GL Functions

The OpenGL commands, in alphabetical order are presented here. Each reference page describes one or more function. See also GLU Functions.

Function	Description
glAccum	Operates on the accumulation buffer.
glAddSwapHintRectWIN	Specifies a set of rectangles that are to be copied by SwapBuffers.
glAlphaFunc	Enables your application to set the alpha test function.
glAreTexturesResident	Determines whether specified texture objects are resident in texture memory.
glArrayElement	Specifies the array elements used to render a vertex.
glBegin, glEnd	Delimit the vertices of a primitive or a group of like primitives.
glBindTexture	Enables the creation of a named texture that is bound to a texture target.
glBitmap	Draws a bitmap.
glBlendFunc	Specifies pixel arithmetic.
glCallList	Executes a display list.
glCallLists	Executes a list of display lists.
glClear	Clears buffers to preset values.
glClearAccum	Specifies the clear values for the accumulation buffer.
glClearColor	Specifies clear values for the color buffers.
glClearDepth	Specifies the clear value for the depth buffer.
glClearIndex	Specifies the clear value for the color-index buffers.
glClearStencil	Specifies the clear value for the stencil buffer.
glClipPlane	Specifies a plane against which all geometry is clipped.
glColor functions	Set the current color.
glColorMask	Enables and disables writing of frame-buffer color components.
glColorMaterial	Causes a material color to track the current color.
glColorPointer	Defines an array of colors.
glColorTableEXT	Specifies the format and size of a palette for targeted paletted textures.
glColorSubTableEXT	Specifies a portion of the targeted texture's palette to be replaced.
glCopyPixels	Copies pixels in the framebuffer.
glCopyTexImage1D	Copies pixels from the framebuffer into a one-dimensional texture image.
glCopyTexImage2D	Copies pixels from the framebuffer into a two-dimensional texture image.
glCopyTexSubImage1D	Copies a sub-image of a one-dimensional texture image from the framebuffer.
glCopyTexSubImage2D	Copies a sub-image of a two-dimensional texture image from the framebuffer.
glCullFace	Specifies whether front- or back-facing facets can be culled.
glDeleteLists	Deletes a contiguous group of display lists.
glDeleteTextures	Deletes named textures.
glDepthFunc	Specifies the value used for depth-buffer comparisons.
glDepthMask	Enables or disables writing into the depth buffer.
glDepthRange	Specifies the mapping of z values from normalized device coordinates to window coordinates.
glDrawArrays	Specifies multiple primitives to render.
glDrawBuffer	Specifies which color buffers are to be drawn into.
glDrawElements	Renders primitives from array data.
glDrawPixels	Writes a block of pixels to the framebuffer.
glEdgeFlag functions	Define an array of edge flags.
glEdgeFlagPointer	Defines an array of edge flags.
glEnable, glDisable	Enables or disables OpenGL capabilities.
glEnableClientState, glDisableClientState	Enables and disables arrays, respectively.
glEvalCoord functions	Evaluate enabled one- and two-dimensional maps.
glEvalMesh functions	Compute a one- or two-dimensional grid of points or lines.
glEvalPoint functions	Generate and evaluate a single point in a mesh.
glFeedbackBuffer	Controls feedback mode.
glFinish	Blocks until all OpenGL execution is complete.
glFlush	Forces execution of OpenGL functions in finite time.
glFog functions	Specify fog parameters.
glFrontFace	Defines front- and back-facing polygons.
glFrustum	Multiplies the current matrix by a perspective matrix.
glGenLists	Generates a contiguous set of empty display lists.
glGenTextures	Generates texture names.
glGetBooleanv	Retrieves the value or values of a selected Boolean parameter.
glGetClipPlane	Retrieves the coefficients of the specified clipping plane.
glGetColorTableEXT	Retrieves the color table data of the current targeted texture palette.
glGetColorTableParameterfvEXT, glGetColorTableParameterivEXT	Retrieves palette parameters from color tables.
glGetDoublev	Retrieves the value or values of a selected double parameter.
glGetError	Retrieves error information.
glGetFloatv	Retrieves the value or values of a selected float parameter.
glGetIntegerv	Retrieves the value or values of a selected int parameter.
glGetLight functions	Retrieve light source parameter values.
glGetMap functions	Retrieve evaluator parameters.
glGetMaterial functions	Retrieve material parameters.
glGetPixelMap functions	Retrieve the specified pixel map.
glGetPointerv	Retrieves the address of a vertex data array.
