glbindtransformfeedback(3g) [debian man page]

GLBINDTRANSFORMFEEDB(3G)					  [FIXME: manual]					  GLBINDTRANSFORMFEEDB(3G)

NAME

       glBindTransformFeedback - bind a transform feedback object

C SPECIFICATION

       void glBindTransformFeedback(GLenum target, GLuint id);

PARAMETERS

       target
	   Specifies the target to which to bind the transform feedback object id.  target must be GL_TRANSFORM_FEEDBACK.

       id
	   Specifies the name of a transform feedback object reserved by glGenTransformFeedbacks().

DESCRIPTION

       glBindTransformFeedback binds the transform feedback object with name id to the current GL state.  id must be a name previously returned
       from a call to glGenTransformFeedbacks(). If id has not previously been bound, a new transform feedback object with name id and initialized
       with with the default transform state vector is created.

       In the initial state, a default transform feedback object is bound and treated as a transform feedback object with a name of zero. If the
       name zero is subsequently bound, the default transform feedback object is again bound to the GL state.

       While a transform feedback buffer object is bound, GL operations on the target to which it is bound affect the bound transform feedback
       object, and queries of the target to which a transform feedback object is bound return state from the bound object. When buffer objects are
       bound for transform feedback, they are attached to the currently bound transform feedback object. Buffer objects are used for trans- form
       feedback only if they are attached to the currently bound transform feedback object.

ERRORS

       GL_INVALID_ENUM is generated if target is not GL_TRANSFORM_FEEDBACK.

       GL_INVALID_OPERATION is generated if the transform feedback operation is active on the currently bound transform feedback object, and that
       operation is not paused.

       GL_INVALID_OPERATION is generated if id is not zero or the name of a transform feedback object returned from a previous call to
       glGenTransformFeedbacks(), or if such a name has been deleted by glDeleteTransformFeedbacks().

ASSOCIATED GETS

       glGet() with argument GL_TRANSFORM_FEEDBACK_BINDING

SEE ALSO

       glGenTransformFeedbacks(), glDeleteTransformFeedbacks(), glIsTransformFeedback(), glBeginTransformFeedback(), glPauseTransformFeedback(),
       glResumeTransformFeedback(), glEndTransformFeedback()

COPYRIGHT

       Copyright (C) 2010 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/.

[FIXME: source] 						    05/30/2012						  GLBINDTRANSFORMFEEDB(3G)

GLDRAWTRANSFORMFEEDB(3G)					  [FIXME: manual]					  GLDRAWTRANSFORMFEEDB(3G)

NAME

       glDrawTransformFeedbackStreamInstanced - render multiple instances of primitives using a count derived from a specifed stream of a
       transform feedback object

C SPECIFICATION

       void glDrawTransformFeedbackStreamInstanced(GLenum mode, GLuint id, GLuint stream, GLsizei primcount);

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.

       primcount
	   Specifies the number of instances of the geometry to render.

DESCRIPTION

       glDrawTransformFeedbackStreamInstanced draws multiple copies of a range of 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
       glDrawTransformFeedbackStreamInstanced is equivalent to calling glDrawArraysInstanced() with mode and primcount 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 glDrawTransformFeedbackInstanced() is equivalent to calling glDrawTransformFeedbackStreamInstanced 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.

SEE ALSO

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

COPYRIGHT

       Copyright (C) 2010-2011 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/.

[FIXME: source] 						    05/30/2012						  GLDRAWTRANSFORMFEEDB(3G)