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This name doesn't require understanding of fields, and
is phrased as an action which is consistent with other nodes.
Discussed in the latest geometry nodes sub-module meeting.
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This now use default angle precision which matches the sun rotation.
Feeling is much more natural.
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The Nishita sky texture currently only allows moving the sun to the zenith.
The problem is if you want to animate the passing of a full night-day-night
cycle. Currently it's not easy to do due to this limitation.
The patch makes it so users can easily animate the sun moving from sunrise
to sunset by expanding the max sun elevation to go 360° instead of 90°.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D13724
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This reverts commit 9bb2afb55e50f9353cfc76cf2d8df7521b0b5feb.
Oops, did not intend to commit this to master.
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This is the start of a geometry node to do edge, vertex, and face
bevels.
It doesn't yet do anything but analyze the "Vertex cap" around
selected vertices for vertex bevel.
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This commit adds new Unwrap and Pack Islands nodes, with equivalent
functionality to the existing Unwrap and Pack Islands operators. The
Unwrap node uses generic boolean attributes to determine seams instead
of looking at the seam flags in the mesh geometry.
Unlike the Unwrap operator, the Unwrap node doesn't perform aspect
ratio correction, because this is trivial for the user to implement
with a Vector Math node if it is desired.
The Unwrap node implicitly performs a Pack Islands operation upon
completion, because the results may not be generally useful otherwise.
This matches the behaviour of the Unwrap operator.
The nodes use the existing Vector socket type, and do not introduce a
new 2D Vector type (see T92765).
Differential Revision: https://developer.blender.org/D14389
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This adds a Mesh To Volume Node T86838 based on the existing modifier.
The mesh to volume conversion is implemented in the geometry module,
and shared between the node and the modifier.
Currently the node outputs a grid with the name "density". This may
change in the future depending on the decisions made in T91668.
The original patch was by Kris (@Metricity), further implementation
by Geramy Loveless (@GeramyLoveless), then finished by Erik Abrahamsson
(@erik85).
Differential Revision: https://developer.blender.org/D10895
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As described in T98943, this commit adds a node that can
evaluate a field on a separate domain in a larger field context.
This is potentially useful in many cases, to avoid relying on
a separate capture attribute node, which can make it easier
to build reusable fields that don't need geometry inputs.
Internally, the node just evaluates the input field in the larger
field context and then uses the generic domain interpolation,
so the code is simple. One future optimization might be using
the input selection to only evaluate part of the input field, but
then the selection has to be interpolated as well, and that might
not always be worth it.
Differential Revision: https://developer.blender.org/D15289
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Refactor the code, and optimize it slightly (no need e.g. to check for
nodes when the nodetree is of a type that cannot have image user nodes).
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This commit ports the "Set Spline Type" node to the new curves type.
Performance should be improved in similar ways to the other refactors
from the conversion task (T95443). Converting to and from Catmull Rom
curves is now supported. There are a few cases where a lot of work can
be skipped: when the number of points doesn't change, and when the
types already match the goal type.
The refactor has a few other explicit goals as well:
- Don't count on initialization of attribute arrays when they are
first allocated.
- Avoid copying the entire data-block when possible.
- Make decisions about which attributes to copy when changing curves
more obvious.
- Use higher-level methods to copy data between curve points.
- Optimize for the common cases of single types and full selections.
- Process selected curves of the same types in the same loop.
The Bezier to NURBS conversion is written by Piotr Makal (@pmakal).
Differential Revision: https://developer.blender.org/D14769
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Add the following macros for enums as support for these features wasn't
all that obvious and there were some inconsistencies in their use.
- RNA_ENUM_ITEM_HEADING(name, description)
- RNA_ENUM_ITEM_SEPR
- RNA_ENUM_ITEM_SEPR_COLUMN
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Differential Revision: https://developer.blender.org/D14878
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This commit makes PointerRNA passed to RNA path API const.
