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2022-02-07Merge branch 'blender-v3.1-release'Bastien Montagne
2022-02-07Fix UI messages (typos etc.).Bastien Montagne
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
2022-02-04Fix wrong use of region size without pixel-size appliedJulian Eisel
Didn't cause visible issues, because the layout uses spacers to right-align text, which happens to use the region size with pixel-size applied for calculations.
2022-02-01Fix T95314: constant values not shown in spreadsheetJacques Lucke
2022-01-26Performance: Remap multiple items in UIJeroen Bakker
During sprite fright loading of complex scenes would spend a long time in remapping ID's The remapping process is done on a per ID instance that resulted in a very time consuming process that goes over every possible ID reference to find out if it needs to be updated. If there are N of references to ID blocks and there are M ID blocks that needed to be remapped it would take N*M checks. These checks are scattered around the place and memory. Each reference would only be updated at most once, but most of the time no update is needed at all. Idea: By grouping the changes together will reduce the number of checks resulting in improved performance. This would only require N checks. Additional benefits is improved data locality as data is only loaded once in the L2 cache. It has be implemented for the resyncing process and UI editors. On an Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz 16Gig the resyncing process went from 170 seconds to 145 seconds (during hotspot recording). After this patch has been applied we could add similar approach to references (references between data blocks) and functionality (tagged deletion). In my understanding this could reduce the resyncing process to less than a second. Opening the village production file between 10 and 20 seconds. Flame graphs showing that UI remapping isn't visible anymore (`WM_main_remap_editor_id_reference`) * Master {F12769210 size=full} * This patch {F12769211 size=full} Reviewed By: mont29 Maniphest Tasks: T94185 Differential Revision: https://developer.blender.org/D13615
2022-01-25Revert "Performance: Remap multiple items in UI"Jeroen Bakker
This reverts commit 948211679f2a0681421160be0d3b90f507bc0be7. This commit introduced some regressions in the test suite. As this change is a core part of blender Bastien and I decided to revert it as the solution isn't clear and needs more investigation. The following tests FAILED: 62 - blendfile_liblink (SEGFAULT) 63 - blendfile_library_overrides (SEGFAULT) It fails in (id_us_ensure_real)
2022-01-25Performance: Remap multiple items in UIJeroen Bakker
During sprite fright loading of complex scenes would spend a long time in remapping ID's The remapping process is done on a per ID instance that resulted in a very time consuming process that goes over every possible ID reference to find out if it needs to be updated. If there are N of references to ID blocks and there are M ID blocks that needed to be remapped it would take N*M checks. These checks are scattered around the place and memory. Each reference would only be updated at most once, but most of the time no update is needed at all. Idea: By grouping the changes together will reduce the number of checks resulting in improved performance. This would only require N checks. Additional benefits is improved data locality as data is only loaded once in the L2 cache. It has be implemented for the resyncing process and UI editors. On an Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz 16Gig the resyncing process went from 170 seconds to 145 seconds (during hotspot recording). After this patch has been applied we could add similar approach to references (references between data blocks) and functionality (tagged deletion). In my understanding this could reduce the resyncing process to less than a second. Opening the village production file between 10 and 20 seconds. Flame graphs showing that UI remapping isn't visible anymore (`WM_main_remap_editor_id_reference`) * Master {F12769210 size=full} * This patch {F12769211 size=full} Reviewed By: mont29 Maniphest Tasks: T94185 Differential Revision: https://developer.blender.org/D13615
2022-01-24Cleanup: sort struct forward declarationsCampbell Barton
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
2022-01-11Spreadsheet: Add mesh topology information with a debug valueHans Goudey
This commit adds topology information from mesh data structs to the spreadsheet when the debug value `4001` is set. Eventually we could expose these. For now it can be a useful tool for developers when working on mesh algorithms. Differential Revision: https://developer.blender.org/D13735
2022-01-07Cleanup: remove redundant const qualifiers for POD typesCampbell Barton
MSVC used to warn about const mismatch for arguments passed by value. Remove these as newer versions of MSVC no longer show this warning.
2022-01-06Cleanup: Clang-tidy: modernize-redundant-void-argAaron Carlisle
2021-12-28Fix T94380: Scrolling zooms in spreadsheet data set regionHans Goudey
The region used to be type "Channels", but the standard for this type is "Tools", which is what the file browser uses. This follows the changes in rB01df48a98394, which also make the region more "standard."
