GLCLEAR - Online Linux Manual PageSection : 3G
Updated : 01/20/2022
Source : [FIXME: source]
Note : [FIXME: manual]

NAMEglClear − clear buffers to preset values

C SPECIFICATIONvoid glClear(GLbitfield mask);

PARAMETERSmask Bitwise OR of masks that indicate the buffers to be cleared​. The three masks are GL_COLOR_BUFFER_BIT, GL_DEPTH_BUFFER_BIT, and GL_STENCIL_BUFFER_BIT​.

DESCRIPTIONglClear sets the bitplane area of the window to values previously selected by glClearColor, glClearDepth, and glClearStencil​. Multiple color buffers can be cleared simultaneously by selecting more than one buffer at a time using glDrawBuffer()​. The pixel ownership test, the scissor test, dithering, and the buffer writemasks affect the operation of glClear​. The scissor box bounds the cleared region​. Alpha function, blend function, logical operation, stenciling, texture mapping, and depth−buffering are ignored by glClear​. glClear takes a single argument that is the bitwise OR of several values indicating which buffer is to be cleared​. The values are as follows: GL_COLOR_BUFFER_BIT Indicates the buffers currently enabled for color writing​. GL_DEPTH_BUFFER_BIT Indicates the depth buffer​. GL_STENCIL_BUFFER_BIT Indicates the stencil buffer​. The value to which each buffer is cleared depends on the setting of the clear value for that buffer​.

NOTESIf a buffer is not present, then a glClear directed at that buffer has no effect​.

ERRORSGL_INVALID_VALUE is generated if any bit other than the three defined bits is set in mask​.

ASSOCIATED GETSglGet() with argument GL_DEPTH_CLEAR_VALUE glGet() with argument GL_COLOR_CLEAR_VALUE glGet() with argument GL_STENCIL_CLEAR_VALUE

VERSION SUPPORT OpenGL Version Function / Feature Name 2​.0 none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'> 2​.1 3​.0 3​.1 3​.2 3​.3 4​.0 4​.1 4​.2 4​.3 4​.4 4​.5 glClear

SEE ALSOglClearColor, glClearDepth, glClearStencil, glColorMask(), glDepthMask(), glDrawBuffer(), glScissor(), glStencilMask()

COPYRIGHTCopyright © 1991−2006 Silicon Graphics, Inc​. Copyright © 2010−2014 Khronos Group​. This document is licensed under the SGI Free Software B License​. For details, see http://oss​.sgi​.com/projects/FreeB/​.

COPYRIGHT
Copyright © 1991-2006 Silicon Graphics, Inc.
Copyright © 2010-2014 Khronos Group
0
Johanes Gumabo
Data Size   :   17,397 byte
man-glClear.3GBuild   :   2024-12-05, 20:55   :  
Visitor Screen   :   x
Visitor Counter ( page / site )   :   5 / 202,625
Visitor ID   :     :  
Visitor IP   :   18.118.30.153   :  
Visitor Provider   :   AMAZON-02   :  
Provider Position ( lat x lon )   :   39.962500 x -83.006100   :   x
Provider Accuracy Radius ( km )   :   1000   :  
Provider City   :   Columbus   :  
Provider Province   :   Ohio ,   :   ,
Provider Country   :   United States   :  
Provider Continent   :   North America   :  
Visitor Recorder   :   Version   :  
Visitor Recorder   :   Library   :  
Online Linux Manual Page   :   Version   :   Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page   :   Library   :   lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Online Linux Manual Page   :   Library   :   lib_m - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Data Base   :   Version   :   Online Linux Manual Page Database - 24.04.13 - march=x86-64 - mtune=generic - fedora-38
Data Base   :   Library   :   lib_c - 23.02.07 - march=x86-64 - mtune=generic - fedora.36

Very long time ago, I have the best tutor, Wenzel Svojanovsky . If someone knows the email address of Wenzel Svojanovsky , please send an email to johanes_gumabo@yahoo.co.id .
If error, please print screen and send to johanes_gumabo@yahoo.co.id
Under development. Support me via PayPal.