PyOpenGL 3.1.0

GL Reference

FunctionPurpose
glAccum operate on the accumulation buffer
glActiveShaderProgram set the active program object for a program pipeline object
glActiveTexture select active texture unit
glAlphaFunc specify the alpha test function
glAreTexturesResident determine if textures are loaded in texture memory
glArrayElement render a vertex using the specified vertex array element
glAttachShader Attaches a shader object to a program object
glBegin delimit the vertices of a primitive or a group of like primitives
glBeginConditionalRender start conditional rendering
glBeginQuery delimit the boundaries of a query object
glBeginQueryIndexed, glEndQueryIndexed delimit the boundaries of a query object on an indexed target
glBeginTransformFeedback start transform feedback operation
glBindAttribLocation Associates a generic vertex attribute index with a named attribute variable
glBindBuffer bind a named buffer object
glBindBufferBase bind a buffer object to an indexed buffer target
glBindBufferRange bind a range within a buffer object to an indexed buffer target
glBindBuffersBase bind one or more buffer objects to a sequence of indexed buffer targets
glBindBuffersRange bind ranges of one or more buffer objects to a sequence of indexed buffer targets
glBindFragDataLocation bind a user-defined varying out variable to a fragment shader color number
glBindFragDataLocationIndexed bind a user-defined varying out variable to a fragment shader color number and index
glBindFramebuffer bind a framebuffer to a framebuffer target
glBindImageTexture bind a level of a texture to an image unit
glBindImageTextures bind one or more named texture images to a sequence of consecutive image units
glBindProgramPipeline bind a program pipeline to the current context
glBindRenderbuffer bind a renderbuffer to a renderbuffer target
glBindSampler bind a named sampler to a texturing target
glBindSamplers bind one or more named sampler objects to a sequence of consecutive sampler units
glBindTexture bind a named texture to a texturing target
glBindTextures bind one or more named textures to a sequence of consecutive texture units
glBindTransformFeedback bind a transform feedback object
glBindVertexArray bind a vertex array object
glBindVertexBuffer bind a buffer to a vertex buffer bind point
glBindVertexBuffers bind one or more named buffer objects to a sequence of consecutive vertex buffer binding points
glBitmap draw a bitmap
glBlendColor set the blend color
glBlendEquation specify the equation used for both the RGB blend equation and the Alpha blend equation
glBlendEquationSeparate set the RGB blend equation and the alpha blend equation separately
glBlendFunc specify pixel arithmetic
glBlendFuncSeparate specify pixel arithmetic for RGB and alpha components separately
glBlitFramebuffer copy a block of pixels from the read framebuffer to the draw framebuffer
glBufferData creates and initializes a buffer object's data store
glBufferStorage creates and initializes a buffer object's immutable data store
glBufferSubData updates a subset of a buffer object's data store
glCallList execute a display list
glCallLists execute a list of display lists
glCheckFramebufferStatus check the completeness status of a framebuffer
glClampColor specify whether data read via
glClear clear buffers to preset values
glClearAccum specify clear values for the accumulation buffer
glClearBuffer clear individual buffers of the currently bound draw framebuffer
glClearBufferData fill a buffer object's data store with a fixed value
glClearBufferSubData fill all or part of buffer object's data store with a fixed value
glClearColor specify clear values for the color buffers
glClearDepth specify the clear value for the depth buffer
glClearIndex specify the clear value for the color index buffers
glClearStencil specify the clear value for the stencil buffer
glClearTexImage fills all a texture image with a constant value
glClearTexSubImage fills all or part of a texture image with a constant value
glClientActiveTexture select active texture unit
glClientWaitSync block and wait for a sync object to become signaled
glClipPlane specify a plane against which all geometry is clipped
glColor set the current color
glColorMask enable and disable writing of frame buffer color components
glColorMaterial cause a material color to track the current color
glColorPointer define an array of colors
glColorSubTable respecify a portion of a color table
glColorTable define a color lookup table
glColorTableParameter set color lookup table parameters
glCompileShader Compiles a shader object
glCompressedTexImage1D specify a one-dimensional texture image in a compressed format
glCompressedTexImage2D specify a two-dimensional texture image in a compressed format
glCompressedTexImage3D specify a three-dimensional texture image in a compressed format
glCompressedTexSubImage1D specify a one-dimensional texture subimage in a compressed format
glCompressedTexSubImage2D specify a two-dimensional texture subimage in a compressed format
glCompressedTexSubImage3D specify a three-dimensional texture subimage in a compressed format
glConvolutionFilter1D define a one-dimensional convolution filter
glConvolutionFilter2D define a two-dimensional convolution filter
glConvolutionParameter set convolution parameters
glCopyBufferSubData copy part of the data store of a buffer object to the data store of another buffer object
glCopyColorSubTable respecify a portion of a color table
glCopyColorTable copy pixels into a color table
glCopyConvolutionFilter1D copy pixels into a one-dimensional convolution filter
glCopyConvolutionFilter2D copy pixels into a two-dimensional convolution filter
glCopyImageSubData perform a raw data copy between two images
glCopyPixels copy pixels in the frame buffer