Main change was in the `path` callback for RNA structs, and indirectly
the `getlength` callback of properties.
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Geometry Nodes (new) icon. So far we were using the generic node-tree
icon for geometry nodes, not anymore.
The new icon is composed of 4 spheres that is a reference to the
original pebbles demo. Scattering points was also the turning point for
the project (which originally was focusing on dynamic effects), and to
this day is one of the first steps for everything procedural such as
hair.
Note that the modifier icon is still showing as white in the outliner.
The alternative is to be blue everywhere.
Patch review and feedback by Hans Goudey.
Icon creation in collaboration with Pablo Vazquez.
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Inspired by D12936 and D12929, this patch adds general purpose
"Combine Color" and "Separate Color" nodes to Geometry, Compositor,
Shader and Texture nodes.
- Within Geometry Nodes, it replaces the existing "Combine RGB" and
"Separate RGB" nodes.
- Within Compositor Nodes, it replaces the existing
"Combine RGBA/HSVA/YCbCrA/YUVA" and "Separate RGBA/HSVA/YCbCrA/YUVA"
nodes.
- Within Texture Nodes, it replaces the existing "Combine RGBA" and
"Separate RGBA" nodes.
- Within Shader Nodes, it replaces the existing "Combine RGB/HSV" and
"Separate RGB/HSV" nodes.
Python addons have not been updated to the new nodes yet.
**New shader code**
In node_color.h, color.h and gpu_shader_material_color_util.glsl,
missing methods hsl_to_rgb and rgb_to_hsl are added by directly
converting existing C code. They always produce the same result.
**Old code**
As requested by T96219, old nodes still exist but are not displayed in
the add menu. This means Python scripts can still create them as usual.
Otherwise, versioning replaces the old nodes with the new nodes when
opening .blend files.
Differential Revision: https://developer.blender.org/D14034
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- Fix default_value initialization of custom node tree interface:
This was crashing when adding a custom interface socket to a tree.
The node_socket_set_typeinfo function was called too early, creating a
default float socket, which then doesn't match the socket type after
changing to the custom type.
The node_socket_set_typeinfo only allocates and initializes
default_value when it isn't already set. That is because the function is
used either when creating new sockets or to initialize typeinfo after
loading files. So default_value has to be either null or has to be
matching the current type already.
- Fix RNA flag for string return value of the valid_socket_type callback:
String return values of registerable RNA functions need a
PROP_THICK_WRAP flag since they don't have a fixed buffer to write into.
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Geometry node group inputs and outputs get a new property that controls
the attribute name used for that field input/output when assigning the
node group to a modifier for the first time. If the default name is assigned
to an input, the default "Use attribute name" is true .
In order to properly detect when a node group is first assigned,
the modifier now clears its properties when clearing the node group.
Ref T96707
Differential Revision: https://developer.blender.org/D14761
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Since {rBeae36be372a6b16ee3e76eff0485a47da4f3c230} the distinction
between float and byte colors is more explicit in the ui. So far, geometry
nodes couldn't really deal with byte colors in general. This patch fixes that.
There is still only one color socket, which contains float colors. Conversion
to and from byte colors is done when read from or writing to attributes.
* Support writing to byte color attributes in Store Named Attribute node.
* Support converting to/from byte color in attribute conversion operator.
* Support propagating byte color attributes.
* Add all the implicit conversions from byte colors to the other types.
* Display byte colors as integers in spreadsheet.
Differential Revision: https://developer.blender.org/D14705
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Previously this would silently return `None`.
Now the behavior is similar to when new sockets are added to a node.
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Expose the "Connected" mode from the weld modifier in the
"Merge by Distance" geometry node. This method only merges
vertices along existing edges, but it can be much faster
because it doesn't have to build a KD Tree of all selected
points.
Differential Revision: https://developer.blender.org/D14321
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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
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`RNA_def_struct_ui_text(srna, ...)` was reused for `is_valid` and `is_muted`
which would set the documentation to theirs (actually to that of the last
call).
