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2022-05-29Cleanup: Simplify custom data file writing processHans Goudey
Previously the function had a fair amount of ugly boilerplate to avoid allocating the temporary layers array, and then free it if necessary. `blender::Vector` solves that problem more elegantly. Passing a span, using references in a few cases, and using a switch statement also make the functions simpler. This refactoring is in preparation for D14583 and D14685. Differential Revision: https://developer.blender.org/D15011
2022-05-17Cleanup: Use `switch` and `BLI_assert_unreachable()` more.Bastien Montagne
Replace some `if/else if` chains by proper `switch` statement. Replace some `BLI_assert(0)` calls by `BLI_assert_unreachable()` ones.
2022-05-11Mesh: Add Auto Smooth option to Shade Smooth operatorPablo Vazquez
Add a property to the **Shade Smooth** operator to quickly enable the Mesh `use_auto_smooth` option. The `Angle` property is exposed in the **Adjust Last Operation** panel to make it easy to tweak on multiple objects without having to go to the Properties editor. The operator is exposed in the `Object` menu and `Object Context Menu`. === Demo === {F13066173, size=full} Regarding the implementation, there are multiple ways to go about this (like making a whole new operator altogether), but I think a property is the cleanest/simplest. I imagine there are simpler ways to achieve this without duplicating the `use_auto_smooth` property in the operator itself (getting it from the Mesh props?), but I couldn't find other operators doing something similar. Reviewed By: #modeling, mont29 Differential Revision: https://developer.blender.org/D14894
2022-04-26Cleanup: Move anonymous attribute removal to geometry componentHans Goudey
Implementing removal of anonymous attributes with `GeometryComponent` instead of `Mesh` makes it more reusable for other types like curves.
2022-04-20Cleanup: Rename CD_MLOOPCOL to CD_PROP_BYTE_COLORHans Goudey
The "PROP" in the name reflects its generic status, and removing "LOOP" makes sense because it is no longer associated with just mesh face corners. In general the goal is to remove extra semantic meaning from the custom data types.
2022-04-20Mesh: Avoid unnecessary normal calculation and dirty tagsHans Goudey
This is mostly a cleanup to avoid hardcoding the eager calculation of normals it isn't necessary, by reducing calls to `BKE_mesh_calc_normals` and by removing calls to `BKE_mesh_normals_tag_dirty` when the mesh is newly created and already has dirty normals anyway. This reduces boilerplate code and makes the "dirty by default" state more clear. Any regressions from this commit should be easy to fix, though the lazy calculation is solid enough that none are expected.
2022-04-13Cover some DNA files with C++ utility macrosSergey Sharybin
Solves compilation warning with Clang, and moves manipulation with DNA structures to the designed way for C++. The tests and few other places are update to the new code by Jacques. Ref T96847 Maniphest Tasks: T96847 Differential Revision: https://developer.blender.org/D14625
2022-04-05Refactor: Unify vertex and sculpt colors into newJoseph Eagar
color attribute system. This commit removes sculpt colors from experimental status and unifies it with vertex colors. It introduces the concept of "color attributes", which are any attributes that represents colors. Color attributes can be represented with byte or floating-point numbers and can be stored in either vertices or face corners. Color attributes share a common namespace (so you can no longer have a floating-point sculpt color attribute and a byte vertex color attribute with the same name). Note: this commit does not include vertex paint mode, which is a separate patch, see: https://developer.blender.org/D14179 Differential Revision: https://developer.blender.org/D12587 Ref D12587
2022-03-25Cleanup: rename CustomDataExternal.filename => filepathCampbell Barton
Reserve "filename" when only the name component is used.
2022-03-22Fix T96308: Mesh to BMesh conversion doesn't calculate vertex normalsHans Goudey
Currently there is a "calc_face_normal" argument to mesh to bmesh conversion, but vertex normals had always implicitly inherited whatever dirty state the mesh input's vertex normals were in. Probably they were most often assumed to not be dirty, but this was never really correct in the general case. Ever since the refactor to move vertex normals out of mesh vertices, cfa53e0fbeed7178c7, the copying logic has been explicit: copy the normals when they are not dirty. But it turns out that more control is needed, and sometimes normals should be calculated for the resulting BMesh. This commit adds an option to the conversion to calculate vertex normals, true by default. In almost all places except the decimate and edge split modifiers, I just copied the value of the "calc_face_normals" argument. Differential Revision: https://developer.blender.org/D14406
2022-03-08Cleanup: Correct commentHans Goudey
Normals aren't stored in custom data anymore, nor are they stored in MVert for comparisons.
