Smoke: The well known Miika Hämäläinen (aka MiikaH) patch (http://blenderartists.org/forum/showthread.php?t=158317&page=42)

* Better (and windows enabled) OpenMP handling (> 2x-5x speed)
* More Volumetric Texture mapping options (heat, etc) <-- Matt if that's not to your liking, just revert that part, it's separate anyway
* Initial velocity taken from particle settings (no more slow starting)
* Option to select compression method (there seem to be a bug in my high compression usage, at least it's been reported to result in exploding smoke - better use low compression for the time being)

It's been tested since a while but as usual please report any (new!) bugs. ;-)

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_smoke_types.h b/source/blender/makesdna/DNA_smoke_types.h
index 6cf308aa0ad..08cd1ba2994 100644
--- a/source/blender/makesdna/DNA_smoke_types.h
+++ b/source/blender/makesdna/DNA_smoke_types.h
@@ -33,6 +33,8 @@
 #define MOD_SMOKE_HIGHRES (1<<1) /* enable high resolution */
 #define MOD_SMOKE_DISSOLVE (1<<2) /* let smoke dissolve */
 #define MOD_SMOKE_DISSOLVE_LOG (1<<3) /* using 1/x for dissolve */
+#define MOD_SMOKE_INITVELOCITY (1<<4) /* passes particles speed to
+										 the smoke*/
 
 /* noise */
 #define MOD_SMOKE_NOISEWAVE (1<<0)
@@ -41,6 +43,10 @@
 /* viewsettings */
 #define MOD_SMOKE_VIEW_SHOWBIG (1<<0)
 
+/* cache compression */
+#define SM_CACHE_LIGHT		0
+#define SM_CACHE_HEAVY		1
+
 typedef struct SmokeDomainSettings {
 	struct SmokeModifierData *smd; /* for fast RNA access */
 	struct FLUID_3D *fluid;
@@ -73,6 +79,8 @@ typedef struct SmokeDomainSettings {
 	int res_wt[3];
 	float dx_wt;
 	int v3dnum;
+	int cache_comp;
+	int cache_high_comp;
 	struct PointCache *point_cache[2];	/* definition is in DNA_object_force.h */
 	struct ListBase ptcaches[2];
 	struct EffectorWeights *effector_weights;