glCopyTexImage1D copy pixels into a 1D texture image
glCopyTexImage2D copy pixels into a 2D texture image
glCopyTexSubImage1D copy a one-dimensional texture subimage
glCopyTexSubImage2D copy a two-dimensional texture subimage
glCopyTexSubImage3D copy a three-dimensional texture subimage
glCreateProgram Creates a program object
glCreateShader Creates a shader object
glCreateShaderProgram create a stand-alone program from an array of null-terminated source code strings
glCullFace specify whether front- or back-facing facets can be culled
glDebugMessageCallback specify a callback to receive debugging messages from the GL
glDebugMessageControl control the reporting of debug messages in a debug context
glDebugMessageInsert inject an application-supplied message into the debug message queue
glDeleteBuffers delete named buffer objects
glDeleteFramebuffers delete framebuffer objects
glDeleteLists delete a contiguous group of display lists
glDeleteProgram Deletes a program object
glDeleteProgramPipelines delete program pipeline objects
glDeleteQueries delete named query objects
glDeleteRenderbuffers delete renderbuffer objects
glDeleteSamplers delete named sampler objects
glDeleteShader Deletes a shader object
glDeleteSync delete a sync object
glDeleteTextures delete named textures
glDeleteTransformFeedbacks delete transform feedback objects
glDeleteVertexArrays delete vertex array objects
glDepthFunc specify the value used for depth buffer comparisons
glDepthMask enable or disable writing into the depth buffer
glDepthRange specify mapping of depth values from normalized device coordinates to window coordinates
glDepthRangeArray specify mapping of depth values from normalized device coordinates to window coordinates for a specified set of viewports
glDepthRangeIndexed specify mapping of depth values from normalized device coordinates to window coordinates for a specified viewport
glDetachShader Detaches a shader object from a program object to which it is attached
glDispatchCompute launch one or more compute work groups
glDispatchComputeIndirect launch one or more compute work groups using parameters stored in a buffer
glDrawArrays render primitives from array data
glDrawArraysIndirect render primitives from array data, taking parameters from memory
glDrawArraysInstanced draw multiple instances of a range of elements
glDrawArraysInstancedBaseInstance draw multiple instances of a range of elements with offset applied to instanced attributes
glDrawBuffer specify which color buffers are to be drawn into
glDrawBuffers Specifies a list of color buffers to be drawn into
glDrawElements render primitives from array data
glDrawElementsBaseVertex render primitives from array data with a per-element offset
glDrawElementsIndirect render indexed primitives from array data, taking parameters from memory
glDrawElementsInstanced draw multiple instances of a set of elements
glDrawElementsInstancedBaseInstance draw multiple instances of a set of elements with offset applied to instanced attributes
glDrawElementsInstancedBaseVertex render multiple instances of a set of primitives from array data with a per-element offset
glDrawElementsInstancedBaseVertexBaseInstance render multiple instances of a set of primitives from array data with a per-element offset
glDrawPixels write a block of pixels to the frame buffer
glDrawRangeElements render primitives from array data
glDrawRangeElementsBaseVertex render primitives from array data with a per-element offset
glDrawTransformFeedback render primitives using a count derived from a transform feedback object
glDrawTransformFeedbackInstanced render multiple instances of primitives using a count derived from a transform feedback object
glDrawTransformFeedbackStream render primitives using a count derived from a specifed stream of a transform feedback object
glDrawTransformFeedbackStreamInstanced render multiple instances of primitives using a count derived from a specifed stream of a transform feedback object
glEdgeFlag flag edges as either boundary or nonboundary
glEdgeFlagPointer define an array of edge flags
glEnable enable or disable server-side GL capabilities
glEnableClientState enable or disable client-side capability
glEnableVertexAttribArray Enable or disable a generic vertex attribute array
glEvalCoord evaluate enabled one- and two-dimensional maps
glEvalMesh compute a one- or two-dimensional grid of points or lines
glEvalPoint generate and evaluate a single point in a mesh
glFeedbackBuffer controls feedback mode
glFenceSync create a new sync object and insert it into the GL command stream
glFinish block until all GL execution is complete
glFlush force execution of GL commands in finite time
glFlushMappedBufferRange indicate modifications to a range of a mapped buffer
glFog specify fog parameters
glFogCoord set the current fog coordinates
glFogCoordPointer define an array of fog coordinates
glFramebufferParameteri set a named parameter of a framebuffer
glFramebufferRenderbuffer attach a renderbuffer as a logical buffer to the currently bound framebuffer object
glFramebufferTexture attach a level of a texture object as a logical buffer to the currently bound framebuffer object
glFramebufferTextureLayer attach a single layer of a texture to a framebuffer
glFrontFace define front- and back-facing polygons
glFrustum multiply the current matrix by a perspective matrix
glGenBuffers generate buffer object names
glGenFramebuffers generate framebuffer object names
glGenLists generate a contiguous set of empty display lists
glGenProgramPipelines reserve program pipeline object names
glGenQueries generate query object names
glGenRenderbuffers generate renderbuffer object names
glGenSamplers generate sampler object names
glGenTextures generate texture names