2021-12-25Cleanup: use new c++ guarded allocator APIAaron Carlisle
API added in rBa3ad5abf2fe85d623f9e78fefc34e27bdc14632e
2021-12-17Cleanup: use new c++ guarded allocator api in some filesJacques Lucke
2021-12-15Refactor: Simplify spreadsheet handling of cell valuesHans Goudey
Previously we used a `CellValue` class to hold the data for a cell, and called a function to fill it whenever necessary. This is an unnecessary complication when we have virtual generic arrays and most data is already easily accessible that way anyway. This patch removes `CellValue` and uses `fn::GVArray` to provide access to data instead. In the future, if rows have different types within a single column, we can use a `GVArray` of `blender::Any` to interface with the drawing. Along with that, the use of virtual arrays made it easy to do a few other cleanups: - Use selection domain interpolations from rB5841f8656d95 for the mesh selection filter. - Change the row filter to only calculate for necessary indices. Differential Revision: https://developer.blender.org/D13478
2021-12-08Cleanup: move public doc-strings into headers for 'editors'Campbell Barton
Ref T92709
2021-12-08Cleanup: Clang-Tidy modernize-redundant-void-argAaron Carlisle
2021-12-07Cleanup: Fix various source typosluzpaz
This is a continuation of D13462 to clean up source typos. Differential Revision: https://developer.blender.org/D13471
2021-11-30Cleanup: clang-format, trailing spaceCampbell Barton
2021-11-28Cleanup: Deduplicate instances component in spreadsheetHans Goudey
Currently we have a separate `InstancesDataSource`, which does almost exactly the same thing as `GeometryDataSource`, except that it hardcodes a few more columns: "Name", "Rotation", and "Scale". We can easily replace that with a couple of if statements in the geometry data source. This also makes named attributes on instances display in the spreadsheet. Differential Revision: https://developer.blender.org/D13391
2021-11-23Merge branch 'blender-v3.0-release'Jacques Lucke
2021-11-23Fix T92654: missing padding in spreadsheet cellsJacques Lucke
This was probably broken by rB5c2330203e11e0d916960218b07d88d2193bf526. For now just add the padding back in a spreadsheet specific way. Differential Revision: https://developer.blender.org/D13315
2021-11-20Refactor: Port spreadsheet data set to UI tree viewHans Goudey
This patch removes a bunch of specific code for drawing the spreadsheet data set region, which was an overly specific solution for a generic UI. Nowadays, the UI tree view API used for asset browser catalogs is a much better way to implement this behavior. To make this possible, the tree view API is extended in a few ways. Collapsibility can now be turned off, and whether an item should be active is moved to a separate virtual function. The only visual change is that the items are now drawn in a box, just like the asset catalog. Differential Revision: https://developer.blender.org/D13198
2021-11-19Spreadsheet: Support instances component viewer node columnsHans Goudey
After rB97533eede444217b, instances have their own attribute domain, but the spreadsheet code worked under the assumption that the component used the point domain. Old files have to re-select the instances data source to make it properly active
2021-11-16Geometry Nodes: refactor virtual array systemJacques Lucke
Goals of this refactor: * Simplify creating virtual arrays. * Simplify passing virtual arrays around. * Simplify converting between typed and generic virtual arrays. * Reduce memory allocations. As a quick reminder, a virtual arrays is a data structure that behaves like an array (i.e. it can be accessed using an index). However, it may not actually be stored as array internally. The two most important implementations of virtual arrays are those that correspond to an actual plain array and those that have the same value for every index. However, many more implementations exist for various reasons (interfacing with legacy attributes, unified iterator over all points in multiple splines, ...). With this refactor the core types (`VArray`, `GVArray`, `VMutableArray` and `GVMutableArray`) can be used like "normal values". They typically live on the stack. Before, they were usually inside a `std::unique_ptr`. This makes passing them around much easier. Creation of new virtual arrays is also much simpler now due to some constructors. Memory allocations are reduced by making use of small object optimization inside the core types. Previously, `VArray` was a class with virtual methods that had to be overridden to change the behavior of a the virtual array. Now,`VArray` has a fixed size and has no virtual methods. Instead it contains a `VArrayImpl` that is similar to the old `VArray`. `VArrayImpl` should rarely ever be used directly, unless a new virtual array implementation is added. To support the small object optimization for many `VArrayImpl` classes, a new `blender::Any` type is added. It is similar to `std::any` with two additional features. It has an adjustable inline buffer size and alignment. The inline buffer size of `std::any` can't be relied on and is usually too small for our use case here. Furthermore, `blender::Any` can store additional user-defined type information without increasing the stack size. Differential Revision: https://developer.blender.org/D12986
2021-11-09Fix T92950: spreadsheet shows 0 instances when there are instancesJacques Lucke
Fix found by @erik85.
