66     float mag = sk_float_sqrt(fX*fX + fY*fY + fZ*fZ);  in normalize()
70         unit->fY = fY * scale;  in normalize()
73         unit->fX = unit->fY = unit->fZ = 0;  in normalize()
79     tmp2.setMul(fY, fY);  in normalize()
89         unit->fY = SkFixedMul(fY, scale);  in normalize()
92         unit->fX = unit->fY = unit->fZ = 0;  in normalize()
100             SkUnitScalarMul(a.fY, b.fY) +  in Dot()
109     SkScalar x = SkUnitScalarMul(a.fY, b.fZ) - SkUnitScalarMul(a.fZ, b.fY);  in Cross()
110     SkScalar y = SkUnitScalarMul(a.fZ, b.fX) - SkUnitScalarMul(a.fX, b.fY);  in Cross()
111     SkScalar z = SkUnitScalarMul(a.fX, b.fY) - SkUnitScalarMul(a.fY, b.fX);  in Cross()
138     SkScalar cx = SkScalarMul(fU.fY, fV.fZ) - SkScalarMul(fU.fZ, fV.fY);  in dotWith()
139     SkScalar cy = SkScalarMul(fU.fZ, fV.fX) - SkScalarMul(fU.fX, fV.fY);  in dotWith()
140     SkScalar cz = SkScalarMul(fU.fX, fV.fY) - SkScalarMul(fU.fY, fV.fX);  in dotWith()
275         zenith.fY = fZenith.fY - SkUnitScalarMul(dot, axis.fY);  in doUpdate()
286         SkScalar y = fObserver.fY;  in doUpdate()
290         orien->set(SkMatrix::kMSkewX,  SkUnitScalarMul(x, axis.fY) - SkUnitScalarMul(z, cross.fY));  in doUpdate()
293         orien->set(SkMatrix::kMScaleY, SkUnitScalarMul(y, axis.fY) - SkUnitScalarMul(z, zenith.fY));  in doUpdate()
296         orien->set(SkMatrix::kMPersp1, axis.fY);  in doUpdate()
313     diff.fY = quilt.fOrigin.fY - fLocation.fY;  in patchToMatrix()
380     return fCamera.fLocation.fY / SkFloatToScalar(72.0f);  in getCameraLocationY()