From fdb2240e4d06e9e552d6cd9ce4ec8d1ab2a6a448 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sebastia=CC=81n=20Barschkis?= Date: Thu, 8 Oct 2020 10:25:17 +0200 Subject: [PATCH] Fluid: Fix particle helper grid export Only export helper levelset and velocity (belonging to previous state) at the beginning of an (adaptive) frame. --- intern/mantaflow/intern/strings/liquid_script.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/intern/mantaflow/intern/strings/liquid_script.h b/intern/mantaflow/intern/strings/liquid_script.h index f26930b5d03..71f55a1d336 100644 --- a/intern/mantaflow/intern/strings/liquid_script.h +++ b/intern/mantaflow/intern/strings/liquid_script.h @@ -246,8 +246,10 @@ def liquid_step_$ID$():\n\ pushOutofObs(parts=pp_s$ID$, flags=flags_s$ID$, phiObs=phiObs_s$ID$)\n\ \n\ # save original states for later (used during mesh / secondary particle creation)\n\ - phiTmp_s$ID$.copyFrom(phi_s$ID$)\n\ - velTmp_s$ID$.copyFrom(vel_s$ID$)\n\ + # but only save the state at the beginning of an adaptive frame\n\ + if not s$ID$.timePerFrame:\n\ + phiTmp_s$ID$.copyFrom(phi_s$ID$)\n\ + velTmp_s$ID$.copyFrom(vel_s$ID$)\n\ \n\ mantaMsg('Advecting phi')\n\ advectSemiLagrange(flags=flags_s$ID$, vel=vel_s$ID$, grid=phi_s$ID$, order=1) # first order is usually enough\n\