Blender Git Commits

Geometry Nodes: use attribute api in point distribute node

Geometry Nodes: initial generic attribute access API

I will have to do a couple more iterations on this api in the upcoming weeks,
but for now it should be good enough.

The API adds an indirection for attribute access. That has the following benefits:
* Most code does not have to care about how an attribute is stored internally.
This is mainly necessary, because we have to deal with "legacy" attributes
such as vertex weights and attributes that are embedded into other structs
such as vertex positions.
* When reading from an attribute, we generally don't care what domain the
attribute is stored on. So we want to abstract away the interpolation that
that adapts attributes from one domain to another domain (this is not
actually implemented yet).

Accessing attributes through this indirection does have a performance penalty.
In later iterations of this API I want to reduce this penalty and extend the API
so that performance critical code does not have to go through the indirection
for every attribute access.

Other possible improvements for later iterations include:
* Actually implement interpolation between domains.
* Don't use inheritance for the different attribute types. A single class for read
access and one for write access might be enough, because we know all the ways
in which attributes are stored internally. We don't want more different internal
structures in the future. On the contrary, ideally we can consolidate the different
storage formats in the future to reduce the need for this indirection.
* Remove the need for heap allocations when creating attribute accessors.

Functions: add float2 cpp type

Merge remote-tracking branch 'origin/master' into geometry-nodes

Cleanup: Remove most of "#ifdef WITH_GEOMETRY_NODES"

The ones around the simulation datablock are still there, since they are not
needed for the features planned for master yet.

Cleanup: Remove all of "#ifdef WITH_POINT_CLOUD"

Since Point Cloud was removed from experimental this is no longer needed.

Geometry Nodes: Unify icons -> use ICON_NODETREE for everything

Until there is a icon made specially for this, the nodetree icon is up
for grabs. Using it in the nodegroup + modifier + editor helps the users
to make a connection on where to edit those modifiers.

Remove Point Cloud object from experimental

The point cloud object is the only one that will support instancing at
first. So we can expose it as a regular object.

It is limited since it has no edit mode. But this is not different than
the volume object.

Remove Geometry Nodes Editor from experimental

As part of preparing this work for master, with an initial subset of
working functionalities the Geometry Nodes Editor can be exposed for
everyone.

(it also helps people that are testing the branch)

use data type and domain enum in random attribute node

initial attribute creation

initial WriteAttribute

initial random attribute node

Geometry Nodes: Update boilerplate code for attributes

cleanup

Merge branch 'geometry-nodes' into geometry-nodes-attribute-nodes

Transform: New feature to set a custom 'Snap With'

Ref T66484

Basically the idea is to use a modal keymap to change the current Base Point
defined by `Snap With` by one that can be chosen through snapping.

{F9170047}

I prefer to avoid using any of the modifier buttons (Shift, Alt, Ctrl) as
they can be used in the future to allow navigation during transform operations.

So the shortcut chosen in this patch is the {key B}.

Note:
This feature is not enabled if the scene snap option is Incremental or grid.

Maniphest Tasks: T66484

Differential Revision: https://developer.blender.org/D9415

# Conflicts:
# source/tools

Enable modes according to the number of times the button is pressed

Remove multiple modes (always return the object to the initial position)

Fix: Scale operation and statusbar, Enable multi snappoints and snap inversion