Index for Section 3G

Alphabetical listing for G

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glPassThrough(3G)
NAME
  glPassThrough - place a marker in the feedback buffer

SYNOPSIS
  void glPassThrough(
	  GLfloat token );

PARAMETERS
  token
      Specifies a marker value to be placed in the feedback buffer following
      a GL_PASS_THROUGH_TOKEN.

DESCRIPTION
  Feedback is a GL render mode. The mode is selected by calling
  glRenderMode() with GL_FEEDBACK. When the GL is in feedback mode, no pixels
  are produced by rasterization. Instead, information about primitives that
  would have been rasterized is fed back to the application using the GL. See
  the glFeedbackBuffer() reference page for a description of the feedback
  buffer and the values in it.

  glPassThrough() inserts a user-defined marker in the feedback buffer when
  it is executed in feedback mode.  token is returned as if it were a
  primitive; it is indicated with its own unique identifying value:
  GL_PASS_THROUGH_TOKEN.  The order of glPassThrough() commands with respect
  to the specification of graphics primitives is maintained.

NOTES
  glPassThrough() is ignored if the GL is not in feedback mode.

ERRORS
  GL_INVALID_OPERATION is generated if glPassThrough() is executed between
  the execution of glBegin() and the corresponding execution of glEnd().

ASSOCIATED GETS
  glGet() with argument GL_RENDER_MODE

SEE ALSO
  glFeedbackBuffer(3), glRenderMode(3)

Index for Section 3G

Alphabetical listing for G

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