OpenGL Functions

OpenGL

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	The glAccum function operates on the accumulation buffer.
glAddSwapHintRectWIN	The glAddSwapHintRectWIN function specifies a set of rectangles that are to be copied by SwapBuffers.
glAlphaFunc	The glAlphaFunc function enables your application to set the alpha test function.
glAreTexturesResident	The glAreTexturesResident function determines whether specified texture objects are resident in texture memory.
glArrayElement	The glArrayElement function specifies the array elements used to render a vertex.
glBegin, glEnd	The glBegin and glEnd functions delimit the vertices of a primitive or a group of like primitives.
glBindTexture	The glBindTexture function enables the creation of a named texture that is bound to a texture target.
glBitmap	The glBitmap function draws a bitmap.
glBlendFunc	The glBlendFunc function specifies pixel arithmetic.
glCallList	The glCallList function executes a display list.
glCallLists	The glCallLists function executes a list of display lists.
glClear	The glClear function clears buffers to preset values.
glClearAccum	The glClearAccum function specifies the clear values for the accumulation buffer.
glClearColor	The glClearColor function specifies clear values for the color buffers.
glClearDepth	The glClearDepth function specifies the clear value for the depth buffer.
glClearIndex	The glClearIndex function specifies the clear value for the color-index buffers.
glClearStencil	The glClearStencil function specifies the clear value for the stencil buffer.
glClipPlane	The glClipPlane function specifies a plane against which all geometry is clipped.
glColor	These functions set the current color.
glColorMask	The glColorMask function enables and disables writing of frame-buffer color components.
glColorMaterial	The glColorMaterial function causes a material color to track the current color.
glColorPointer	The glColorPointer function defines an array of colors.
glColorTableEXT	The glColorTableEXT function specifies the format and size of a palette for targeted paletted textures.
glColorSubTableEXT	The glColorSubTableEXT function specifies a portion of the targeted texture's palette to be replaced.
glCopyPixels	The glCopyPixels function copies pixels in the framebuffer.
glCopyTexImage1D	The glCopyTexImage1D function copies pixels from the framebuffer into a one-dimensional texture image.
glCopyTexImage2D	The glCopyTexImage2D function copies pixels from the framebuffer into a two-dimensional texture image.
glCopyTexSubImage1D	The glCopyTexSubImage1D function copies a sub-image of a one-dimensional texture image from the framebuffer.
glCopyTexSubImage2D	The glCopyTexSubImage2D function copies a sub-image of a two-dimensional texture image from the framebuffer.
glCullFace	The glCullFace function specifies whether front- or back-facing facets can be culled.
glDeleteLists	The glDeleteLists function deletes a contiguous group of display lists.
glDeleteTextures	The glDeleteTextures function deletes named textures.
glDepthFunc	The glDepthFunc function specifies the value used for depth-buffer comparisons.
glDepthMask	The glDepthMask function enables or disables writing into the depth buffer.
glDepthRange	The glDepthRange function specifies the mapping of z values from normalized device coordinates to window coordinates.
glDrawArrays	The glDrawArrays function specifies multiple primitives to render.
glDrawBuffer	The glDrawBuffer function specifies which color buffers are to be drawn into.
glDrawElements	The glDrawElements function renders primitives from array data.
glDrawPixels	The glDrawPixels function writes a block of pixels to the framebuffer.
glEdgeFlag	The glEdgeFlagPointer function defines an array of edge flags.
glEdgeFlagPointer	The glEdgeFlagPointer function defines an array of edge flags.
glEnable, glDisable	The glEnable and glDisable functions enable or disable OpenGL capabilities.
glEnableClientState, glDisableClientState	The glEnableClientState and glDisableClientState functions enable and disable arrays respectively.
glEvalCoord	These functions evaluate enabled one- and two-dimensional maps.
glEvalMesh1, glEvalMesh2	The glEvalMesh1 and glEvalMesh2 functions compute a one- or two-dimensional grid of points or lines.
glEvalPoint1, glEvalPoint2	The glEvalPoint1 and glEvalPoint2 functions generate and evaluate a single point in a mesh.
glFeedbackBuffer	The glFeedbackBuffer function controls feedback mode.
glFinish	The glFinish function blocks until all OpenGL execution is complete.
