GLPRIORITIZETEXTURES(3G)					   OpenGL Manual					  GLPRIORITIZETEXTURES(3G)

NAME

       glPrioritizeTextures - set texture residence priority

C SPECIFICATION

       void glPrioritizeTextures(GLsizei n, const GLuint * textures, const GLclampf * priorities);

PARAMETERS

       n
	   Specifies the number of textures to be prioritized.

       textures
	   Specifies an array containing the names of the textures to be prioritized.

       priorities
	   Specifies an array containing the texture priorities. A priority given in an element of priorities applies to the texture named by the
	   corresponding element of textures.

DESCRIPTION

       glPrioritizeTextures assigns the n texture priorities given in priorities to the n textures named in textures.

       The GL establishes a ``working set'' of textures that are resident in texture memory. These textures may be bound to a texture target much
       more efficiently than textures that are not resident. By specifying a priority for each texture, glPrioritizeTextures allows applications
       to guide the GL implementation in determining which textures should be resident.

       The priorities given in priorities are clamped to the range 0 1 before they are assigned. 0 indicates the lowest priority; textures with
       priority 0 are least likely to be resident. 1 indicates the highest priority; textures with priority 1 are most likely to be resident.
       However, textures are not guaranteed to be resident until they are used.

       glPrioritizeTextures silently ignores attempts to prioritize texture 0 or any texture name that does not correspond to an existing texture.

       glPrioritizeTextures does not require that any of the textures named by textures be bound to a texture target.  glTexParameter() may also
       be used to set a texture's priority, but only if the texture is currently bound. This is the only way to set the priority of a default
       texture.

NOTES

       glPrioritizeTextures is available only if the GL version is 1.1 or greater.

ERRORS

       GL_INVALID_VALUE is generated if n is negative.

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

ASSOCIATED GETS

       glGetTexParameter() with parameter name GL_TEXTURE_PRIORITY retrieves the priority of a currently bound texture.

SEE ALSO

       glAreTexturesResident(), glBindTexture(), glCopyTexImage1D(), glCopyTexImage2D(), glTexImage1D(), glTexImage2D(), glTexImage3D(),
       glTexParameter()

COPYRIGHT

       Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
       http://oss.sgi.com/projects/FreeB/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014						  GLPRIORITIZETEXTURES(3G)