Lines Matching refs:zenith
73 SkV3 axis, zenith, cross;
75 // construct a orthonormal basis of cross (x), zenith (y), and axis (z)
78 zenith = fZenith - (axis * fZenith) * axis;
79 zenith = zenith.normalize();
81 cross = axis.cross(zenith);
89 // /|\ zenith
104 orien->set(SkMatrix::kMSkewY, y * axis.x - z * zenith.x);
105 orien->set(SkMatrix::kMScaleY, y * axis.y - z * zenith.y);
106 orien->set(SkMatrix::kMTransY, y * axis.z - z * zenith.z);