`RNA_def_property_ui_text(prop, ...)` should be used for the properties.
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This commit removes the implementations of legacy nodes,
their type definitions, and related code that becomes unused.
Now that we have two releases that included the legacy nodes,
there is not much reason to include them still. Removing the
code means refactoring will be easier, and old code doesn't
have to be tested and maintained.
After this commit, the legacy nodes will be undefined in the UI,
so 3.0 or 3.1 should be used to convert files to the fields system.
The net change is 12184 lines removed!
The tooltip for legacy nodes mentioned that we would remove
them before 4.0, which was purposefully a bit vague to allow
us this flexibility. In a poll in a devtalk post showed that the
majority of people were okay with removing the nodes.
https://devtalk.blender.org/t/geometry-nodes-backward-compatibility-poll/20199
Differential Revision: https://developer.blender.org/D14353
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This commit adds three nodes:
- `Remove Attribute`: Removes an attribute with the given name
- `Named Attribute`: A field input node
- `Store Named Attribute`: Puts results of a field in a named attribute
They are added behind a new experimental feature flag, because further
development of attribute search and name dependency visualization will
happen as separate steps.
Ref T91742
Differential Revision: https://developer.blender.org/D12685
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This is essentially the same fix as in rB22a341d9d8d3d337f79df228ab2e4e0726f81430.
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Differential Revision: https://developer.blender.org/D14301
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I've had trouble finding this node a few times now,
it's simpler if the file name matches the name in the UI.
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This adds a node which copies part of a geometry a dynamic number
of times.
Different parts of the geometry can be copied differing amounts
of times, controlled by the amount input field. Geometry can also
be ignored by use of the selection input.
The output geometry contains only the copies created by the node.
if the amount input is set to zero, the output geometry will be
empty. The duplicate index output is an integer index with the copy
number of each duplicate.
Differential Revision: https://developer.blender.org/D13701
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This commit renames enums related the "Curve" object type and ID type
to add `_LEGACY` to the end. The idea is to make our aspirations clearer
in the code and to avoid ambiguities between `CURVE` and `CURVES`.
Ref T95355
To summarize for the record, the plans are:
- In the short/medium term, replace the `Curve` object data type with
`Curves`
- In the longer term (no immediate plans), use a proper data block for
3D text and surfaces.
Differential Revision: https://developer.blender.org/D14114
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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
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Added a new "Sharpen Less" kernel to the filter compositor node. The intent here is to provide a much less aggressive sharpening filter that can't simply be solved by toning down the factor on the existing sharpen filter.
The existing "Sharpen" filter uses a "box" kernel:
```
-1 -1 -1
-1 9 -1
-1 -1 -1
```
The new "Sharpen Less" filter uses a "diamond" kernel:
```
0 -1 0
-1 5 -1
0 -1 0
```
The difference between the two is clear to see in the following side-by-side:
{F12847431}
Below shows the difference between the filtering kernels as applied to a B&W render of Suzanne with the UV grid as a texture. The left side of the render using the existing "Sharpen" filter, and the right side showing the new "Sharpen Less" filter. Notice that the left side is more aggressive in accentuating localized contrasts across the image. This can lead to what appears to be aliasing or striations in the resulting image:
{F12847429}
https://developer.blender.org/T95275
https://blender.community/c/rightclickselect/57Kq/?sorting=hot
{F12847428}
Reviewed By: #compositing, jbakker
Differential Revision: https://developer.blender.org/D14019
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The geometry nodes modifier currently always adds a dependency
relation from the evaluated geometry to the object transform. However,
that can be avoided unless there is a collection or object info node in
"Relative" mode.
In order to avoid requiring dependency graph relations updates often
when editing a node tree, this patch doesn't check if the node is muted
or if the data-block sockets are empty before adding the dependency.
Fixes T95265
Differential Revision: https://developer.blender.org/D13973
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Adds two new attribute outputs:
"Line" outputs the line number of the character.
