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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
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Reduction of the number of uses of the define BLF_DRAW_STR_DUMMY_MAX
by using actual sizes of static character arrays.
See D13793 for more details.
Differential Revision: https://developer.blender.org/D13793
Reviewed by Campbell Barton
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`SOCK_IN_USE` is now set in `update_socket_used_tags` in
`node_tree_update.cc` when a node tree is changed.
It doesn't need to run every single redraw. Removing this
results in a small speedup of 0.4 ms when drawing a tree
with about 4000 nodes (from about 70 ms total).
Differential Revision: https://developer.blender.org/D13645
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Goals of this refactor:
* More unified approach to updating everything that needs to be updated
after a change in a node tree.
* The updates should happen in the correct order and quadratic or worse
algorithms should be avoided.
* Improve detection of changes to the output to avoid tagging the depsgraph
when it's not necessary.
* Move towards a more declarative style of defining nodes by having a
more centralized update procedure.
The refactor consists of two main parts:
* Node tree tagging and update refactor.
* Generally, when changes are done to a node tree, it is tagged dirty
until a global update function is called that updates everything in
the correct order.
* The tagging is more fine-grained compared to before, to allow for more
precise depsgraph update tagging.
* Depsgraph changes.
* The shading specific depsgraph node for node trees as been removed.
* Instead, there is a new `NTREE_OUTPUT` depsgrap node, which is only
tagged when the output of the node tree changed (e.g. the Group Output
or Material Output node).
* The copy-on-write relation from node trees to the data block they are
embedded in is now non-flushing. This avoids e.g. triggering a material
update after the shader node tree changed in unrelated ways. Instead
the material has a flushing relation to the new `NTREE_OUTPUT` node now.
* The depsgraph no longer reports data block changes through to cycles
through `Depsgraph.updates` when only the node tree changed in ways
that do not affect the output.
Avoiding unnecessary updates seems to work well for geometry nodes and cycles.
The situation is a bit worse when there are drivers on the node tree, but that
could potentially be improved separately in the future.
Avoiding updates in eevee and the compositor is more tricky, but also less urgent.
* Eevee updates are triggered by calling `DRW_notify_view_update` in
`ED_render_view3d_update` indirectly from `DEG_editors_update`.
* Compositor updates are triggered by `ED_node_composite_job` in `node_area_refresh`.
This is triggered by calling `ED_area_tag_refresh` in `node_area_listener`.
Removing updates always has the risk of breaking some dependency that no
one was aware of. It's not unlikely that this will happen here as well. Adding
back missing updates should be quite a bit easier than getting rid of
unnecessary updates though.
Differential Revision: https://developer.blender.org/D13246
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Before d56bbfea7b420d7, nodes were updated (size calculated and
buttons added) in reverse order. Instead, now calculate the size of
frame nodes after all other nodes. Separating the drawing further
may be a good step to removing the O(n^2) loop later on.
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The patch fixes some misalignments in the nodes' sockets/options
recently introduced in 26d2caee3ba0, while maintaining the original
fix for T92268.
The original fix made the top padding always of the same size; while
that works when the first row of the other node is `Socket | Socket`,
it doesn't for other more common cases, `like Socket | Node Option`,
where the text results misaligned.
Differential Revision: https://developer.blender.org/D13451
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Code is simpler when the uiBlocks used during drawing are simply
stored in an array. Additionally, looping can be simpler when we use
an vector to hold a temporary copy of the tree's linked list of nodes.
This patch also slightly changes how uiBlocks are "named" in
`node_uiblocks_init`. Now it uses the node name instead of the
pointer, which is helpful so we rely less on the node's address.
Differential Revision: https://developer.blender.org/D13540
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Also remove unnecessary function to set a node type's
label function that duplicated its definition, and make
another function static.
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I assume this `butr` rectangle was used more in the past,
but currently its value is set and used less than 10 lines apart,
so it's trivial to remove 16 bytes from every node. The other
rectangles are also runtime data and could be removed, but
they are more difficult.
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Though the interfacing with `rctf` becomes slightly more complicated,
this should be more helpful as more of this code usese `float2` instead
of two separate floats.
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Ref T92709
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As a followup to 338c1060d5d7, apply the same change to the node
drawing callback. This helps to simplify code when the complexity
of a callback isn't necessary right now.
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Currently there are a few callbacks on `bNodeType` that do the same
thing for every node type except reroutes and frame nodes. Having a
callback for basic things complicates code and makes it harder to
understand, and reroutes and frames are special cases in larger way.
Arguably frame nodes shouldn't even be drawn like regular nodes,
given that it adds a case of O(N^2) looping through all nodes.
"Unrolling" the callbacks makes it easier to see what's happening,
and therefore easier to optimize.
