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Removes a warning and tidy the API.
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This is a new implementation of the draw manager using modern
rendering practices and GPU driven culling.
This only ports features that are not considered deprecated or to be
removed.
The old DRW API is kept working along side this new one, and does not
interfeer with it. However this needed some more hacking inside the
draw_view_lib.glsl. At least the create info are well separated.
The reviewer might start by looking at `draw_pass_test.cc` to see the
API in usage.
Important files are `draw_pass.hh`, `draw_command.hh`,
`draw_command_shared.hh`.
In a nutshell (for a developper used to old DRW API):
- `DRWShadingGroups` are replaced by `Pass<T>::Sub`.
- Contrary to DRWShadingGroups, all commands recorded inside a pass or
sub-pass (even binds / push_constant / uniforms) will be executed in order.
- All memory is managed per object (except for Sub-Pass which are managed
by their parent pass) and not from draw manager pools. So passes "can"
potentially be recorded once and submitted multiple time (but this is
not really encouraged for now). The only implicit link is between resource
lifetime and `ResourceHandles`
- Sub passes can be any level deep.
- IMPORTANT: All state propagate from sub pass to subpass. There is no
state stack concept anymore. Ensure the correct render state is set before
drawing anything using `Pass::state_set()`.
- The drawcalls now needs a `ResourceHandle` instead of an `Object *`.
This is to remove any implicit dependency between `Pass` and `Manager`.
This was a huge problem in old implementation since the manager did not
know what to pull from the object. Now it is explicitly requested by the
engine.
- The pases need to be submitted to a `draw::Manager` instance which can
be retrieved using `DRW_manager_get()` (for now).
Internally:
- All object data are stored in contiguous storage buffers. Removing a lot
of complexity in the pass submission.
- Draw calls are sorted and visibility tested on GPU. Making more modern
culling and better instancing usage possible in the future.
- Unit Tests have been added for regression testing and avoid most API
breakage.
- `draw::View` now contains culling data for all objects in the scene
allowing caching for multiple views.
- Bounding box and sphere final setup is moved to GPU.
- Some global resources locations have been hardcoded to reduce complexity.
What is missing:
- ~~Workaround for lack of gl_BaseInstanceARB.~~ Done
- ~~Object Uniform Attributes.~~ Done (Not in this patch)
- Workaround for hardware supporting a maximum of 8 SSBO.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D15817
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This is a complete rewrite of the draw debug drawing module in C++.
It uses `GPUStorageBuf` to store the data to be drawn and use indirect
drawing. This makes it easier to do a mirror API for GPU shaders.
The C++ API class is exposed through `draw_debug.hh` and should be used
when possible in new code.
However, the debug drawing will not work for platform not yet supporting
`GPUStorageBuf`. Also keep in mind that this module must only be used
in debug build for performance and compatibility reasons.
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Replaces `DRW_shgroup_call_procedural_triangles_indirect`.
This makes the indirect drawing more flexible.
Not all primitive types are supported but it is just a matter of adding
them.
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Just like the name suggest, this adds a way to draw a series of proceduraly
positioned triangles using and indirect buffer.
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This adds support to render Curves attributes in EEVEE.
Each attribute is stored in a texture derived from a VBO. As the
shading group needs the textures to be valid upon creation, the
attributes are created and setup during its very creation, instead
of doing it lazily via create_requested which we cannot rely on
anyway as contrary to the mesh batch, we do cannot really tell if
attributes need to be updated or else via some `DRW_batch_requested`.
Since point attributes need refinement, and since attributes are all
cast to vec4/float4 to account for differences in type conversions
between Blender and OpenGL, the refinement shader for points is
used as is. The point attributes are stored for each subdivision level
in CurvesEvalFinalCache. Each subdivision level also keeps track of the
attributes already in use so they are properly updated when needed.
Some basic garbage collection was added similar to what is done
for meshes: if the attributes used over time have been different
from the currently used attributes for too long, then the buffers
are freed, ensuring that stale attributesare removed.
This adds `CurvesInfos` to the shader creation info, which stores
the scope in which the attributes are defined. Scopes are stored
as booleans, in an array indexed by attribute loading order which
is also the order in which the attributes were added to the material.
A mapping is necessary between the indices used for the scoping, and
the ones used in the Curves cache, as this may contain stale
attributes which have not been garbage collected yet.
Common utilities with the mesh code for handling requested
attributes were moved to a separate file.
Differential Revision: https://developer.blender.org/D14916
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This is often needed and somehow cumbersome to set up. This will allow some
code simplifications.
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Use num & count (for counters), in drawing code, see: T85728.
