glDepthMask

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Enable or disable writing into the depth buffer.

C Specification[edit]

void glDepthMask( GLboolean flag );


Parameters[edit]

flag - Specifies whether the depth buffer is enabled for writing. If flag is GL_FALSE , depth buffer writing is disabled. Otherwise, it is enabled. Initially, depth buffer writing is enabled.


Description[edit]

 glDepthMask specifies whether the depth buffer is enabled for writing. If flag is GL_FALSE , depth buffer writing is disabled. Otherwise, it is enabled. Initially, depth buffer writing is enabled.


Associated Gets[edit]

 glGet with argument GL_DEPTH_WRITEMASK 


Notes[edit]

Even if the depth buffer exists and the depth mask is non-zero, the depth buffer is not updated if the depth test is disabled. In order to unconditionally write to the depth buffer, the depth test should be enabled and set to GL_ALWAYS (see glDepthFunc ).


Version Support[edit]

 glDepthMask  2.0+

See Also[edit]

 glColorMask , glDepthFunc , glDepthRange , glStencilMask 


Copyright[edit]

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