equationArray = gl.GetClipPlane(plane)
gl.GetClipPlane() returns in equation the four coefficients of the plane equation for plane.
It is always the case that #GL_CLIP_PLANEi = #GL_CLIP_PLANE0 + i.
If an error is generated, no change is made to the contents of equation.
Please consult an OpenGL reference manual for more information.
#GL_CLIP_PLANEi where i ranges from 0 to the value of #GL_MAX_CLIP_PLANES - 1#GL_INVALID_ENUM is generated if plane is not an accepted value.
#GL_INVALID_OPERATION is generated if gl.GetClipPlane() is executed between the execution of gl.Begin() and the corresponding execution of gl.End() .