2022-02-22Cleanup: Remove unused mesh dirty flagsHans Goudey
These were only set in two places. One was related to "tessellated loop normal", and the other derived corner normals. The values were never checked though, after 59343ee1627f4c369. The handling of dirty face corner normals is clearly problematic, but in the future it should be handled like the normal layers on the other domains instead. Ref D14154, T95839
2022-02-22Merge branch 'blender-v3.1-release'Hans Goudey
2022-02-22Fix T95839: Data race when lazily creating mesh normal layersHans Goudey
Currently, when normals are calculated for a const mesh, a custom data layer might be added if it doesn't already exist. Adding a custom data layer to a mesh is not thread-safe, so this can be a problem in some situations. This commit moves derived mesh normals for polygons and vertices out of `CustomData` to `Mesh_Runtime`. Most of the hard work for this was already done by rBcfa53e0fbeed7178. Some changes to logic elsewhere are necessary/helpful: - No need to call both `BKE_mesh_runtime_clear_cache` and `BKE_mesh_normals_tag_dirty`, since the former also does the latter. - Cleanup/simplify mesh conversion and copying since normals are handled with other runtime data. Storing these normals like other runtime data clarifies their status as derived data, meaning custom data moves more towards storing original/editable data. This means normals won't automatically benefit from the planned copy-on-write refactor (T95845), so it will have to be added manually like for the other runtime data. Differential Revision: https://developer.blender.org/D14154
2022-02-19Merge branch 'blender-v3.1-release'Hans Goudey
2022-02-18Cleanup: Use functions for accessing mesh normal dirty stateHans Goudey
It's better not to expose the details of where the dirty flags are stored to every place that wants to know if the normals are dirty. Some of these places are relics from before vertex normals were computed lazily anyway, so this is more of an incrememtal cleanup. This will make part of the fix for T95839 simpler.
2022-02-18Mesh: Avoid creating incorrect original index layersHans Goudey
Currently, whenever any BMesh is converted to a Mesh (except for edit mode switching), original index (`CD_ORIGINDEX`) layers are added. This is incorrect, because many operations just convert some Mesh into a BMesh and then back, but they shouldn't make any assumption about where their input mesh came from. It might even come from a primitive in geometry nodes, where there are no original indices at all. Conceptually, mesh original indices should be filled by the modifier stack when first creating the evaluated mesh. So that's where they're moved in this patch. A separate function now fills the indices with their default (0,1,2,3...) values. The way the mesh wrapper system defers the BMesh to Mesh conversion makes this a bit less obvious though. The old behavior is incorrect, but it's also slower, because three arrays the size of the mesh's vertices, edges, and faces had to be allocated and filled during the BMesh to Mesh conversion, which just ends up putting more pressure on the cache. In the many cases where original indices aren't used, I measured an **8% speedup** for the conversion (from 76.5ms to 70.7ms). Generally there is an assumption that BMesh is "original" and Mesh is "evaluated". After this patch, that assumption isn't quite as strong, but it still exists for two reasons. First, original indices are added whenever converting a BMesh "wrapper" to a Mesh. Second, original indices are not added to the BMesh at the beginning of evaluation, which assumes that every BMesh in the viewport is original and doesn't need the mapping. Differential Revision: https://developer.blender.org/D14018
2022-02-15BLI: Change dependencies in vector math filesHans Goudey
This patch reverses the dependency between `BLI_math_vec_types.hh` and `BLI_math_vector.hh`. Now the higher level `blender::math` functions depend on the header that defines the types they work with, rather than the other way around. The initial goal was to allow defining an `enable_if` in the types header and using it in the math header. But I also think this operations to types dependency is more natural anyway. This required changing the includes some files used from the type header to the math implementation header. I took that change a bit further removing the C vector math header from the C++ header; I think that helps to make the transition between the two systems clearer. Differential Revision: https://developer.blender.org/D14112
2022-02-11File headers: SPDX License migrationCampbell Barton
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
2022-02-10Merge branch 'blender-v3.1-release'Hans Goudey
2022-02-10Fix T95613: remove anonymous attributes when converting objectJacques Lucke
This is the same behavior as when applying a geometry nodes modifier that adds anonymous attributes.
