blender/release/scripts/startup/bl_ui/properties_physics_common.py

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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
Unified effector functionality for particles, cloth and softbody * Unified scene wide gravity (currently in scene buttons) instead of each simulation having it's own gravity. * Weight parameters for all effectors and an effector group setting. * Every effector can use noise. * Most effectors have "shapes" point, plane, surface, every point. - "Point" is most like the old effectors and uses the effector location as the effector point. - "Plane" uses the closest point on effectors local xy-plane as the effector point. - "Surface" uses the closest point on an effector object's surface as the effector point. - "Every Point" uses every point in a mesh effector object as an effector point. - The falloff is calculated from this point, so for example with "surface" shape and "use only negative z axis" it's possible to apply force only "inside" the effector object. * Spherical effector is now renamed as "force" as it's no longer just spherical. * New effector parameter "flow", which makes the effector act as surrounding air velocity, so the resulting force is proportional to the velocity difference of the point and "air velocity". For example a wind field with flow=1.0 results in proper non-accelerating wind. * New effector fields "turbulence", which creates nice random flow paths, and "drag", which slows the points down. * Much improved vortex field. * Effectors can now effect particle rotation as well as location. * Use full, or only positive/negative z-axis to apply force (note. the z-axis is the surface normal in the case of effector shape "surface") * New "force field" submenu in add menu, which adds an empty with the chosen effector (curve object for corve guides). * Other dynamics should be quite easy to add to the effector system too if wanted. * "Unified" doesn't mean that force fields give the exact same results for particles, softbody & cloth, since their final effect depends on many external factors, like for example the surface area of the effected faces. Code changes * Subversion bump for correct handling of global gravity. * Separate ui py file for common dynamics stuff. * Particle settings updating is flushed with it's id through DAG_id_flush_update(..). Known issues * Curve guides don't yet have all ui buttons in place, but they should work none the less. * Hair dynamics don't yet respect force fields. Other changes * Particle emission defaults now to frames 1-200 with life of 50 frames to fill the whole default timeline. * Many particles drawing related crashes fixed. * Sometimes particles didn't update on first frame properly. * Hair with object/group visualization didn't work properly. * Memory leaks with PointCacheID lists (Genscher, remember to free pidlists after use :).
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import bpy
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class PhysicButtonsPanel():
bl_space_type = 'PROPERTIES'
bl_region_type = 'WINDOW'
bl_context = "physics"
@classmethod
def poll(cls, context):
rd = context.scene.render
return (context.object) and (not rd.use_game_engine)
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def physics_add(self, layout, md, name, type, typeicon, toggles):
sub = layout.row(align=True)
if md:
sub.context_pointer_set("modifier", md)
sub.operator("object.modifier_remove", text=name, icon='X')
if(toggles):
sub.prop(md, "show_render", text="")
sub.prop(md, "show_viewport", text="")
else:
sub.operator("object.modifier_add", text=name, icon=typeicon).type = type
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class PHYSICS_PT_add(PhysicButtonsPanel, bpy.types.Panel):
bl_label = ""
bl_options = {'HIDE_HEADER'}
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def draw(self, context):
ob = context.object
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layout = self.layout
layout.label("Enable physics for:")
split = layout.split()
col = split.column()
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if(context.object.field.type == 'NONE'):
col.operator("object.forcefield_toggle", text="Force Field", icon='FORCE_FORCE')
else:
col.operator("object.forcefield_toggle", text="Force Field", icon='X')
