fglPushAttrib(3G) OpenGL Reference fglPushAttrib(3G)NAME
fglPushAttrib, fglPopAttrib - push and pop the server attribute stack
FORTRAN SPECIFICATION
SUBROUTINE fglPushAttrib( INTEGER*4 mask )
PARAMETERS
mask Specifies a mask that indicates which attributes to save. Values
for mask are listed below.
FORTRAN SPECIFICATION
SUBROUTINE fglPopAttrib( )
DESCRIPTION
fglPushAttrib 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 ORing
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
Page 1
fglPushAttrib(3G) OpenGL Reference fglPushAttrib(3G)
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
GL_CALLIGRAPHIC_FRAGMENT_SGIX flag
Enable bits for the user-definable clipping planes
GL_COLOR_TABLE_SGI flag
GL_COLOR_MATERIAL
GL_CULL_FACE flag
GL_DEPTH_TEST flag
GL_DITHER flag
GL_FOG flag
GL_INTERLACE_SGIX flag
GL_INTERLACE_READ_INGR 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_SGIS flag
GL_NORMALIZE flag
GL_POINT_SMOOTH flag
GL_POLYGON_OFFSET_EXT 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_POST_COLOR_MATRIX_COLOR_TABLE_SGI flag
GL_POST_CONVOLUTION_COLOR_TABLE_SGI flag
GL_REFERENCE_PLANE_SGIX flag
GL_SAMPLE_ALPHA_TO_MASK_SGIS flag
GL_SAMPLE_ALPHA_TO_ONE_SGIS flag
GL_SAMPLE_MASK_SGIS flag
GL_SCISSOR_TEST flag
GL_SPRITE_SGIX flag
GL_STENCIL_TEST flag
GL_TEXTURE_1D flag
GL_TEXTURE_2D flag
GL_TEXTURE_3D flag
Page 2
fglPushAttrib(3G) OpenGL Reference fglPushAttrib(3G)
GL_TEXTURE_COLOR_TABLE_SGI 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
Control points for custom fog blending function
Number of control points
GL_FOG_OFFSET_SGIX enable bit
Fog offset parameters
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_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
Page 3
fglPushAttrib(3G) OpenGL Reference fglPushAttrib(3G)
GL_MULTISAMPLE_BIT_EXT GL_MULTISAMPLE_SGIS enable bit
GL_SAMPLE_ALPHA_TO_MASK_SGIS enable bit
GL_SAMPLE_ALPHA_TO_ONE_SGIS enable bit
GL_SAMPLE_MASK_SGIS enable bit
GL_SAMPLE_MASK_VALUE_SGIS
GL_SAMPLE_MASK_INVERT_SGIS
GL_SAMPLE_PATTERN_SGIS
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_INTERLACE_SGIX flag
GL_INTERLACE_READ_INGR flag
GL_POINT_BIT GL_POINT_SMOOTH flag
Point size
GL_POINT_SIZE_MIN_SGIS and GL_POINT_SIZE_MAX_SGIS
GL_POINT_FADE_THRESHOLD_SIZE_SGIS
GL_DISTANCE_ATTENUATION_SGIS
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 flag
GL_POLYGON_OFFSET_EXT flag
GL_POLYGON_OFFSET_FACTOR_EXT
GL_POLYGON_OFFSET_BIAS_EXT
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
Page 4
fglPushAttrib(3G) OpenGL Reference fglPushAttrib(3G)
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
fglTexGen plane equations for S, T, R, and Q
Current texture bindings (for example, GL_TEXTURE_BINDING_2D)
Detail texture binding, level offset, mode, and scaling function control points
Sharpen texture scaling function control points
GL_TEXTURE_COLOR_TABLE_SGI enable bit
GL_TEXTURE_COLOR_TABLE_SCALE_SGI
GL_TEXTURE_COLOR_TABLE_BIAS_SGI
Minimum and maximum LOD clamping values
Base and maximum mipmap levels
Texture filter function weights
Dual and quad texture group selection
Post-texture filter scale and bias values
Clipmap frame size, center, offset, lod offset, depth, and virtual depth
Texture comparison operator
Texture comparison enable
Shadow ambient lighting coefficient
GL_TRANSFORM_BIT Coefficients of the six clipping planes
Enable bits for the user-definable clipping planes
GL_MATRIX_MODE value
GL_NORMALIZE flag
Coefficients of the reference plane
GL_RESCALE_NORMAL flag
GL_SPRITE_SGIX flag
Current sprite mode, axis, and translation
GL_VIEWPORT_BIT Depth range (near and far)
Viewport origin and extent
fglPopAttrib restores the values of the state variables saved with the
last fglPushAttrib 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.
Page 5
fglPushAttrib(3G) OpenGL Reference fglPushAttrib(3G)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 fglPushClientAttrib.
The depth of the attribute stack depends on the implementation, but it
must be at least 16.
GL_COLOR_LOGIC_OP, GL_INDEX_LOGIC_OP, GL_POLYGON_OFFSET_FILL,
GL_POLYGON_OFFSET_LINE and GL_POLYGON_OFFSET_POINT are only available if
the GL version is 1.1 or greater.
ERRORS
GL_STACK_OVERFLOW is generated if fglPushAttrib is called while the
attribute stack is full.
GL_STACK_UNDERFLOW is generated if fglPopAttrib is called while the
attribute stack is empty.
GL_INVALID_OPERATION is generated if fglPushAttrib or fglPopAttrib is
executed between the execution of fglBegin and the corresponding
execution of fglEnd.
ASSOCIATED GETS
fglGet with argument GL_ATTRIB_STACK_DEPTH
fglGet with argument GL_MAX_ATTRIB_STACK_DEPTH
MACHINE DEPENDENCIES
GL_COLOR_TABLE_SGI, GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI and
GL_POST_CONVOLUTION_COLOR_TABLE_SGI are part of the SGI_color_table
extension which is not supported on RealityEngine, RealityEngine2, and
VTX systems.
On RealityEngine, RealityEngine2, and VTX and High Impact and Maximum
Impact systems there is no support for pushing or popping attributes
related to detail texturing.
The SGIX_interlace extension is supported only on InfiniteReality
systems, on RealityEngine, RealityEngine2, and VTX systems, on Octane2
VPro systems, and on O2 systems.
The INGR_interlace_read extension is supported only on Octane2 VPro
systems, and on O2 systems.
RealityEngine, RealityEngine2, and VTX systems have no support for
pushing or popping attributes related to sharpen texturing.
On InfiniteReality systems, if the post-texture filter scale and bias
values are set to values other than the defaults, they are limited to the
range [0.0, 1.0). (note: this range excludes 1.0.) The
SGIX_texture_scale_bias extension is not supported on RealityEngine,
Page 6
fglPushAttrib(3G) OpenGL Reference fglPushAttrib(3G)
RealityEngine2, and VTX systems or on High Impact and Maximum Impact
systems.
The SGIS_texture_select extension is supported only on InfiniteReality
systems, High Impact and Maximum Impact on Octane systems, and High
Impact and Maximum Impact on Indigo2 systems with the TRAM option card.
SEE ALSO
fglGet, fglGetClipPlane, fglGetError, fglGetLight, fglGetMap,
fglGetMaterial, fglGetPixelMap, fglGetPolygonStipple, fglGetString,
fglGetTexEnv, fglGetTexGen, fglGetTexImage, fglGetTexLevelParameter,
fglGetTexParameter, fglIsEnabled, fglPushClientAttrib
Page 7
