forked from bartvdbraak/blender
Fluid: Optimization for smoke simulation (multigrid)
The solver will now automatically detect static scenes (no moving obstacles) and use a slightly faster pressure solve in those cases.
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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 1d52e96ad602f1974dfee75bef293bc397e4b41b"
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#define MANTA_GIT_VERSION "commit 1d55979473c25318f39c4a6bf48a5ab77b3bf39b"
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@ -1171,6 +1171,11 @@ void solvePressureSystem(Grid<Real> &rhs,
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maxIter = 100;
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pmg = gMapMG[parent];
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// Release MG from previous step if present (e.g. if previous solve was with MGStatic)
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if (pmg && preconditioner == PcMGDynamic) {
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releaseMG(parent);
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pmg = nullptr;
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}
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if (!pmg) {
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pmg = new GridMg(pressure.getSize());
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gMapMG[parent] = pmg;
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@ -30,7 +30,7 @@
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const std::string smoke_variables =
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"\n\
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mantaMsg('Smoke variables low')\n\
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preconditioner_s$ID$ = PcMGDynamic\n\
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preconditioner_s$ID$ = PcMGStatic\n\
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using_colors_s$ID$ = $USING_COLORS$\n\
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using_heat_s$ID$ = $USING_HEAT$\n\
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using_fire_s$ID$ = $USING_FIRE$\n\
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@ -391,6 +391,8 @@ def smoke_step_$ID$():\n\
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mantaMsg('Walls')\n\
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setWallBcs(flags=flags_s$ID$, vel=vel_s$ID$, obvel=obvel_s$ID$ if using_obstacle_s$ID$ else None)\n\
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\n\
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preconditioner_s$ID$ = PcMGDynamic if using_obstacle_s$ID$ and obvel_s$ID$.getMax() > 0 else PcMGStatic\n\
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mantaMsg('Using preconditioner: ' + str(preconditioner_s$ID$))\n\
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if using_guiding_s$ID$:\n\
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mantaMsg('Guiding and pressure')\n\
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PD_fluid_guiding(vel=vel_s$ID$, velT=velT_s$ID$, flags=flags_s$ID$, weight=weightGuide_s$ID$, blurRadius=beta_sg$ID$, pressure=pressure_s$ID$, tau=tau_sg$ID$, sigma=sigma_sg$ID$, theta=theta_sg$ID$, preconditioner=preconditioner_s$ID$, zeroPressureFixing=not doOpen_s$ID$)\n\
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