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MTLContext provides functionality for command encoding, binding management and graphics device management. MTLImmediate provides simple draw enablement with dynamically encoded data. These draws utilise temporary scratch buffer memory to provide minimal bandwidth overhead during workload submission.
This patch also contains empty placeholders for MTLBatch and MTLDrawList to enable testing of first pixels on-screen without failure.
The Metal API also requires access to the GHOST_Context to ensure the same pre-initialized Metal GPU device is used by the viewport. Given the explicit nature of Metal, explicit control is also needed over presentation, to ensure correct work scheduling and rendering pipeline state.
Authored by Apple: Michael Parkin-White
Ref T96261
(The diff is based on 043f59cb3b5835ba1a0bbf6f1cbad080b527f7f6)
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D15953
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This reverts commit 34051fcc12f388375697dcfc6da53e9909058fe1.
Although for normal use this doesn't make a difference. But when working with
huge scenes and volumetrics + NVIDIA it made a work-around not possible anymore.
For the heist production we added a fix on the render-farm (enable GPU workarounds).
{rB34051fcc12f388375697dcfc6da53e9909058fe1} made another work-around not
accessible anymore and it and was requested to revert this change.
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On NVIDIA volumetric resolve failed for large production scenes.
The result would remove most color from the final render. The cause
seems to be a faulty driver.
This change ported the fragment shader to a compute shader which
would select a different compiler branch and didn't show the error.
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This was caused by the compilation job being created suspended (to avoid
UI slowdown because of the material Preview Icons). The suspended job
wasn't passing the `WM_jobs_test` in `DRW_deferred_shader_remove` and
the material would still be in the compile queue with its status equal to
`GPU_MAT_QUEUED`. This would block the main thread in the waiting loop.
But since the job manager timer needs to execute in the main thread, the
compilation job was never being pushed out of its suspended state.
This lead to a complete lock situation.
The solution is to use `WM_jobs_customdata_from_type` which does exactly
what we need.
Also fixed a nullptr free.
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This uses refcounter instead of double thread mutexes. This should be
more robust and avoir use after free situation.
Also remove redundant structures and the use of scene as the job owner.
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This commit removes all EEVEE specific code from the `gpu_shader_material*.glsl`
files. It defines a clear interface to evaluate the closure nodes leaving
more flexibility to the render engine.
Some of the long standing workaround are fixed:
- bump mapping support is no longer duplicating a lot of node and is instead
compiled into a function call.
- bump rewiring to Normal socket is no longer needed as we now use a global
`g_data.N` for that.
Closure sampling with upstread weight eval is now supported if the engine needs
it.
This also makes all the material GLSL sources use `GPUSource` for better
debugging experience. The `GPUFunction` parsing now happens in `GPUSource`
creation.
The whole `GPUCodegen` now uses the `ShaderCreateInfo` and is object type
agnostic. Is has also been rewritten in C++.
This patch changes a view behavior for EEVEE:
- Mix shader node factor imput is now clamped.
- Tangent Vector displacement behavior is now matching cycles.
- The chosen BSDF used for SSR might change.
- Hair shading may have very small changes on very large hairs when using hair
polygon stripes.
- ShaderToRGB node will remove any SSR and SSS form a shader.
- SSS radius input now is no longer a scaling factor but defines an average
radius. The SSS kernel "shape" (radii) are still defined by the socket default
values.
Appart from the listed changes no other regressions are expected.
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backend.
- Metal uniform array compatibility in DRW module.
- Guard OpenGL-specific workarounds and flushes behind GPU_type_matches_ex API guard. Add further render boundaries for render paths called outside of the main loop.
Authored by Apple: Michael Parkin-White
Ref: T96261
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D14438
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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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This message isn't useful for users so silenced it.
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Can also happen in other places when the overlay engine is active. Some
parts of the overlay engine uses builtin shaders, but disable the color
space conversion to the target texture.
Currently there the overlay engine has its own set of libraries it could
include and defined a macro to pass-throught the color space conversion.
The library include mechanism currently fails when it couldn't find the
builtin library in the libraries of the overlay engine. This only
happened in debug mode.
This change will not fail, but warns the developer if a library could
not be included. In the future this should be replaced by a different
mechanism that can disable the builtin library. See {T95382}.
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These are functions that are used by eevee-rewrite which has more strict
const correctness.
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Ref T92709
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With the compute pipeline calculation can be offloaded to the GPU.
This patch only adds the framework for compute. So no changes for users at
this moment.
NOTE: As this is an OpenGL4.3 feature it must always have a fallback.
Use `GPU_compute_shader_support` to check if compute pipeline can be used.
Check `gpu_shader_compute*` test cases for usage.
This patch also adds support for shader storage buffer objects and device only
vertex/index buffers.