glGenTransformFeedbacks reserve transform feedback object names
glGenVertexArrays generate vertex array object names
glGenerateMipmap generate mipmaps for a specified texture target
glGet return the value or values of a selected parameter
glGetActiveAtomicCounterBufferiv retrieve information about the set of active atomic counter buffers for a program
glGetActiveAttrib Returns information about an active attribute variable for the specified program object
glGetActiveSubroutineName query the name of an active shader subroutine
glGetActiveSubroutineUniform query a property of an active shader subroutine uniform
glGetActiveSubroutineUniformName query the name of an active shader subroutine uniform
glGetActiveUniform Returns information about an active uniform variable for the specified program object
glGetActiveUniformBlock query information about an active uniform block
glGetActiveUniformBlockName retrieve the name of an active uniform block
glGetActiveUniformName query the name of an active uniform
glGetActiveUniformsiv Returns information about several active uniform variables for the specified program object
glGetAttachedShaders Returns the handles of the shader objects attached to a program object
glGetAttribLocation Returns the location of an attribute variable
glGetBufferParameteriv return parameters of a buffer object
glGetBufferPointerv return the pointer to a mapped buffer object's data store
glGetBufferSubData returns a subset of a buffer object's data store
glGetClipPlane return the coefficients of the specified clipping plane
glGetColorTable retrieve contents of a color lookup table
glGetColorTableParameter get color lookup table parameters
glGetCompressedTexImage return a compressed texture image
glGetConvolutionFilter get current 1D or 2D convolution filter kernel
glGetConvolutionParameter get convolution parameters
glGetDebugMessageLog retrieve messages from the debug message log
glGetError return error information
glGetFragDataIndex query the bindings of color indices to user-defined varying out variables
glGetFragDataLocation query the bindings of color numbers to user-defined varying out variables
glGetFramebufferAttachmentParameteriv retrieve information about attachments of a bound framebuffer object
glGetFramebufferParameter retrieve a named parameter from a framebuffer
glGetHistogram get histogram table
glGetHistogramParameter get histogram parameters
glGetInternalFormativ retrieve information about implementation-dependent support for internal formats
glGetInternalformat retrieve information about implementation-dependent support for internal formats
glGetLight return light source parameter values
glGetMap return evaluator parameters
glGetMaterial return material parameters
glGetMinmax get minimum and maximum pixel values
glGetMinmaxParameter get minmax parameters
glGetMultisamplefv retrieve the location of a sample
glGetObjectLabel retrieve the label of a named object identified within a namespace
glGetObjectPtrLabel retrieve the label of a sync object identified by a pointer
glGetPixelMap return the specified pixel map
glGetPointerv return the address of the specified pointer
glGetPolygonStipple return the polygon stipple pattern
glGetProgram Returns a parameter from a program object
glGetProgramBinary return a binary representation of a program object's compiled and linked executable source
glGetProgramInfoLog Returns the information log for a program object
glGetProgramInterface query a property of an interface in a program
glGetProgramPipeline retrieve properties of a program pipeline object
glGetProgramPipelineInfoLog retrieve the info log string from a program pipeline object
glGetProgramResource retrieve values for multiple properties of a single active resource within a program object
glGetProgramResourceIndex query the index of a named resource within a program
glGetProgramResourceLocation query the location of a named resource within a program
glGetProgramResourceLocationIndex query the fragment color index of a named variable within a program
glGetProgramResourceName query the name of an indexed resource within a program
glGetProgramStage retrieve properties of a program object corresponding to a specified shader stage
glGetQueryIndexediv return parameters of an indexed query object target
glGetQueryObject return parameters of a query object
glGetQueryiv return parameters of a query object target
glGetRenderbufferParameteriv retrieve information about a bound renderbuffer object
glGetSamplerParameter return sampler parameter values
glGetSeparableFilter get separable convolution filter kernel images
glGetShader Returns a parameter from a shader object
glGetShaderInfoLog Returns the information log for a shader object
glGetShaderPrecisionFormat retrieve the range and precision for numeric formats supported by the shader compiler
glGetShaderSource Returns the source code string from a shader object
glGetString return a string describing the current GL connection
glGetSubroutineIndex retrieve the index of a subroutine uniform of a given shader stage within a program
glGetSubroutineUniformLocation retrieve the location of a subroutine uniform of a given shader stage within a program
glGetSynciv query the properties of a sync object
glGetTexEnv return texture environment parameters
glGetTexGen return texture coordinate generation parameters
glGetTexImage return a texture image
glGetTexLevelParameter return texture parameter values for a specific level of detail
glGetTexParameter return texture parameter values
glGetTransformFeedbackVarying retrieve information about varying variables selected for transform feedback
glGetUniform Returns the value of a uniform variable
glGetUniformBlockIndex retrieve the index of a named uniform block