Differential Revision: https://developer.blender.org/D13463
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This helps to tell when a pointer is expected to be null, and avoid
overly verbose code when dereferencing. This commit also includes
a few other cleanups in this area:
- Use const in a few places
- Use `float2` instead of `float[2]`
- Remove some unnecessary includes and old code
The change can be continued further in the future.
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The group output node did not have the same size padding as the group
input, leading to the node looking different and actually being smaller.
Differential Revision: https://developer.blender.org/D13092
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Since we have the overlays popover, it makes sense to allow toggling the
context path like in the 3D viewport. This commit adds a property,
and turns it on by default in existing files.
Differential Revision: https://developer.blender.org/D13248
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This is only meant to be used for development purposes for now,
not to show warnings to the user.
Differential Revision: https://developer.blender.org/D13348
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`std::stringstream` already returns a `std::string`, and there is no
particular reason to use short here instead of int.
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Adds a new overlay called "Timings" to the Geometry Node editor.
This shows the node execution time in milliseconds above the node.
For group nodes and frames, the total time for all nodes inside
(recursively) is shown. Group output node shows the node tree total.
The code is prepared for easily adding new rows of information
to the box above the node in the future.
Differential Revision: https://developer.blender.org/D13256
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Currently the geometry nodes evaluator always stores a field for every
type that supports it, even if it is just a single value. This results in a lot
of overhead when there are many sockets that just contain a single
value, which is often the case.
This introduces a new `ValueOrField<T>` type that is used by the geometry
nodes evaluator. Now a field will only be created when it is actually
necessary. See D13307 for more details. In extrem cases this can speed
up the evaluation 2-3x (those cases are probably never hit in practice
though, but it's good to get rid of unnecessary overhead nevertheless).
Differential Revision: https://developer.blender.org/D13307
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Now that `node_intern.hh` is a C++ header, we can use C++ types
there. This patch replaces the linked list of dragged links with a
vector. Also, the list of drag operator custom data, `nldrag`, doesn't
seem to need to be a list at all, so I just made it a unique pointer.
Differential Revision: https://developer.blender.org/D13252
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Socket drawing can be heavy with many nodes.
This patch skips drawing them on scale < 0.2
when they are barely visible anyway.
Differential Revision: https://developer.blender.org/D13255
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Differential Revision: https://developer.blender.org/D13200
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Previously, to get the declaration of a socket, one had to go
through `node->declaration`. Now this indirection is not necessary
anymore. This makes it easier to add more per-socket information
into the declaration and accessing it in various places.
Currently, this system is used by socket descriptions and node warnings
for unsupported geometry component types.
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Size, position and scale of the "two-line" widget (the one to scale a
node horizontally) was not taking interface scale into account. In the
case of the report, it could happen it draws behind an output socket.
before (at 2.0 interface scale)
{F11698493}
after (at 2.0 interface scale)
{F11698501}
Maniphest Tasks: T92791
Differential Revision: https://developer.blender.org/D13088
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Currently, colored links overlay only supports standard sockets defined
by Blender. Some add-ons like Animation Nodes defines custom sockets for
everything and hence doesn't get colored sockets.
This patch uses the draw color from the socket type info to draw links
in order to support custom sockets.
Differential Revision: https://developer.blender.org/D13044
Reviewed By: Hans Goudey
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Use `UI_GetThemeColorBlend4f` instead of manually setting alpha opaque.
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Always draw header opaque, set transparency only once after getting
the color. Helps to unify the color and alpha values.
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This patch changes how nodes look visually, in an attempt to fix a number of issues:
* The header background is currently drawn using a theme color fully opaque, this limits the colors we can use because the node name/label is drawn on top.
* Hard-coded transparency makes nodes hard to read. The node backdrop already has alpha so if the user wants it they can set it. This patch uses alpha from the theme.
* Better muted status indicator, instead of simply making everything transparent and the wires inside red, draw a red outline around the node, darken the header and backdrop.
* On muted nodes, display wires behind the backdrop to not interfere with text/widgets inside the node.
Nodes:
* Darken header to improve readability of node label.
* Draw a line under the header
* Thicker outline.
* Do not hard-code transparency on nodes, use the theme's node backdrop alpha component.
* Use angle icon instead of triangle (to be consistent with the [[ https://developer.blender.org/D12814 | changes ]] to panels)
Style adjustment to sockets drawing:
* Do not hard-code the socket outline color to black, use `TH_WIRE` instead
* Do not use `TH_TEXT_HI` for selected sockets, use `TH_ACTIVE` (active node outline)
* Do not draw sockets background transparent on muted nodes.