glFlush	The glFlush function forces execution of OpenGL functions in finite time.
glFogf, glFogi, glFogfv, glFogiv	These functions specify fog parameters.
glFrontFace	The glFrontFace function defines front- and back-facing polygons.
glFrustum	The glFrustum function multiplies the current matrix by a perspective matrix.
glGenLists	The glGenLists function generates a contiguous set of empty display lists.
glGenTextures	The glGenTextures function generates texture names.
glGetBooleanv, glGetDoublev, glGetFloatv, glGetIntegerv	These functions return the value or values of a selected parameter.
glGetClipPlane	The glGetClipPlane function returns the coefficients of the specified clipping plane.
glGetColorTableEXT	The glGetColorTableEXT function gets the color table data of the current targeted texture palette.
glGetColorTableParameterfvEXT, glGetColorTableParameterivEXT	The glGetColorTableParameterfvEXT and glGetColorTableParameterivEXT functions get palette parameters from color tables.
glGetError	The glGetError function returns error information.
glGetLightfv, glGetLightiv	The glGetLightfv and glGetLightiv functions return light source parameter values.
glGetMapdv, glGetMapfv, glGetMapiv	These functions return evaluator parameters.
glGetMaterialfv, glGetMaterialiv	The glGetMaterialfv and glGetMaterialiv functions return material parameters.
glGetPixelMapfv, glGetPixelMapuiv, glGetPixelMapusv	These functions return the specified pixel map.
glGetPointerv	The glGetPointerv function returns the address of a vertex data array.
glGetPolygonStipple	The glGetPolygonStipple function returns the polygon stipple pattern.
glGetString	The glGetString function returns a string describing the current OpenGL connection.
glGetTexEnvfv	The glGetTexEnvfv and glGetTexEnviv functions return texture environment parameters.
glGetTexGendv, glGetTexGenfv, glGetTexGeniv	These functions return texture coordinate generation parameters.
glGetTexImage	The glGetTexImage function returns a texture image.
glGetTexLevelParameterfv, glGetTexLevelParameteriv	The glGetTexLevelParameterfv and glGetTexLevelParameteriv functions return texture parameter values for a specific level of detail.
glGetTexParameterfv, glGetTexParameteriv	The glGetTexParameterfv and glGetTexParameteriv functions return texture parameter values.
glHint	The glHint function specifies implementation-specific hints.
glIndex	These functions set the current color index.
glIndexMask	The glIndexMask function controls the writing of individual bits in the color-index buffers.
glIndexPointer	The glIndexPointer function defines an array of color indexes.
glInitNames	The glInitNames function initializes the name stack.
glInterleavedArrays	The glInterleavedArrays function simultaneously specifies and enables several interleaved arrays in a larger aggregate array.
glIsEnabled	The gllsEnabled function tests whether a capability is enabled.
glIsList	The gllsList function tests for display list existence.
glIsTexture	The glIsTexture function determines if a name corresponds to a texture.
glLightf, glLighti, glLightfv, glLightiv	These functions set light-source parameters.
glLightModelf, glLightModeli, glLightModelfv, glLightModeliv	These functions set the lighting model parameters.
glLineStipple	The glLineStipple function specifies the line stipple pattern.
glLineWidth	The glLineWidth function specifies the width of rasterized lines.
glListBase	The glListBase function sets the display list base for glCallLists.
glLoadIdentity	The glLoadIdentity function replaces the current matrix with the identity matrix.
glLoadMatrixd, glLoadMatrixf	The glLoadMatrixd and glLoadMatrixf functions replace the current matrix with an arbitrary matrix.
glLoadName	The glLoadName function loads a name onto the name stack.
glLogicOp	The glLogicOp function specifies a logical pixel operation for color index rendering.
glMap1d, glMap1f	The glMap1d and glMap1f functions define a one-dimensional evaluator.
glMap2d, glMap2f	The glMap2d and glMap2f functions define a two-dimensional evaluator.
glMapGrid1d, glMapGrid1f, glMapGrid2d, glMapGrid2f	These functions define a one- or two-dimensional mesh.
glMaterialf, glMateriali, glMaterialfv, glMaterialiv	These functions specify material parameters for the lighting model.
