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Diffstat (limited to 'nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/rendermode.gl')
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diff --git a/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/rendermode.gl b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/rendermode.gl new file mode 100644 index 000000000..52b8b6b37 --- /dev/null +++ b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/rendermode.gl @@ -0,0 +1,124 @@ +_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(RenderMode,set rasterization mode) +_names(RenderMode) +.SH PARAMETERS +_phead(_param1) +Specifies the rasterization mode. +Three values are accepted: +_const(RENDER), +_const(SELECT), and +_const(FEEDBACK). +The initial value is _const(RENDER). +.SH DESCRIPTION +_cmnd sets the rasterization mode. +It takes one argument, +_param1, +which can assume one of three predefined values: +.TP 16 +_const(RENDER) +Render mode. Primitives are rasterized, +producing pixel fragments, +which are written into the frame buffer. +This is the normal mode +and also the default mode. +.TP +_const(SELECT) +Selection mode. +No pixel fragments are produced, +and no change to the frame buffer contents is made. +Instead, +a record of the names of primitives that would have been drawn +if the render mode had been _const(RENDER) is returned in a select buffer, +which must be created (see _cmnd(SelectBuffer)) before selection mode +is entered. +.TP +_const(FEEDBACK) +Feedback mode. +No pixel fragments are produced, +and no change to the frame buffer contents is made. +Instead, +the coordinates and attributes of vertices that would have been drawn +if the render mode had been _const(RENDER) is returned in a feedback buffer, +which must be created (see _cmnd(FeedbackBuffer)) before feedback mode +is entered. +.P +The return value of _cmnd is determined by the render mode at the time +_cmnd is called, +rather than by _param1. +The values returned for the three render modes are as follows: +.TP 16 +_const(RENDER) +0. +.TP +_const(SELECT) +The number of hit records transferred to the select buffer. +.TP +_const(FEEDBACK) +The number of values (not vertices) transferred to the feedback buffer. +.P +See the _cmnd(SelectBuffer) and _cmnd(FeedbackBuffer) reference pages for +more details concerning selection and feedback operation. +.SH NOTES +If an error is generated, +_cmnd returns 0 regardless of the current render mode. +.SH ERRORS +_const(INVALID_ENUM) is generated if _param1 is not one of the three +accepted values. +.P +_const(INVALID_OPERATION) is generated if _cmnd(SelectBuffer) is called +while the render mode is _const(SELECT), +or if _cmnd is called with argument _const(SELECT) before +_cmnd(SelectBuffer) is called at least once. +.P +_const(INVALID_OPERATION) is generated if _cmnd(FeedbackBuffer) is called +while the render mode is _const(FEEDBACK), +or if _cmnd is called with argument _const(FEEDBACK) before +_cmnd(FeedbackBuffer) is called at least once. +.P +_const(INVALID_OPERATION) is generated if _cmnd +is executed between the execution of _cmnd(Begin) +and the corresponding execution of _cmnd(End). +.SH ASSOCIATED GETS +_cmnd(Get) with argument _const(RENDER_MODE) +.SH SEE ALSO +_cmnd(FeedbackBuffer), +_cmnd(InitNames), +_cmnd(LoadName), +_cmnd(PassThrough), +_cmnd(PushName), +_cmnd(SelectBuffer) |