glGetUniformIndices retrieve the index of a named uniform block
glGetUniformLocation Returns the location of a uniform variable
glGetUniformSubroutine retrieve the value of a subroutine uniform of a given shader stage of the current program
glGetVertexAttrib Return a generic vertex attribute parameter
glGetVertexAttribPointerv return the address of the specified generic vertex attribute pointer
glHint specify implementation-specific hints
glHistogram define histogram table
glIndex set the current color index
glIndexMask control the writing of individual bits in the color index buffers
glIndexPointer define an array of color indexes
glInitNames initialize the name stack
glInterleavedArrays simultaneously specify and enable several interleaved arrays
glInvalidateBufferData invalidate the content of a buffer object's data store
glInvalidateBufferSubData invalidate a region of a buffer object's data store
glInvalidateFramebuffer invalidate the content some or all of a framebuffer object's attachments
glInvalidateSubFramebuffer invalidate the content of a region of some or all of a framebuffer object's attachments
glInvalidateTexImage invalidate the entirety a texture image
glInvalidateTexSubImage invalidate a region of a texture image
glIsBuffer determine if a name corresponds to a buffer object
glIsEnabled test whether a capability is enabled
glIsFramebuffer determine if a name corresponds to a framebuffer object
glIsList determine if a name corresponds to a display list
glIsProgram Determines if a name corresponds to a program object
glIsProgramPipeline determine if a name corresponds to a program pipeline object
glIsQuery determine if a name corresponds to a query object
glIsRenderbuffer determine if a name corresponds to a renderbuffer object
glIsSampler determine if a name corresponds to a sampler object
glIsShader Determines if a name corresponds to a shader object
glIsSync determine if a name corresponds to a sync object
glIsTexture determine if a name corresponds to a texture
glIsTransformFeedback determine if a name corresponds to a transform feedback object
glIsVertexArray determine if a name corresponds to a vertex array object
glLight set light source parameters
glLightModel set the lighting model parameters
glLineStipple specify the line stipple pattern
glLineWidth specify the width of rasterized lines
glLinkProgram Links a program object
glListBase set the display-list base for
glLoadIdentity replace the current matrix with the identity matrix
glLoadMatrix replace the current matrix with the specified matrix
glLoadName load a name onto the name stack
glLoadTransposeMatrix replace the current matrix with the specified row-major ordered matrix
glLogicOp specify a logical pixel operation for rendering
glMap1 define a one-dimensional evaluator
glMap2 define a two-dimensional evaluator
glMapBuffer map a buffer object's data store
glMapBufferRange map a section of a buffer object's data store
glMapGrid define a one- or two-dimensional mesh
glMaterial specify material parameters for the lighting model
glMatrixMode specify which matrix is the current matrix
glMemoryBarrier defines a barrier ordering memory transactions
glMinSampleShading specifies minimum rate at which sample shaing takes place
glMinmax define minmax table
glMultMatrix multiply the current matrix with the specified matrix
glMultTransposeMatrix multiply the current matrix with the specified row-major ordered matrix
glMultiDrawArrays render multiple sets of primitives from array data
glMultiDrawArraysIndirect render multiple sets of primitives from array data, taking parameters from memory
glMultiDrawElements render multiple sets of primitives by specifying indices of array data elements
glMultiDrawElementsBaseVertex render multiple sets of primitives by specifying indices of array data elements and an index to apply to each index
glMultiDrawElementsIndirect render indexed primitives from array data, taking parameters from memory
glMultiTexCoord set the current texture coordinates
glNewList create or replace a display list
glNormal set the current normal vector
glNormalPointer define an array of normals
glObjectLabel label a named object identified within a namespace
glObjectPtrLabel label a a sync object identified by a pointer
glOrtho multiply the current matrix with an orthographic matrix
glPassThrough place a marker in the feedback buffer
glPatchParameter specifies the parameters for patch primitives
glPauseTransformFeedback pause transform feedback operations
glPixelMap set up pixel transfer maps
glPixelStore set pixel storage modes
glPixelTransfer set pixel transfer modes
glPixelZoom specify the pixel zoom factors
glPointParameter specify point parameters
glPointSize specify the diameter of rasterized points
glPolygonMode select a polygon rasterization mode
glPolygonOffset set the scale and units used to calculate depth values
glPolygonStipple set the polygon stippling pattern
glPopDebugGroup pop the active debug group
glPrimitiveRestartIndex specify the primitive restart index
glPrioritizeTextures set texture residence priority
glProgramBinary load a program object with a program binary
glProgramParameter specify a parameter for a program object
glProgramUniform Specify the value of a uniform variable for a specified program object
glProvokingVertex specifiy the vertex to be used as the source of data for flat shaded varyings
glPushAttrib push and pop the server attribute stack
glPushClientAttrib push and pop the client attribute stack
glPushDebugGroup push a named debug group into the command stream
glPushMatrix push and pop the current matrix stack
glPushName push and pop the name stack
glQueryCounter record the GL time into a query object after all previous commands have reached the GL server but have not yet necessarily executed.