glMatrixMode	The glMatrixMode function specifies which matrix is the current matrix.
glMultMatrixd, glMultMatrixf	The glMultMatrixd and glMultMatrixf functions multiply the current matrix by an arbitrary matrix.
glNewList, glEndList	The glNewList and glEndList functions create or replace a display list.
glNormal	These functions set the current normal vector.
glNormalPointer	The glNormalPointer function defines an array of normals.
glOrtho	The glOrtho function multiplies the current matrix by an orthographic matrix.
glPassThrough	The glPassThrough function places a marker in the feedback buffer.
glPixelMapfv, glPixelMapuiv, glPixelMapusv	These functions set up pixel transfer maps.
glPixelStoref, glPixelStorei	The glPixelStoref and glPixelStorei functions set pixel storage modes.
glPixelTransferf, glPixelTransferi	The glPixelTransferf and glPixelTransferi functions set pixel transfer modes.
glPixelZoom	The glPixelZoom function specifies the pixel zoom factors.
glPointSize	The glPointSize function specifies the diameter of rasterized points.
glPolygonMode	The glPolygonMode function selects a polygon rasterization mode.
glPolygonOffset	The glPolygonOffset function sets the scale and units OpenGL uses to calculate depth values.
glPolygonStipple	The glPolygonStipple function sets the polygon stippling pattern.
glPrioritizeTextures	The glPrioritizeTextures function sets the residence priority of textures.
glPushAttrib, glPopAttrib	The glPushAttrib and glPopAttrib functions push and pop the attribute stack.
glPushClientAttrib, glPopClientAttrib	The glPushClientAttrib and glPopClientAttrib functions save and restore groups of client-state variables on the client-attribute stack.
glPushMatrix, glPopMatrix	The glPushMatrix and glPopMatrix functions push and pop the current matrix stack.
glPushName, glPopName	The glPushName and glPopName functions push and pop the name stack.
glRasterPos	These functions specify the raster position for pixel operations.
glReadBuffer	The glReadBuffer function selects a color buffer source for pixels.
glReadPixels	The glReadPixels function reads a block of pixels from the framebuffer.
glRectd, glRectf, glRecti, glRects, glRectdv, glRectfv, glRectiv, glRectsv	These functions draw a rectangle.
glRenderMode	The glRenderMode function sets the rasterization mode.
glRotated, glRotatef	The glRotated and glRotatef functions multiply the current matrix by a rotation matrix.
glScaled, glScalef	The glScaled and glScalef functions multiply the current matrix by a general scaling matrix.
glScissor	The glScissor function defines the scissor box.
glSelectBuffer	The glSelectBuffer function establishes a buffer for selection mode values.
glShadeModel	The glShadeModel function selects flat or smooth shading.
glStencilFunc	The glStencilFunc function sets the function and reference value for stencil testing.
glStencilMask	The glStencilMask function controls the writing of individual bits in the stencil planes.
glStencilOp	The glStencilOp function sets the stencil test actions.
glTexCoord	These functions set the current texture coordinates.
glTexCoordPointer	The glTexCoordPointer function defines an array of texture coordinates.
glTexEnvf, glTexEnvi, glTexEnvfv, glTexEnviv	These functions set texture environment parameters.
glTexGend, glTexGenf, glTexGeni, glTexGendv, glTexGenfv, glTexGeniv	These functions control the generation of texture coordinates.
glTexImage1D	The glTexImage1D function specifies a one-dimensional texture image.
glTexImage2D	The glTexImage2D function specifies a two-dimensional texture image.
glTexParameterf, glTexParameteri, glTexParameterfv, glTexParameteriv	These functions set texture parameters.
glTexSubImage1D	The glTexSubImage1D function specifies a portion of an existing one-dimensional texture image. You cannot define a new texture with glTexSubImage1D.
glTexSubImage2D	The glTexSubImage2D function specifies a portion of an existing one-dimensional texture image. You cannot define a new texture with glTexSubImage2D.
glTranslated, glTranslatef	The glTranslated and glTranslatef functions multiply the current matrix by a translation matrix.
glVertex	These functions specify a vertex.
glVertexPointer	The glVertexPointer function defines an array of vertex data.
glViewport	The glViewport function sets the viewport.