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GLPUSHATTRIB(3G)			  OpenGL Manual 			 GLPUSHATTRIB(3G)

NAME
       glPushAttrib - push and pop the server attribute stack

C SPECIFICATION
       void glPushAttrib(GLbitfield mask);

PARAMETERS
       mask
	   Specifies a mask that indicates which attributes to save. Values for mask are listed
	   below.

C SPECIFICATION
       void glPopAttrib(void);

DESCRIPTION
       glPushAttrib takes one argument, a mask that indicates which groups of state variables to
       save on the attribute stack. Symbolic constants are used to set bits in the mask.  mask is
       typically constructed by specifying the bitwise-or of several of these constants together.
       The special mask GL_ALL_ATTRIB_BITS can be used to save all stackable states.

       The symbolic mask constants and their associated GL state are as follows (the second
       column lists which attributes are saved):

       +-----------------------+----------------------------------+
       |GL_ACCUM_BUFFER_BIT    | Accumulation buffer clear value  |
       +-----------------------+----------------------------------+
       |GL_COLOR_BUFFER_BIT    | GL_ALPHA_TEST enable bit	  |
       +-----------------------+----------------------------------+
       |		       | Alpha test function and	  |
       |		       | reference value		  |
       +-----------------------+----------------------------------+
       |		       | GL_BLEND enable bit		  |
       +-----------------------+----------------------------------+
       |		       | Blending source and destination  |
       |		       | functions			  |
       +-----------------------+----------------------------------+
       |		       | Constant blend color		  |
       +-----------------------+----------------------------------+
       |		       | Blending equation		  |
       +-----------------------+----------------------------------+
       |		       | GL_DITHER enable bit		  |
       +-----------------------+----------------------------------+
       |		       | GL_DRAW_BUFFER setting 	  |
       +-----------------------+----------------------------------+
       |		       | GL_COLOR_LOGIC_OP enable bit	  |
       +-----------------------+----------------------------------+
       |		       | GL_INDEX_LOGIC_OP enable bit	  |
       +-----------------------+----------------------------------+
       |		       | Logic op function		  |
       +-----------------------+----------------------------------+
       |		       | Color mode and index mode clear  |
       |		       | values 			  |
       +-----------------------+----------------------------------+
       |		       | Color mode and index mode	  |
       |		       | writemasks			  |
       +-----------------------+----------------------------------+
       |GL_CURRENT_BIT	       | Current RGBA color		  |
       +-----------------------+----------------------------------+
       |		       | Current color index		  |
       +-----------------------+----------------------------------+
       |		       | Current normal vector		  |
       +-----------------------+----------------------------------+
       |		       | Current texture coordinates	  |
       +-----------------------+----------------------------------+
       |		       | Current raster position	  |
       +-----------------------+----------------------------------+
       |		       | GL_CURRENT_RASTER_POSITION_VALID |
       |		       | flag				  |
       +-----------------------+----------------------------------+
       |		       | RGBA color associated with	  |
       |		       | current raster position	  |
       +-----------------------+----------------------------------+
       |		       | Color index associated with	  |
       |		       | current raster position	  |
       +-----------------------+----------------------------------+
       |		       | Texture coordinates associated   |
       |		       | with current raster position	  |
       +-----------------------+----------------------------------+
       |		       | GL_EDGE_FLAG flag		  |
       +-----------------------+----------------------------------+
       |GL_DEPTH_BUFFER_BIT    | GL_DEPTH_TEST enable bit	  |
       +-----------------------+----------------------------------+
       |		       | Depth buffer test function	  |
       +-----------------------+----------------------------------+
       |		       | Depth buffer clear value	  |
       +-----------------------+----------------------------------+
       |		       | GL_DEPTH_WRITEMASK enable bit	  |
       +-----------------------+----------------------------------+
       |GL_ENABLE_BIT	       | GL_ALPHA_TEST flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_AUTO_NORMAL flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_BLEND flag			  |
       +-----------------------+----------------------------------+
       |		       | Enable bits for the		  |
       |		       | user-definable clipping planes   |
       +-----------------------+----------------------------------+
       |		       | GL_COLOR_MATERIAL		  |
       +-----------------------+----------------------------------+
       |		       | GL_CULL_FACE flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_DEPTH_TEST flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_DITHER flag 		  |
       +-----------------------+----------------------------------+
       |		       | GL_FOG flag			  |
       +-----------------------+----------------------------------+
       |		       | GL_LIGHTi		  where   |
       |		       |			 0 <=	  |
       |		       |				  |
       |		       | i <				  |
       |		       | GL_MAX_LIGHTS			  |
       +-----------------------+----------------------------------+
       |		       | GL_LIGHTING flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_LINE_SMOOTH flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_LINE_STIPPLE flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_COLOR_LOGIC_OP flag 	  |
       +-----------------------+----------------------------------+
       |		       | GL_INDEX_LOGIC_OP flag 	  |
       +-----------------------+----------------------------------+
       |		       | GL_MAP1_x where x is a map type  |
       +-----------------------+----------------------------------+
       |		       | GL_MAP2_x where x is a map type  |
       +-----------------------+----------------------------------+
