Smoke Bugfix: Turbulence was removed.

diff --git a/intern/smoke/intern/FLUID_3D.cpp b/intern/smoke/intern/FLUID_3D.cpp
index 99d3fc4b56644f3909594e3eb326e058ace92ee8..e006132ea8fe3dd4201a7c43d9aeaa69cc73d4e7 100644 (file)
--- a/intern/smoke/intern/FLUID_3D.cpp
+++ b/intern/smoke/intern/FLUID_3D.cpp
@@ -1298,7 +1298,7 @@ void FLUID_3D::addVorticity(int zBegin, int zEnd)
                                        N[2] = (_vorticity[out] - _vorticity[in]) * dz;
 
                                        float magnitude = sqrtf(N[0] * N[0] + N[1] * N[1] + N[2] * N[2]);
-                                       if (magnitude > 0.0f)
+                                       if (magnitude > FLT_EPSILON)
                                        {
                                                magnitude = 1.0f / magnitude;
                                                N[0] *= magnitude;
@@ -1306,8 +1306,8 @@ void FLUID_3D::addVorticity(int zBegin, int zEnd)
                                                N[2] *= magnitude;
 
                                                _xForce[index] += (N[1] * _zVorticity[vIndex] - N[2] * _yVorticity[vIndex]) * _dx * eps;
-                                               _yForce[index] += (N[0] * _zVorticity[vIndex] - N[2] * _xVorticity[vIndex]) * _dx * eps;
-                                               _zForce[index] -= (N[0] * _yVorticity[vIndex] - N[1] * _xVorticity[vIndex]) * _dx * eps;
+                                               _yForce[index] += (N[2] * _xVorticity[vIndex] - N[0] * _zVorticity[vIndex]) * _dx * eps;
+                                               _zForce[index] += (N[0] * _yVorticity[vIndex] - N[1] * _xVorticity[vIndex]) * _dx * eps;
                                        }
                                        }       // if
                                        vIndex++;