Following is a list of the basic OpenGL subroutines and the purpose of each.
Select the subroutine you want to read about, read the OpenGL Overview, or see what's new in this release.
A | |
glAccum | Operates on the accumulation buffer. |
glAlphaFunc | Specifies the alpha test function. |
glAreTexturesResident | Determines if textures are loaded in texture memory. |
glAreTexturesResidentEXT | Determines if textures are loaded in texture memory. |
glArrayElement | Renders a vertex using the specified vertex array element. |
glArrayElementEXT | Renders a vertex using the specified vertex array element. |
B | |
glBegin or glEnd | Delimits the vertices of a primitive or group of like primitives. |
glBindTexture | Binds a named texture to a texturing target. |
glBindTextureEXT | Binds a named texture to a texturing target. |
glBitmap | Draws a bitmap. |
glBlendColor | Sets the blend color. |
glBlendColorEXT | Sets the blend color. |
glBlendEquation | Specifies the RGB color blend equation. |
glBlendEquationEXT | Specifies the RGB color blend equation. |
glBlendFunc | Specifies pixel arithmetic. |
C | |
glCallList | Executes a display list. |
glCallLists | Executes a list of display lists. |
glClear | Clears buffers within the viewport. |
glClearAccum | Specifies 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 | Sets the current color. |
glColorMask | Enables and disables the writing of frame buffer color components. |
glColorMaterial | Causes a material color to track the current color. |
glColorPointer | Defines an array of colors. |
glColorPointerEXT | Defines an array of colors. |
glColorPointerListIBM | Defines a list of color arrays. |
glCopyPixels | Copies pixels in the frame buffer. |
glCopyTexImage1D | Defines a one-dimensional (1D) texture image. |
glCopyTexImage2D | Defines a two-dimensional (2D) texture image. |
glCopyTexSubImage1D | Copies a one-dimensional (1D) texture subimage. |
glCopyTexSubImage2D | Copies a two-dimensional (2D) texture subimage. |
glCopyTexSubImage3D | Copies a three-dimensional (3D) texture subimage. |
glCopyTexSubImage3DEXT | Copies a three-dimensional (3D) texture subimage. |
glCullFace | Specifies whether frontfacing or backfacing facets may be culled. |
D | |
glDeleteLists | Deletes a contiguous group of display lists. |
glDeleteTextures | Deletes named textures. |
glDeleteTexturesEXT | Deletes named textures. |
glDepthFunc | Specifies the function 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. |
glDisable | Tests whether a capability is enabled. |
glDisableClientState | Disables an array. |
glDrawArrays | Renders primitives from array data. |
glDrawArraysEXT | Renders primitives from array data. |
glDrawBuffer | Specifies which color buffers are to be used for drawing. |
glDrawElements | Renders primitives from array data. |
glDrawPixels | Writes a block of pixels to the frame buffer. |
glDrawRangeElements | Renders primitives from array data. |
E | |
glEdgeFlag | Marks edges as either boundary or nonboundary. |
glEdgeFlagPointer | Defines an array of edge flags. |
glEdgeFlagPointerEXT | Defines an array of edge flags. |
glEdgeFlagPointerListIBM | Defines a list of edge flag arrays. |
glEnable or glDisable | Tests whether a capability is enabled. |
glEnableClientState or glDisableClientState |
Enables or disables an array. |
glEnd | Delimits the vertices of a primitive or group of like primitives. |
glEvalCoord | Evaluates enabled one-dimensional (1D) and two-dimensional (2D) maps. |
glEvalMesh | Computes a one-dimensional (1D) or two-dimensional (2D) grid of points or lines. |
glEvalPoint | Generates and evaluates a single point in a mesh. |
F | |
glFeedbackBuffer | Controls the feedback mode. |
glFinish | Blocks until all GL execution is complete. |
glFlush | Forces the running of GL subroutines in finite time. |
glFog | Specifies fog parameters. |
glFrontFace | Defines frontfacing and backfacing polygons. |
glFrustum | Multiplies the current matrix by a perspective matrix. |
G | |
glGenLists | Generates a contiguous set of empty display lists. |
glGenTextures | Generate texture names. |
glGenTexturesEXT | Generates texture names. |
glGet | Returns the value or values of a selected parameter. |
glGetClipPlane | Returns the coefficients of the clipping plane. |
glGetError | Returns error information. |
glGetLight | Returns light source parameter values. |
glGetMap | Returns evaluator parameters. |
glGetMaterial | Returns material parameters. |
glGetPixelMap | Returns the specified pixel map. |
glGetPointerv | Returns the address of the specified pointer. |
glGetPointervEXT | Returns the address of a vertex data array. |
glGetPolygonStipple | Returns the polygonstipple pattern. |
glGetString | Returns a string describing the current GL connection. |
glGetTexEnv | Returns texture environment parameters. |
glGetTexGen | Returns texture coordinate generation parameters. |
glGetTexImage | Returns a texture image. |
glGetTexLevelParameter | Returns texture parameter levels for a specific level of detail. |
glGetTexParameter | Returns texture parameter values. |
H | |
glHint | Specifies implementation-specific hints. |