       |		       | GL_MULTISAMPLE flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_NORMALIZE flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_POINT_SMOOTH flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_OFFSET_LINE flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_OFFSET_FILL flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_OFFSET_POINT flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_SMOOTH flag 	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_STIPPLE flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_SAMPLE_ALPHA_TO_COVERAGE flag |
       +-----------------------+----------------------------------+
       |		       | GL_SAMPLE_ALPHA_TO_ONE flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_SAMPLE_COVERAGE flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_SCISSOR_TEST flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_STENCIL_TEST flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_TEXTURE_1D flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_TEXTURE_2D flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_TEXTURE_3D flag		  |
       +-----------------------+----------------------------------+
       |		       | Flags GL_TEXTURE_GEN_x where x   |
       |		       | is S, T, R, or Q		  |
       +-----------------------+----------------------------------+
       |GL_EVAL_BIT	       | GL_MAP1_x enable bits, where x   |
       |		       | is a map type			  |
       +-----------------------+----------------------------------+
       |		       | GL_MAP2_x enable bits, where x   |
       |		       | is a map type			  |
       +-----------------------+----------------------------------+
       |		       | 1D grid endpoints and divisions  |
       +-----------------------+----------------------------------+
       |		       | 2D grid endpoints and divisions  |
       +-----------------------+----------------------------------+
       |		       | GL_AUTO_NORMAL enable bit	  |
       +-----------------------+----------------------------------+
       |GL_FOG_BIT	       | GL_FOG enable bit		  |
       +-----------------------+----------------------------------+
       |		       | Fog color			  |
       +-----------------------+----------------------------------+
       |		       | Fog density			  |
       +-----------------------+----------------------------------+
       |		       | Linear fog start		  |
       +-----------------------+----------------------------------+
       |		       | Linear fog end 		  |
       +-----------------------+----------------------------------+
       |		       | Fog index			  |
       +-----------------------+----------------------------------+
       |		       | GL_FOG_MODE value		  |
       +-----------------------+----------------------------------+
       |GL_HINT_BIT	       | GL_PERSPECTIVE_CORRECTION_HINT   |
       |		       | setting			  |
       +-----------------------+----------------------------------+
       |		       | GL_POINT_SMOOTH_HINT setting	  |
       +-----------------------+----------------------------------+
       |		       | GL_LINE_SMOOTH_HINT setting	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_SMOOTH_HINT setting   |
       +-----------------------+----------------------------------+
       |		       | GL_FOG_HINT setting		  |
       +-----------------------+----------------------------------+
       |		       | GL_GENERATE_MIPMAP_HINT setting  |
       +-----------------------+----------------------------------+
       |		       | GL_TEXTURE_COMPRESSION_HINT	  |
       |		       | setting			  |
       +-----------------------+----------------------------------+
       |GL_LIGHTING_BIT        | GL_COLOR_MATERIAL enable bit	  |
       +-----------------------+----------------------------------+
       |		       | GL_COLOR_MATERIAL_FACE value	  |
       +-----------------------+----------------------------------+
       |		       | Color material parameters that   |
       |		       | are tracking the current color   |
       +-----------------------+----------------------------------+
       |		       | Ambient scene color		  |
       +-----------------------+----------------------------------+
       |		       | GL_LIGHT_MODEL_LOCAL_VIEWER	  |
       |		       | value				  |
       +-----------------------+----------------------------------+
       |		       | GL_LIGHT_MODEL_TWO_SIDE setting  |
       +-----------------------+----------------------------------+
       |		       | GL_LIGHTING enable bit 	  |
       +-----------------------+----------------------------------+
       |		       | Enable bit for each light	  |
       +-----------------------+----------------------------------+
       |		       | Ambient, diffuse, and specular   |
       |		       | intensity for each light	  |
       +-----------------------+----------------------------------+
       |		       | Direction, position, exponent,   |
       |		       | and cutoff angle for each light  |
       +-----------------------+----------------------------------+
       |		       | Constant, linear, and quadratic  |
       |		       | attenuation factors for each	  |
       |		       | light				  |
       +-----------------------+----------------------------------+
       |		       | Ambient, diffuse, specular, and  |
       |		       | emissive color for each material |
       +-----------------------+----------------------------------+
       |		       | Ambient, diffuse, and specular   |
       |		       | color indices for each material  |
       +-----------------------+----------------------------------+
       |		       | Specular exponent for each	  |
       |		       | material			  |
       +-----------------------+----------------------------------+
       |		       | GL_SHADE_MODEL setting 	  |
       +-----------------------+----------------------------------+
       |GL_LINE_BIT	       | GL_LINE_SMOOTH flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_LINE_STIPPLE enable bit	  |
       +-----------------------+----------------------------------+
       |		       | Line stipple pattern and repeat  |
       |		       | counter			  |
       +-----------------------+----------------------------------+
       |		       | Line width			  |
       +-----------------------+----------------------------------+
       |GL_LIST_BIT	       | GL_LIST_BASE setting		  |
       +-----------------------+----------------------------------+
       |GL_MULTISAMPLE_BIT     | GL_MULTISAMPLE flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_SAMPLE_ALPHA_TO_COVERAGE flag |
       +-----------------------+----------------------------------+
