Fix: smoke noise tile was saved in Blender executable directory, which is often write protected on modern systems.

This caused high resolution smoke to always regenerate new tile when domain was reinitialized, slowing down especially adaptive domain simulations. Now noise tile is saved in Blender temp directory instead.

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/blenkernel/intern/smoke.c b/source/blender/blenkernel/intern/smoke.c
index 227b49dc13e..e5a73621649 100644
--- a/source/blender/blenkernel/intern/smoke.c
+++ b/source/blender/blenkernel/intern/smoke.c
@@ -154,7 +154,7 @@ struct SmokeModifierData;
 #else /* WITH_SMOKE */
 
 /* Stubs to use when smoke is disabled */
-struct WTURBULENCE *smoke_turbulence_init(int *UNUSED(res), int UNUSED(amplify), int UNUSED(noisetype), int UNUSED(use_fire), int UNUSED(use_colors)) { return NULL; }
+struct WTURBULENCE *smoke_turbulence_init(int *UNUSED(res), int UNUSED(amplify), int UNUSED(noisetype), const char *UNUSED(noisefile_path), int UNUSED(use_fire), int UNUSED(use_colors)) { return NULL; }
 //struct FLUID_3D *smoke_init(int *UNUSED(res), float *UNUSED(dx), float *UNUSED(dtdef), int UNUSED(use_heat), int UNUSED(use_fire), int UNUSED(use_colors)) { return NULL; }
 void smoke_free(struct FLUID_3D *UNUSED(fluid)) {}
 float *smoke_get_density(struct FLUID_3D *UNUSED(fluid)) { return NULL; }
@@ -204,7 +204,7 @@ void smoke_reallocate_highres_fluid(SmokeDomainSettings *sds, float dx, int res[
 		sds->wt = NULL;
 		return;
 	}
-	sds->wt = smoke_turbulence_init(res, sds->amplify + 1, sds->noise, use_fire, use_colors);
+	sds->wt = smoke_turbulence_init(res, sds->amplify + 1, sds->noise, BLI_temporary_dir(), use_fire, use_colors);
 	sds->res_wt[0] = res[0] * (sds->amplify + 1);
 	sds->res_wt[1] = res[1] * (sds->amplify + 1);
 	sds->res_wt[2] = res[2] * (sds->amplify + 1);