Issue was with setting of frame to load from an image sequence,
synchronization was not done properly at some point, leading to
generation of an invalid final filepath to be read.
Note this only changes cases where the variable was declared inside
the for loop. To handle it outside as well is a different challenge.
Differential Revision: https://developer.blender.org/D7320
Follow up of b2ee1770d4 and 10c2254d41, part of T74432.
Now the area and region naming conventions should be less confusing.
Mostly a careful batch rename but had to do few smaller fixes.
Also ran clang-format on affected files.
Part of the fix was to get gputexture to use an array to accomodate each
eye. This takes care of viewports showing individual Left or Right
views.
For the combined view the fix was in overlay_image.c:camera_background_images_stereo_setup.
Note 1: Referece images are still not supporting stereo.
Note 2: For painting, and getting image bindcode I'm hardcording a
single-view experience.
Note 3: Without D6922 stereo is too broken to even test this patch.
With D6922 + this patch the fullscreen modes work (anaglyph/interlace
not yet).
Differential Revision: D7143
Instead of using anonymous booleans flags, also allows to keep the same
behavior in all cases, without needing special handling from calling
code for our beloved oddballs object proxies...
If the current frame was not in range, the ImageTile's 'ok' was stuck at
0. Similar to the ImageUser being reset to 'ok' in
BKE_image_user_frame_calc, we now do for ImageTiles as well.
note: the crasher part of T74225 was fixed in rB5c490d437743.
Maniphest Tasks: T74225
Differential Revision: https://developer.blender.org/D6939
This would happen if a tile is found on disk, painting would actually
request that tile (because corresponding uvs were in that range), but
that tile was not added in blenders list of tiles in that Image.
Need to also check tile in `image_quick_test` (regardless of iuser
having passed).
thx @lukasstockner97 for additional input!
Maniphest Tasks: T73110
Differential Revision: https://developer.blender.org/D6578
Based on @fclem's suggestion in D6421, this commit implements support for
storing all tiles of a UDIM texture in a single 2D array texture on the GPU.
Previously, Eevee was binding one OpenGL texture per tile, quickly running
into hardware limits with nontrivial UDIM texture sets.
Workbench meanwhile had no UDIM support at all, as reusing the per-tile
approach would require splitting the mesh by tile as well as texture.
With this commit, both Workbench as well as Eevee now support huge numbers
of tiles, with the eventual limits being GPU memory and ultimately
GL_MAX_ARRAY_TEXTURE_LAYERS, which tends to be in the 1000s on modern GPUs.
Initially my plan was to have one array texture per unique size, but managing
the different textures and keeping everything consistent ended up being way
too complex.
Therefore, we now use a simpler version that allocates a texture that
is large enough to fit the largest tile and then packs all tiles into as many
layers as necessary.
As a result, each UDIM texture only binds two textures (one for the actual
images, one for metadata) regardless of how many tiles are used.
Note that this rolls back per-tile GPUTextures, meaning that we again have
per-Image GPUTextures like we did before the original UDIM commit,
but now with four instead of two types.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D6456
This adds UDIM support to e.g. the Displacement modifier.
The implementation is straightforward: If the image is tiled, lookup the
tile based on UVs and shift the UVs into the tile's coordinates.
This patch contains the work that I did during my week at the Code Quest - adding support for tiled images to Blender.
With this patch, images now contain a list of tiles. By default, this just contains one tile, but if the source type is set to Tiled, the user can add additional tiles. When acquiring an ImBuf, the tile to be loaded is specified in the ImageUser.
Therefore, code that is not yet aware of tiles will just access the default tile as usual.
The filenames of the additional tiles are derived from the original filename according to the UDIM naming scheme - the filename contains an index that is calculated as (1001 + 10*<y coordinate of the tile> + <x coordinate of the tile>), where the x coordinate never goes above 9.
Internally, the various tiles are stored in a cache just like sequences. When acquired for the first time, the code will try to load the corresponding file from disk. Alternatively, a new operator can be used to initialize the tile similar to the New Image operator.
The following features are supported so far:
- Automatic detection and loading of all tiles when opening the first tile (1001)
- Saving all tiles
- Adding and removing tiles
- Filling tiles with generated images
- Drawing all tiles in the Image Editor
- Viewing a tiled grid even if no image is selected
- Rendering tiled images in Eevee
- Rendering tiled images in Cycles (in SVM mode)
- Automatically skipping loading of unused tiles in Cycles
- 2D texture painting (also across tiles)
- 3D texture painting (also across tiles, only limitation: individual faces can not cross tile borders)
- Assigning custom labels to individual tiles (drawn in the Image Editor instead of the ID)
- Different resolutions between tiles
There still are some missing features that will be added later (see T72390):
- Workbench engine support
- Packing/Unpacking support
- Baking support
- Cycles OSL support
- many other Blender features that rely on images
Thanks to Brecht for the review and to all who tested the intermediate versions!
Differential Revision: https://developer.blender.org/D3509
Usage of spinlock during heavy IO gave reduced performance
see D6267 for details.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D6267
This also replaces the Use Alpha setting. We now have these alpha modes:
* Straight: store RGB and alpha channels separately with alpha acting as a
mask, also known as unassociated alpha.
* Premultiplied: transparent RGB pixels are multiplied by the alpha channel.
The natural format for renders.
* Channel Packed: different images are packed in the RGB and alpha channels,
and they should not influence each other. Channel packing is commonly used
by game engines to save memory.
* None: ignore alpha channel from the file and make image fully opaque.
Cycles OSL does not correctly support Channel Packed and None yet, we are
missing fine control over the OpenImageIO texture cache to do that.
Fixes T53672
The basic idea is that such new images will be packed into the .blend file
when saving all modified images from the quit dialog. To make this workflow
nicer a number of changes were made to how this type of packed image is
handled.
* "Save Modified Images" now packs generated images into the .blend file.
* "Save As" for packed images now automatically unpacks the image, so that
it's easy to save automatically packed images. "Save Copy" keeps it packed.
* "Save" for packed images now re-saves the image into the .blend file, so
that it's effectively the equivalent of "Save" for non-packed images.
* Empty image filepaths are no longer remapped when saving the .blend file.
Previously it would become e.g. "//../../" which makes no sense for generated
images with no filepath yet.
* Hide unpack button and filepath for such packed images with no filepath.
Unpacking does not work in a predictable way without a filepath, better
to just "Save As".
This way float and multilayer images can now be packed without data loss. This
removes the as_png option and always uses the appropriate file format depending
on the image contents.
