM_FEEDBACK_VARYINGS_NV

      public static final int GL_TRANSFORM_FEEDBACK_VARYINGS_NV
      Accepted by the pname parameter of GetProgramiv.
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    • GL_TRANSFORM_FEEDBACK_BUFFER_MODE_NV

      public static final int GL_TRANSFORM_FEEDBACK_BUFFER_MODE_NV
      Accepted by the pname parameter of GetBooleanv, GetDoublev, GetIntegerv, GetFloatv, and GetProgramiv.
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    • GL_BACK_PRIMARY_COLOR_NV

      public static final int GL_BACK_PRIMARY_COLOR_NV
      Accepted by the attribs parameter of TransformFeedbackAttribsNV.
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    • GL_BACK_SECONDARY_COLOR_NV

      public static final int GL_BACK_SECONDARY_COLOR_NV
      Accepted by the attribs parameter of TransformFeedbackAttribsNV.
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    • GL_TEXTURE_COORD_NV

      public static final int GL_TEXTURE_COORD_NV
      Accepted by the attribs parameter of TransformFeedbackAttribsNV.
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    • GL_CLIP_DISTANCE_NV

      public static final int GL_CLIP_DISTANCE_NV
      Accepted by the attribs parameter of TransformFeedbackAttribsNV.
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    • GL_VERTEX_ID_NV

      public static final int GL_VERTEX_ID_NV
      Accepted by the attribs parameter of TransformFeedbackAttribsNV.
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    • GL_PRIMITIVE_ID_NV

      public static final int GL_PRIMITIVE_ID_NV
      Accepted by the attribs parameter of TransformFeedbackAttribsNV.
      See Also:

    • GL_GENERIC_ATTRIB_NV

      public static final int GL_GENERIC_ATTRIB_NV
      Accepted by the attribs parameter of TransformFeedbackAttribsNV.
      See Also:

    • GL_SECONDARY_COLOR_NV

      public static final int GL_SECONDARY_COLOR_NV
      Accepted by the attribs parameter of TransformFeedbackAttribsNV.
      See Also:

    • GL_LAYER_NV

      public static final int GL_LAYER_NV
      Accepted by the attribs parameter of TransformFeedbackAttribsNV.
      See Also:

  • Method Details

    • glBeginTransformFeedbackNV

      public static void glBeginTransformFeedbackNV(int primitiveMode)

    • glEndTransformFeedbackNV

      public static void glEndTransformFeedbackNV()

    • nglTransformFeedbackAttribsNV

      public static void nglTransformFeedbackAttribsNV(int count, long attribs, int bufferMode)

    • glTransformFeedbackAttribsNV

      public static void glTransformFeedbackAttribsNV(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)

    • nglTransformFeedbackVaryingsNV

      public static void nglTransformFeedbackVaryingsNV(int program, int count, long locations, int bufferMode)

    • glTransformFeedbackVaryingsNV

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

    • nglActiveVaryingNV

      public static void nglActiveVaryingNV(int program, long name)

    • glActiveVaryingNV

      public static void glActiveVaryingNV(int program, ByteBuffer name)

    • glActiveVaryingNV

      public static void glActiveVaryingNV(int program, CharSequence name)

    • nglGetVaryingLocationNV

      public static int nglGetVaryingLocationNV(int program, long name)

    • glGetVaryingLocationNV

      public static int glGetVaryingLocationNV(int program, ByteBuffer name)

    • glGetVaryingLocationNV

      public static int glGetVaryingLocationNV(int program, CharSequence name)

    • nglGetActiveVaryingNV

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

    • glGetActiveVaryingNV

      public static void glGetActiveVaryingNV(int program, int index, @Nullable IntBuffer length, IntBuffer size, IntBuffer type, ByteBuffer name)

    • nglGetTransformFeedbackVaryingNV

      public static void nglGetTransformFeedbackVaryingNV(int program, int index, long location)

    • glGetTransformFeedbackVaryingNV

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

    • glGetTransformFeedbackVaryingNV

      public static int glGetTransformFeedbackVaryingNV(int program, int index)

    • nglTransformFeedbackStreamAttribsNV

      public static void nglTransformFeedbackStreamAttribsNV(int count, long attribs, int nbuffers, long bufstreams, int bufferMode)

    • glTransformFeedbackStreamAttribsNV

      public static void glTransformFeedbackStreamAttribsNV(IntBuffer attribs, 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, @Nullable int[] length, int[] size, int[] type, 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