2022-02-04Attributes: Infrastructure for generic 8-bit integer data typeHans Goudey
This commit adds infrastructure for 8 bit signed integer attributes. This can be useful given the discussion in T94193, where we want to store spline type, Bezier handle type, and other small enums as attributes. This is only exposed in the interface in the attribute lists, so it shouldn't be an option in geometry nodes, at least for now. I expect that this type won't be used directly very often, it should mostly be cast to an enum type. However, with support for 8 bit integers, it also makes sense to add things like mixing implementations for consistency. Differential Revision: https://developer.blender.org/D13721
2022-01-25Fix depsgraphs sharing IDs via evaluated edit meshSergey Sharybin
The evaluated mesh is a result of evaluated modifiers, and referencing other evaluated IDs such as materials. It can not be stored in the EditMesh structure which is intended to be re-used by many areas. Such sharing was causing ownership errors causing bugs like T93855: Cycles crash with edit mode and simultaneous viewport and final render The proposed solution is to store the evaluated edit mesh and its cage in the object's runtime field. The motivation goes as following: - It allows to avoid ownership problems like the ones in the linked report. - Object level is chosen over mesh level is because the evaluated mesh is affected by modifiers, which are on the object level. This patch allows to have modifier stack of an object which shares mesh with an object which is in edit mode to be properly taken into account (before the change the modifier stack from the active object will be used for all objects which share the mesh). There is a change in the way how copy-on-write is handled in the edit mode to allow proper state update when changing active scene (or having two windows with different scenes). Previously, the copt-on-write would have been ignored by skipping tagging CoW component. Now it is ignored from within the CoW operation callback. This allows to update edit pointers for objects which are not from the current depsgraph and where the edit_mesh was never assigned in the case when the depsgraph was evaluated prior the active depsgraph. There is no user level changes changes expected with the CoW handling changes: should not affect on neither performance, nor memory consumption. Tested scenarios: - Various modifiers configurations of objects sharing mesh and be part of the same scene. - Steps from the reports: T93855, T82952, T77359 This also fixes T76609, T72733 and perhaps other reports. Differential Revision: https://developer.blender.org/D13824
2022-01-19BMesh: improve handling of custom-data flag (Mesh.cd_flag)Campbell Barton
Code that handled merging & initializing custom-data from other meshes sometimes missed checks for this flag, causing bevel weights to lost when the mesh was converted to a BMesh. The following changes are a more general fix for T94197. - Add BM_mesh_copy_init_customdata_from_mesh_array which initializes custom-data from multiple meshes at once. As well as initializing custom-data layers from Mesh.cd_flag. This isn't essential for boolean, however it avoids the overhead of resizing custom-data layers. - Loading mesh data into a BMesh now respects Mesh.cd_flag instead of only checking if the BMesh custom-data-layer exists. Without this, the order of meshes passed to BM_mesh_bm_from_me could give different (incorrect) results. - Copying mesh data now copies `cd_flag` too. This is a precaution as in my tests evaluating modifiers these values always matched. Nevertheless it's correct to copy this value as custom-data it's self is being copied.