glRasterPos specify the raster position for pixel operations
glReadBuffer select a color buffer source for pixels
glReadPixels read a block of pixels from the frame buffer
glRect draw a rectangle
glReleaseShaderCompiler release resources consumed by the implementation's shader compiler
glRenderMode set rasterization mode
glRenderbufferStorage establish data storage, format and dimensions of a renderbuffer object's image
glRenderbufferStorageMultisample establish data storage, format, dimensions and sample count of a renderbuffer object's image
glResetHistogram reset histogram table entries to zero
glResetMinmax reset minmax table entries to initial values
glResumeTransformFeedback resume transform feedback operations
glRotate multiply the current matrix by a rotation matrix
glSampleCoverage specify multisample coverage parameters
glSampleMaski set the value of a sub-word of the sample mask
glSamplerParameter set sampler parameters
glScale multiply the current matrix by a general scaling matrix
glScissor define the scissor box
glScissorArray define the scissor box for multiple viewports
glScissorIndexed define the scissor box for a specific viewport
glSecondaryColor set the current secondary color
glSecondaryColorPointer define an array of secondary colors
glSelectBuffer establish a buffer for selection mode values
glSeparableFilter2D define a separable two-dimensional convolution filter
glShadeModel select flat or smooth shading
glShaderBinary load pre-compiled shader binaries
glShaderSource Replaces the source code in a shader object
glShaderStorageBlockBinding change an active shader storage block binding
glStencilFunc set front and back function and reference value for stencil testing
glStencilFuncSeparate set front and/or back function and reference value for stencil testing
glStencilMask control the front and back writing of individual bits in the stencil planes
glStencilMaskSeparate control the front and/or back writing of individual bits in the stencil planes
glStencilOp set front and back stencil test actions
glStencilOpSeparate set front and/or back stencil test actions
glTexBuffer attach the storage for a buffer object to the active buffer texture
glTexBufferRange bind a range of a buffer's data store to a buffer texture
glTexCoord set the current texture coordinates
glTexCoordPointer define an array of texture coordinates
glTexEnv set texture environment parameters
glTexGen control the generation of texture coordinates
glTexImage1D specify a one-dimensional texture image
glTexImage2D specify a two-dimensional texture image
glTexImage2DMultisample establish the data storage, format, dimensions, and number of samples of a multisample texture's image
glTexImage3D specify a three-dimensional texture image
glTexImage3DMultisample establish the data storage, format, dimensions, and number of samples of a multisample texture's image
glTexParameter set texture parameters
glTexStorage1D simultaneously specify storage for all levels of a one-dimensional texture
glTexStorage2D simultaneously specify storage for all levels of a two-dimensional or one-dimensional array texture
glTexStorage2DMultisample specify storage for a two-dimensional multisample texture
glTexStorage3D simultaneously specify storage for all levels of a three-dimensional, two-dimensional array or cube-map array texture
glTexStorage3DMultisample specify storage for a two-dimensional multisample array texture
glTexSubImage1D specify a one-dimensional texture subimage
glTexSubImage2D specify a two-dimensional texture subimage
glTexSubImage3D specify a three-dimensional texture subimage
glTextureView initialize a texture as a data alias of another texture's data store
glTransformFeedbackVaryings specify values to record in transform feedback buffers
glTranslate multiply the current matrix by a translation matrix
glUniform Specify the value of a uniform variable for the current program object
glUniformBlockBinding assign a binding point to an active uniform block
glUniformSubroutines load active subroutine uniforms
glUseProgram Installs a program object as part of current rendering state
glUseProgramStages bind stages of a program object to a program pipeline
glValidateProgram Validates a program object
glValidateProgramPipeline validate a program pipeline object against current GL state
glVertex specify a vertex
glVertexAttrib Specifies the value of a generic vertex attribute
glVertexAttribBinding associate a vertex attribute and a vertex buffer binding
glVertexAttribDivisor modify the rate at which generic vertex attributes advance during instanced rendering
glVertexAttribFormat specify the organization of vertex arrays
glVertexAttribPointer define an array of generic vertex attribute data
glVertexBindingDivisor modify the rate at which generic vertex attributes advance
glVertexPointer define an array of vertex data
glViewport set the viewport
glViewportArray set multiple viewports
glViewportIndexed set a specified viewport
glWaitSync instruct the GL server to block until the specified sync object becomes signaled
glWindowPos specify the raster position in window coordinates for pixel operations
