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Diffstat (limited to 'nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/gettexgen.gl')
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diff --git a/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/gettexgen.gl b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/gettexgen.gl new file mode 100644 index 000000000..b5d2c6e75 --- /dev/null +++ b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/gettexgen.gl @@ -0,0 +1,105 @@ +_C_ License Applicability. Except to the extent portions of this file are +_C_ made subject to an alternative license as permitted in the SGI Free +_C_ Software License B, Version 1.1 (the "License"), the contents of this +_C_ file are subject only to the provisions of the License. You may not use +_C_ this file except in compliance with the License. You may obtain a copy +_C_ of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 +_C_ Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: +_C_ +_C_ http://oss.sgi.com/projects/FreeB +_C_ +_C_ Note that, as provided in the License, the Software is distributed on an +_C_ "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS +_C_ DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND +_C_ CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A +_C_ PARTICULAR PURPOSE, AND NON-INFRINGEMENT. +_C_ +_C_ Original Code. The Original Code is: OpenGL Sample Implementation, +_C_ Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, +_C_ Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. +_C_ Copyright in any portions created by third parties is as indicated +_C_ elsewhere herein. All Rights Reserved. +_C_ +_C_ Additional Notice Provisions: The application programming interfaces +_C_ established by SGI in conjunction with the Original Code are The +_C_ OpenGL(R) Graphics System: A Specification (Version 1.2.1), released +_C_ April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version +_C_ 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X +_C_ Window System(R) (Version 1.3), released October 19, 1998. This software +_C_ was created using the OpenGL(R) version 1.2.1 Sample Implementation +_C_ published by SGI, but has not been independently verified as being +_C_ compliant with the OpenGL(R) version 1.2.1 Specification. +_C_ +_C_ The first character in this file must be an '_'! +_C_ Anything on a line after _C_ is ignored +_define(_filters,eqn)_C_ +_C_ eqn is automatically replaced with neqn for nroff +_header(GetTexGen,return texture coordinate generation parameters) +_names(GetTexGen,[dfi]v) +.EQ +delim $$ +.EN +.SH PARAMETERS +_phead(_param1) +Specifies a texture coordinate. +Must be +_const(S), +_const(T), +_const(R), or +_const(Q). +_phead(_param2) +Specifies the symbolic name of the value(s) to be returned. +Must be either _const(TEXTURE_GEN_MODE) +or the name of one of the texture generation plane equations: +_const(OBJECT_PLANE) or _const(EYE_PLANE). +_phead(_param3) +Returns the requested data. +.SH DESCRIPTION +_cmnd returns in _param3 selected parameters of a texture coordinate +generation function that was specified using _cmnd(TexGen). +_param1 names one of the (\f2s\fP, \f2t\fP, \f2r\fP, \f2q\fP) +texture coordinates, +using the symbolic constant +_const(S), +_const(T), +_const(R), or +_const(Q). +.P +_param2 specifies one of three symbolic names: +.TP 28 +_const(TEXTURE_GEN_MODE) +_param3 returns the single-valued texture generation function, +a symbolic constant. The initial value is _const(EYE_LINEAR). +.TP +_const(OBJECT_PLANE) +_param3 returns the four plane equation coefficients that specify +object linear-coordinate generation. +Integer values, when requested, +are mapped directly from the internal floating-point representation. +.BP +.TP +_const(EYE_PLANE) +_param3 returns the four plane equation coefficients that specify +eye linear-coordinate generation. +Integer values, +when requested, +are mapped directly from the internal floating-point representation. +The returned values are those maintained in eye coordinates. +They are not equal to the values specified using _cmnd(TexGen), +unless the modelview matrix was identity when _cmnd(TexGen) was called. +.SH NOTES +If an error is generated, +no change is made to the contents of _param3. +.P +When the _arbstring(multitexture) extension is supported, _cmnd returns +the texture coordinate generation parameters for the active texture unit. +.SH ERRORS +_const(INVALID_ENUM) is generated if _param1 or _param2 is not an +accepted value. +.P +_const(INVALID_OPERATION) is generated if _cmnd +is executed between the execution of _cmnd(Begin) +and the corresponding execution of _cmnd(End). +.SH SEE ALSO +_cmnd(ActiveTextureARB), +_cmnd(TexGen) |