       |		       | GL_SAMPLE_ALPHA_TO_ONE flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_SAMPLE_COVERAGE flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_SAMPLE_COVERAGE_VALUE value   |
       +-----------------------+----------------------------------+
       |		       | GL_SAMPLE_COVERAGE_INVERT value  |
       +-----------------------+----------------------------------+
       |GL_PIXEL_MODE_BIT      | GL_RED_BIAS and GL_RED_SCALE	  |
       |		       | settings			  |
       +-----------------------+----------------------------------+
       |		       | GL_GREEN_BIAS and GL_GREEN_SCALE |
       |		       | values 			  |
       +-----------------------+----------------------------------+
       |		       | GL_BLUE_BIAS and GL_BLUE_SCALE   |
       +-----------------------+----------------------------------+
       |		       | GL_ALPHA_BIAS and GL_ALPHA_SCALE |
       +-----------------------+----------------------------------+
       |		       | GL_DEPTH_BIAS and GL_DEPTH_SCALE |
       +-----------------------+----------------------------------+
       |		       | GL_INDEX_OFFSET and		  |
       |		       | GL_INDEX_SHIFT values		  |
       +-----------------------+----------------------------------+
       |		       | GL_MAP_COLOR and GL_MAP_STENCIL  |
       |		       | flags				  |
       +-----------------------+----------------------------------+
       |		       | GL_ZOOM_X and GL_ZOOM_Y factors  |
       +-----------------------+----------------------------------+
       |		       | GL_READ_BUFFER setting 	  |
       +-----------------------+----------------------------------+
       |GL_POINT_BIT	       | GL_POINT_SMOOTH flag		  |
       +-----------------------+----------------------------------+
       |		       | Point size			  |
       +-----------------------+----------------------------------+
       |GL_POLYGON_BIT	       | GL_CULL_FACE enable bit	  |
       +-----------------------+----------------------------------+
       |		       | GL_CULL_FACE_MODE value	  |
       +-----------------------+----------------------------------+
       |		       | GL_FRONT_FACE indicator	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_MODE setting	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_SMOOTH flag 	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_STIPPLE enable bit	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_OFFSET_FILL flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_OFFSET_LINE flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_OFFSET_POINT flag	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_OFFSET_FACTOR	  |
       +-----------------------+----------------------------------+
       |		       | GL_POLYGON_OFFSET_UNITS	  |
       +-----------------------+----------------------------------+
       |GL_POLYGON_STIPPLE_BIT | Polygon stipple image		  |
       +-----------------------+----------------------------------+
       |GL_SCISSOR_BIT	       | GL_SCISSOR_TEST flag		  |
       +-----------------------+----------------------------------+
       |		       | Scissor box			  |
       +-----------------------+----------------------------------+
       |GL_STENCIL_BUFFER_BIT  | GL_STENCIL_TEST enable bit	  |
       +-----------------------+----------------------------------+
       |		       | Stencil function and reference   |
       |		       | value				  |
       +-----------------------+----------------------------------+
       |		       | Stencil value mask		  |
       +-----------------------+----------------------------------+
       |		       | Stencil fail, pass, and depth	  |
       |		       | buffer pass actions		  |
       +-----------------------+----------------------------------+
       |		       | Stencil buffer clear value	  |
       +-----------------------+----------------------------------+
       |		       | Stencil buffer writemask	  |
       +-----------------------+----------------------------------+
       |GL_TEXTURE_BIT	       | Enable bits for the four texture |
       |		       | coordinates			  |
       +-----------------------+----------------------------------+
       |		       | Border color for each texture	  |
       |		       | image				  |
       +-----------------------+----------------------------------+
       |		       | Minification function for each   |
       |		       | texture image			  |
       +-----------------------+----------------------------------+
       |		       | Magnification function for each  |
       |		       | texture image			  |
       +-----------------------+----------------------------------+
       |		       | Texture coordinates and wrap	  |
       |		       | mode for each texture image	  |
       +-----------------------+----------------------------------+
       |		       | Color and mode for each texture  |
       |		       | environment			  |
       +-----------------------+----------------------------------+
       |		       | Enable bits GL_TEXTURE_GEN_x, x  |
       |		       | is S, T, R, and Q		  |
       +-----------------------+----------------------------------+
       |		       | GL_TEXTURE_GEN_MODE setting for  |
       |		       | S, T, R, and Q 		  |
       +-----------------------+----------------------------------+
       |		       | glTexGen() plane equations for   |
       |		       | S, T, R, and Q 		  |
       +-----------------------+----------------------------------+
       |		       | Current texture bindings (for	  |
       |		       | example, GL_TEXTURE_BINDING_2D)  |
       +-----------------------+----------------------------------+
       |GL_TRANSFORM_BIT       | Coefficients of the six clipping |
       |		       | planes 			  |
       +-----------------------+----------------------------------+
       |		       | Enable bits for the		  |
       |		       | user-definable clipping planes   |
       +-----------------------+----------------------------------+
       |		       | GL_MATRIX_MODE value		  |
       +-----------------------+----------------------------------+
       |		       | GL_NORMALIZE flag		  |
       +-----------------------+----------------------------------+
       |		       | GL_RESCALE_NORMAL flag 	  |
       +-----------------------+----------------------------------+
       |GL_VIEWPORT_BIT        | Depth range (near and far)	  |
       +-----------------------+----------------------------------+
       |		       | Viewport origin and extent	  |
       +-----------------------+----------------------------------+

