The node tree evaluator now calls a callback for every used socket with
its corresponding value(s). Right now the callback does nothing.
However, we can use it to collect attribute name hints, socket values
for debugging or data that will be displayed in the spreadsheet.
The main difficulty here was to also call the callback for sockets in
nodes that are not directly executed (such as group nodes, muted
nodes and reroutes).
No functional changes are expected.
For other "Attribute Name" fields we usually give a more specific name
that relates to what the attribute is actually used for, like "Mask" in
the point separate node. This is a similar situation, and would also
be consistent with the naming planned in D10506.
This is an implementation of Enhanced Subpixel Morphological Antialiasing (SMAA)
The algorithm was proposed by:
Jorge Jimenez, Jose I. Echevarria, Tiago Sousa, Diego Gutierrez
This node provides only SMAA 1x mode, so the operation will be done with no spatial
multisampling nor temporal supersampling. See Patch for comparisons.
The existing AA operation seems to be used only for binary images by some other nodes.
Using SMAA for binary images needs no important parameter such as "threshold", so we
perhaps can switch the operation to SMAA, though that changes existing behavior.
Notes:
1. The program code assumes the screen coordinates are DirectX style that the
vertical direction is upside-down, so "top" and "bottom" actually represent bottom
and top, respectively.
Thanks for Habib Gahbiche (zazizizou) to polish and finalize this patch.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D2411
Although "Grid" may not be techincally correct since a grid could be 3D,
it was decided to rename the "Plane" primtive to "Grid". The primitive
node allows subdivisions, so the name is more consistent with the
operator in the 3D view.
Ref T86819
This commit includes a file subversion bump for the versioning.
Change `float to boolean` and `int32 to boolean` to return false for zero and negative values.
This aligns with how artists would expect these values to work. This is in contrast to what a coder would expect. It was determined on blender.chat that this was a better default. This means that a negative float value would give a boolean false.
Change `Color4f to boolean` to return false for zero and negative grayscale values.
Likewise, for color to boolean, to account for negative value colors, the grayscale value would be used for determining if a colour was false or not.
See {T86454}
Reviewed By: JacquesLucke
Differential Revision: https://developer.blender.org/D10685
This patch adds support for the remaining operations of the Vector Math
node within Geometry Nodes. While the operations are already available
in the UI, they hadn't been implemented, yet. With this patch the node
uses the implementation that was added for the Attribute Vector Math
node - similar to how it's handled with the Math node and Attribute
Math node.
Differential Revision: https://developer.blender.org/D10650
This adds a Clamp node for Geometry Nodes Attributes.
Supports both Min-Max and Range clamp modes.
Float, Vector, Color and Int data types supported.
Reviewed By: HooglyBoogly, simonthommes
Differential Revision: https://developer.blender.org/D10526
This commit adds a node with a "Map Range" operation for attributes
just like the non-attribute version of the node. However, unlike the
regular version of the node, it also supports operations on vectors.
Differential Revision: https://developer.blender.org/D10344
The recent commit that changed the size (rB83df3545246aada) left out
a few changed. This patch also adjusts the positioning and UV scale of
the generated plane accordingly.
Differential Revision: https://developer.blender.org/D10822
This will allow retrieving the instance groups from multiple geometry
sets and avoiding needing vectors of vectors to store the results.
This is useful when retrieving instances from a multi-input socket
of geometries.
This patch renames two domains:
* `Polygon` -> `Face`
* `Corner` -> `Face Corner`
For the change from `polygon` to `face` I did a "deep rename" where I updated
all (most?) cases where we refere to the attribute domain in code as well.
The change from `corner` to `face corner` is only a ui change. I did not see
a real need to update all code the code for that. It does not seem to improve
the code, more on the contrary.
Ref T86818.
Differential Revision: https://developer.blender.org/D10803
Without `calc_object_remap` turned off in the conversion to and from
BMesh for the primitive nodes, the `CD_ORIGINDEX` custom data layer
has incorrect values. By using a different function to do the conversions,
we can avoid this problem.
Thanks to Jacques for finding the fix here.
Differential Revision: https://developer.blender.org/D10805
Cycles, Eevee, OSL, Geo, Attribute
Based on outdated refract patch D6619 by @cubic_sloth
`refract` and `faceforward` are standard functions in GLSL, OSL and Godot shader languages.
Adding these functions provides Blender shader artists access to these standard functions.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D10622
Following some discussion among the geometry nodes team, it was decided
that keeping the primitive nodes simpler and requiring a separate
transform node to move the generated geometry from the origin would
be better.
- It's more consistent with the current general idea of "building
block nodes"
- It makes more sense for the future when it will be possible to
use instancing to control the transforms.
- It reduces UI clutter when the controls are not necessary.
Previously, different Random Float nodes would generate different values
depending on where they are in the node group hierarchy. This can be useful,
but should definitely not be the default behavior, because it is very inconsistent
with other nodes.
Previously, the signature of a `MultiFunction` was always embedded into the function.
There are two issues with that. First, `MFSignature` is relatively large, because it contains
multiple strings and vectors. Secondly, constructing it can add overhead that should not
be necessary, because often the same signature can be reused.
The solution is to only keep a pointer to a signature in `MultiFunction` that is set during
construction. Child classes are responsible for making sure that the signature lives
long enough. In most cases, the signature is either embedded into the child class or
it is allocated statically (and is only created once).
When a function is executed for many elements (e.g. per point) it is often the case
that some parameters are different for every element and other parameters are
the same (there are some more less common cases). To simplify writing such
functions one can use a "virtual array". This is a data structure that has a value
for every index, but might not be stored as an actual array internally. Instead, it
might be just a single value or is computed on the fly. There are various tradeoffs
involved when using this data structure which are mentioned in `BLI_virtual_array.hh`.
It is called "virtual", because it uses inheritance and virtual methods.
Furthermore, there is a new virtual vector array data structure, which is an array
of vectors. Both these types have corresponding generic variants, which can be used
when the data type is not known at compile time. This is typically the case when
building a somewhat generic execution system. The function system used these virtual
data structures before, but now they are more versatile.
I've done this refactor in preparation for the attribute processor and other features of
geometry nodes. I moved the typed virtual arrays to blenlib, so that they can be used
independent of the function system.
One open question for me is whether all the generic data structures (and `CPPType`)
should be moved to blenlib as well. They are well isolated and don't really contain
any business logic. That can be done later if necessary.
This visualization of nested node groups makes it easier to debug
some issues. Muted nodes, muted links, reroute nodes and unavailable
sockets are removed from the visualization to keep it clean.
Nested node groups are visualized using colored clusters.
The point separate node was failing in situations where one of the
outputs was empty. In addition, the code was not structured very well.
This new implementation stores less temporary information, is more
geometry component type agnostic, and is more self-descriptive.
It also solves the problems mentioned above.
Fixes T86573
Differential Revision: https://developer.blender.org/D10764
This is generally what people expect when generating a cone. Note that
this translation currently happens after the rotation, but since the rotation
will likely be removed in the future, that won't be a problem for long.
The size in the transform matrices was extra, since it is also
passed as an argument to the BMesh operators.
Differential Revision: https://developer.blender.org/D10763
