Presets for hair dynamics.

This is necessary because the hair dynamics settings are not part of the
ParticleSettings datablock, but part of the convoluted cloth modifier
inside the particle system struct. In the future this will be recoded
properly, but in the meantime presets provide a simple an unobtrusive
way to have reusable dynamics settings for hair.

Conflicts:
	release/scripts/startup/bl_ui/properties_particle.py

3 files changed, 60 insertions, 0 deletions

diff --git a/release/scripts/presets/hair_dynamics/default.py b/release/scripts/presets/hair_dynamics/default.py
new file mode 100644
index 00000000000..830d28a76f0
--- /dev/null
+++ b/release/scripts/presets/hair_dynamics/default.py
@@ -0,0 +1,17 @@
+import bpy
+psys = bpy.context.particle_system
+cloth = bpy.context.particle_system.cloth
+settings = bpy.context.particle_system.cloth.settings
+collision = bpy.context.particle_system.cloth.collision_settings
+
+settings.quality = 5
+settings.mass = 0.30000001192092896
+settings.bending_stiffness = 0.5
+psys.settings.bending_random = 0.0
+settings.bending_damping = 0.5
+settings.air_damping = 1.0
+settings.internal_friction = 0.0
+settings.density_target = 0.0
+settings.density_strength = 0.0
+settings.voxel_cell_size = 0.10000000149011612
+settings.pin_stiffness = 0.0
diff --git a/release/scripts/startup/bl_operators/presets.py b/release/scripts/startup/bl_operators/presets.py
index 5e3485a27a4..bb6b3a5a7c0 100644
--- a/release/scripts/startup/bl_operators/presets.py
+++ b/release/scripts/startup/bl_operators/presets.py
@@ -365,6 +365,36 @@ class AddPresetFluid(AddPresetBase, Operator):
     preset_subdir = "fluid"
 
 
+class AddPresetHairDynamics(AddPresetBase, Operator):
+    """Add or remove a Hair Dynamics Preset"""
+    bl_idname = "particle.hair_dynamics_preset_add"
+    bl_label = "Add Hair Dynamics Preset"
+    preset_menu = "PARTICLE_MT_hair_dynamics_presets"
+
+    preset_defines = [
+        "psys = bpy.context.particle_system",
+        "cloth = bpy.context.particle_system.cloth",
+        "settings = bpy.context.particle_system.cloth.settings",
+        "collision = bpy.context.particle_system.cloth.collision_settings",
+    ]
+
+    preset_subdir = "hair_dynamics"
+
+    preset_values = [
+        "settings.quality",
+        "settings.mass",
+        "settings.bending_stiffness",
+        "psys.settings.bending_random",
+        "settings.bending_damping",
+        "settings.air_damping",
+        "settings.internal_friction",
+        "settings.density_target",
+        "settings.density_strength",
+        "settings.voxel_cell_size",
+        "settings.pin_stiffness",
+        ]
+
+
 class AddPresetSunSky(AddPresetBase, Operator):
     """Add or remove a Sky & Atmosphere Preset"""
     bl_idname = "lamp.sunsky_preset_add"
diff --git a/release/scripts/startup/bl_ui/properties_particle.py b/release/scripts/startup/bl_ui/properties_particle.py
index adff53d56f9..9ebcb2adf98 100644
--- a/release/scripts/startup/bl_ui/properties_particle.py
+++ b/release/scripts/startup/bl_ui/properties_particle.py
@@ -63,6 +63,14 @@ def particle_get_settings(context):
     return None
 
 
+class PARTICLE_MT_hair_dynamics_presets(Menu):
+    bl_label = "Hair Dynamics Presets"
+    preset_subdir = "hair_dynamics"
+    preset_operator = "script.execute_preset"
+    COMPAT_ENGINES = {'BLENDER_RENDER', 'BLENDER_GAME'}
+    draw = Menu.draw_preset
+
+
 class ParticleButtonsPanel():
     bl_space_type = 'PROPERTIES'
     bl_region_type = 'WINDOW'
@@ -308,6 +316,11 @@ class PARTICLE_PT_hair_dynamics(ParticleButtonsPanel, Panel):
 
         layout.enabled = psys.use_hair_dynamics and psys.point_cache.is_baked is False
 
+        row = layout.row(align=True)
+        row.menu("PARTICLE_MT_hair_dynamics_presets", text=bpy.types.PARTICLE_MT_hair_dynamics_presets.bl_label)
+        row.operator("particle.hair_dynamics_preset_add", text="", icon='ZOOMIN')
+        row.operator("particle.hair_dynamics_preset_add", text="", icon='ZOOMOUT').remove_active = True
+
         split = layout.column()
 
         col = split.column()