gl_ClipDistance provides a forward-compatible mechanism for vertex clipping
gl_FragCoord contains the window-relative coordinates of the current fragment
gl_FragDepth establishes a depth value for the current fragment
gl_FrontFacing indicates whether a primitive is front or back facing
gl_GlobalInvocationID contains the global index of work item currently being operated on by a compute shader
gl_InstanceID contains the index of the current primitive in an instanced draw command
gl_InvocationID contains the invocation index of the current shader
gl_Layer contains the selected layer of a multi-layer framebuffer attachment
gl_LocalInvocationID contains the index of work item currently being operated on by a compute shader
gl_LocalInvocationIndex contains the local linear index of work item currently being operated on by a compute shader
gl_NumSamples contains the total number of samples in the framebuffer
gl_NumWorkGroups contains the number of workgroups that have been dispatched to a compute shader
gl_PatchVerticesIn contains the number of vertices in the current patch
gl_PointCoord contains the coordinate of a fragment within a point
gl_PointSize contains size of rasterized points, in pixels
gl_Position contains the position of the current vertex
gl_PrimitiveID contains the index of the current primitive
gl_PrimitiveIDIn contains the index of the current primitive
gl_SampleID contains the index of the sample currently being processed
gl_SampleMask specifies the sample coverage mask for the current fragment
gl_SampleMaskIn contains the computed sample coverage mask for the current fragment
gl_SamplePosition contains the location of the current sample within the current fragment
gl_TessCoord contains the coordinate of the vertex within the current patch
gl_TessLevelInner contains the inner tessellation levels for the current patch
gl_TessLevelOuter contains the outer tessellation levels for the current patch
gl_VertexID contains the index of the current vertex
gl_ViewportIndex contains the index of the viewport to be used in viewport transformation and scissoring
gl_WorkGroupID contains the index of the workgroup currently being operated on by a compute shader
gl_WorkGroupSize contains the size of the workgroup operated on by a compute shader

GLU Reference

FunctionPurpose
gluBeginCurve delimit a NURBS curve definition
gluBeginPolygon delimit a polygon description
gluBeginSurface delimit a NURBS surface definition
gluBeginTrim delimit a NURBS trimming loop definition
gluBuild1DMipmapLevels builds a subset of one-dimensional mipmap levels
gluBuild1DMipmaps builds a one-dimensional mipmap
gluBuild2DMipmapLevels builds a subset of two-dimensional mipmap levels
gluBuild2DMipmaps builds a two-dimensional mipmap
gluBuild3DMipmapLevels builds a subset of three-dimensional mipmap levels
gluBuild3DMipmaps builds a three-dimensional mipmap
gluCheckExtension determines if an extension name is supported
gluCylinder draw a cylinder
gluDeleteNurbsRenderer destroy a NURBS object
gluDeleteQuadric destroy a quadrics object
gluDeleteTess destroy a tessellation object
gluDisk draw a disk
gluErrorString produce an error string from a GL or GLU error code
gluGetNurbsProperty get a NURBS property
gluGetString return a string describing the GLU version or GLU extensions
gluGetTessProperty get a tessellation object property
gluLoadSamplingMatrices load NURBS sampling and culling matrices
gluLookAt define a viewing transformation
gluNewNurbsRenderer create a NURBS object
gluNewQuadric create a quadrics object
gluNewTess create a tessellation object
gluNextContour mark the beginning of another contour
gluNurbsCallback define a callback for a NURBS object
gluNurbsCallbackData set a user data pointer
gluNurbsCallbackDataEXT set a user data pointer
gluNurbsCurve define the shape of a NURBS curve
gluNurbsProperty set a NURBS property
gluNurbsSurface define the shape of a NURBS surface
gluOrtho2D define a 2D orthographic projection matrix
gluPartialDisk draw an arc of a disk
gluPerspective set up a perspective projection matrix
gluPickMatrix define a picking region
gluProject map object coordinates to window coordinates
gluPwlCurve describe a piecewise linear NURBS trimming curve
gluQuadricCallback define a callback for a quadrics object
gluQuadricDrawStyle specify the draw style desired for quadrics
gluQuadricNormals specify what kind of normals are desired for quadrics
gluQuadricOrientation specify inside/outside orientation for quadrics
gluQuadricTexture specify if texturing is desired for quadrics
gluScaleImage scale an image to an arbitrary size
gluSphere draw a sphere
gluTessBeginContour delimit a contour description
gluTessBeginPolygon delimit a polygon description
gluTessCallback define a callback for a tessellation object
gluTessEndPolygon delimit a polygon description
gluTessNormal specify a normal for a polygon
gluTessProperty set a tessellation object property
gluTessVertex specify a vertex on a polygon
gluUnProject map window coordinates to object coordinates
gluUnProject4 map window and clip coordinates to object coordinates

GLUT Reference

FunctionPurpose
glutAddMenuEntry adds a menu entry to the bottom of the current menu.