2022-01-13Refactor: Move normals out of MVert, lazy calculationHans Goudey
As described in T91186, this commit moves mesh vertex normals into a contiguous array of float vectors in a custom data layer, how face normals are currently stored. The main interface is documented in `BKE_mesh.h`. Vertex and face normals are now calculated on-demand and cached, retrieved with an "ensure" function. Since the logical state of a mesh is now "has normals when necessary", they can be retrieved from a `const` mesh. The goal is to use on-demand calculation for all derived data, but leave room for eager calculation for performance purposes (modifier evaluation is threaded, but viewport data generation is not). **Benefits** This moves us closer to a SoA approach rather than the current AoS paradigm. Accessing a contiguous `float3` is much more efficient than retrieving data from a larger struct. The memory requirements for accessing only normals or vertex locations are smaller, and at the cost of more memory usage for just normals, they now don't have to be converted between float and short, which also simplifies code In the future, the remaining items can be removed from `MVert`, leaving only `float3`, which has similar benefits (see T93602). Removing the combination of derived and original data makes it conceptually simpler to only calculate normals when necessary. This is especially important now that we have more opportunities for temporary meshes in geometry nodes. **Performance** In addition to the theoretical future performance improvements by making `MVert == float3`, I've done some basic performance testing on this patch directly. The data is fairly rough, but it gives an idea about where things stand generally. - Mesh line primitive 4m Verts: 1.16x faster (36 -> 31 ms), showing that accessing just `MVert` is now more efficient. - Spring Splash Screen: 1.03-1.06 -> 1.06-1.11 FPS, a very slight change that at least shows there is no regression. - Sprite Fright Snail Smoosh: 3.30-3.40 -> 3.42-3.50 FPS, a small but observable speedup. - Set Position Node with Scaled Normal: 1.36x faster (53 -> 39 ms), shows that using normals in geometry nodes is faster. - Normal Calculation 1.6m Vert Cube: 1.19x faster (25 -> 21 ms), shows that calculating normals is slightly faster now. - File Size of 1.6m Vert Cube: 1.03x smaller (214.7 -> 208.4 MB), Normals are not saved in files, which can help with large meshes. As for memory usage, it may be slightly more in some cases, but I didn't observe any difference in the production files I tested. **Tests** Some modifiers and cycles test results need to be updated with this commit, for two reasons: - The subdivision surface modifier is not responsible for calculating normals anymore. In master, the modifier creates different normals than the result of the `Mesh` normal calculation, so this is a bug fix. - There are small differences in the results of some modifiers that use normals because they are not converted to and from `short` anymore. **Future improvements** - Remove `ModifierTypeInfo::dependsOnNormals`. Code in each modifier already retrieves normals if they are needed anyway. - Copy normals as part of a better CoW system for attributes. - Make more areas use lazy instead of eager normal calculation. - Remove `BKE_mesh_normals_tag_dirty` in more places since that is now the default state of a new mesh. - Possibly apply a similar change to derived face corner normals. Differential Revision: https://developer.blender.org/D12770
2022-01-12BLI: Refactor vector types & functions to use templatesClément Foucault
This patch implements the vector types (i.e:`float2`) by making heavy usage of templating. All vector functions are now outside of the vector classes (inside the `blender::math` namespace) and are not vector size dependent for the most part. In the ongoing effort to make shaders less GL centric, we are aiming to share more code between GLSL and C++ to avoid code duplication. ####Motivations: - We are aiming to share UBO and SSBO structures between GLSL and C++. This means we will use many of the existing vector types and others we currently don't have (uintX, intX). All these variations were asking for many more code duplication. - Deduplicate existing code which is duplicated for each vector size. - We also want to share small functions. Which means that vector functions should be static and not in the class namespace. - Reduce friction to use these types in new projects due to their incompleteness. - The current state of the `BLI_(float|double|mpq)(2|3|4).hh` is a bit of a let down. Most clases are incomplete, out of sync with each others with different codestyles, and some functions that should be static are not (i.e: `float3::reflect()`). ####Upsides: - Still support `.x, .y, .z, .w` for readability. - Compact, readable and easilly extendable. - All of the vector functions are available for all the vectors types and can be restricted to certain types. Also template specialization let us define exception for special class (like mpq). - With optimization ON, the compiler unroll the loops and performance is the same. ####Downsides: - Might impact debugability. Though I would arge that the bugs are rarelly caused by the vector class itself (since the operations are quite trivial) but by the type conversions. - Might impact compile time. I did not saw a significant impact since the usage is not really widespread. - Functions needs to be rewritten to support arbitrary vector length. For instance, one can't call `len_squared_v3v3` in `math::length_squared()` and call it a day. - Type cast does not work with the template version of the `math::` vector functions. Meaning you need to manually cast `float *` and `(float *)[3]` to `float3` for the function calls. i.e: `math::distance_squared(float3(nearest.co), positions[i]);` - Some parts might loose in readability: `float3::dot(v1.normalized(), v2.normalized())` becoming `math::dot(math::normalize(v1), math::normalize(v2))` But I propose, when appropriate, to use `using namespace blender::math;` on function local or file scope to increase readability. `dot(normalize(v1), normalize(v2))` ####Consideration: - Include back `.length()` method. It is quite handy and is more C++ oriented. - I considered the GLM library as a candidate for replacement. It felt like too much for what we need and would be difficult to extend / modify to our needs. - I used Macros to reduce code in operators declaration and potential copy paste bugs. This could reduce debugability and could be reverted. - This touches `delaunay_2d.cc` and the intersection code. I would like to know @howardt opinion on the matter. - The `noexcept` on the copy constructor of `mpq(2|3)` is being removed. But according to @JacquesLucke it is not a real problem for now. I would like to give a huge thanks to @JacquesLucke who helped during this and pushed me to reduce the duplication further. Reviewed By: brecht, sergey, JacquesLucke Differential Revision: https://developer.blender.org/D13791
2022-01-12Revert "BLI: Refactor vector types & functions to use templates"Clément Foucault
Includes unwanted changes This reverts commit 46e049d0ce2bce2f53ddc41a0dbbea2969d00a5d.