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if(ob.type == 'MESH'):
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physics_add(self, col, context.collision, "Collision", 'COLLISION', 'MOD_PHYSICS', False)
physics_add(self, col, context.cloth, "Cloth", 'CLOTH', 'MOD_CLOTH', True)
col = split.column()
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if(ob.type == 'MESH' or ob.type == 'LATTICE'or ob.type == 'CURVE'):
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physics_add(self, col, context.soft_body, "Soft Body", 'SOFT_BODY', 'MOD_SOFT', True)
if(ob.type == 'MESH'):
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physics_add(self, col, context.fluid, "Fluid", 'FLUID_SIMULATION', 'MOD_FLUIDSIM', True)
physics_add(self, col, context.smoke, "Smoke", 'SMOKE', 'MOD_SMOKE', True)
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#cachetype can be 'PSYS' 'HAIR' 'SMOKE' etc
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def point_cache_ui(self, context, cache, enabled, cachetype):
layout = self.layout
layout.context_pointer_set("point_cache", cache)
row = layout.row()
row.template_list(cache, "point_caches", cache.point_caches, "active_index", rows=2)
col = row.column(align=True)
col.operator("ptcache.add", icon='ZOOMIN', text="")
col.operator("ptcache.remove", icon='ZOOMOUT', text="")
row = layout.row()
if cachetype in {'PSYS', 'HAIR', 'SMOKE'}:
row.prop(cache, "use_external")
if cache.use_external:
split = layout.split(percentage=0.80)
split.prop(cache, "name", text="File Name")
split.prop(cache, "index", text="")
row = layout.row()
row.label(text="File Path:")
row.prop(cache, "use_library_path", "Use Lib Path")
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layout.prop(cache, "filepath", text="")
layout.label(text=cache.info)
else:
if cachetype == 'SMOKE':
if not bpy.data.is_saved:
layout.label(text="Cache is disabled until the file is saved")
layout.enabled = False
if cache.use_disk_cache:
layout.prop(cache, "name", text="File Name")
else:
layout.prop(cache, "name", text="Cache Name")
row = layout.row(align=True)
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if cachetype != 'PSYS':
row.enabled = enabled
row.prop(cache, "frame_start")
row.prop(cache, "frame_end")
if cachetype not in {'SMOKE', 'CLOTH'}:
row.prop(cache, "frame_step")
Pointcache code cleanup and disk cache compression options: * Massive reorganization of pointcache code, things are now cleaner than ever. * For all but smoke the cache is first written to memory when using disk cache and after that written to disk in one operation. This allows less disk operations and the possibility to compress the data before writing it to disk. * Previously only smoke cache could be compressed, now the same options exist for other physics types too (when using disk cache). For now the default compression option is still "no compression", but if there aren't any problems this can be set to "light compression" as it's actually faster than no compression in most cases since there's less data to write to the disk. Based on quick tests heavy compression can reduce the file size down to 1/3rd of the original size, but is really slow compared to other options, so it should be used only if file size is critical! * The pointcache code wasn't really 64bit compatible (for disk cache) until now, so this update should fix some crashes on 64bit builds too. Now all integer data that's saved to disk uses 32 bit unsigned integers, so simulations done on 64bit should load fine on 32bit machines and vice versa. (Important disk cache simulations made on 64bit builds should be converted to memory cache in a revision before this commit). * There are also the beginnings of extradata handling code in pointcache in anticipation of adding the dynamic springs for particle fluids (the springs need to be stored as extradata into point cache). * Particles were being read from the cache with a slightly wrong framerate. In most cases this probably wasn't noticeable, but none the less the code is now correct in every way. * Small other fixes here and there & some cosmetic changes to cache panel, but over all there should be no functional changes other than the new disk cache compression options. * This whole re-organization also seems to fix bug #25436 and hopefully shouldn't introduce any new ones!