2021-11-05Cleanup (UI): Add/use type for operator context enumJulian Eisel
Adds a `wmOperatorCallContext` typedef for the existing `WM_OP_XXX` operator context enum. This adds type safety, allows the compiler to produce better warnings and helps understanding what a variable is for. Differential Revision: https://developer.blender.org/D13113 Reviewed by: Campbell Barton
2021-11-04Cleanup: fix compiler warningsJacques Lucke
Those were introduced in rBccead2ed9c6121c42a516712da38a2faec877e2f.
2021-11-03Spreadsheet: Display geometry volume component gridsHans Goudey
This shows a geometry's volume grids in the spreadsheet. Three columns are displayed: - Name: The text name of each grid - Data type: Float, Vector, etc. - Class: Fog volume, Level Set, or unkown In the future, values of the voxels themselves could be displayed, but that is a much more complex problem, with important performance implications, etc. Differential Revision: https://developer.blender.org/D13049
2021-11-01Fix T92655: spreadsheet_duplicate Split ExceptionHarley Acheson
Check SpaceSpreadsheet's runtime is not null when trying to duplicate the data when doing an area split. See D13047 for further details. Differential Revision: https://developer.blender.org/D13047 Reviewed by Jacques Lucke
2021-11-01Fix T92655: spreadsheet_duplicate Split ExceptionHarley Acheson
Check SpaceSpreadsheet's runtime is not null when trying to duplicate the data when doing an area split. See D13047 for further details. Differential Revision: https://developer.blender.org/D13047 Reviewed by Jacques Lucke
2021-10-29Fix T92476: wrong context in spreadsheet when area is maximizedJacques Lucke
Now, if a spreadsheet editor is maximized, it looks for its context in the unmaximized screen "below".
2021-10-27Spreadsheet: make id column a bit widerJacques Lucke
Ids can often be relatively large numbers when they are generated automatically.
2021-10-27Spreadsheet: use "id" instead of "ID" as column nameJacques Lucke
The lower case name is the internal name and will be exposed more to the user once we have instance attributes.
2021-10-26Geometry Nodes: Only create instance IDs when they existHans Goudey
Instance IDs serve no purpose for rendering when they aren't stable from one frame to the next, and if the index is used in the end anyway, there is no point in storing a vector of IDs and copying it around. This commit exposes the `id` attribute on the instances component, makes it optional-- only generated by default with the distribute points on faces node. Since the string to curves node only added the index as each instance's ID, I removed it. This means that it would be necessary to add the ID data manually if the initial index actually helps (when deleting only certain characters, for example). Differential Revision: https://developer.blender.org/D12980
2021-10-26Geometry Nodes: don't log full fields when not necessaryJacques Lucke
Previously, the field on every socket was logged for later use. This had two main negative consequences: * Increased memory usage, because the fields may contain a lot of data under some circumstances (e.g. a Ray Cast field contains the target geometry). * Decreased performance, because anonymous attributes could not be removed from geometry automatically, because there were still fields that referenced them. Now most fields are not logged anymore. Only those that are viewed by a spreadsheet and constant fields. The required inputs of a field are still logged in string form to keep socket inspection working.
2021-10-26Geometry Nodes: support viewing field values in spreadsheetJacques Lucke
The viewer node has been expanded to have a field input next to the geometry input. When both are connected (by ctrl+shift clicking on a node) the spreadsheet will show the evaluated field on the geometry. The operator to link to the viewer has become a bit smarter. It automatically detects if it should link to the geometry or field input. In the future some more smartness could be added, such as automatically relinking the "right" geometry when viewing a field. Internally, there are two major changes: * Refactor of what happens when ctrl+shift clicking on a node to link to a viewer. The behavior of the geometry nodes viewer is a bit more complex than that of the compositor viewers. The behavior in compositing nodes should not have changed. Any change should be reported as a bug (and then we can decide if it's worse than before or if it needs fixing). * Evaluation, display and caching of fields in the spreadsheet editor. Differential Revision: https://developer.blender.org/D12938
2021-10-20Cleanup: use an array for wmEvent cursor position variablesAaron Carlisle
Use arrays for wmEvent coordinates, this quiets warnings with GCC11. - `x, y` -> `xy`. - `prevx, prevy` -> `prev_xy`. - `prevclickx, prevclicky` -> `prev_click_xy`. There is still some cleanup such as using `copy_v2_v2_int()`, this can be done separately. Reviewed By: campbellbarton, Severin Ref D12901
2021-10-18Cleanup: clang formatPhilipp Oeser
2021-10-17UI: Visual style update to panelsPablo Vazquez
