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Add blank lines after file references to avoid them being interpreted as
doc-strings the following declarations.
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Use a shorter/simpler license convention, stops the header taking so
much space.
Follow the SPDX license specification: https://spdx.org/licenses
- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile
While most of the source tree has been included
- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
use different header conventions.
doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.
See P2788 for the script that automated these edits.
Reviewed By: brecht, mont29, sergey
Ref D14069
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When viewing backdrop on top of the node grid, the grid would be
rendered black when the mode wasn't set to RGBA. This fix fixes this by
reverting the previous fix of drawing the backdrop and implement a
different one that recomputes the UV coordinates on the screen edges.
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Since splitting the depth and the color shader in the image engine the
backdrop wasn't visible anymore. The reson is that the min max uv
coordinates were never working for the node editor backdrop that uses
its own coordinate space.
This partial fix will ignore the depth test when drawing the color part
of the backdrop. This will still have artifacts that are visible when
showing other options as RGBA.
Proper fix would be to calculate the the uv vbo in uv space and not in
image space.
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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.
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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.
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tile images aren't a special case anymore for the image engine.
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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
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Adding virtual constructors to base classes.
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Image engine is used to draw an image into a space. The current
structure wasn't clear and couldn't be easilly extended. This refactor
spliced the image draw engine into 3 main components.
- Space accessors: contains an interface to communicate with space data
(Image editor, UV Editor, Node Editor) in a common way. This reduced
the branching in the code base.
- DrawingMode: contains an interface to the used tactic to draw an image
inside the space framebuffer. Currently only one mode is implemented;
in the future there could be a separate drawing mode for huge images.
- ImageEngine: the core that connects the draw manager with the space
data and drawing mode.
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Added namespace blender::draw::image_engine. Code is still C-a-like.
Only changed the obvious code style to CPP (structs, nullptr, casts).
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