forked from bartvdbraak/blender
Fix T73552: Mantaflow - liquid particles show up in organized unrealistic structure
Issue was being caused by a particle offset which was random but the same for every particle.
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extern/mantaflow/preprocessed/gitinfo.h
vendored
2
extern/mantaflow/preprocessed/gitinfo.h
vendored
@ -1,3 +1,3 @@
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#define MANTA_GIT_VERSION "commit f3d32c45934fd08c40096fb3510e9cc403730977"
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#define MANTA_GIT_VERSION "commit 21303fab2eda588ec22988bf9e5762d2001c131f"
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@ -525,7 +525,7 @@ struct knFlipSampleSecondaryParticlesMoreCylinders : public KernelBase {
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if (!(flags(i, j, k) & itype))
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return;
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RandomStream mRand(9832);
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static RandomStream mRand(9832);
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Real radius =
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0.25; // diameter=0.5 => sampling with two cylinders in each dimension since cell size=1
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for (Real x = i - radius; x <= i + radius; x += 2 * radius) {
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@ -791,11 +791,9 @@ struct knFlipSampleSecondaryParticles : public KernelBase {
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const int n = KE * (k_ta * TA + k_wc * WC) * dt; // number of secondary particles
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if (n == 0)
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return;
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RandomStream mRand(9832);
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static RandomStream mRand(9832);
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Vec3 xi = Vec3(i + mRand.getReal(),
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j + mRand.getReal(),
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k + mRand.getReal()); // randomized offset uniform in cell
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Vec3 xi = Vec3(i, j, k) + mRand.getVec3(); // randomized offset uniform in cell
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Vec3 vi = v.getInterpolated(xi);
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Vec3 dir = dt * vi; // direction of movement of current particle
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Vec3 e1 = getNormalized(Vec3(dir.z, 0, -dir.x)); // perpendicular to dir
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