diff options
author | Janne Karhu <jhkarh@gmail.com> | 2009-06-27 19:28:58 +0400 |
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committer | Janne Karhu <jhkarh@gmail.com> | 2009-06-27 19:28:58 +0400 |
commit | 912c2f440b447aa8cae9f3e3a86acf51cd495e3d (patch) | |
tree | 57b5274640b0c0854f83ff0e3e4ba43902a69ddc /source/blender/blenloader | |
parent | 9becf3c310b1051d1e9dc7170cb02d73bc4d6e08 (diff) |
Pointcache refresh part 2
* Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as:
- exact (not marked)
- outdated (simulation is not done completely with current settings)
- non-exact (frames were skipped during simulation)
* The parameter "cache step" effects the number of frames between saved cache frames.
- This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required.
- Speeds up the "quick caching" very much.
- Frames between cached frames are interpolated from the cached frames.
- Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted.
* The caching can work in normal or "quick" mode:
[Normal cache]
- Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames.
- Becomes non-exact: After larger than 1 frame steps.
- Becomes outdated: After any change effecting the simulation other than frame steps.
- Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning.
[Quick cache]
- Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used.
- Becomes non-exact: Always from frame 1 (unless cache step = 1).
- Becomes outdated: Never.
- Pros/cons: Not very accurate, but super fast!
- Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides.
* The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations:
- step forwards (to unknown) -> simulate from last exact frame, store result
- step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame
* "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1.
- Baking does the same, but runs the simulation all the way to the end of simulation.
- Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact.
* Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame".
* Cloth simulation supports the new cache too.
Diffstat (limited to 'source/blender/blenloader')
-rw-r--r-- | source/blender/blenloader/intern/readfile.c | 13 | ||||
-rw-r--r-- | source/blender/blenloader/intern/writefile.c | 5 |
2 files changed, 11 insertions, 7 deletions
diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c index 7921740cbe8..441e8aff2d6 100644 --- a/source/blender/blenloader/intern/readfile.c +++ b/source/blender/blenloader/intern/readfile.c @@ -9013,6 +9013,8 @@ static void do_versions(FileData *fd, Library *lib, Main *main) Tex *tx; ParticleSettings *part; Object *ob; + PTCacheID *pid; + ListBase pidlist; for(screen= main->screen.first; screen; screen= screen->id.next) { do_versions_windowmanager_2_50(screen); @@ -9073,14 +9075,13 @@ static void do_versions(FileData *fd, Library *lib, Main *main) } /* set old pointcaches to have disk cache flag */ for(ob = main->object.first; ob; ob= ob->id.next) { - ParticleSystem *psys = ob->particlesystem.first; - for(; psys; psys=psys->next) { - if(psys->pointcache) - psys->pointcache->flag |= PTCACHE_DISK_CACHE; - } + BKE_ptcache_ids_from_object(&pidlist, ob); + + for(pid=pidlist.first; pid; pid=pid->next) + pid->cache->flag |= PTCACHE_DISK_CACHE; - /* TODO: softbody & cloth caches */ + BLI_freelistN(&pidlist); } } diff --git a/source/blender/blenloader/intern/writefile.c b/source/blender/blenloader/intern/writefile.c index ef1e7d70a1e..c433232d084 100644 --- a/source/blender/blenloader/intern/writefile.c +++ b/source/blender/blenloader/intern/writefile.c @@ -552,6 +552,7 @@ static void write_userdef(WriteData *wd) /* TODO: replace *cache with *cachelist once it's coded */ #define PTCACHE_WRITE_PSYS 0 +#define PTCACHE_WRITE_CLOTH 1 static void write_pointcaches(WriteData *wd, PointCache *cache, int type) { writestruct(wd, DATA, "PointCache", 1, cache); @@ -563,6 +564,8 @@ static void write_pointcaches(WriteData *wd, PointCache *cache, int type) writestruct(wd, DATA, "PTCacheMem", 1, pm); if(type==PTCACHE_WRITE_PSYS) writestruct(wd, DATA, "ParticleKey", pm->totpoint, pm->data); + else if(type==PTCACHE_WRITE_CLOTH) + writedata(wd, DATA, 9 * sizeof(float) * pm->totpoint, pm->data); } } } @@ -1025,7 +1028,7 @@ static void write_modifiers(WriteData *wd, ListBase *modbase, int write_undo) writestruct(wd, DATA, "ClothSimSettings", 1, clmd->sim_parms); writestruct(wd, DATA, "ClothCollSettings", 1, clmd->coll_parms); - writestruct(wd, DATA, "PointCache", 1, clmd->point_cache); + write_pointcaches(wd, clmd->point_cache, PTCACHE_WRITE_CLOTH); } else if(md->type==eModifierType_Fluidsim) { FluidsimModifierData *fluidmd = (FluidsimModifierData*) md; |