glGetPolygonStipple	Retrieves the polygon stipple pattern.
glGetString	Retrieves a string describing the current OpenGL connection.
glGetTexEnv functions	Retrieve texture environment parameters.
glGetTexGen functions	Retrieve texture coordinate generation parameters.
glGetTexImage	Retrieves a texture image.
glGetTexLevelParameter functions	Retrieve texture parameter values for a specific level of detail.
glGetTexParameter functions	Retrieve texture parameter values.
glHint	Specifies implementation-specific hints.
glIndex functions	Set the current color index.
glIndexMask	Controls the writing of individual bits in the color-index buffers.
glIndexPointer	Defines an array of color indexes.
glInitNames	Initializes the name stack.
glInterleavedArrays	Simultaneously specifies and enables several interleaved arrays in a larger aggregate array.
glIsEnabled	Tests whether a capability is enabled.
glIsList	Tests for display list existence.
glIsTexture	Determines whether a name corresponds to a texture.
glLight functions	Set light-source parameters.
glLightModel functions	Set the lighting model parameters.
glLineStipple	Specifies the line stipple pattern.
glLineWidth	Specifies the width of rasterized lines.
glListBase	Sets the display list base for glCallLists.
glLoadIdentity	Replaces the current matrix with the identity matrix.
glLoadMatrix functions	Replace the current matrix with an arbitrary matrix.
glLoadName	Loads a name onto the name stack.
glLogicOp	Specifies a logical pixel operation for color index rendering.
glMap1 functions	Define a one-dimensional evaluator.
glMap2 functions	Define a two-dimensional evaluator.
glMapGrid functions	Define a one- or two-dimensional mesh.
glMaterial functions	Specify material parameters for the lighting model.
glMatrixMode	Specifies which matrix is the current matrix.
glMultMatrix functions	Multiply the current matrix by an arbitrary matrix.
glNewList, glEndList	Create or replace a display list.
glNormal functions	Set the current normal vector.
glNormalPointer	Defines an array of normals.
glOrtho	Multiplies the current matrix by an orthographic matrix.
glPassThrough	Places a marker in the feedback buffer.
glPixelMap functions	Set up pixel transfer maps.
glPixelStore functions	Set pixel storage modes.
glPixelTransfer functions	Set pixel transfer modes.
glPixelZoom	Specifies the pixel zoom factors.
glPointSize	Specifies the diameter of rasterized points.
glPolygonMode	Selects a polygon rasterization mode.
glPolygonOffset	Sets the scale and units OpenGL uses to calculate depth values.
glPolygonStipple	Sets the polygon stippling pattern.
glPrioritizeTextures	Sets the residence priority of textures.
glPushAttrib, glPopAttrib	Push and pop the attribute stack.
glPushClientAttrib, glPopClientAttrib	Save and restore groups of client-state variables on the client-attribute stack.
glPushMatrix, glPopMatrix	Push and pop the current matrix stack, respectively.
glPushName, glPopName	Push and pop the name stack, respectively.
glRasterPos functions	Specify the raster position for pixel operations.
glReadBuffer	Slects a color buffer source for pixels.
glReadPixels	Reads a block of pixels from the framebuffer.
glRect functions	Draw a rectangle.
glRenderMode	Sets the rasterization mode.
glRotate functions	Multiply the current matrix by a rotation matrix.
glScale functions	Multiply the current matrix by a general scaling matrix.
glScissor	Defines the scissor box.
glSelectBuffer	Establishes a buffer for selection mode values.
glShadeModel	Selects flat or smooth shading.
glStencilFunc	Sets the function and reference value for stencil testing.
glStencilMask	Controls the writing of individual bits in the stencil planes.
glStencilOp	Sets the stencil test actions.
glTexCoord functions	Set the current texture coordinates.
glTexCoordPointer	Defines an array of texture coordinates.
glTexEnv functions	Set texture environment parameters.
glTexGen functions	Control the generation of texture coordinates.
glTexImage1D	Specifies a one-dimensional texture image.
glTexImage2D	Specifies a two-dimensional texture image.
glTexParameter functions	Set texture parameters.
glTexSubImage1D	Specifies a portion of an existing one-dimensional texture image. You cannot define a new texture with this function.
glTexSubImage2D	Specifies a portion of an existing two-dimensional texture image. You cannot define a new texture with this function.
glTranslate functions	Multiply the current matrix by a translation matrix.
glVertex	These functions specify a vertex.
glVertexPointer	Defines an array of vertex data.
glViewport	Sets the viewport.