This adds a new mirror image extension type for shaders and
geometry nodes (next to the existing repeat, extend and clip
options).
See D16432 for a more detailed explanation of `wrap_mirror`.
This also adds a new sampler flag `GPU_SAMPLER_MIRROR_REPEAT`.
It acts as a modifier to `GPU_SAMPLER_REPEAT`, so any `REPEAT`
flag must be set for the `MIRROR` flag to have an effect.
Differential Revision: https://developer.blender.org/D16432
PBVH draw code now builds coarse triangle index buffers
for multires. Note that the coarse grids can be at any
multires depth but is currently hardcoded to 1.
Compile each static shader using shaderc to Spir-V binaries.
The main goal is to make sure that the GLSL created using ShaderCreateInfo and able to compile to Spir-V.
For the second stage a correct pipeline needs to be created and some shader would need more
adjustments (push constants size).
With this patch future changes to GLSL sources can already be checked against vulkan, without the
backend finished.
Mechanism has been tested using MacOS and MoltenVK. For other OS, we should finetune CMake
files to find the right location to shaderc.
```
************************************************************
*** Build Mon 12 Dec 2022 11:08:07 CET
************************************************************
Shader Test compilation result: 463 / 463 passed (skipped 118 for compatibility reasons)
OpenGL backend shader compilation succeeded.
Shader Test compilation result: 529 / 529 passed (skipped 52 for compatibility reasons)
Vulkan backend shader compilation succeeded.
```
Reviewed By: fclem
Maniphest Tasks: T102760
Differential Revision: https://developer.blender.org/D16610
Texture usage flags can now be provided during texture creation specifying
the ways in which a texture can be used. This allows the GPU backends to
perform contextual optimizations which were not previously possible. This
includes enablement of hardware lossless compression which can result in
a 15%+ performance uplift for bandwidth-limited scenes on hardware such
as Apple-Silicon using Metal.
GPU_TEXTURE_USAGE_GENERAL can be used by default if usage is not known
ahead of time. Patch will also be relevant for the Vulkan backend.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D15967
Fix a number of small memory leaks in the Metal backend. Unreleased blit
shader objects and temporary textures addressed. Static memory manager
modified to defer creation until use. Added reference count tracker to
shared memory manager across contexts, such that cached memory allocations
will be released if all contexts are destroyed and re-initialized.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D16415
Implementing non-geometry-shader path for rendering stencil shadows,
used by the workbench engine.
Patch also contains a few small modifications to Create-info to ensure
usage of gl_FragDepth is explicitly specified.
This is required for testing of the patch.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D16436
Implemented geometry shader alternative for rendering of UV edges in Metal, as geometry shaders are unsupported.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D16452
Porting conservative depth rendering to use non-geometry shader path for
Metal.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D16424
Additional mat3 constructors added, global variable namespace collisions
for uniform and object color avoided via re-name.
Metal vertex format compatibility added for shaders wherein vertex data
goes through a double-conversion and cannot be implicitly converted during
Metal vertex assembly e.g. bitmasks passed directly as unsigned type in
shader interface for certain shader interfaces.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D16433
Required by Metal backend for efficient shader compilation. EEVEE material
resource binding permutations now controlled via CreateInfo and selected
based on material options. Other existing CreateInfo's also modified to
ensure explicitness for depth-writing mode. Other missing bindings also
addressed to ensure full compliance with the Metal backend.
Authored by Apple: Michael Parkin-White
Ref T96261
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D16243
To make GPU backends other than OpenGL work. Adds required pixel buffer and
fence objects to GPU module.
Authored by Apple: Michael Parkin-White
Ref T96261
Ref T92212
Reviewed By: fclem, brecht
Differential Revision: https://developer.blender.org/D16042
A utility function retrieved mesh arrays for every element after
05952aa94d which can be easily avoided. This was used when
building the GPU indices for sculpt mode drawing. In my tests this
saves 0.1ms per PBVH node. There may be very slight improvements
in line art and shrinkwrap as well.