glutAddSubMenu adds a sub-menu trigger to the bottom of the current menu.
glutAttachMenu attaches/detaches a mouse button for the current window to the identifier of the current menu
glutBitmapCharacter renders a bitmap character using OpenGL.
glutBitmapWidth returns the width/length of a bitmap character/string.
glutButtonBoxFunc sets the dial & button box button callback for the current window.
glutChangeToMenuEntry changes the specified menu item in the current menu into a menu entry.
glutChangeToSubMenu changes the specified menu item in the current menu into a sub-menu trigger.
glutCopyColormap copies the logical colormap for the layer in use from a specified window to the current window.
glutCreateMenu creates a new pop-up menu.
glutCreateSubWindow creates a subwindow.
glutCreateWindow creates a top-level window.
glutDestroyMenu destroys the specified menu.
glutDestroyWindow destroys the specified window.
glutDeviceGet retrieves GLUT device information represented by integers.
glutDialsFunc sets the dial & button box dials callback for the current window.
glutDisplayFunc sets the display callback for the current window.
glutEnterGameMode enters and leaves GLUT's game mode.
glutEntryFunc sets the mouse enter/leave callback for the current window.
glutEstablishOverlay establishes an overlay (if possible) for the current window.
glutExtensionSupported helps to easily determine whether a given OpenGL extension is supported.
glutForceJoystickFunc forces current window's joystick callback to be called.
glutFullScreen requests that the current window be made full screen.
glutGameModeGet retrieves GLUT game mode information represented by integers.
glutGameModeString sets the game mode configuration via a string.
glutGet retrieves simple GLUT state represented by integers.
glutGetColor retrieves a red, green, or blue component for a given color index colormap entry for the layer in use's logical colormap for the current window.
glutGetModifiers returns the modifier key state when certain callbacks were generated.
glutIdleFunc sets the global idle callback.
glutIgnoreKeyRepeat determines if auto repeat keystrokes are reported to the current window
glutInit initialize the GLUT library.
glutInitDisplayMode sets the initial display mode.
glutInitDisplayString sets the initial display mode via a string.
glutInitWindowPosition set the initial window position and size respectively.
glutJoystickFunc sets the joystick callback for the current window.
glutKeyboardFunc sets the keyboard callback for the current window.
glutKeyboardUpFunc sets the keyboard up (key release) callback for the current window.
glutLayerGet retrieves GLUT state pertaining to the layers of the current window.
glutMainLoop enters the GLUT event processing loop.
glutMenuStatusFunc sets the global menu status callback.
glutMotionFunc set the motion and passive motion callbacks respectively for the current window.
glutMouseFunc sets the mouse callback for the current window.
glutOverlayDisplayFunc sets the overlay display callback for the current window.
glutPopWindow change the stacking order of the current window relative to its siblings.
glutPositionWindow requests a change to the position of the current window.
glutPostOverlayRedisplay marks the overlay of the current or specified window as needing to be redisplayed.
glutPostRedisplay marks the current or specified window as needing to be redisplayed.
glutRemoveMenuItem remove the specified menu item.
glutRemoveOverlay removes the overlay (if one exists) from the current window.
glutReportErrors for debugging purposes; prints out OpenGL run-time errors.
glutReshapeFunc sets the reshape callback for the current window.
glutReshapeWindow requests a change to the size of the current window.
glutSetColor sets the color of a colormap entry in the layer of use for the current window.
glutSetCursor changes the cursor image of the current window.
glutSetKeyRepeat sets the key repeat mode
glutSetMenu set/get the current menu
glutSetWindow set/get the current window
glutSetWindowTitle change the window or icon title respectively of the current top-level window.
glutShowOverlay shows or hides the overlay of the current window
glutShowWindow change the display status of the current window.
glutSolidCone render a solid or wireframe cone respectively.
glutSolidCube render a solid or wireframe cube respectively.
glutSolidDodecahedron render a solid or wireframe dodecahedron (12-sided regular solid) respectively.
glutSolidIcosahedron render a solid or wireframe icosahedron (20-sided regular solid) respectively.
glutSolidOctahedron render a solid or wireframe octahedron (8-sided regular solid) respectively.
glutSolidSphere render a solid or wireframe sphere respectively.