       glPopAttrib() restores the values of the state variables saved with the last glPushAttrib
       command. Those not saved are left unchanged.

       It is an error to push attributes onto a full stack or to pop attributes off an empty
       stack. In either case, the error flag is set and no other change is made to GL state.

       Initially, the attribute stack is empty.

NOTES
       Not all values for GL state can be saved on the attribute stack. For example, render mode
       state, and select and feedback state cannot be saved. Client state must be saved with
       glPushClientAttrib().

       The depth of the attribute stack depends on the implementation, but it must be at least
       16.

       For OpenGL versions 1.3 and greater, or when the ARB_multitexture extension is supported,
       pushing and popping texture state applies to all supported texture units.

ERRORS
       GL_STACK_OVERFLOW is generated if glPushAttrib is called while the attribute stack is
       full.

       GL_STACK_UNDERFLOW is generated if glPopAttrib() is called while the attribute stack is
       empty.

       GL_INVALID_OPERATION is generated if glPushAttrib or glPopAttrib() is executed between the
       execution of glBegin() and the corresponding execution of glEnd().

ASSOCIATED GETS
       glGet() with argument GL_ATTRIB_STACK_DEPTH

       glGet() with argument GL_MAX_ATTRIB_STACK_DEPTH

SEE ALSO
       glGet(), glGetClipPlane(), glGetError(), glGetLight(), glGetMap(), glGetMaterial(),
       glGetPixelMap(), glGetPolygonStipple(), glGetString(), glGetTexEnv(), glGetTexGen(),
       glGetTexImage(), glGetTexLevelParameter(), glGetTexParameter(), glIsEnabled(),
       glPushClientAttrib()

COPYRIGHT
       Copyright (C) 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/.

AUTHORS
       opengl.org

opengl.org				    06/10/2014				 GLPUSHATTRIB(3G)
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