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In the current code we do not render any curves if they have not been
converted to meshes. This change makes the custom bone drawing try to
render mesh objects first and then falls back to curve objects if there
is no mesh data available.
Reviewed By: Clement
Differential Revision: http://developer.blender.org/D14804
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This is to make the codegen and shading nodes object type agnostic. This
is essential for flexibility of the engine to use the nodetree as it see
fits.
The essential volume attributes struct properties are moved to the
`GPUMaterialAttribute` which see its final input name set on creation.
The binding process is centralized into `draw_volume.cc` to avoid
duplicating the code between multiple engines. It mimics the hair attributes
process.
Volume object grid transforms and other per object uniforms are packed into
one UBO per object. The grid transform is now based on object which simplify
the matrix preparations.
This also gets rid of the double transforms and use object info orco factors
for volume objects.
Tagging @brecht because he did the initial implementation of Volume Grids.
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This code was duplicated in multiple engines. Now it is the draw manager
responsability to manage the throwaway fluid textures.
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# Conflicts:
# source/blender/draw/intern/draw_manager.h
# source/blender/draw/intern/draw_manager_exec.c
# source/blender/draw/intern/draw_shader_shared.h
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This just expose the GPU API through DRW.
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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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- Compute ref let the size of dispatch be modified just before drawing.
- Barrier call makes it possible to chain multiple compute passes in one pass.
- DRW_shgroup_vertex_buffer_ref is the analog of DRW_shgroup_uniform_block_ref.
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The problem is that drw_batch_cache_generate_requested_delayed
is called on the object, which uses the original object data type to
choose which data type to get info for. So for curves and text it uses
the incorrect type (not the evaluated mesh like we hardcoded in the
armature overlay code).
To fix this I hardcoded the "delayed" generation to only use the
evaluated mesh. Luckily it wasn't use elsewhere besides this
armature overlay system. That seems like the simplest fix for
3.0. A proper solution should rewrite this whole area anyway.
Differential Revision: https://developer.blender.org/D13439
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This is a necessary step for EEVEE's new arch. This moves more data
to the draw manager. This makes it easier to have the render or draw
engines manage their own data.
This makes more sense and cleans-up what the GPUViewport holds
Also rewrites the Texture pool manager to be in C++.
This also move the DefaultFramebuffer/TextureList and the engine related
data to a new `DRWViewData` struct. This struct manages the per view
(as in stereo view) engine data.
There is a bit of cleanup in the way the draw manager is setup.
We now use a temporary DRWData instead of creating a dummy viewport.
Development: fclem, jbakker
Differential Revision: https://developer.blender.org/D11966
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This patch allows dropping material assets from material slot under the mouse
cursor. Before this change the material slot had to be hand-picked from the
properties panel.
For consistency it is chosen to do this in any shading mode as the tooltip shows
what is exactly going to happen during release.
The feature also works for other object types than Meshes as it uses the drawn surface on the
GPU to detect the material slots. Performance of this patch has been tested with AMD GCN3.0
cards and are very responsive.
Reviewed By: fclem, Severin
Differential Revision: https://developer.blender.org/D12190
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Previously, the Point Instance node in geometry nodes could only instance
existing objects or collections. The reason was that large parts of Blender
worked under the assumption that objects are the main unit of instancing.
Now we also want to instance geometry within an object, so a slightly larger
refactor was necessary.
This should not affect files that do not use the new kind of instances.
The main change is a redefinition of what "instanced data" is. Now, an
instances is a cow-object + object-data (the geometry). This can be nicely
seen in `struct DupliObject`. This allows the same object to generate
multiple geometries of different types which can be instanced individually.
A nice side effect of this refactor is that having multiple geometry components
is not a special case in the depsgraph object iterator anymore, because those
components are integrated with the `DupliObject` system.
Unfortunately, different systems that work with instances in Blender (e.g.
render engines and exporters) often work under the assumption that objects are
the main unit of instancing. So those have to be updated as well to be able to
handle the new instances. This patch updates Cycles, EEVEE and other viewport
engines. Exporters have not been updated yet. Some minimal (not master-ready)
changes to update the obj and alembic exporters can be found in P2336 and P2335.
Different file formats may want to handle these new instances in different ways.
For users, the only thing that changed is that the Point Instance node now
has a geometry mode.
This also fixes T88454.
Differential Revision: https://developer.blender.org/D11841
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The do_color_management option was set, but never read.
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Also use doxy style function reference `#` prefix chars when
referencing identifiers.
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This patch will use compute shaders to create the VBO for hair.
The previous implementation uses transform feedback.
Timings before: between 0.000069s and 0.000362s.
Timings after: between 0.000032s and 0.000092s.
