It's easier to keep track of state in these algorithms if it's stored in
a central place like a set. Plus, using flags requires clearing them
beforehand. For the selected linked operators, using the topology
cache means we don't have to iterate over all links.
Before 58c650a44c, the nodes span was rebuilt on every redraw. Now
that it's only rebuilt as necessary, we need to tag it dirty when nodes
are reordered. Relying on the order of the nodes at all isn't ideal, but
it's fairly fundamental in many areas at the moment.
The only real difference between `GPU_SHADER_2D_UNIFORM_COLOR` and
`GPU_SHADER_3D_UNIFORM_COLOR` is that in the vertex shader the 2D
version uses `vec4(pos, 0.0, 1.0)` and the 3D version uses
`vec4(pos, 1.0)`.
But VBOs with 2D attributes work perfectly in shaders that use 3D
attributes. Components not specified are filled with components from
`vec4(0.0, 0.0, 0.0, 1.0)`.
So there is no real benefit to having two different shader versions.
This will simplify porting shaders to python as it will not be
necessary to use a 3D and a 2D version of the shaders.
In python the new name for '2D_UNIFORM_COLOR'' and '3D_UNIFORM_COLOR'
is 'UNIFORM_COLOR', but the old names still work for backward
compatibility.
Differential Revision: https://developer.blender.org/D15836
Add a dedicated `owner_id` pointer to ID types that can be embedded
(Collections and NodeTrees), and modify slightly come code to make
handling those more safe and consistent.
This implements first part of T69169.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D15838
The multi-socket input sorting was used for two purposes: moving links
to the proper positions when dragging a new link, and resetting the
multi-input indices on the links when removing a link. They are now
separated into two functions, and the sorting when making a group
node that didn't accomplish anything is removed (in that case a
proper implementation would copy the indices from the original
exterior sockets).
The previous implementation iterated over all links multiple times
recursively. Instead, use the node tree topology cache, only iterate
over all links once, and use a stack to propagate the mute upsteam
and downstream.
Use C++ Map that supports the duplication natively. Use vectors instead
of linked lists, and adjust naming. Also remove combination of reroutes
for input sockets, which doesn't make sense since a reroute isn't
allowed to combine multiple input links into one output.
The location of a reroute node and its sockets should be the same,
only stored in different coordinate spaces. Because the node's location
is the ground truth, use that for finding whether the mouse is hovering.
Now dragged handles are handled separately, and the function returns a
statically sized array by value. The functions are also renamed to be
more consistent with curve naming elsewhere in Blender.
Several visual tweaks to node links to make them overall fit in
better with the look of the node editor:
- Change the link thickness with the zoom level to a certain degree.
- Remove the fuzziness of the node link and its shadow/outline.
- The link outline color can now be made transparent.
- Add circles at the end of dragged links when connecting to sockets.
- Improve the banding of the color interpolation along the link.
- Adjust the spacing of dashes along straight node links.
Reviewed By: Pablo Vazquez, Hans Goudey
Differential Revision: http://developer.blender.org/D15036
The purpose of `NodeTreeRef` was to speed up various queries on a read-only
`bNodeTree`. Not that we have runtime data in nodes and sockets, we can also
store the result of some queries there. This has some benefits:
* No need for a read-only separate node tree data structure which increased
complexity.
* Makes it easier to reuse cached queries in more parts of Blender that can
benefit from it.
A downside is that we loose some type safety that we got by having different
types for input and output sockets, as well as internal and non-internal links.
This patch also refactors `DerivedNodeTree` so that it does not use
`NodeTreeRef` anymore, but uses `bNodeTree` directly instead.
To provide a convenient API (that is also close to what `NodeTreeRef` has), a
new approach is implemented: `bNodeTree`, `bNode`, `bNodeSocket` and `bNodeLink`
now have C++ methods declared in `DNA_node_types.h` which are implemented in
`BKE_node_runtime.hh`. To make this work, `makesdna` now skips c++ sections when
parsing dna header files.
No user visible changes are expected.
Differential Revision: https://developer.blender.org/D15491
This patch is a response to T92588 and is implemented
as a Function/Shader node.
This node has support for Float, Vector and Color data types.
For Vector it supports uniform and non-uniform mixing.
For Color it now has the option to remove factor clamping.
It replaces the Mix RGB for Shader and Geometry node trees.
As discussed in T96219, this patch converts existing nodes
in .blend files. The old node is still available in the
Python API but hidden from the menus.
Reviewed By: HooglyBoogly, JacquesLucke, simonthommes, brecht
Maniphest Tasks: T92588
Differential Revision: https://developer.blender.org/D13749
If reroute node lies in side the frame node boundaries then set
frame node as the parent of reroute.
Differential Revision: https://developer.blender.org/D15739
If reroute node lies in side the frame node boundaries then set
frame node as the parent of reroute.
Differential Revision: https://developer.blender.org/D15739
Translate:
- new group socket names
- default names Input and Output
- on connecting a link from another node
- new geometry nodes input and output socket names
Reviewed By: mont29
Differential Revision: https://developer.blender.org/D15763
Mistake in own rBc76d7f7bde35.
Happened when no image was set in the Image Editor already (which is now
checked for).
Maniphest Tasks: T100590
Differential Revision: https://developer.blender.org/D15761
Since {rBb0cb0a785475}, changing the active texture in the Node Editor
would also change the current image in the Image Editor.
While this was an overall improvement, this was not desired when the
image currently looked at was a `Render Result` or a `Viewer Node`
(artists usually want to keep focus on these).
With this patch, syncing the active texture change from the Node Editor
to the Image Editor will now only happen if the Image Editor's current
image is not a Render Result or a Viewer Node.
NOTE: Syncing the active paint slot to the Image Editor still happens
(even if the Image Editor's current image is not a Render Result or a
Viewer Node), behavior was not changed since this is a much more
explicit action while texture painting and probably desired in that
case.
Maniphest Tasks: T99493
Differential Revision: https://developer.blender.org/D15749
Restore old hitbox for connecting links to sockets.
Commit rBd9d97db018d2 improved the node socket snapping when nodes
are close together by decreasing the tolerance around the cursor when
checking for nodes in front, that might occlude the socket.
In doing so it also reduced the hitbox of the node socket itself that
extended outside of the node.
This commit restores the old node socket hitbox while keeping the
improved behavior when nodes are close together with the following
changes:
1) When looking for the socket under the cursor, iterate through the
nodes front to back, which prioritizes node sockets in the foreground.
2) Instead of checking for another node underneath the cursor it checks
if the socket is actually occluded by another node.
The way the occlusion test for sockets is tweaked you can now connect to
sockets that are only partially occluded, which is a bit more forgiving
than previously.
Reviewed By: Hans Goudey
Differential Revision: http://developer.blender.org/D15731
Restore old hitbox for connecting links to sockets.
Commit rBd9d97db018d2 improved the node socket snapping when nodes
are close together by decreasing the tolerance around the cursor when
checking for nodes in front, that might occlude the socket.
In doing so it also reduced the hitbox of the node socket itself that
extended outside of the node.
This commit restores the old node socket hitbox while keeping the
improved behavior when nodes are close together with the following
changes:
1) When looking for the socket under the cursor, iterate through the
nodes front to back, which prioritizes node sockets in the foreground.
2) Instead of checking for another node underneath the cursor it checks
if the socket is actually occluded by another node.
The way the occlusion test for sockets is tweaked you can now connect to
sockets that are only partially occluded, which is a bit more forgiving
than previously.
Reviewed By: Hans Goudey
Differential Revision: http://developer.blender.org/D15731