An alternative that had been discussed was adding this to the `GPUBatch`, this
was eventually not chosen as it would lead to more code when used as part of a
shading group. The idea is that we add an `eDRWCommandType` in the near
future.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D10913
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Logical error let this function to write one past the buffer bounds.
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Follow our code style for doxygen sections.
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This makes more sense as this module has more to it than just
GL extensions.
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Use macro to get calling function name. Helps debugging shaders.
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In Blender 2.90 EEVEE materials were refactored that introduced crashes on Intel
GPUs on Windows. The crash happened in the `local_context_workaround` that temporary
stored compiled materials in a binary form to reload it in the main GL context.
It has been tested that the workaround isn't needed anymore for HD6xx GPUs, but it
is still needed for HD4000.
After several unsuccesfull fixes we came to the conclusion that we could not support
the local context workaround and needed to come with a different workaround. The idea
of this patch is that in these cases there is only a single context that is used for
rendering. Threads that uses these contextes are guarded by a mutex and will block.
Impact on User Level:
* Due to main mutex lock the UI freezes when rendering or baking or feel less snappy
Reviewed By: Clément Foucault, Brecht van Lommel
Differential Revision: https://developer.blender.org/D8410
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- add the use of DRWShaderLibrary to EEVEE's glsl codebase to reduce code
complexity and duplication.
- split bsdf_common_lib.glsl into multiple sub library which are now shared
with other engines.
- the surface shader code is now more organised and have its own files.
- change default world to use a material nodetree and make lookdev shader
more clear.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D8306
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Some convenience function for using DRWShaderLibrary.
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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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These are the modifications:
-With DRW modification we reduce the number of passes we need to populate.
-Rename passes for consistent naming.
-Reduce complexity in code compilation
-Cleanup how renderpass accumulation passes are setup, using pass instances.
-Make sculpt mode compatible with shadows
-Make hair passes compatible with SSS
-Error shader and lookdev materials now use standalone materials.
-Support default shader (world and material) using a default nodetree internally.
-Change BLEND_CLIP to be emulated by gpu nodetree. Making less shader variations.
-Use BLI_memblock for cache memory allocation.
-Renderpasses are handled by switching a UBO ref bind.
One major hack in this patch is the use of modified pointer as ghash keys.
This rely on the assumption that the keys will never overlap because the
number of options per key will never be bigger than the pointed struct.
The use of one single nodetree to support default material is also a bit hacky
since it won't support concurent usage of this nodetree.
(see EEVEE_shader_default_surface_nodetree)
Another change is that objects with shader errors now appear solid magenta instead
of shaded magenta. This is only because of code reuse purpose but could be changed
if really needed.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D7642
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Fixed thanks to @manowii
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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
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While there is an assert here, the run-time code would perform the assignment.
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This patch is (almost) a complete rewrite of workbench engine.
The features remain unchanged but the code quality is greatly improved.
Hair shading is brighter but also more correct.
This also introduce the concept of `DRWShaderLibrary` to make a simple
include system inside the GLSL files.
Differential Revision: https://developer.blender.org/D7060
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This has no user visible impact yet since smoke volumes only support a fixed
set of attributes, but will become important with the new volume object.
For GPU shader compilation, volume grids are now handled separately from
image textures. They are somewhere between a vertex attribute and an image
texture, basically an attribute that is stored as a texture.
Differential Revision: https://developer.blender.org/D6952
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In the Intel HD 4000 driver a shader has to be deleted in the same context in which it is created.
However, because you can't use a rendering context on different threads, to maintain the multithreaded compilation, the solution was to use the `GL_ARB_get_program_binary` and copy the binary generated for the shader and generate a shader on the main context using that binary.
This solution is limited only to Intel HD 4000 and windows.
Reviewers: fclem
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D5019
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This removes the need to pass the Material* all over the place in the draw
manager. Cleanup comming right after.
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- Merged SEQ_OFSDRAW with V3D_OFSDRAW and define in the
DNA_view3d_types: Due to this FSAA always kicked in making the
rendering slow.
- Removed `Texture Solid` and `DOF`.
- Now when chosing Solid rendering the settings
of the original scene is used.
- Added a global override to use scene specific shading. In the
Future we will need to enhanced this so user can change the
settings.
- Added support for LookDev. LookDev crashed as it needed the
`evil_C` what was not set
- LookDev mode will always show the scene + world lights.
Reviewed By: brecht, fclem
Maniphest Tasks: T62517
Differential Revision: https://developer.blender.org/D4738
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Apply clang format as proposed in T53211.
For details on usage and instructions for migrating branches
without conflicts, see:
https://wiki.blender.org/wiki/Tools/ClangFormat
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Most API's already use this convention.
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While \file doesn't need an argument, it can't have another doxy
command after it.
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The struct name is descriptive,
this isn't going to be confused with other variables.
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Move \ingroup onto same line to be more compact and
make it clear the file is in the group.
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