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row.prop(cache, "use_quick_cache")
if cachetype != 'SMOKE':
layout.label(text=cache.info)
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if cachetype != 'SMOKE':
split = layout.split()
split.enabled = enabled and bpy.data.is_saved
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col = split.column()
Pointcache code cleanup and disk cache compression options: * Massive reorganization of pointcache code, things are now cleaner than ever. * For all but smoke the cache is first written to memory when using disk cache and after that written to disk in one operation. This allows less disk operations and the possibility to compress the data before writing it to disk. * Previously only smoke cache could be compressed, now the same options exist for other physics types too (when using disk cache). For now the default compression option is still "no compression", but if there aren't any problems this can be set to "light compression" as it's actually faster than no compression in most cases since there's less data to write to the disk. Based on quick tests heavy compression can reduce the file size down to 1/3rd of the original size, but is really slow compared to other options, so it should be used only if file size is critical! * The pointcache code wasn't really 64bit compatible (for disk cache) until now, so this update should fix some crashes on 64bit builds too. Now all integer data that's saved to disk uses 32 bit unsigned integers, so simulations done on 64bit should load fine on 32bit machines and vice versa. (Important disk cache simulations made on 64bit builds should be converted to memory cache in a revision before this commit). * There are also the beginnings of extradata handling code in pointcache in anticipation of adding the dynamic springs for particle fluids (the springs need to be stored as extradata into point cache). * Particles were being read from the cache with a slightly wrong framerate. In most cases this probably wasn't noticeable, but none the less the code is now correct in every way. * Small other fixes here and there & some cosmetic changes to cache panel, but over all there should be no functional changes other than the new disk cache compression options. * This whole re-organization also seems to fix bug #25436 and hopefully shouldn't introduce any new ones!
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col.prop(cache, "use_disk_cache")
col = split.column()
Pointcache code cleanup and disk cache compression options: * Massive reorganization of pointcache code, things are now cleaner than ever. * For all but smoke the cache is first written to memory when using disk cache and after that written to disk in one operation. This allows less disk operations and the possibility to compress the data before writing it to disk. * Previously only smoke cache could be compressed, now the same options exist for other physics types too (when using disk cache). For now the default compression option is still "no compression", but if there aren't any problems this can be set to "light compression" as it's actually faster than no compression in most cases since there's less data to write to the disk. Based on quick tests heavy compression can reduce the file size down to 1/3rd of the original size, but is really slow compared to other options, so it should be used only if file size is critical! * The pointcache code wasn't really 64bit compatible (for disk cache) until now, so this update should fix some crashes on 64bit builds too. Now all integer data that's saved to disk uses 32 bit unsigned integers, so simulations done on 64bit should load fine on 32bit machines and vice versa. (Important disk cache simulations made on 64bit builds should be converted to memory cache in a revision before this commit). * There are also the beginnings of extradata handling code in pointcache in anticipation of adding the dynamic springs for particle fluids (the springs need to be stored as extradata into point cache). * Particles were being read from the cache with a slightly wrong framerate. In most cases this probably wasn't noticeable, but none the less the code is now correct in every way. * Small other fixes here and there & some cosmetic changes to cache panel, but over all there should be no functional changes other than the new disk cache compression options. * This whole re-organization also seems to fix bug #25436 and hopefully shouldn't introduce any new ones!
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col.active = cache.use_disk_cache
col.prop(cache, "use_library_path", "Use Lib Path")
row = layout.row()
row.enabled = enabled and bpy.data.is_saved
Pointcache code cleanup and disk cache compression options: * Massive reorganization of pointcache code, things are now cleaner than ever. * For all but smoke the cache is first written to memory when using disk cache and after that written to disk in one operation. This allows less disk operations and the possibility to compress the data before writing it to disk. * Previously only smoke cache could be compressed, now the same options exist for other physics types too (when using disk cache). For now the default compression option is still "no compression", but if there aren't any problems this can be set to "light compression" as it's actually faster than no compression in most cases since there's less data to write to the disk. Based on quick tests heavy compression can reduce the file size down to 1/3rd of the original size, but is really slow compared to other options, so it should be used only if file size is critical! * The pointcache code wasn't really 64bit compatible (for disk cache) until now, so this update should fix some crashes on 64bit builds too. Now all integer data that's saved to disk uses 32 bit unsigned integers, so simulations done on 64bit should load fine on 32bit machines and vice versa. (Important disk cache simulations made on 64bit builds should be converted to memory cache in a revision before this commit). * There are also the beginnings of extradata handling code in pointcache in anticipation of adding the dynamic springs for particle fluids (the springs need to be stored as extradata into point cache). * Particles were being read from the cache with a slightly wrong framerate. In most cases this probably wasn't noticeable, but none the less the code is now correct in every way. * Small other fixes here and there & some cosmetic changes to cache panel, but over all there should be no functional changes other than the new disk cache compression options. * This whole re-organization also seems to fix bug #25436 and hopefully shouldn't introduce any new ones!