This new inheritance behavior is more beneficial for the metal Backend.
Also change the default depth write behavior of shaders to be unchanged.
This makes fragment shader depth amendment more explicit.
This also add the missing depth_write for metal kernels.
Add int attributes interpolation support for GPU subdivision.
Ensure cached shaders match their intended defines.
(The defines parameter was ignored when requesting a second time the same shader with different defines)
De-duplicate the extract_attr_init code for subdiv/non-subdiv.
Reviewed By: jbakker, fclem
Maniphest Tasks: T102076
Differential Revision: https://developer.blender.org/D16420
Vulkan doesn't have a memory allocator builtin. The application should
provide the memory allocator at runtime. Vulkan Memory Allocator is a
widely used implementation.
Vulkan Memory Allocator is a header only implementation, but the using
application should compile a part in a CPP compile unit. The file
`vk_mem_alloc_impl.cc` and `extern_vulkan_memory_allocator` library
is therefore introduced.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D16572
This adds a vulkan backend to GHOST. The code was extracted from the
tmp-vulkan branch. The main difference with the original code is that
GHOST isn't responsible for fallback. For Metal backend there is already
an idea that the GPU module is responsible for the fallback, not the system.
For Blender we target Vulkan 1.2 at the time of this patch.
MoltenVK (needed to convert Vulkan calls to Metal) has been added as
a separate package.
This patch isn't useful for end-users, currently when starting blender with
`--gpu-backend vulkan` it would crash as the `VBBackend` doesn't initialize
the expected global structs in the GPU module.
Validated to be working on Windows and Apple. Linux still needs to be tested.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D13155
Include the node name and parameter index in the variable name for easier debugging.
(Enabled for debug builds only)
Reviewed By: fclem, jbakker
Differential Revision: https://developer.blender.org/D16496
Regression introduced by {rB601995c3b86986cf8f8e5b6e5a65bcfa7f8f2e32}.
Noticed by Heist project as they render final frames with workarounds enabled.
The mentioned patch introduces attaching VBO as textures. This used to be
done by the caller. The mechanism used a different order hence the VBO
could still be unbound when using. This cannot be solved inside the new
mechanism clearly so this patch will just bind when the buffer isn't bound
just before the drawing command is sent to the GPU driver.
Ensure each graph material_function only evaluates the input links that are connected to it.
Differential Revision: https://developer.blender.org/D16425
This implements the base needed for supporting multiple view concurently
inside the same drawcall.
The view used by common macros and view related functions is indexed using
a global variable `drw_view_id` which can be set arbitrarly or read
from the `drw_ResourceID`.
This is needed for EEVEE-Next shadow but can be used for other purpose
in the future.
Note that a shader specialization is needed for it to work. `DRW_VIEW_LEN`
needs to be defined to the amount of view the shader will access.
The number of views contained in a `draw::View` is set at construction
time.
Note that the maximum number of object correctly drawn by the shaders
using multiple views will be lower than thoses who don't.
libdecor (for window decorations) was crashing on exit with the shader
builder, avoid the crash by calling the "background" system creation
function which doesn't initialize window management under Wayland.
libdecor (for window decorations) was crashing on exit with the shader
builder, avoid the crash by calling the "background" system creation
function which doesn't initialize window management under Wayland.
This patch moves the GLSL shaders and their infos to the compositor
module as decided by the EEVEE & Viewport module. This is a non
functional change.
Differential Revision: https://developer.blender.org/D16360
Reviewed By: Clement Foucault
This patch adds a placeholder for the vulkan backend.
When activated (`WITH_VULKAN_BACKEND=On` and `--gpu-backend vulkan`)
it might open a blender screen, but nothing should be visible as
none of the functions are implemented or otherwise crash on a nullptr.
This is expected as this is just a placeholder. The goal is to add shader compilation
+validation to this backend as one of the next steps so we can validate
changes to existing shaders on OpenGL, Metal and Vulkan at the same time.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D16338
