Unix/Linux Go Back    


CentOS 7.0 - man page for glpatchparameter (centos section 3G)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


GLPATCHPARAMETER(3G)			  OpenGL Manual 		     GLPATCHPARAMETER(3G)

NAME
       glPatchParameter - specifies the parameters for patch primitives

C SPECIFICATION
       void glPatchParameteri(GLenum pname, GLint value);

       void glPatchParameterfv(GLenum pname, const GLfloat *values);

PARAMETERS
       pname
	   Specifies the name of the parameter to set. The symbolc constants GL_PATCH_VERTICES,
	   GL_PATCH_DEFAULT_OUTER_LEVEL, and GL_PATCH_DEFAULT_INNER_LEVEL are accepted.

       value
	   Specifies the new value for the parameter given by pname.

       values
	   Specifies the address of an array containing the new values for the parameter given by
	   pname.

DESCRIPTION
       glPatchParameter specifies the parameters that will be used for patch primitives.  pname
       specifies the parameter to modify and must be either GL_PATCH_VERTICES,
       GL_PATCH_DEFAULT_OUTER_LEVEL or GL_PATCH_DEFAULT_INNER_LEVEL. For glPatchParameteri, value
       specifies the new value for the parameter specified by pname. For glPatchParameterfv,
       values specifies the address of an array containing the new values for the parameter
       specified by pname.

       When pname is GL_PATCH_VERTICES, value specifies the number of vertices that will be used
       to make up a single patch primitive. Patch primitives are consumed by the tessellation
       control shader (if present) and subsequently used for tessellation. When primitives are
       specified using glDrawArrays() or a similar function, each patch will be made from
       parameter control points, each represented by a vertex taken from the enabeld vertex
       arrays.	parameter must be greater than zero, and less than or equal to the value of
       GL_MAX_PATCH_VERTICES.

       When pname is GL_PATCH_DEFAULT_OUTER_LEVEL or GL_PATCH_DEFAULT_INNER_LEVEL, values
       contains the address of an array contiaining the default outer or inner tessellation
       levels, respectively, to be used when no tessellation control shader is present.

ERRORS
       GL_INVALID_ENUM is generated if pname is not an accepted value.

       GL_INVALID_VALUE is generated if pname is GL_PATCH_VERTICES and value is less than or
       equal to zero, or greater than the value of GL_MAX_PATCH_VERTICES.

SEE ALSO
       glDrawArrays(), glDrawArraysInstanced(), glDrawElements(), glDrawRangeElements(),

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/.

AUTHORS
       opengl.org

opengl.org				    06/10/2014			     GLPATCHPARAMETER(3G)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 12:39 PM.