2022-01-12BLI: Refactor vector types & functions to use templatesClment Foucault
This patch implements the vector types (i.e:`float2`) by making heavy usage of templating. All vector functions are now outside of the vector classes (inside the `blender::math` namespace) and are not vector size dependent for the most part. In the ongoing effort to make shaders less GL centric, we are aiming to share more code between GLSL and C++ to avoid code duplication. ####Motivations: - We are aiming to share UBO and SSBO structures between GLSL and C++. This means we will use many of the existing vector types and others we currently don't have (uintX, intX). All these variations were asking for many more code duplication. - Deduplicate existing code which is duplicated for each vector size. - We also want to share small functions. Which means that vector functions should be static and not in the class namespace. - Reduce friction to use these types in new projects due to their incompleteness. - The current state of the `BLI_(float|double|mpq)(2|3|4).hh` is a bit of a let down. Most clases are incomplete, out of sync with each others with different codestyles, and some functions that should be static are not (i.e: `float3::reflect()`). ####Upsides: - Still support `.x, .y, .z, .w` for readability. - Compact, readable and easilly extendable. - All of the vector functions are available for all the vectors types and can be restricted to certain types. Also template specialization let us define exception for special class (like mpq). - With optimization ON, the compiler unroll the loops and performance is the same. ####Downsides: - Might impact debugability. Though I would arge that the bugs are rarelly caused by the vector class itself (since the operations are quite trivial) but by the type conversions. - Might impact compile time. I did not saw a significant impact since the usage is not really widespread. - Functions needs to be rewritten to support arbitrary vector length. For instance, one can't call `len_squared_v3v3` in `math::length_squared()` and call it a day. - Type cast does not work with the template version of the `math::` vector functions. Meaning you need to manually cast `float *` and `(float *)[3]` to `float3` for the function calls. i.e: `math::distance_squared(float3(nearest.co), positions[i]);` - Some parts might loose in readability: `float3::dot(v1.normalized(), v2.normalized())` becoming `math::dot(math::normalize(v1), math::normalize(v2))` But I propose, when appropriate, to use `using namespace blender::math;` on function local or file scope to increase readability. `dot(normalize(v1), normalize(v2))` ####Consideration: - Include back `.length()` method. It is quite handy and is more C++ oriented. - I considered the GLM library as a candidate for replacement. It felt like too much for what we need and would be difficult to extend / modify to our needs. - I used Macros to reduce code in operators declaration and potential copy paste bugs. This could reduce debugability and could be reverted. - This touches `delaunay_2d.cc` and the intersection code. I would like to know @howardt opinion on the matter. - The `noexcept` on the copy constructor of `mpq(2|3)` is being removed. But according to @JacquesLucke it is not a real problem for now. I would like to give a huge thanks to @JacquesLucke who helped during this and pushed me to reduce the duplication further. Reviewed By: brecht, sergey, JacquesLucke Differential Revision: https://developer.blender.org/D13791
2022-01-12Revert "BLI: Refactor vector types & functions to use templates"Clément Foucault
Reverted because the commit removes a lot of commits. This reverts commit a2c1c368af48644fa8995ecbe7138cc0d7900c30.