* Thicker outline to help contrast and readability
{F11496707, size=full}
Reviewed By: #user_interface, HooglyBoogly
Differential Revision: https://developer.blender.org/D12884
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This patch upgrades node editor breadcrumbs to have slightly more
visual weight, to including the base path of object/modifier/world,
etc, have more visually pleasing spacing, and contain icons.
In the code, a generic "context path" is added to interface code.
The idea is that this could be used to draw other breadcrumbs in areas
like the property editor or the spreadsheet, and features could be added
to all of those areas at the same time.
Ideally we would be able to control the color of the breadcrumbs with a
specific theme color, but since they are drawn with the regular layout
system, that is not easily possible.
Thanks to @fabian_schempp for the original patch.
Differential Revision: https://developer.blender.org/D10413
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This changes socket inspection for fields according to T91881.
Differential Revision: https://developer.blender.org/D13006
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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.
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This patch makes the background grid of the node editor a grid of dots
instead of lines. This makes the background look a bit more subtle and
reduces visual complexity. The dots are meant to provide a reference
when panning and zooming. Based on the design of @pablovazquez, and
a patch originally authored by @fabian_schempp.
The "Grid Levels" controls how many levels of dots are drawn. As the
editor zooms in, the higher levels of dots fade in, making them closer
together visually. The zoom factor at which each grid starts and ends
fading in is controllable in the code, and could be tweaked further
in the future. The new default value is 7, out of a range from 0 to 9.
Differential Revision: https://developer.blender.org/D10345
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This patch includes code from D9891 and D12754, so credit goes to Juanfran and Dalai.
I updated the patches to work with `master` and with the new overlay toggle.
The reason to include both changes as part of one patch is that the dimmed dashed lines work much better together with colored wires.
Theme setting for dash opacity:
{F11370574, size=full}
{F11286177, size=full, autoplay, loop}
{F11149912, size=full}
For adding the overlay I used `SpaceImageOverlay` as reference, although I'm not familiar with this code so there might be mistakes.
Reviewed By: #user_interface, HooglyBoogly
Differential Revision: https://developer.blender.org/D12886
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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
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The sockets are not exposed in any nodes yet.
They work similar to the Object/Collection/Texture sockets,
which also just reference a data block.
Based on rB207472930834
Reviewed By: JacquesLucke
Differential Revision: https://developer.blender.org/D12861
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In the original code depth=0 meant that there was no parents. But with
BLI_listbase_count we have depth 1 in those cases.
Differential Revision: https://developer.blender.org/D12817
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This seems to happen only in a few files, and not so trivial to
reproduce from scratch.
The crash is real though, and this fixes it.
It also fix a wrong comment style that was introduced in the same faulty
commit.
Bug introduced on ebe23745281e86.
Differential Revision: https://developer.blender.org/D12794
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The breadcrumbs alone may not be enough to indicate that a user is
inside a nodegroup. The original dark green color was a bit overwhelming
but having a different background helps.
This is a follow up to 919e513fa8f9f.
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The current background color and parent nodetrees is too distracting and noisy.
It drastically affect the readability of the nested node-trees.
Other techniques (better bread crumbs) can be used instead to indicate
to users that they are inside a node group.
---
The background drawing was introduced in 4638e5f99a9ba as part of the
Python Nodes branch merge. This made its debut in Blender 2.67
(30/May/2021).
At the time the color used for the background was a light gray. Over the
years the color changed to the current dark green, aggravating the
problem further.
Before that, the (expanded) nodegroup already had the partially
transparent background, mingling with the other nodes. The Python Nodes
branch brought this concept with its changes, and would always draw up
to two levels up in the background (the parent nodetree, and its parent
nodetree).
To read the original inspiration for all the changes introduced then:
https://code.blender.org/2012/01/improving-node-group-interface-editing/
Differential Revision: https://developer.blender.org/D12780
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This bug was introduced in rBef45399f3be0955ba8.
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This adds initial limited support for socket tooltips. It's limited
in a couple of ways for now:
* Only works when hovering over the socket shape, not when hovering
over the value in the socket.
* Only works for built-in nodes that already use the new node
declaration system. This can later be extended to support pynodes.
Those limitations are well worth it for now, given that the
implementation is quite simple and the impact on usability is quite
large. More complex updates to the layout system, that would allow
showing socket tooltips in the nodes, can be done later. With the
current implementation we can at least start writing tooltips for
geometry nodes now.
This commit already adds tooltips for the Cylinder node as an example.
Differential Revision: https://developer.blender.org/D12607
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No functional change.
The shader is complicated by itself, having hardcoded values makes it
even more cryptic.
I also renamed the shader because the shader is not for the keyfarme diamond only,
but for all the keyframe shapes.
Differential Revision: https://developer.blender.org/D12615
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