This is a full rewrite of the raytracing denoise pipeline. It uses the
same principle as before but now uses compute shaders for every stages
and a tile base approach. More aggressive filtering is needed since we
are moving towards having no prefiltered screen radiance buffer. Thus
we introduce a temporal denoise and a bilateral denoise stage to the
denoising. These are optionnal and can be disabled.
Note that this patch does not include any tracing part and only samples
the reflection probes. It is focused on denoising only. Tracing will
come in another PR.
The motivation for this is that having hardware raytracing support
means we can't prefilter the radiance in screen space so we have to
have better denoising. Also this means we can have better surface
appearance with support for other BxDF model than GGX. Also GGX support
is improved.
Technically, the new denoising fixes some implementation mistake the
old pipeline did. It separates all 3 stages (spatial, temporal,
bilateral) and use random sampling for all stages hoping to create
a noisy enough (but still stable) output so that the TAA soaks the
remaining noise. However that's not always the case. Depending on the
nature of the scene, the input can be very high frequency and might
create lots of flickering. That why another solution needs to be found
for the higher roughness material as denoising them becomes expensive
and low quality.
Pull Request: https://projects.blender.org/blender/blender/pulls/110117
Adds support for generating curve primtiives avoiding the
use of primtiive restarts. This maixmises geometry performance
when using Metal.
Also ensure that the existing index buffer optimization path is
skipped for indirect draw calls where counts are not known at
submission time.
Authored by Apple: Michael Parkin-White
Pull Request: https://projects.blender.org/blender/blender/pulls/109972
PixelBuffer required addition of buffer re-allocation during mapping
to avoid host updates over-writing previous in-flight data as required
by the GPU. Changes allow multiple copies of existing pixel data to
be in-flight simultaneously.
Authored by Apple: Michael Parkin-White
Pull Request: https://projects.blender.org/blender/blender/pulls/110305
This replaces the Sheen model used in the Principled BSDF with the
model from #108869 that is already used in the Sheen BSDF now.
The three notable differences are:
- At full intensity (Sheen = 1.0), the new model is significantly
stronger than the old one. For existing files, the intensity is
adjusted to keep the overall look similar.
- The Sheen Tint input is now a color input, instead of the
previous blend factor between white and the base color.
- There is now a Sheen roughness control, which can be used to
tweak the look between velvet-like and dust-like.
Pull Request: https://projects.blender.org/blender/blender/pulls/109949
The cleanup of blenkernel last weeks , caused the house of cards to
collapse on top of bf_gpu's shader_builder, which is off by default
but used on a daily basis by the rendering team.
Given the fixes forward in #110394 ran into a ODR violation in OSL that
was hiding there for years, I don't see another way forward without
impeding the rendering teams productivity for "quite a while" as there
is no guarantee the OSL issue would be the end of it.
the only way forward appears to be back.
this reverts :
19422044eda670b53abe0f541db97cbe516e8c813e88a2f44c4e64b772f59547e7a31707fe6c5a57
The problematic commit was 07fe6c5a57
as blenkernel links most of blender, it's a bit of a link order issue
magnet. Given all these commits stack, it's near impossible to revert
just that one without spending a significant amount of time resolving
merge conflicts. 99% of that work was automated, so easier to just
revert all of them, and re-do the work, than it is to deal with the
merge conflicts.
Pull Request: https://projects.blender.org/blender/blender/pulls/110438
Implements part of #101689.
The "poly" name was chosen to distinguish the `MLoop` + `MPoly`
combination from the `MFace` struct it replaced. Those two structures
persisted together for a long time, but nowadays `MPoly` is gone, and
`MFace` is only used in some legacy code like the particle system.
To avoid unnecessarily using a different term, increase consistency
with the UI and with BMesh, and generally make code a bit easier to
read, this commit replaces the `poly` term with `poly`. Most variables
that use the term are renamed too. `Mesh.totface` and `Mesh.fdata` now
have a `_legacy` suffix to reduce confusion. In a next step, `pdata`
can be renamed to `face_data` as well.
Pull Request: https://projects.blender.org/blender/blender/pulls/109819
This was already unsupported in combination with Multiscattering GGX,
prevented the Principled BSDF from using microfaced-based Fresnel for
Glass materials, and would have made future improvements even trickier.
Pull Request: https://projects.blender.org/blender/blender/pulls/109950
The maximum OpenGL versions supported on mac
doesn't meet the minimum required version (>=4.3) anymore.
This removes all the OpenGL paths in GHOST
Cocoa backend and from the drop down menu in
the user preferences.
Pull Request: https://projects.blender.org/blender/blender/pulls/110185
Previously the normal strength linearly interpolated and extrapolated
the normal in world space. Instead do it in tangent space, in a way
that ensure the normal remains above the surface and valid.
Pull Request: https://projects.blender.org/blender/blender/pulls/109763
No user visible changes expected, the new button state is not used yet.
Setting a new uiBut drawflag shows items in an indeterminate state, not
indicating a specific value or state.
Pull Request: https://projects.blender.org/blender/blender/pulls/108210
This removes the GL 3.3 fallback because default viewport engine
now require some features only present in GL 4.3.
Blender now also check for GL version 4.6 instead of 4.5 in some
cases.
Note that this does not remove the OpenGL support on Apple
hardware.
Pull Request: https://projects.blender.org/blender/blender/pulls/109390
Certain feature requirements unsupported by older OS builds
caused failures when running Intel GPUs on older OS's.
This patch increases the minimum required OS version
to one which covers devices supporting all required features.
Authored by Apple: Michael Parkin-White
Pull Request: https://projects.blender.org/blender/blender/pulls/109921
