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+<?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>glPushAttrib</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glPushAttrib"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glPushAttrib — push and pop the server attribute stack</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glPushAttrib</b>(</code></td><td>GLbitfield </td><td><var class="pdparam">mask</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>mask</code></em></span></dt><dd><p>
+ Specifies a mask that indicates which attributes to save. Values for
+ <em class="parameter"><code>mask</code></em> are listed below.
+ </p></dd></dl></div></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glPopAttrib</b>(</code></td><td> </td><td><var class="pdparam">void</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
+ <code class="function">glPushAttrib</code> 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.
+ <em class="parameter"><code>mask</code></em>
+ is typically constructed by specifying the bitwise-or of several
+ of these constants together.
+ The special mask
+ <code class="constant">GL_ALL_ATTRIB_BITS</code>
+ can be used to save all stackable states.
+ </p><p>
+ The symbolic mask constants and their associated GL state are as follows
+ (the second column lists which attributes are saved):
+ </p><p>
+ </p><div class="informaltable"><table border="1"><colgroup><col align="left" /><col align="left" /></colgroup><tbody><tr><td align="left">
+ <code class="constant">GL_ACCUM_BUFFER_BIT</code>
+ </td><td align="left">
+ Accumulation buffer clear value
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_COLOR_BUFFER_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_ALPHA_TEST</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Alpha test function and reference value
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_BLEND</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Blending source and destination functions
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Constant blend color
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Blending equation
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_DITHER</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_DRAW_BUFFER</code> setting
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_COLOR_LOGIC_OP</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_INDEX_LOGIC_OP</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Logic op function
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Color mode and index mode clear values
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Color mode and index mode writemasks
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_CURRENT_BIT</code>
+ </td><td align="left">
+ Current RGBA color
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Current color index
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Current normal vector
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Current texture coordinates
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Current raster position
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_CURRENT_RASTER_POSITION_VALID</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ RGBA color associated with current raster position
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Color index associated with current raster position
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Texture coordinates associated with current raster position
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_EDGE_FLAG</code> flag
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_DEPTH_BUFFER_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_DEPTH_TEST</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Depth buffer test function
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Depth buffer clear value
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_DEPTH_WRITEMASK</code> enable bit
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_ENABLE_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_ALPHA_TEST</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_AUTO_NORMAL</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_BLEND</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Enable bits for the user-definable clipping planes
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_COLOR_MATERIAL</code>
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_CULL_FACE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_DEPTH_TEST</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_DITHER</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_FOG</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_LIGHT</code><span class="emphasis"><em>i</em></span>
+ where
+ <code class="constant">0</code> <= <span class="emphasis"><em>i</em></span> < <code class="constant">GL_MAX_LIGHTS</code>
+
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_LIGHTING</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_LINE_SMOOTH</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_LINE_STIPPLE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_COLOR_LOGIC_OP</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_INDEX_LOGIC_OP</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_MAP1_</code><span class="emphasis"><em>x</em></span> where <span class="emphasis"><em>x</em></span> is a map type
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_MAP2_</code><span class="emphasis"><em>x</em></span> where <span class="emphasis"><em>x</em></span> is a map type
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_MULTISAMPLE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_NORMALIZE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POINT_SMOOTH</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_OFFSET_LINE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_OFFSET_FILL</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_OFFSET_POINT</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_SMOOTH</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_STIPPLE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SAMPLE_ALPHA_TO_COVERAGE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SAMPLE_ALPHA_TO_ONE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SAMPLE_COVERAGE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SCISSOR_TEST</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_STENCIL_TEST</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_TEXTURE_1D</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_TEXTURE_2D</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_TEXTURE_3D</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Flags <code class="constant">GL_TEXTURE_GEN_</code><span class="emphasis"><em>x</em></span> where <span class="emphasis"><em>x</em></span> is S, T, R, or Q
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_EVAL_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_MAP1_</code><span class="emphasis"><em>x</em></span> enable bits, where <span class="emphasis"><em>x</em></span> is a map type
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_MAP2_</code><span class="emphasis"><em>x</em></span> enable bits, where <span class="emphasis"><em>x</em></span> is a map type
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ 1D grid endpoints and divisions
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ 2D grid endpoints and divisions
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_AUTO_NORMAL</code> enable bit
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_FOG_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_FOG</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Fog color
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Fog density
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Linear fog start
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Linear fog end
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Fog index
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_FOG_MODE</code> value
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_HINT_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_PERSPECTIVE_CORRECTION_HINT</code> setting
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POINT_SMOOTH_HINT</code> setting
