diff options
Diffstat (limited to 'src/utils/SkCamera.cpp')
| -rw-r--r-- | src/utils/SkCamera.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/utils/SkCamera.cpp b/src/utils/SkCamera.cpp index c8c462a5f7..23ab396c98 100644 --- a/src/utils/SkCamera.cpp +++ b/src/utils/SkCamera.cpp @@ -83,11 +83,11 @@ void SkPatch3D::transform(const SkMatrix3D& m, SkPatch3D* dst) const { } SkScalar SkPatch3D::dotWith(SkScalar dx, SkScalar dy, SkScalar dz) const { - SkScalar cx = SkScalarMul(fU.fY, fV.fZ) - SkScalarMul(fU.fZ, fV.fY); - SkScalar cy = SkScalarMul(fU.fZ, fV.fX) - SkScalarMul(fU.fX, fV.fY); - SkScalar cz = SkScalarMul(fU.fX, fV.fY) - SkScalarMul(fU.fY, fV.fX); + SkScalar cx = fU.fY * fV.fZ - fU.fZ * fV.fY; + SkScalar cy = fU.fZ * fV.fX - fU.fX * fV.fY; + SkScalar cz = fU.fX * fV.fY - fU.fY * fV.fX; - return SkScalarMul(cx, dx) + SkScalarMul(cy, dy) + SkScalarMul(cz, dz); + return cx * dx + cy * dy + cz * dz; } /////////////////////////////////////////////////////////////////////////////// |