I | |
glIndex | Sets the current color index. |
glIndexMask | Controls the writing of individual bits in the color index buffers. |
glIndexPointer | Defines an array of color indexes. |
glIndexPointerEXT | Defines an array of color indexes. |
glIndexPointerListIBM | Defines a list of color index arrays. |
glInitNames | Initializes the name stack. |
glInterleavedArrays | Simultaneously specifies and enables several interleaved arrays. |
glIsEnabled | Tests whether a capability is enabled. |
glIsList | Tests for display list existence. |
glIsTexture | Determines if a name corresponds to a texture. |
glIsTextureEXT | Determines if a name corresponds to a texture. |
L | |
glLight | Sets light source parameters. |
glLightModel | Sets the lighting model parameters. |
glLineStipple | Specifies the line stipple pattern. |
glLineWidth | Specifies the width of rasterized lines. |
glListBase | Sets the display-list base for the glCallLists subroutine. |
glLoadIdentity | Replaces the current matrix with the identity matrix. |
glLoadMatrix | Replaces the current matrix with an arbitrary matrix. |
glLoadName | Loads a name onto the name stack. |
glLockArraysEXT | Locks the currently enabled vertex arrays. |
glLogicOp | Specifies a logical pixel operation for color index rendering. |
M | |
glMap1 | Defines a one-dimensional (1D) evaluator. |
glMap2 | Defines a two-dimensional (2D) evaluator. |
glMapGrid | Defines a one-dimensional (1D) or two-dimensional (2D) mesh. |
glMaterial | Specifies material parameters for the lighting model. |
glMatrixMode | Specifies the current matrix. |
glMultiDrawArraysEXT | Renders multiple primitives from array data. |
glMultiDrawElementsEXT | Renders multiple primitives from array data. |
glMultiModeDrawArraysIBM | Renders primitives of multiple primitive types from array data. |
glMultMatrix | Multiplies the current matrix by an arbitrary matrix. |
N | |
glNewList | Creates or replaces a display list. |
glNormal | Sets the current normal vector. |
glNormalPointer | Defines an array of normals. |
glNormalPointerEXT | Defines an array of normals. |
glNormalPointerListIBM | Defines a list of normal arrays. |
O | |
glOrtho | Multiplies the current matrix by an orthographic matrix. |
P | |
glPassThrough | Places a marker in the feedback buffer. |
glPixelMap | Sets up pixel transfer maps. |
glPixelStore | Sets pixel storage modes. |
glPixelTransfer | Sets 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 bias used to calculate depth values. |
glPolygonOffsetEXT | Sets the scale and bias used to calculate z values. |
glPolygonStipple | Sets the polygon stippling pattern. |
glPrioritizeTextures | Sets texture residence priority. |
glPrioritizeTexturesEXT | Sets texture residence priority. |
glPushAttrib or glPopAttrib | Pushes and pops the attribute stack. |
glPushClientAttrib or glPopClientAttrib | Pushes and pops the attribute stack. |
glPushMatrix or glPopMatrix | Pushes and pops the current matrix stack. |
glPushName or glPopName | Pushes and pops the name stack. |
R | |
glRasterPos | Specifies the raster position for pixel operations. |
glReadBuffer | Selects a color buffer source for pixels. |
glReadPixels | Reads a block of pixels from the frame buffer. |
glRect | Draws a rectangle. |
glRenderMode | Sets rasterization mode. |
glRotate | Multiplies the current matrix by a rotation matrix. |
S | |
glScale | Multiplies 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 function and reference values for stencil testing. |
glStencilMask | Controls the writing of individual bits in the stencil planes. |
glStencilOp | Sets stencil test actions. |
T | |
glTexCoord | Sets the current texture coordinates. |
glTexCoordPointer | Defines an array of texture coordinates. |
glTexCoordPointerEXT | Defines an array of texture coordinates. |
glTexCoordPointerListIBM | Defines a list of texture coordinate arrays. |
glTexEnv | Sets texture environment parameters. |
glTexGen | Controls the generation of texture coordinates. |
glTexImage1D | Specifies a one-dimensional (1D) texture image. |
glTexImage2D | Specifies a two-dimensional (2D) texture image. |
glTexImage3D | Specifies a three-dimensional (3D) texture image. |
glTexImage3DEXT | Specifies a three-dimensional (3D) texture image. |
glTexParameter | Sets texture parameters. |
glTexSubImage1D | Specifies a one-dimensional (1D) texture subimage. |
glTexSubImage1DEXT | Specifies a one-dimensional (1D) texture subimage. |
glTexSubImage2D | Specifies a two-dimensional (2D) texture subimage. |
glTexSubImage2DEXT | Specifies a two-dimensional (2D) texture subimage. |
glTexSubImage3D | Specifies a three-dimensional (3D) texture subimage. |
glTexSubImage3DEXT | Specifies a three-dimensional (3D) texture subimage. |
glTranslate | Multiplies the current matrix by a translation matrix. |
U | |
glUnLockArraysEXT | Unlocks the currently enabled vertex arrays. |
V | |
glVertex | Specifies a vertex. |
glVertexPointer | Defines an array of vertex data. |
glVertexPointerEXT | Defines an array of vertex data. |
glVertexPointerListIBM | Defines a list of vertex arrays. |
glViewport | Sets the viewport. |