"Pivot Point" outputs the selected pivot point position per char.
Some refactoring of the text layout code.
Differential Revision: https://developer.blender.org/D13694
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Currently the Boolean Math node only has 3 basic logic gates:
AND, OR, and NOT. This commit adds 6 additional logic gates
for convenience and ease of use.
- **Not And (NAND)** returns true when at least one input is false.
- **Nor (NOR)** returns true when both inputs are false.
- **Equal (XNOR)** returns true when both inputs are equal.
- **Not Equal (XOR)** returns true when both inputs are different.
- **Imply (IMPLY)** returns true unless the first input is true and
the second is false.
- **Subtract (NIMPLY)** returns true when the first input is true and
the second is false.
Differential Revision: https://developer.blender.org/D13774
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Currently there are many function declarations in `BKE_node.h` that
don't actually have implementations in blenkernel. This commit moves
the declarations to `NOD_composite.h`, `NOD_texture.h`, and
`NOD_shader.h` instead. This helps to clarify the purpose of the
different modules.
Differential Revision: https://developer.blender.org/D13869
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This patch introduces an extrude node with three modes. The vertex mode
is quite simple, and just attaches new edges to the selected vertices.
The edge mode attaches new faces to the selected edges. The faces mode
extrudes patches of selected faces, or each selected face individually,
depending on the "Individual" boolean input.
The default value of the "Offset" input is the mesh's normals, which
can be scaled with the "Offset Scale" input.
**Attribute Propagation**
Attributes are transferred to the new elements with specific rules.
Attributes will never change domains for interpolations. Generally
boolean attributes are propagated with "or", meaning any connected
"true" value that is mixed in for other types will cause the new value
to be "true" as well. The `"id"` attribute does not have any special
handling currently.
Vertex Mode
- Vertex: Copied values of selected vertices.
- Edge: Averaged values of selected edges. For booleans, edges are
selected if any connected edges are selected.
Edge Mode
- Vertex: Copied values of extruded vertices.
- Connecting edges (vertical): Average values of connected extruded
edges. For booleans, the edges are selected if any connected
extruded edges are selected.
- Duplicate edges: Copied values of selected edges.
- Face: Averaged values of all faces connected to the selected edge.
For booleans, faces are selected if any connected original faces
are selected.
- Corner: Averaged values of corresponding corners in all faces
connected to selected edges. For booleans, corners are selected
if one of those corners are selected.
Face Mode
- Vertex: Copied values of extruded vertices.
- Connecting edges (vertical): Average values of connected selected
edges, not including the edges "on top" of extruded regions.
For booleans, edges are selected when any connected extruded edges
were selected.
- Duplicate edges: Copied values of extruded edges.
- Face: Copied values of the corresponding selected faces.
- Corner: Copied values of corresponding corners in selected faces.
Individual Face Mode
- Vertex: Copied values of extruded vertices.
- Connecting edges (vertical): Average values of the two neighboring
edges on each extruded face. For booleans, edges are selected
when at least one neighbor on the extruded face was selected.
- Duplicate edges: Copied values of extruded edges.
- Face: Copied values of the corresponding selected faces.
- Corner: Copied values of corresponding corners in selected faces.
**Differences from edit mode**
In face mode (non-individual), the behavior can be different than the
extrude tools in edit mode-- this node doesn't handle keeping the back-
faces around in the cases that the edit mode tools do. The planned
"Solidify" node will handle that use case instead. Keeping this node
simpler and faster is preferable at this point, especially because that
sort of "smart" behavior is not that predictable and makes less sense
in a procedural context.
In the future, an "Even Offset" option could be added to this node
hopefully fairly simply. For now it is left out in order to keep
the patch simpler.
**Implementation**
For the implementation, the `Mesh` data structure is used directly
rather than converting to `BMesh` and back like D12224. This optimizes
for large extrusion operations rather than many sequential extrusions.
