The new adjacent faces method border lookup fails in some directions around
45 degrees
* Use 8 Dijkstra directions (also diagonally) to determine which polygon is the
closest to each pixel. Using only Manhattan distance lead to large parts of
the texture which were matched with the wrong polygon.
* Use neighbroing polygons for edge search. The Adjacent Faces algorithm needs
to determine the closest edge, in UV space, each pixel. To speed this up
first as map is built which finds the closest polygon for each pixel along
horizontal, vertical and diagonal steps. Because this can sometimes be one
edge off we first look in the polygon from the map, if that fails also
check the edges of its neighbouring UV polygons.
Differential Revision: https://developer.blender.org/D13935
For those EEVEE passes a bit of trickery with pointer offsets allows to
get the owning viewlayer, so path generation is not too bad.
Also moved ViewLayer path generation itself into a public utils, to
avoid duplicating code.
NOTE: Doing the same for AOV would be needed, but since pointer offsets
won't help us here to find the owning viewlayer, not sure how to do it
nicely yet (only solution I think is to loop over all AOVs of all
ViewLayer of the scene to find it :( ).
Reported by Beau Gerbrands (@Beaug), thanks.
Image buffer was visible but buffer wasn't available. In the case
the color only overlay of the render result was displayed the image
buffer was not check to be valid.
This patch adds a null pointer check to check in `IMB_alpha_affects_rgb`
to solve this crash.
Empty (UDIM) tiles where drawn with a transparency checkerboard. They
should be rendered with a border background. The cause is that the image
engine would select a single area that contained all tiles and draw them
as being part of an image.
The fix is to separate the color and depth part of the image engine
shader and only draw the depths of tiles that are enabled.
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.
Sometime throughout development some checks got lost during refactor.
This change makes it so that if OIDN is not supported on the current
CPU Cycles will report an error and stop rendering. This behavior is
similar to when an OptiX denoiser is requested and there is no OptiX
compatible device available.
The easiest way to verify this change is to force return false from
the `openimagedenoise_supported()`.
Fixes Cycles part of the T94127.
Differential Revision: https://developer.blender.org/D13944
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
