Extracted from Pike v7.8 release 866 at 2016-11-06.
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GL

Methods
 glAccum()
 glAlphaFunc()
 glArrayElement()
 glBegin()
 glBindTexture()
 glBlendFunc()
 glCallList()
 glClear()
 glClearAccum()
 glClearColor()
 glClearDepth()
 glClearIndex()
 glClearStencil()
 glColor()
 glColorMask()
 glColorMaterial()
 glCopyPixels()
 glCopyTexImage1D()
 glCopyTexImage2D()
 glCopyTexSubImage1D()
 glCopyTexSubImage2D()
 glCullFace()
 glDeleteLists()
 glDepthFunc()
 glDepthMask()
 glDepthRange()
 glDisable()
 glDisableClientState()
 glDrawArrays()
 glDrawBuffer()
 glDrawPixels()
 glEdgeFlag()
 glEnable()
 glEnableClientState()
 glEnd()
 glEndList()
 glEvalCoord()
 glEvalPoint()
 glFinish()
 glFlush()
 glFog()
 glFrontFace()
 glFrustum()
 glGenLists()
 glGetError()
 glGetString()
 glHint()
 glIndex()
 glIndexMask()
 glInitNames()
 glIsEnabled()
 glIsList()
 glIsTexture()
 glLight()
 glLightModel()
 glLineStipple()
 glLineWidth()
 glListBase()
 glLoadIdentity()
 glLoadMatrix()
 glLoadName()
 glLogicOp()
 glMaterial()
 glMatrixMode()
 glMultMatrix()
 glNewList()
 glNormal()
 glOrtho()
 glPassThrough()
 glPixelZoom()
 glPointSize()
 glPolygonMode()
 glPolygonOffset()
 glPopAttrib()
 glPopClientAttrib()
 glPopMatrix()
 glPopName()
 glPushAttrib()
 glPushClientAttrib()
 glPushMatrix()
 glPushName()
 glRasterPos()
 glReadBuffer()
 glRenderMode()
 glRotate()
 glScale()
 glScissor()
 glShadeModel()
 glStencilFunc()
 glStencilMask()
 glStencilOp()
 glTexCoord()
 glTexEnv()
 glTexGen()
 glTexImage2D()
 glTexParameter()
 glTexSubImage2D()
 glTranslate()
 glVertex()
 glViewport()
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GL.glViewport()next

Method GL.glVertex()

Method glVertex

void glVertex(float|int|array(float|int) x, float|int|void y, float|int|void z, float|int|void w)

Description

glVertex commands are used within glBegin /glEnd pairs to specify point, line, and polygon vertices. The current color, normal, and texture coordinates are associated with the vertex when glVertex is called.

When only x and y are specified, z defaults to 0 and w defaults to 1. When x, y, and z are specified, w defaults to 1.

Parameter x

Specify x, y, z, and w coordinates of a vertex. Not all parameters are present in all forms of the command.

Parameter v

Specifies a pointer to an array of two, three, or four elements. The elements of a two-element array are x and y; of a three-element array, x, y, and z; and of a four-element array, x, y, z, and w.