GlStencilMask: Difference between revisions

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(Created page with "'''_glStencilMask:''' control the front and back writing of individual bits in the stencil planes {{PageSyntax}} SUB _glStencilMask (BYVAL mask AS _UNSIGNED LONG) void '''_glStencilMask'''(GLuint {{Parameter|mask}}); ; mask : Specifies a bit mask to enable and disable writing of individual bits in the stencil planes. Initially, the mask is all 1's. {{PageDescription}} '''_glStencilMask''' controls the writing of individual bits in the stencil planes. The leas...")
 
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{{PageCopyright}}
{{PageCopyright}}


Copyright 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/ http://oss.sgi.com/projects/FreeB/].
 
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Revision as of 13:07, 5 May 2022

_glStencilMask: control the front and back writing of individual bits in the stencil planes


Syntax

 SUB _glStencilMask (BYVAL mask AS _UNSIGNED LONG)
 void _glStencilMask(GLuint mask);


mask
Specifies a bit mask to enable and disable writing of individual bits in the stencil planes. Initially, the mask is all 1's.


Description

_glStencilMask controls the writing of individual bits in the stencil planes. The least significant n bits of mask, where n is the number of bits in the stencil buffer, specify a mask. Where a 1 appears in the mask, it's possible to write to the corresponding bit in the stencil buffer. Where a 0 appears, the corresponding bit is write-protected. Initially, all bits are enabled for writing.

There can be two separate mask writemasks; one affects back-facing polygons, and the other affects front-facing polygons as well as other non-polygon primitives. Template:KW sets both front and back stencil writemasks to the same values. Use Template:KW to set front and back stencil writemasks to different values.


Template:PageNotes

Template:KW is the same as calling Template:KW with face set to Template:KW.


Template:PageUseWith

Template:KW with argument Template:KW, Template:KW, or Template:KW


See also

SUB _GL Template:KW, Template:KW, Template:KW, Template:KW, Template:KW, Template:KW, Template:KW, Template:KW, Template:KW


Template:PageCopyright



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