Query: glindexmask
OS: redhat
Section: 3g
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
GLINDEXMASK(3G) GLINDEXMASK(3G)NAMEglIndexMask - control the writing of individual bits in the color index buffersC SPECIFICATIONvoid glIndexMask( GLuint mask )PARAMETERSmask Specifies a bit mask to enable and disable the writing of individual bits in the color index buffers. Initially, the mask is all 1's.DESCRIPTIONglIndexMask controls the writing of individual bits in the color index buffers. The least significant n bits of mask, where n is the num- ber of bits in a color index buffer, specify a mask. Where a 1 (one) appears in the mask, it's possible to write to the corresponding bit in the color index buffer (or buffers). Where a 0 (zero) appears, the corresponding bit is write-protected. This mask is used only in color index mode, and it affects only the buffers currently selected for writing (see glDrawBuffer). Initially, all bits are enabled for writing.ERRORSGL_INVALID_OPERATION is generated if glIndexMask is executed between the execution of glBegin and the corresponding execution of glEnd.ASSOCIATED GETSglGet with argument GL_INDEX_WRITEMASKSEE ALSOglColorMask(3G), glDepthMask(3G), glDrawBuffer(3G), glIndex(3G), glIndexPointer(3G), glStencilMask(3G) GLINDEXMASK(3G)