This adds an option to the Multires modifier to sculpt directly on the
base mesh while previewing the displacement of a higher subdivisions
level. What this does it considering Multires as a regular modifier
without exposing the grid displacement to sculpt mode.
This allows to see the propagation happening in real time, which enables
to use complex tools like Cloth or Pose in much higher resolutions and
without surface noise and artifacts.
Reviewed By: sergey, Severin
Differential Revision: https://developer.blender.org/D8555
Functions `mesh_create_eval_final_view()` and
`mesh_create_eval_final_render()` were doing the exact same thing,
except for a hack introduced in d3eb9dddd6 (2012-10-08, Better fix for
T32846: dupligroup messes up particle instancing on rendering) that
appears to be no longer necessary. Besides that, these functions had
confusing names. Their functionality changed over time, and whether to
do for-render or for-viewport evaluation is now actually determined by
the depsgraph evaluation mode. This means that the `..._render` function
could evaluate a mesh with viewport settings, and vice versa.
The functions are now merged into `mesh_create_eval_final()`, and the
hack has been removed. The `OB_NO_PSYS_UPDATE` flag has been removed
entirely (instead of keeping it around as deprecated flag), because it
was always only temporarily set on objects during mesh evaluation and
thus not saved to the blend file.
No expected functional changes as far as users are concerned.
It was impossible for drivers to use shape key properties, modifiers
generate a new mesh. After mesh evaluation the shape keys are no longer
necessary, and because of this the `key` pointer was not copied. As
drivers work on evaluated data, however, they do need this `key`
pointer.
This commit makes the `key` pointer available in evaluated meshes, but
this is somewhat dangerous. There was an explicit reason why the key on
result was kept at null pointer: to have the evaluated mesh in a
consistent state. Assigning this pointer makes it potentially
inconsistent, as the evaluated mesh and the original shape key may have
different topologies.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D7785
This addresses warnings from Clang-Tidy's `readability-else-after-return`
rule in the `source/blender/blenkernel` module. Not all warnings are
addressed in this commit.
No functional changes.
This resolves a performance regression in 2.8x where every edit-mode
update performed an edit-mesh to mesh conversion.
Now the conversion will be lazily initialized if/when it's required.
New BKE_mesh_wrapper_* functions abstract over mesh data access.
Currently only edit-mesh and regular meshes are supported.
In the future sub-surface meshes may be supported too.
Return the correct sculpt level in BKE_multires_sculpt_level_get and
enable the property in the UI
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D7575
There is no user visible difference in standard builds, as there are no
volume modifiers yet. When using WITH_NEW_OBJECT_TYPES some deform only
modifiers are now available for hair and pointcloud objects.
Differential Revision: https://developer.blender.org/D7141
The code would have break the first (deform only) modifiers
once the index is reached, but it will not prevent second
loop (over remaining modifiers) from run.
This was applying deform modifier twice in some conditions:
having single deform modifier and calculating deformed mesh
up to the first modifier (index=0).
Make it obvious that this relates to being in sculpt mode.
ref T74489
Maniphest Tasks: T74489
Differential Revision: https://developer.blender.org/D7044
This is in preparation of new object types. This only changes mesh_eval, we
may do the same for mesh_deform_eval and other areas in the future if there is
a need for it.
This previously caused a bug in T74283, that should be fixed now.
Differential Revision: https://developer.blender.org/D6695
This reverts commit f2b95b9eae.
Fix T74283: modifier display lost when moving object in edit mode.
The cause is not immediately obvious so better to revert and look at this
carefully.
This is in preparation of new object types. This only changes mesh_eval, we
may do the same for mesh_deform_eval and other areas in the future if there is
a need for it.
Differential Revision: https://developer.blender.org/D6695
Remove this pointer since it's linking Mesh data back to the object,
where a single edit-mesh may have multiple object users,
causing incorrect assumptions in the code.
Resolves dangling pointer part of the T72667 crash,
although there are other issues which still need to be fixed.
In EDBM_op_finish and EDBM_update_generic,
full Main lookups have been added which should be replaced with mesh
argument or the update tagging moved elsewhere.
The root of the issue goes to the discontinuity between the way how
mesh_calc_modifiers() and BKE_sculpt_multires_active() works.
At some point detection of original data usage by a modifier got
broken: the mesh_final based check is unreliable because deform-only
modifiers will create mesh_final for the connectivity information.
This made it so modifier stack evaluation would skip multires
evaluation, but the sculpt code will assume the multires is properly
applied.
This change makes it an explicit check about whether there are any
non-deform-only modifiers applied.
Pair programming and review together with Bastien, thanks!
There was a discontinuity between how deform-only modifiers are applied
for the case when result deform mesh is requested and when it is not.
Namely, the input mesh will always be guaranteed to present in the
former case, but not in the latter.
This change makes it so input mesh to deform-only modifiers is always
at consistent state.
Pair programming and review together with Bastien, thanks!
Modifier stack evaluation would copy mesh settings other than mesh topology
automatically, outside of the individual modifier evaluation. This leads to hard
to understand code, and makes it unclear which settings are available in following
modifiers, and which only after the entire stack is evaluated.
Now every modifier is responsible to ensure the mesh it outputs preserves materials,
texture space and other settings, or alters them as needed.
Fixes T64739: incorrect texture space for various modifiers
Differential Revision: https://developer.blender.org/D5808
Modifier stack evaluation would copy mesh settings other than mesh topology
automatically, outside of the individual modifier evaluation. This leads to hard
to understand code, and makes it unclear which settings are available in following
modifiers, and which only after the entire stack is evaluated.
Now every modifier is responsible to ensure the mesh it outputs preserves materials,
texture space and other settings, or alters them as needed.
Fixes T64739: incorrect texture space for various modifiers
Differential Revision: https://developer.blender.org/D5808
Code in modifier stack ensuring requested CDLayers are provided was not
working very well for polynors in several cases:
* We cannot share the orig mesh if we have to generate pnors/lnors;
* Generating pnors without lnors was not possible.
This saves memory and evaluation time for simple static meshes with e.g. a
subdivision surface modifier. If no CD_ORCO layer exists then we assume the
actual vertex coordinates are equal to the original undeformed coordinates.
Was happening when modifier stack detected that mesh is not deformed
and is not modified and attempted to share result across multiple
objects.
This was introduced in 2f77119.
Now functions which are supposed to return mesh owned by caller will
do so again. Shouldn't be a huge impact on memory print since the
data layers are referenced.
The idea is to share a mesh data-block as a result across all objects
which are sharing same original mesh and have no effective modifiers.
This mesh is owned by an original copy-on-written version of object data.
Tricky part is to make sure it is only initialized once, and currently a
silly mutex lock is used. In practice it only locks if the mesh is not
already there.
As an extra bonus, even viewport memory is also lower after this change.
Reviewers: brecht, mont29
Reviewed By: brecht, mont29
Differential Revision: https://developer.blender.org/D4954
Evaluation must never go to original objects and query them:
this is a huge violation of the entire idea of separating
state across viewports and render engines.
Allowed this to only happen for active dependency graph, where
we at least know order of dependency graph update and user
input.