Speedup isn't noticeable by end-users. The patch is used to test
the new compute shader pipeline and integrate it with the draw
manager. Allowing EEVEE, Workbench and other draw engines to
use compute shaders with the introduction of `DRW_shgroup_call_compute`
and `DRW_shgroup_vertex_buffer`.
Future improvements are possible by generating the index buffer
of hair directly on the GPU.
NOTE: that compute shaders aren't supported by Apple and still use
the transform feedback workaround.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D11057
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This reverts commit 8f9599d17e80254928d2d72081a4c7e0dee64038.
Mac seems to have an error with this change.
```
ERROR: /Users/blender/git/blender-vdev/blender.git/source/blender/draw/intern/draw_hair.c:115:44: error: use of undeclared identifier 'shader_src'
ERROR: /Users/blender/git/blender-vdev/blender.git/source/blender/draw/intern/draw_hair.c:123:13: error: use of undeclared identifier 'shader_src'
ERROR: make[2]: *** [source/blender/draw/CMakeFiles/bf_draw.dir/intern/draw_hair.c.o] Error 1
ERROR: make[1]: *** [source/blender/draw/CMakeFiles/bf_draw.dir/all] Error 2
ERROR: make: *** [all] Error 2
```
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This patch will use compute shaders to create the VBO for hair.
The previous implementation uses tranform feedback.
Timings master (transform feedback with GPU_USAGE_STATIC between 0.000069s and 0.000362s
Timings transform feedback with GPU_USAGE_DEVICE_ONLY. between 0.000057s and 0.000122s
Timings compute shader between 0.000032 and 0.000092s
Future improvements:
* Generate hair Index buffer using compute shaders: currently done single threaded on CPU, easy to add as compute shader.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D11057
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Also use doxygen comments for sculpt functions.
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This patch allows the user to type a property name into the
Attribute node, which will then output the value of the property
for each individual object, allowing to e.g. customize shaders
by object without duplicating the shader.
In order to make supporting this easier for Eevee, it is necessary
to explicitly choose whether the attribute is varying or uniform
via a dropdown option of the Attribute node. The dropdown also
allows choosing whether instancing should be taken into account.
The Cycles design treats all attributes as one common namespace,
so the Blender interface converts the enum to a name prefix that
can't be entered using keyboard.
In Eevee, the attributes are provided to the shader via a UBO indexed
with resource_id, similar to the existing Object Info data. Unlike it,
however, it is necessary to maintain a separate buffer for every
requested combination of attributes.
This is done using a hash table with the attribute set as the key,
as it is expected that technically different but similar materials
may use the same set of attributes. In addition, in order to minimize
wasted memory, a sparse UBO pool is implemented, so that chunks that
don't contain any data don't have to be allocated.
The back-end Cycles code is already refactored and committed by Brecht.
Differential Revision: https://developer.blender.org/D2057
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Corrects incorrect usages of the word 'loose' when 'lose' was required.
Differential Revision: https://developer.blender.org/D9243
Reviewed by Campbell Barton
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Following the most widely used convention for including todo's in
the code, that is: `TODO(name):`, `FIXME(name)` ... etc.
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This wraps the functionality used to speedup EEVEE volumetrics.
This touches the rendering code of EEVEE as it should fix a mis-usage of
the GL barrier. The barrier changed type and location, removing an
unused barrier.
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This follows the GPU module naming of other buffers.
We pass name to distinguish each GPUUniformBuf in debug mode.
Also remove DRW_uniform_buffer interface.
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This replaces header include guards with `#pragma once`.
A couple of include guards are not removed yet (e.g. `__RNA_TYPES_H__`),
because they are used in other places.
This patch has been generated by P1561 followed by `make format`.
Differential Revision: https://developer.blender.org/D8466
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This will remove some code duplication between draw engines.
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Clang Tidy reported a couple of false positives. I disabled
those `NOLINTNEXTLINE`.
Differential Revision: https://developer.blender.org/D8199
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The memory leak is noticeable when using custom bone shapes. When using custom
bone shapes objects could be extracted twice. Where the second extraction can
overwrite data created by the first extraction what causes the memory leak.
Options that have been checked:
1. Use two task graphs phases. One for normal extraction (DST.task_graph) and
the other one will handle extractions that require blocking threads.
2. Keep a list of all objects that needs extraction and only start extraction
when all objects have been populated.
The second would slow performance as the extraction only happens when all
objects have been populated. In the future we might want to go for the second
option when we have the capability to render multiple viewports with a single
populate. As this design isn't clear this patch will implement the first
option.
Reviewed By: Clément Foucault
Differential Revision: https://developer.blender.org/D7969
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This has been replace by manual model+viewproj transform inside the shader.
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