Lines Matching refs:elevation

26     elevation using "control" points to represent (elevation, density)
82     The density profile of the fog with respect to elevation is
86     value pair in <points> specifies the elevation (should not be
88     elevation. The fog density values are clamped to the range [0.0,
92     elevation of zero. The maximum number of points is implementation
96     elevation is the density value in the last point in the profile.
100     The elevation of any eye-space point A = (x, y, z, w) is defined
111     the inverse transpose of the model-view matrix. Then the elevation 
115 	elevation = a*x + b*y + c*z + d*w
118     the elevation of the eye-point is the same as 'd' (the fourth
124 	elevation --| Layered |-----| \	      _____
172     INVALID_VALUE is generated if any elevation is less than zero.