2022-01-12BLI: Refactor vector types & functions to use templatesClément Foucault
This patch implements the vector types (i.e:float2) by making heavy usage of templating. All vector functions are now outside of the vector classes (inside the blender::math namespace) and are not vector size dependent for the most part. In the ongoing effort to make shaders less GL centric, we are aiming to share more code between GLSL and C++ to avoid code duplication. Motivations: - We are aiming to share UBO and SSBO structures between GLSL and C++. This means we will use many of the existing vector types and others we currently don't have (uintX, intX). All these variations were asking for many more code duplication. - Deduplicate existing code which is duplicated for each vector size. - We also want to share small functions. Which means that vector functions should be static and not in the class namespace. - Reduce friction to use these types in new projects due to their incompleteness. - The current state of the BLI_(float|double|mpq)(2|3|4).hh is a bit of a let down. Most clases are incomplete, out of sync with each others with different codestyles, and some functions that should be static are not (i.e: float3::reflect()). Upsides: - Still support .x, .y, .z, .w for readability. - Compact, readable and easilly extendable. - All of the vector functions are available for all the vectors types and can be restricted to certain types. Also template specialization let us define exception for special class (like mpq). - With optimization ON, the compiler unroll the loops and performance is the same. Downsides: - Might impact debugability. Though I would arge that the bugs are rarelly caused by the vector class itself (since the operations are quite trivial) but by the type conversions. - Might impact compile time. I did not saw a significant impact since the usage is not really widespread. - Functions needs to be rewritten to support arbitrary vector length. For instance, one can't call len_squared_v3v3 in math::length_squared() and call it a day. - Type cast does not work with the template version of the math:: vector functions. Meaning you need to manually cast float * and (float *)[3] to float3 for the function calls. i.e: math::distance_squared(float3(nearest.co), positions[i]); - Some parts might loose in readability: float3::dot(v1.normalized(), v2.normalized()) becoming math::dot(math::normalize(v1), math::normalize(v2)) But I propose, when appropriate, to use using namespace blender::math; on function local or file scope to increase readability. dot(normalize(v1), normalize(v2)) Consideration: - Include back .length() method. It is quite handy and is more C++ oriented. - I considered the GLM library as a candidate for replacement. It felt like too much for what we need and would be difficult to extend / modify to our needs. - I used Macros to reduce code in operators declaration and potential copy paste bugs. This could reduce debugability and could be reverted. - This touches delaunay_2d.cc and the intersection code. I would like to know @Howard Trickey (howardt) opinion on the matter. - The noexcept on the copy constructor of mpq(2|3) is being removed. But according to @Jacques Lucke (JacquesLucke) it is not a real problem for now. I would like to give a huge thanks to @Jacques Lucke (JacquesLucke) who helped during this and pushed me to reduce the duplication further. Reviewed By: brecht, sergey, JacquesLucke Differential Revision: http://developer.blender.org/D13791
2021-12-29Fix: Issues with attribute comparison in geometry nodes testsHans Goudey
A few typos in 17770192fb0c5fddda lead to an incorrect count of custom data layers in the test meshes. We only want to consider layers that are not anonymous, and there was a copy and paste mistake.