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_LINE_SMOOTH_HINT</code> setting
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_SMOOTH_HINT</code> setting
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_FOG_HINT</code> setting
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_GENERATE_MIPMAP_HINT</code> setting
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_TEXTURE_COMPRESSION_HINT</code> setting
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_LIGHTING_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_COLOR_MATERIAL</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_COLOR_MATERIAL_FACE</code> value
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Color material parameters that are tracking the current color
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Ambient scene color
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_LIGHT_MODEL_LOCAL_VIEWER</code> value
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_LIGHT_MODEL_TWO_SIDE</code> setting
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_LIGHTING</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Enable bit for each light
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Ambient, diffuse, and specular intensity for each light
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Direction, position, exponent, and cutoff angle for each light
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Constant, linear, and quadratic attenuation factors for each light
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Ambient, diffuse, specular, and emissive color for each material
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Ambient, diffuse, and specular color indices for each material
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Specular exponent for each material
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SHADE_MODEL</code> setting
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_LINE_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_LINE_SMOOTH</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_LINE_STIPPLE</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Line stipple pattern and repeat counter
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Line width
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_LIST_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_LIST_BASE</code> setting
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_MULTISAMPLE_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_MULTISAMPLE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SAMPLE_ALPHA_TO_COVERAGE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SAMPLE_ALPHA_TO_ONE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SAMPLE_COVERAGE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SAMPLE_COVERAGE_VALUE</code> value
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_SAMPLE_COVERAGE_INVERT</code> value
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_PIXEL_MODE_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_RED_BIAS</code> and <code class="constant">GL_RED_SCALE</code> settings
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_GREEN_BIAS</code> and <code class="constant">GL_GREEN_SCALE</code> values
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_BLUE_BIAS</code> and <code class="constant">GL_BLUE_SCALE</code>
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_ALPHA_BIAS</code> and <code class="constant">GL_ALPHA_SCALE</code>
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_DEPTH_BIAS</code> and <code class="constant">GL_DEPTH_SCALE</code>
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_INDEX_OFFSET</code> and <code class="constant">GL_INDEX_SHIFT</code> values
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_MAP_COLOR</code> and <code class="constant">GL_MAP_STENCIL</code> flags
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_ZOOM_X</code> and <code class="constant">GL_ZOOM_Y</code> factors
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_READ_BUFFER</code> setting
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_POINT_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_POINT_SMOOTH</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Point size
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_POLYGON_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_CULL_FACE</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_CULL_FACE_MODE</code> value
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_FRONT_FACE</code> indicator
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_MODE</code> setting
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_SMOOTH</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_STIPPLE</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_OFFSET_FILL</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_OFFSET_LINE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_OFFSET_POINT</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_OFFSET_FACTOR</code>
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_POLYGON_OFFSET_UNITS</code>
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_POLYGON_STIPPLE_BIT</code>
+ </td><td align="left">
+ Polygon stipple image
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_SCISSOR_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_SCISSOR_TEST</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Scissor box
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_STENCIL_BUFFER_BIT</code>
+ </td><td align="left">
+ <code class="constant">GL_STENCIL_TEST</code> enable bit
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Stencil function and reference value
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Stencil value mask
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Stencil fail, pass, and depth buffer pass actions
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Stencil buffer clear value
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Stencil buffer writemask
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_TEXTURE_BIT</code>
+ </td><td align="left">
+ Enable bits for the four texture coordinates
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Border color for each texture image
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Minification function for each texture image
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Magnification function for each texture image
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Texture coordinates and wrap mode for each texture image
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Color and mode for each texture environment
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Enable bits <code class="constant">GL_TEXTURE_GEN_</code><span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>x</em></span> is S, T, R, and Q
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_TEXTURE_GEN_MODE</code> setting for S, T, R, and Q
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a> plane equations for S, T, R, and Q
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Current texture bindings (for example, <code class="constant">GL_TEXTURE_BINDING_2D</code>)
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_TRANSFORM_BIT</code>
+ </td><td align="left">
+ Coefficients of the six clipping planes
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Enable bits for the user-definable clipping planes
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_MATRIX_MODE</code> value
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_NORMALIZE</code> flag
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ <code class="constant">GL_RESCALE_NORMAL</code> flag
+ </td></tr><tr><td align="left">
+ <code class="constant">GL_VIEWPORT_BIT</code>
+ </td><td align="left">
+ Depth range (near and far)
+ </td></tr><tr><td align="left">
+ </td><td align="left">
+ Viewport origin and extent
+ </td></tr></tbody></table></div><p>
+ <a class="citerefentry" href="glPopAttrib.xml"><span class="citerefentry"><span class="refentrytitle">glPopAttrib</span></span></a> restores the values of the state variables saved with the last
+ <code class="function">glPushAttrib</code> command.
