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Similar to the Principled BSDF, this should make it easier to set up volume
materials. Smoke and fire can be rendererd with just a single principled
volume node, the appropriate attributes will be used when available. The node
also works for simpler homogeneous volumes like water or mist.
Differential Revision: https://developer.blender.org/D3033
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When you were using autosmooth to generate some custom normals, and
created empty custom loop normal data, you would go back to an 'all
smooth' shading, cancelling some sharp edges generated by the mesh's
smooth threshold.
Now we will first tag such edges as sharp, such that shading remains the
same. This is not crucial in current master, but it is for clnors
editing gsoc branch!
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Makes it easier to add or remove fields needed to update relations.
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This shouldn't affect anything currently, as this function doesn't appear
to get used anywhere.
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Now it's possible to have debug messages for following things:
- Graph construction
- Graph evaluation
- Graph tagging
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Was accessing past the array boundaries.
Should be safe for 2.79a.
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This would use uninitialized filename variable,
looked into supporting this however generating proxies currently only
works for movies.
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Using same name for two different things is not the best idea ever...
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This is a regression in rB4f1c0a1 which only allowed cutting haior at the
second segment only, while there is nothing wrong with cutting hair at the
first segmewnt.
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Don't use dm->get*Array for DM you don't own. This call can allocate temporary
CD layer, which is not thread safe at all.
Also removed hard-coded logic around CDDM check. new functions will do same
logic, but are mode DM-type-=independent.
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We shouldn't mix image pool acuisition with and without user provided,
the fact that internally image.c uses last frame from Image datablock
confuses the logic.
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Optionally don't remap indices for objects.
Checking all objects parent's would reference a freed pointer
while freeing all objects.
In the case of dynamic topology there is no use in keeping track
of hook/vertex-parent indices.
Also disable this when creating meshes for undo storage
since adding an undo step shouldn't be modifying other objects.
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Some of these API's can have 3D versions, explicitly name them 2D.
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In general 2.8 files may not be readable in master, but might as well fix
this case so all the lib/tests can be opened still.
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- Use BLI_threadpool_ prefix for (deprecated)
thread/listbase API.
- Use BLI_thread as prefix for other functions.
See P614 to apply instead of manually resolving conflicts.
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- When returning the number of items in a collection use BLI_*_len()
- Keep _size() for size in bytes.
- Keep _count() for data structures that don't store length
(hint this isn't a simple getter).
See P611 to apply instead of manually resolving conflicts.
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This completes twist feature, which is now possible to also control by
texture. Since textures can not easily contain negative values as well,
same trick with 0.5 neutral as vertex groups is used.
All in all, this twist features allows to do following things.
Original hair:
{F2287535}
Hair with scientifically calculated twist value of 0.5:
{F2287540}
And we can also twist braids in opposite directions dependent on left/right
side:
{F2287548}
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vgroups and textures
cpa->num points to a face index on BASE mesh, but get_child_modifier_parameters()
expects index on a FINAL dm. So wrong index was used here.
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The idea is to give a control over direction of twist, and maybe amount of
twist as well. More concrete example: make braids on left and right side of
character head to be twisting opposite directions.
Now, tricky part: we need some negative values to flip direction, but weights
can not be negative. So we use same trick as displacement map and tangent normal
maps, where 0.5 is neutral, values below 0.5 are considered negative and values
above 0.5 are considered positive.
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It allows to have children hair to be twisted around parent curve, which is
quite an essential feature when creating hair braids.
There are currently two controls:
- Number of turns around parent children.
- Influence curve, which allows to modify "twistness" along the strand.
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Use single structure. It seems we will need to pass more information soon,
so better to do it via the structure.
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This makes it really hard to spot errors when function signature changes.
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Avoids redundant calls to the curve evaluation.
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Was a mistake from recent texspace changes.
Reported by Pablo here in the studio!
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Previously quads always split along first-third vertices.
This is still the default, to avoid flickering with animated deformation
however concave quads that would create two opposing triangles now use
second-fourth split.
Reported as T53999 although this issue has been known limitation
for a long time.
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Also remove unused struct member.
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This adds midlevel and object/world space for displacement, and a
vector displacement node with tangent/object/world space, midlevel
and scale.
Note that tangent space vector displacement still is not exactly
compatible with maps created by other software, this will require
changes to the tangent computation.
Differential Revision: https://developer.blender.org/D1734
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Epic fail from recent 'security' fixes (rBe04d7c49dca9). ;)
To be backported to 2.79a!
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Consistent with other BLI API's
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Failure in own code from last December, thanks @sergey for finding it.
To be backported to 2.79a.
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renaming/fixing code
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datablocks in Editmode.
Only do special handling of ob->data pointer in case we are remapping to
a valid (non-NULL) other obdata. Otherwise, handle it as any other
'remapping to NULL' case.
Hopefully not breaking anything else...
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Move timer and tip out of button code,
now the only requests a tooltip,
passing a creation callback to run.
Needed for manipulators in 2.8,
also helps de-duplicate logic - since we never want
multiple tool-tips showing at once.
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Compared to usual cddm one, ccgdm one was not applying the
ob->derivedDeform deformation to the pbvh generated from the
original mesh geometry, when possible.
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