NAME

       glDrawTransformFeedbackStream - render primitives using a count derived from a specifed stream of a
       transform feedback object

C SPECIFICATION

       void glDrawTransformFeedbackStream(GLenum mode, GLuint id, GLuint stream);

PARAMETERS

       mode
           Specifies what kind of primitives to render. Symbolic constants GL_POINTS, GL_LINE_STRIP,
           GL_LINE_LOOP, GL_LINES, GL_LINE_STRIP_ADJACENCY, GL_LINES_ADJACENCY, GL_TRIANGLE_STRIP,
           GL_TRIANGLE_FAN, GL_TRIANGLES, GL_TRIANGLE_STRIP_ADJACENCY, GL_TRIANGLES_ADJACENCY, and GL_PATCHES
           are accepted.

       id
           Specifies the name of a transform feedback object from which to retrieve a primitive count.

       stream
           Specifies the index of the transform feedback stream from which to retrieve a primitive count.

DESCRIPTION

       glDrawTransformFeedbackStream draws primitives of a type specified by mode using a count retrieved from
       the transform feedback stream specified by stream of the transform feedback object specified by id.
       Calling glDrawTransformFeedbackStream is equivalent to calling glDrawArrays() with mode as specified,
       first set to zero, and count set to the number of vertices captured on vertex stream stream the last time
       transform feedback was active on the transform feedback object named by id.

       Calling glDrawTransformFeedback() is equivalent to calling glDrawTransformFeedbackStream with stream set
       to zero.

ERRORS

       GL_INVALID_ENUM is generated if mode is not an accepted value.

       GL_INVALID_VALUE is generated if id is not the name of a transform feedback object.

       GL_INVALID_VALUE is generated if stream is greater than or equal to the value of GL_MAX_VERTEX_STREAMS.

       GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to an enabled array and the
       buffer object's data store is currently mapped.

       GL_INVALID_OPERATION is generated if a geometry shader is active and mode is incompatible with the input
       primitive type of the geometry shader in the currently installed program object.

       GL_INVALID_OPERATION is generated if mode is GL_PATCHES and no tessellation control shader is active.

       GL_INVALID_OPERATION is generated if

       glEndTransformFeedback has never been called while the transform feedback object named by id was bound.

VERSION SUPPORT

       ┌──────────────────────────────┬───────────────────────────────────────────────────────────────────────┐
       │                              │                OpenGL Version                                         │
       ├──────────────────────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
       │Function                      │ 2.0 │ 2.1 │ 3.0 │ 3.1 │ 3.2 │ 3.3 │ 4.0 │ 4.1 │ 4.2 │ 4.3 │ 4.4 │ 4.5 │
       │/                             │     │     │     │     │     │     │     │     │     │     │     │     │
       │Feature                       │     │     │     │     │     │     │     │     │     │     │     │     │
       │Name                          │     │     │     │     │     │     │     │     │     │     │     │     │
       ├──────────────────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
       │glDrawTransformFeedbackStream │  -  │  -  │  -  │  -  │  -  │  -  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
       └──────────────────────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘

SEE ALSO

       glDrawArrays(), glDrawArraysInstanced(), glDrawElements(), glDrawRangeElements(),
       glDrawTransformFeedback()

COPYRIGHT

       Copyright © 2010-2014 Khronos Group. This material may be distributed subject to the terms and conditions
       set forth in the Open Publication License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

COPYRIGHT

       Copyright © 2010-2014 Khronos Group.

[FIXME: source]                                    01/03/2018                           GLDRAWTRANSFORMFEEDB(3G)