Back in Blender 2.30, the GUI project brought panels into Blender among other important visual updates. For the first time it was possible to move the wall of buttons around. Providing a clear separation between sections (it even allowed the grouping of panels in tabs!) During the 2.5 redesign, the separation between panels became a line on top of each panel, and panels received theme settings for background and header colors. The default theme used the same color for both. In 2.8 the background color of panels was different from headers in the default theme, so the separator line was removed. While the separator line wasn't elegant (only on top, non-themeable, hard-coded emboss effect), it provided a sort of separation between panels. This patch solves the panels-separation by simply adding a margin space around them (not visible in default theme yet). Even though the margin reduces the width of the working area slightly, it makes room for the upcoming always-visible scrollbars. Other adjustments: * Use arrow icon instead of triangle to collapse/expand * Use rounded corners to match the rest of the UI (editor corners, nodes, etc). {F10953929, size=full} Margin on panels makes use of the `style->panelouter` property that hasn't been used in a while. Also slight tweaks to `boxspace` and `templatespace` style properties so they are multiples of 2 and operations on them round better. There is technically no need to update the themes for them to work, so no theme changes are included in this patch. {F10953931, size=full} {F10953933, size=full} {F10953934, size=full} {F10954003, size=full} ---- A new theme setting under Style controls the roundness of all panels (added it to Style instead of ThemeSpace because I think controlling the panel roundness per editor is a bit overkill): {F11091561, size=full, autoplay, loop} Reviewed By: HooglyBoogly Differential Revision: https://developer.blender.org/D12814
2021-09-15Fix: Use after free in spreadsheet attribute column IDHans Goudey
A temporary string was created in the attribute_foreach callback and used in a map at a higher scope. When the callback finished, the string went out of scope, was freed, then the elements in the set pointed to freed memory.
2021-09-14Cleanup: simplify resource scope methodsJacques Lucke
Previously, a debug name had to be passed to all methods that added a resource to the `ResourceScope`. The idea was that this would make it easier to find certain bugs. In reality I never found this to be useful, and it was mostly annoying. The thing is, something that is in a resource scope never leaks (unless the resource scope is not destructed of course). Removing the name parameter makes the structure easier to use.
2021-09-11Geometry Nodes: Support modifier on curve objectsHans Goudey
With this commit, curve objects support the geometry nodes modifier. Curves objects now evaluate to `CurveEval` unless there was a previous implicit conversion (tessellating modifiers, mesh modifiers, or the settings in the curve "Geometry" panel). In the new code, curves are only considered to be the wire edges-- any generated surface is a mesh instead, stored in the evaluated geometry set. The consolidation of concepts mentioned above allows remove a lot of code that had to do with maintaining the `DispList` type temporarily for modifiers and rendering. Instead, render engines see a separate object for the mesh from the mesh geometry component, and when the curve object evaluates to a curve, the `CurveEval` is always used for drawing wire edges. However, currently the `DispList` type is still maintained and used as an intermediate step in implicit mesh conversion. In the future, more uses of it could be changed to use `CurveEval` and `Mesh` instead. This is mostly not changed behavior, it is just a formalization of existing logic after recent fixes for 2.8 versions last year and two years ago. Also, in the future more functionality can be converted to nodes, removing cases of implicit conversions. For more discussion on that topic, see T89676. The `use_fill_deform` option is removed. It has not worked properly since 2.62, and the choice for filling a curve before or after deformation will work much better and be clearer with a node system. Applying the geometry nodes modifier to generate a curve is not implemented with this commit, so applying the modifier won't work at all. This is a separate technical challenge, and should be solved in a separate step. Differential Revision: https://developer.blender.org/D11597
2021-09-09Geometry Nodes: fields and anonymous attributesJacques Lucke
This implements the initial core framework for fields and anonymous attributes (also see T91274). The new functionality is hidden behind the "Geometry Nodes Fields" feature flag. When enabled in the user preferences, the following new nodes become available: `Position`, `Index`, `Normal`, `Set Position` and `Attribute Capture`. Socket inspection has not been updated to work with fields yet. Besides these changes at the user level, this patch contains the ground work for: * building and evaluating fields at run-time (`FN_fields.hh`) and * creating and accessing anonymous attributes on geometry (`BKE_anonymous_attribute.h`). For evaluating fields we use a new so called multi-function procedure (`FN_multi_function_procedure.hh`). It allows composing multi-functions in arbitrary ways and supports efficient evaluation as is required by fields. See `FN_multi_function_procedure.hh` for more details on how this evaluation mechanism can be used. A new `AttributeIDRef` has been added which allows handling named and anonymous attributes in the same way in many places. Hans and I worked on this patch together. Differential Revision: https://developer.blender.org/D12414