glutSolidTeapot render a solid or wireframe teapot respectively.
glutSolidTetrahedron render a solid or wireframe tetrahedron (4-sided regular solid) respectively.
glutSolidTorus render a solid or wireframe torus (doughnut) respectively.
glutSpaceballButtonFunc sets the Spaceball button callback for the current window.
glutSpaceballMotionFunc sets the Spaceball motion callback for the current window.
glutSpaceballRotateFunc sets the Spaceball rotation callback for the current window.
glutSpecialFunc sets the special keyboard callback for the current window.
glutSpecialUpFunc sets the special keyboard up (key release) callback for the current window.
glutStrokeCharacter renders a stroke character using OpenGL.
glutStrokeWidth returns the width/length of a stroke character/string.
glutSwapBuffers swaps the buffers of the current window if double buffered.
glutTabletButtonFunc sets the special keyboard callback for the current window.
glutTabletMotionFunc sets the special keyboard callback for the current window.
glutTimerFunc registers a timer callback to be triggered in a specified number of milliseconds.
glutUseLayer changes the layer in use for the current window.
glutVideoResizeGet retrieves GLUT video resize information represented by integers.
glutVisibilityFunc sets the visibility callback for the current window.
glutWarpPointer glutWarpPointer warps the pointer's location.
glutWindowStatusFunc sets the window status callback for the current window.

GLE Reference

FunctionPurpose
gleExtrusion Extrude arbitrary 2D contour along arbitrary 3D path.
gleHelicoid Generalized torus, spiral with circle contour.
gleLathe Sweep using a Z-axis shear to create an arbitrary contour along a helical path.
glePolyCone Draw polycone, specified as a polyline with radii.
glePolyCylinder Draw polycylinder, specified as a polyline.
gleScrew Draws screw-type shapes.
gleSetJoinStyle Query and Set the GLE join style flags.
gleSetNumSides Query and Set the cylinder roundness.
gleSpiral Sweep an arbitrary contour along a helical path.
gleSuperExtrusion Extrude arbitrary 2D contour along arbitrary 3D path, specifying local affine transformations.
gleTextureMode set the type of GLE automatic texture coordinate generation.
gleToroid Generalized torus, lathe with circle contour.
gleTwistExtrusion Extrude arbitrary 2D contour along arbitrary 3D path, specifying local rotations (twists).

GLX Reference

FunctionPurpose
glXChooseFBConfig return a list of GLX frame buffer configurations that match the specified attributes
glXChooseVisual return a visual that matches specified attributes
glXCopyContext copy state from one rendering context to another
glXCreateContext create a new GLX rendering context
glXCreateGLXPixmap create an off-screen GLX rendering area
glXCreateNewContext create a new GLX rendering context
glXCreatePbuffer create an off-screen rendering area
glXCreatePixmap create an off-screen rendering area
glXCreateWindow create an on-screen rendering area
glXDestroyContext destroy a GLX context
glXDestroyGLXPixmap destroy a GLX pixmap
glXDestroyPbuffer destroy an off-screen rendering area
glXDestroyPixmap destroy an off-screen rendering area
glXDestroyWindow destroy an on-screen rendering area
glXFreeContextEXT free client-side memory for imported context
glXGetClientString return a string describing the client
glXGetConfig return information about GLX visuals
glXGetContextIDEXT get the XID for a context.
glXGetCurrentContext return the current context
glXGetCurrentDisplay get display for current context
glXGetCurrentDrawable return the current drawable
glXGetCurrentReadDrawable return the current drawable
glXGetFBConfigAttrib return information about a GLX frame buffer configuration
glXGetFBConfigs list all GLX frame buffer configurations for a given screen
glXGetProcAddress obtain a pointer to an OpenGL or GLX function
glXGetSelectedEvent returns GLX events that are selected for a window or a GLX pixel buffer
glXGetVisualFromFBConfig return visual that is associated with the frame buffer configuration
glXImportContextEXT import another process's indirect rendering context.
glXIntro Introduction to OpenGL in the X window system
glXIsDirect indicate whether direct rendering is enabled
glXMakeContextCurrent attach a GLX context to a GLX drawable
glXMakeCurrent attach a GLX context to a window or a GLX pixmap
glXQueryContext query context information
glXQueryContextInfoEXT query context information
glXQueryDrawable returns an attribute assoicated with a GLX drawable
glXQueryExtension indicate whether the GLX extension is supported
glXQueryExtensionsString return list of supported extensions
glXQueryServerString return string describing the server
glXQueryVersion return the version numbers of the GLX extension
glXSelectEvent select GLX events for a window or a GLX pixel buffer
glXSwapBuffers exchange front and back buffers
glXUseXFont create bitmap display lists from an X font
glXWaitGL complete GL execution prior to subsequent X calls
glXWaitX complete X execution prior to subsequent GL calls

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