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tltbin(3G)							    tltbin(3G)

NAME
     tltbin -  selects a texture look up table

FORTRAN SPECIFICATION
     subroutine texbin(target, index)
     integer*4 target, index

PARAMETERS
     target   expects the texture resource to which the texture function
	      definition is to be bound.  There is one appropriate resource
	      TLTLT0.

     index    expects the name of the texture function that is being bound.
	      Name is the index passed to texdef when the texture function was
	      defined.

DESCRIPTION
     Texture coordinates, s,t,u may be specified at geometry vertices,
     similarly to color, depth, and vertex normals.  The texture coordinates
     are interpolated from the values specified at the vertices for each
     screen pixel touched by the geometry.  A texture function maps the
     texture coordinates s,t, or s,t,u, corresponding to a screen pixel into
     nc values, called texture function outputs, using an image and a set of
     properties. The texture function outputs may be translated with a texture
     look-up table.  The texture function outputs are used by the texture
     environment function to modify the screen pixel color.

     texdef2d and texdef3d define a texture function and texbind selects which
     texture function definition to use.  The texture environment function is
     defined by tevdef and selected by tevbind. The texture look-up table is
     defined by tlutdef and selected by tlutbind. The texture coordinates are
     specified with the t family of commands.

     By default texture look up table  definition 0 is bound to TLTLT0.
     Texture look-up table use is enabled when a texture function definition
     other than 0 is bound to TXTEXT, and a texture environment definition
     other than 0 is bound to TVENV0 and a texture look up table definition
     other than 0 is bound to TLTLT0.  (See tevbin.)

SEE ALSO
     t, tevbind, tevdef, texdef

NOTES
     IRIS-4D G, GT, and GTX models, and the Personal Iris, do not support
     texture mapping.  texbin is ignored by these machines.  The Iris Indy,
     Indigo Entry, and XL support texture mapping except for lines.  Use
     getgde to determine whether texture mapping is supported.

     texbin cannot be used while mmode is MSINGL.

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