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row.active = cache.use_disk_cache
row.label(text="Compression:")
row.prop(cache, "compression", expand=True)
layout.separator()
split = layout.split()
col = split.column()
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if cache.is_baked == True:
col.operator("ptcache.free_bake", text="Free Bake")
else:
col.operator("ptcache.bake", text="Bake").bake = True
sub = col.row()
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sub.enabled = (cache.frames_skipped or cache.is_outdated) and enabled
sub.operator("ptcache.bake", text="Calculate To Frame").bake = False
sub = col.column()
sub.enabled = enabled
sub.operator("ptcache.bake_from_cache", text="Current Cache to Bake")
col = split.column()
col.operator("ptcache.bake_all", text="Bake All Dynamics").bake = True
col.operator("ptcache.free_bake_all", text="Free All Bakes")
col.operator("ptcache.bake_all", text="Update All To Frame").bake = False
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def effector_weights_ui(self, context, weights):
layout = self.layout
layout.prop(weights, "group")
split = layout.split()
col = split.column()
col.prop(weights, "gravity", slider=True)
col = split.column()
col.prop(weights, "all", slider=True)
layout.separator()
split = layout.split()
col = split.column()
col.prop(weights, "force", slider=True)
col.prop(weights, "vortex", slider=True)
col.prop(weights, "magnetic", slider=True)
col.prop(weights, "wind", slider=True)
col.prop(weights, "curve_guide", slider=True)
col.prop(weights, "texture", slider=True)
col = split.column()
col.prop(weights, "harmonic", slider=True)
col.prop(weights, "charge", slider=True)
col.prop(weights, "lennardjones", slider=True)
col.prop(weights, "turbulence", slider=True)
col.prop(weights, "drag", slider=True)
col.prop(weights, "boid", slider=True)
def basic_force_field_settings_ui(self, context, field):
layout = self.layout
split = layout.split()
if not field or field.type == 'NONE':
return
col = split.column()
if field.type == 'DRAG':
col.prop(field, "linear_drag", text="Linear")
else:
col.prop(field, "strength")
if field.type == 'TURBULENCE':
col.prop(field, "size")
col.prop(field, "flow")
elif field.type == 'HARMONIC':
col.prop(field, "harmonic_damping", text="Damping")
col.prop(field, "rest_length")
elif field.type == 'VORTEX' and field.shape != 'POINT':
col.prop(field, "inflow")
elif field.type == 'DRAG':
col.prop(field, "quadratic_drag", text="Quadratic")
else:
col.prop(field, "flow")
col = split.column()
sub = col.column(align=True)
sub.prop(field, "noise")
sub.prop(field, "seed")
if field.type == 'TURBULENCE':
col.prop(field, "use_global_coords", text="Global")
elif field.type == 'HARMONIC':
col.prop(field, "use_multiple_springs")
split = layout.split()
col = split.column()
col.label(text="Effect point:")
col.prop(field, "apply_to_location")
col.prop(field, "apply_to_rotation")
col = split.column()
col.label(text="Collision:")
col.prop(field, "use_absorption")
def basic_force_field_falloff_ui(self, context, field):
layout = self.layout
split = layout.split(percentage=0.35)
if not field or field.type == 'NONE':
return
col = split.column()
col.prop(field, "z_direction", text="")
col = split.column()
col.prop(field, "falloff_power", text="Power")
split = layout.split()
col = split.column()
row = col.row(align=True)
row.prop(field, "use_min_distance", text="")
sub = row.row()
sub.active = field.use_min_distance
sub.prop(field, "distance_min", text="Minimum")
col = split.column()
row = col.row(align=True)
row.prop(field, "use_max_distance", text="")
sub = row.row()
sub.active = field.use_max_distance
sub.prop(field, "distance_max", text="Maximum")
if __name__ == "__main__": # only for live edit.
bpy.utils.register_module(__name__)