Previously, the new obj exporter was only exporting per-vertex normals for faces
marked as "smooth". But a face can have custom normals, as soon as the normals
data layer exists. This change makes it follow the behavior of USD & Collada
exporters and the old Python one, which also export per-vertex normals as soon
as the layer is there. (From Patch D13957.)
This fixes a regression from rBa0edee712a79239133ff840f911f6416d4c41855.
Issue being the curve map not being initialized in the GPU shader function.
Fixes T95221
For every spline, *all* of the normals and tangents in the output
were normalized. The node is multithreaded, so sometimes a thread
overwrote the normalized result from another thread.
Fixing this problem also made the node orders of magnitude
faster when there are many splines.
The GLSL defines used to make the uniform names unusable for local variable
is being interpreted as recursive on some implementation.
This avoids it by create a second macro avoiding the recursion.
Parameter was used to still be compatible with the previous drawing mode.
The previous mode isn't available anymore so the parameter can should be
removed.
After showing the alpha in the image editor the setting was not reset
so all images in the editor showed as being transparent.
This commit fixes this by resetting the flag before updating.
In Outliner, 'Make Override Hierarchy' on an indirectly linked data would
fail in case some items higher up in the hierarchy also needed to be
overridden was also indirectly linked.
Adding better support for drawing huge images in the image/uv editor. Also solved tearing artifacts.
The approach is that for each image/uv editor a screen space gpu texture is created that only contains
the visible pixels. When zooming or panning the gpu texture is rebuild.
Although the solution isn't memory intensive other parts of blender memory usage scales together with
the image size.
* Due to complexity we didn't implement partial updates when drawing images tiled (wrap repeat).
This could be added, but is complicated as a change in the source could mean many different
changes on the GPU texture. The work around for now is to tag all gpu textures to be dirty when
changes are detected.
Original plan was to have 4 screen space images to support panning without gpu texture creation.
For now we don't see the need to implement it as the solution is already fast. Especially when
GPU memory is shared with CPU ram.
Reviewed By: fclem
Maniphest Tasks: T92525, T92903
Differential Revision: https://developer.blender.org/D13424
This patch reimplements the image partial updates. Biggest design motivation for the redesign
is that currently GPUTextures must be owned by the image. This reduces flexibility and adds
complexity to a single component especially when we want to have different structures.
The new design is not limited to GPUTextures and can also be used by reducing overhead in image
operations like scaling. Or partial image updating in Cycles.
The usecase in hand is that we want to support virtual images in the image editor so we can
work with images that don't fit in a single GPUTexture.
Using `BKE_image_partial_update_mark_region` or `BKE_image_partial_update_mark_full_update`
a part of an image can be marked as dirty. These regions are stored per ImageTile (UDIM).
When a part of the code wants to receive partial changes it needs to construct a `PartialUpdateUser`
by calling `BKE_image_partial_update_create`. As long as this instance is kept alive the changes can
be received.
When a user wants to update its own data it will call `BKE_image_partial_update_collect_changes`
This will collect the changes since the last time the user called this function. When the partial changes
are available the partial change can be read by calling `BKE_image_partial_update_get_next_change`
It can happen that the introduced mechanism doesn't have the data anymore to construct the
changes since the last time a PartialUpdateUser requested it. In this case it will get a request
to perform a full update.
Maniphest Tasks: T92613
Differential Revision: https://developer.blender.org/D13238
Assert when "//" prefixed relative paths are passed to
BLI_path_cmp_normalized as this can't be expanded
and it's possible the paths come from different blend files.
Changes to recent addition: c85c52f2ce.
Having both BLI_paths_equal and BLI_path_cmp made it ambiguous
which should be used, as `BLI_paths_equal` wasn't the equivalent to
`BLI_path_cmp(..) == 0` as it is for string equals macro `STREQ(..)`.
It's also a more specialized function which is not used for path
comparison throughout Blender's internal path handling logic.
Instead rename this `BLI_path_cmp_normalized` and return the result of
`BLI_path_cmp` to make it clear paths are modified before comparison.
Also add comments about the conventions for Blender's path comparison
as well as a possible equivalent to Python's `os.path.samefile`
for checking if two paths point to the same location on the file-system.
The `OUTLINER_OT_item_activate` operator, although it detects when
something changes, always returns `OPERATOR_FINISHED` and thus induces
the creation of undo steps.
So return `OPERATOR_CANCELLED` when nothing changes.
Ref T94080
Reviewed By: Severin
Maniphest Tasks: T94080
Differential Revision: https://developer.blender.org/D13638
- Fix assert on size.
- Fix void * casting.
- Pass extent by values.
- Add swap function to avoid letting the types copyable.
- Add back the GPUTexture * operator on TextureFromPool.
Does two main changes:
* Handle regions in the order as visible on screen. Practically this
just means handling overlapping regions before non-overlapping ones.
* Don't handle any other regions after having found one containing the
mouse pointer.
Fixes: T94016, T91538, T91579, T71899 (and a whole bunch of duplicates)
Addresses: T92364
Differential Revision: https://developer.blender.org/D13539
Reviewed by: Campbell Barton
Asserts that such events actually always lead to a handler return value
that actually keeps the event passing.
Reviewed by Campbell Barton as part of
https://developer.blender.org/D13539.
Though the edge vertices aren't really meant to have an order,
it can make a difference in operations when there isn't any other
information to make decisions from, like etruding a circle of
loose edges (the situation in the report). This commit changes
the order of the vertices in the final cyclic edge to go in the
same direction as all of the other edges.
The vertex and face normals from the input mesh
were used to calculate the normals on the result,
which could cause a crash because the result should
be about twice as large.
Also remove an unnecessary dirty tag, since it is handled
automatically when creating a new mesh or in the case
of the mirror modifier, when calculating the new custom
face corner normals.
Swap "active" and "selected" in the tooltip if the `use_reverse_transfer`
option is activated.
Reviewed By: mont29
Maniphest Tasks: T85233
Differential Revision: https://developer.blender.org/D13499
Also fixes similar issues regarding some liboverride menu entries.
Reviewed By: mont29
Maniphest Tasks: T93766
Differential Revision: https://developer.blender.org/D13513
Add `USD Preview Surface From Nodes` export option, to convert a
Principled BSDF material node network to an approximate USD Preview
Surface shader representation. If this option is disabled, the original
material export behavior is maintained, where viewport setting are saved
to the Preview Surface shader.
Also added the following options for texture export.
- `Export Textures`: If converting Preview Surface, export textures
referenced by shader nodes to a 'textures' directory which is a
sibling of the USD file.
- `Overwrite Textures`: Allow overwriting existing texture files when
exporting textures (this option is off by default).
- `Relative Texture Paths`: Make texture asset paths relative to the
USD.
The entry point for the new functionality is
`create_usd_preview_surface_material()`, called from
`USDAbstractWriter::ensure_usd_material()`. The material conversion
currently handles a small subset of Blender shading nodes,
`BSDF_DIFFUSE`, `BSDF_PRINCIPLED`, `TEX_IMAGE` and `UVMAP`.
Texture export is handled by copying texture files from their original
location to a `textures` folder in the same directory as the USD.
In-memory and packed textures are saved directly to the textures folder.
This patch is based, in part, on code in Tangent Animation's USD
exporter branch.
Reviewed By: sybren, HooglyBoogly
Differential Revision: https://developer.blender.org/D13647