2021-12-22Mesh: Parallelize bounding box calculation (WIP)Hans Goudey
This replaces the single-threaded calculation of mesh min and max positions with a `parallel_reduce` loop. Since the bounding box of a mesh is retrieved quite often (at the end of each evaluation, currently 2(?!) times when leaving edit mode, etc.), this makes for a quite noticeable speedup actually. On my Ryzen 3700x and a 4.2 million vertex mesh, I observed a 4.4x performance increase, from 14 ms to 4.4 ms. I added some methods to `float3` so they would be inlined, but they're also a nice addition, since they're used often anyway. Differential Revision: https://developer.blender.org/D13572
2021-12-10Cleanup/Docs: Add comments to Mesh header, rearrange fieldsHans Goudey
Most of the fields in Mesh had no comments, or outdated misleading comments. For example, "BMESH ONLY" referred to the BMesh project, not the data structure. Given how much these structs are used, it should save a lot of time to have proper comments. I also rearranged the fields in mesh to have a more logical order. Now the most important fields come first. In the process I was able to remove 19 bytes of unnecessary padding (31->12). I just had to change a `short` flag to `char`. Differential Revision: https://developer.blender.org/D13454
2021-12-07Cleanup: move public doc-strings into headers for 'blenkernel'Campbell Barton
- Added space below non doc-string comments to make it clear these aren't comments for the symbols directly below them. - Use doxy sections for some headers. - Minor improvements to doc-strings. Ref T92709
2021-12-01Fix T92561: unstable particle distribution with Alembic filesKévin Dietrich
When enabling or disabling a Mesh Sequence Cache modifier of an Object with a hair particle system, the hair would switch positions. This is caused because original coordinates in Blender are expected to be normalized, and toggling the modifier would cause the usage of different orco layers: one that is normalized, and the other which isn't. This bug exposes a few related issues: - if the Alembic file did not have orco data, `MOD_deform_mesh_eval_get`, used by the particle system modifier, would add an orco layer without normalization - `MOD_deform_mesh_eval_get` would also ignore the presence of an orco layer (e.g. one that could have been read from Alembic) - if the Alembic file did have orco data, the data would be read unnormalized To fix those various issues, original coordinates are normalized when read from Alembic and unnormalized when written to Alembic; and a new utility function `BKE_mesh_orco_ensure` is added to add a normalized orco layer if none exists on the mesh already, this function derives from the code used in the particle system. Reviewed By: brecht Maniphest Tasks: T92561 Differential Revision: https://developer.blender.org/D13306
2021-11-29Refactor BKE_bpath module.Bastien Montagne
The main goal of this refactor is to make BPath module use `IDTypeInfo`, and move each ID-specific part of the `foreach_path` looper into their own IDTypeInfo struct, using a new `foreach_path` callback. Additionally, following improvements/cleanups are included: * Attempt to get better, more consistent namings. ** In particular, move from `path_visitor` to more standard `foreach_path`. * Update and extend documentation. ** API doc was moved to header, according to recent discussions on this topic. * Remove `BKE_bpath_relocate_visitor` from API, this is specific callback that belongs in `lib_id.c` user code. NOTE: This commit is expected to be 100% non-behavioral-change. This implies that several potential further changes were only noted as comments (like using a more generic solution for `lib_id_library_local_paths`, addressing inconsistencies like path of packed libraries always being skipped, regardless of the `BKE_BPATH_FOREACH_PATH_SKIP_PACKED` `eBPathForeachFlag` flag value, etc.). NOTE: basic unittests were added to master already in rBdcc500e5a265093bc9cc. Reviewed By: brecht Differential Revision: https://developer.blender.org/D13381
2021-11-24Tests: exclude anonymous attributes from mesh comparisonJacques Lucke
The set of anonymous attributes on a geometry is not visible to the user.
2021-11-24Cleanup: `IDTypeInfo` new `asset_type_info` member.Bastien Montagne
Two issues addressed here: I) `asset_type_info` is sub-data, not a callback. Therefore, move it before the callbacks in the `IDTypeInfo` struct. II) More important, initialize this new attribute in *ALL* `IDTypeInfo` instances. No member of this struct should ever be left implicitely uninitilazed, ever. Aftermath of rBa84f1c02d251.
2021-11-24Cleanup: Add info about attributes init in Mesh IDTypeInfo after conversion ↵Bastien Montagne
to C++. rB6002914f141f totally lost those info, in C++ we use comments by convention.
2021-11-10Merge branch 'blender-v3.0-release'Jeroen Bakker
2021-11-08Cleanup: avoid error prone struct declarations in C++Campbell Barton
Reference struct members by name instead relying on their order. This also simplifies moving back to named members when all compilers we use support them.
2021-11-08Cleanup: remove references to non-existent 'mtexpoly'Campbell Barton
2021-11-08Cleanup: spelling in commentsCampbell Barton
2021-11-06Cleanup: Convert mesh.c to C++Erik
This commit renames mesh.c to mesh.cc and makes it compile in C++. Can be useful in the future to be able to use C++ functionality in existing and new functions. Differential Revision: https://developer.blender.org/D13134