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	- outdated (simulation is not done completely with current settings)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	- Becomes outdated: After any change effecting the simulation other than frame steps.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	- Becomes outdated: Never.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* The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: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	- Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact.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.

2 files changed, 65 insertions, 10 deletions

diff --git a/release/ui/buttons_particle.py b/release/ui/buttons_particle.py
index f82324db9d8..378689e8202 100644
--- a/release/ui/buttons_particle.py
+++ b/release/ui/buttons_particle.py
@@ -130,11 +130,7 @@ class PARTICLE_PT_cache(ParticleButtonsPanel):
 		cache = psys.point_cache
 		
 		row = layout.row()
-		row.itemR(cache, "name", text="")
-		if cache.outdated:
-			row.itemL(text="Cache is outdated.")
-		else:
-			row.itemL(text="")
+		row.itemR(cache, "name")
 		
 		row = layout.row()
 		
@@ -142,18 +138,29 @@ class PARTICLE_PT_cache(ParticleButtonsPanel):
 			row.itemO("PTCACHE_OT_free_bake_particle_system", text="Free Bake")
 		else:
 			row.item_booleanO("PTCACHE_OT_cache_particle_system", "bake", True, text="Bake")
-			
+		
+		subrow = row.row()
+		subrow.enabled = (cache.frames_skipped or cache.outdated) and particle_panel_enabled(psys)
+		subrow.itemO("PTCACHE_OT_cache_particle_system", text="Calculate to Current Frame")
+		
 		row = layout.row()
 		row.enabled = particle_panel_enabled(psys)
 		row.itemO("PTCACHE_OT_bake_from_particles_cache", text="Current Cache to Bake")
-		if cache.autocache == 0:
-			row.itemO("PTCACHE_OT_cache_particle_system", text="Cache to Current Frame")
+		row.itemR(cache, "step");
 	
 		row = layout.row()
 		row.enabled = particle_panel_enabled(psys)
-		#row.itemR(cache, "autocache")
+		row.itemR(cache, "quick_cache")
 		row.itemR(cache, "disk_cache")
-		row.itemL(text=cache.info)
+		
+		layout.itemL(text=cache.info)
+		
+		layout.itemS()
+		
+		row = layout.row()
+		row.item_booleanO("PTCACHE_OT_bake_all", "bake", True, text="Bake All Dynamics")
+		row.itemO("PTCACHE_OT_free_bake_all", text="Free All Bakes")
+		layout.itemO("PTCACHE_OT_bake_all", text="Update All Dynamics to current frame")
 		
 		# for particles these are figured out automatically
 		#row.itemR(cache, "start_frame")
diff --git a/release/ui/buttons_physic_cloth.py b/release/ui/buttons_physic_cloth.py
index bd65392ad63..a06c644322a 100644
--- a/release/ui/buttons_physic_cloth.py
+++ b/release/ui/buttons_physic_cloth.py
@@ -43,7 +43,54 @@ class Physic_PT_cloth(PhysicButtonsPanel):
 			col.itemR(cloth, "goal_spring", text="Stiffness")
 			col.itemR(cloth, "goal_friction", text="Friction")
 		"""
+
+class PHYSICS_PT_cloth_cache(PhysicButtonsPanel):
+	__idname__= "PHYSICS_PT_cloth_cache"
+	__label__ = "Cache"
+	__default_closed__ = True
+
+	def draw(self, context):
+		layout = self.layout
+
+		cache = context.cloth.point_cache
+		
+		row = layout.row()
+		row.itemR(cache, "name")
+		
+		row = layout.row()
+		row.itemR(cache, "start_frame")
+		row.itemR(cache, "end_frame")
+		
+		row = layout.row()
+		
+		if cache.baked == True:
+			row.itemO("PTCACHE_OT_free_bake_cloth", text="Free Bake")
+		else:
+			row.item_booleanO("PTCACHE_OT_cache_cloth", "bake", True, text="Bake")
+		
+		subrow = row.row()
+		subrow.enabled = cache.frames_skipped or cache.outdated
+		subrow.itemO("PTCACHE_OT_cache_cloth", text="Calculate to Current Frame")
+			
+		row = layout.row()
+		#row.enabled = particle_panel_enabled(psys)
+		row.itemO("PTCACHE_OT_bake_from_cloth_cache", text="Current Cache to Bake")
+		row.itemR(cache, "step");
 	
+		row = layout.row()
+		#row.enabled = particle_panel_enabled(psys)
+		row.itemR(cache, "quick_cache")
+		row.itemR(cache, "disk_cache")
+		
+		layout.itemL(text=cache.info)
+		
+		layout.itemS()
+		
+		row = layout.row()
+		row.itemO("PTCACHE_OT_bake_all", "bake", True, text="Bake All Dynamics")
+		row.itemO("PTCACHE_OT_free_bake_all", text="Free All Bakes")
+		layout.itemO("PTCACHE_OT_bake_all", text="Update All Dynamics to current frame")
+		
 class Physic_PT_cloth_collision(PhysicButtonsPanel):
 	__idname__ = "Physic_PT_clothcollision"
 	__label__ = "Cloth Collision"
@@ -102,5 +149,6 @@ class Physic_PT_cloth_stiffness(PhysicButtonsPanel):
 		sub.itemR(cloth, "bending_stiffness_max", text="Max")
 		
 bpy.types.register(Physic_PT_cloth)
+bpy.types.register(PHYSICS_PT_cloth_cache)
 bpy.types.register(Physic_PT_cloth_collision)
 bpy.types.register(Physic_PT_cloth_stiffness)