+ Those not saved are left unchanged.
+ </p><p>
+ 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.
+ </p><p>
+ Initially, the attribute stack is empty.
+ </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p>
+ 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
+ <a class="citerefentry" href="glPushClientAttrib.xml"><span class="citerefentry"><span class="refentrytitle">glPushClientAttrib</span></span></a>.
+ </p><p>
+ The depth of the attribute stack depends on the implementation,
+ but it must be at least 16.
+ </p><p>
+ For OpenGL versions 1.3 and greater, or when the <code class="code">ARB_multitexture</code> extension is supported, pushing and
+ popping texture state applies to all supported texture units.
+ </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p>
+ <code class="constant">GL_STACK_OVERFLOW</code> is generated if <code class="function">glPushAttrib</code> is called while
+ the attribute stack is full.
+ </p><p>
+ <code class="constant">GL_STACK_UNDERFLOW</code> is generated if <a class="citerefentry" href="glPopAttrib.xml"><span class="citerefentry"><span class="refentrytitle">glPopAttrib</span></span></a> is called while
+ the attribute stack is empty.
+ </p><p>
+ <code class="constant">GL_INVALID_OPERATION</code> is generated if <code class="function">glPushAttrib</code> or <a class="citerefentry" href="glPopAttrib.xml"><span class="citerefentry"><span class="refentrytitle">glPopAttrib</span></span></a>
+ is executed between the execution of <a class="citerefentry" href="glBegin.xml"><span class="citerefentry"><span class="refentrytitle">glBegin</span></span></a>
+ and the corresponding execution of <a class="citerefentry" href="glEnd.xml"><span class="citerefentry"><span class="refentrytitle">glEnd</span></span></a>.
+ </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p>
+ <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_ATTRIB_STACK_DEPTH</code>
+ </p><p>
+ <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_MAX_ATTRIB_STACK_DEPTH</code>
+ </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
+ <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a>,
+ <a class="citerefentry" href="glGetClipPlane.xml"><span class="citerefentry"><span class="refentrytitle">glGetClipPlane</span></span></a>,
+ <a class="citerefentry" href="glGetError.xml"><span class="citerefentry"><span class="refentrytitle">glGetError</span></span></a>,
+ <a class="citerefentry" href="glGetLight.xml"><span class="citerefentry"><span class="refentrytitle">glGetLight</span></span></a>,
+ <a class="citerefentry" href="glGetMap.xml"><span class="citerefentry"><span class="refentrytitle">glGetMap</span></span></a>,
+ <a class="citerefentry" href="glGetMaterial.xml"><span class="citerefentry"><span class="refentrytitle">glGetMaterial</span></span></a>,
+ <a class="citerefentry" href="glGetPixelMap.xml"><span class="citerefentry"><span class="refentrytitle">glGetPixelMap</span></span></a>,
+ <a class="citerefentry" href="glGetPolygonStipple.xml"><span class="citerefentry"><span class="refentrytitle">glGetPolygonStipple</span></span></a>,
+ <a class="citerefentry" href="glGetString.xml"><span class="citerefentry"><span class="refentrytitle">glGetString</span></span></a>,
+ <a class="citerefentry" href="glGetTexEnv.xml"><span class="citerefentry"><span class="refentrytitle">glGetTexEnv</span></span></a>,
+ <a class="citerefentry" href="glGetTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glGetTexGen</span></span></a>,
+ <a class="citerefentry" href="glGetTexImage.xml"><span class="citerefentry"><span class="refentrytitle">glGetTexImage</span></span></a>,
+ <a class="citerefentry" href="glGetTexLevelParameter.xml"><span class="citerefentry"><span class="refentrytitle">glGetTexLevelParameter</span></span></a>,
+ <a class="citerefentry" href="glGetTexParameter.xml"><span class="citerefentry"><span class="refentrytitle">glGetTexParameter</span></span></a>,
+ <a class="citerefentry" href="glIsEnabled.xml"><span class="citerefentry"><span class="refentrytitle">glIsEnabled</span></span></a>,
+ <a class="citerefentry" href="glPushClientAttrib.xml"><span class="citerefentry"><span class="refentrytitle">glPushClientAttrib</span></span></a>
+ </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
+ Copyright <span class="trademark"></span>© 1991-2006
+ Silicon Graphics, Inc. This document is licensed under the SGI
+ Free Software B License. For details, see
+ <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>.
+ </p></div></div></body></html>
HCoop / clinton / guile-figl.git / blobdiff