While this is potentially more verbose, it has some important benefits:
First, there is no conversion to and from `BMesh`. The code only has
to fill arrays and it can do that all at once, making each component of
the algorithm much easier to optimize. It also makes the attribute
interpolation more explicit, and likely faster. Only limited topology
maps must be created in most cases.
While there are some necessary loops and allocations with the size of
the entire mesh, I tried to keep everything I could on the order of the
size of the selection rather than the size of the mesh. In that respect,
the individual faces mode is the best, since there is no topology
information necessary, and the amount of work just depends on the size
of the selection.
Modifying an existing mesh instead of generating a new one was a bit
of a toss-up, but has a few potential benefits:
- Avoids manually copying over attribute data for original elements.
- Avoids some overhead of creating a new mesh.
- Can potentially take advantage of future ammortized mesh growth.
This could be changed easily if it turns out to be the wrong choice.
Differential Revision: https://developer.blender.org/D13709
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This node can scale individual edges and faces. When multiple selected
faces/edges share the same vertices, they are scaled together.
The center and scaling factor is averaged in this case.
For some examples see D13757.
Differential Revision: https://developer.blender.org/D13757
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This adds a new curve primitive to generate arcs.
Radius mode (default): Generates a fixed radius arc on XY plane
with controls for Angle, Sweep and Invert.
Points mode: Generates a three point curve arc from Start to End
via Middle with an Angle Offset and option to invert the arc.
There are also outputs for arc center, radius and normal direction
relative to the Z-axis.
This patch is based on previous patches
D11713 and D13100 from @guitargeek. Thank you.
Reviewed By: HooglyBoogly
Differential Revision: https://developer.blender.org/D13640
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This node allows accessing data of other elements in the context geometry.
It is similar to the Transfer Attribute node in Index mode. The main difference
is that this node does not require a geometry input, because the context
is used.
The node can e.g. be used to generalize what the Edge Vertices node is doing.
Instead of only being able to get the position of the vertices of an edge,
any field/attribute can be accessed on the vertices.
Differential Revision: https://developer.blender.org/D13825
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Includes unwanted changes
This reverts commit 46e049d0ce2bce2f53ddc41a0dbbea2969d00a5d.
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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 @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
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Reverted because the commit removes a lot of commits.
This reverts commit a2c1c368af48644fa8995ecbe7138cc0d7900c30.
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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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The new triangulation mode for quads is the opposite of the current default
shortest diagonal mode. It is optimal for cloth simulations using quad meshes.
Differential Revision: http://developer.blender.org/D13777
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Compositor node to convert between color spaces.
Conversion is skipped when converting between the same color spaces or to or from data spaces.
Implementation done for tiled and full frame compositor.
Reviewed By: Blendify, jbakker
Differential Revision: https://developer.blender.org/D12481
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This flag is only used a few small cases, so instead
of setting the flag for every node only set the
required flag for the nodes that require it.
Mostly the flag is used to set `ntype.flag = NODE_PREVIEW`
For nodes that should have previews by default which
is only some compositor nodes and some texture nodes.
The frame node also sets the `NODE_BACKGROUND` flag.
All other nodes were setting a flag of 0 which has no purpose.
Reviewed By: JacquesLucke
Differential Revision: https://developer.blender.org/D13699
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This just moves the relations update to a lower level function that is used
by other functions. Eventually, the special case for this node should be
generalized.
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This function node creates a running total of a given Vector, Float, or
Int field.
Inputs:
- Value: The field to be accumulated
- Group Index: The values of this input are used to aggregate the input
into separate 'bins', creating multiple accumulations.
Outputs:
- Leading and Trailing: Returns the running totals starting
at either the first value of each accumulations or 0 respectively.
- Total: Returns the total accumulation at all positions of the field.
There's currently plenty of duplicate work happening when multiple outputs
are used that could be optimized by a future refactor to field inputs.
Differential Revision: https://developer.blender.org/D12743
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