Currently only supports single image frames (no animation possible).
If quality slider is set to 100 then lossless compression will be used,
otherwise lossy compression is used.
Gives about 35% reduction of filesize save when re-saving splash screens with lossless
compression.
Also saves much faster, up to 15x faster than PNG with a better compression ratio as a plus.
Note, this is currently left disabled until we have WebP libs (see T95206)
For testing precompiled libs can be downloaded from Google:
https://storage.googleapis.com/downloads.webmproject.org/releases/webp/index.html
Differential Revision: https://developer.blender.org/D1598
Basic testing on windows only so far. Will need some testing on Linux as well
when the Linux enablement patch is ready.
Does not enable Vega APUs yet (which would be gfx902 or gfx90c).
Differential Revision: https://developer.blender.org/D14432
Explicit template specialization has to happen outside of class
definition (some compilers are more lenient). Since it is not possible to
specialize the method without also specializing the enclosing class for
all of its possible types, the method is moved outside of the class, and
specialized there.
Use templates to optimize the CPU texture sampler to interpolate using
float for single component datatypes instead of using float4 for all types.
Differential Revision: https://developer.blender.org/D14424
rBc1909770e7f192574ea62449dd14b4254637e604 introduced "PXR_LIB_PREFIX" for building the
dependencies, so only makes sense to use the same name in the Hydra render delegate CMake too
This patch adds a Hydra render delegate to Cycles, allowing Cycles to be used for rendering
in applications that provide a Hydra viewport. The implementation was written from scratch
against Cycles X, for integration into the Blender repository to make it possible to continue
developing it in step with the rest of Cycles. For this purpose it follows the style of the rest of
the Cycles code and can be built with a CMake option
(`WITH_CYCLES_HYDRA_RENDER_DELEGATE=1`) similar to the existing standalone version
of Cycles.
Since Hydra render delegates need to be built against the exact USD version and other
dependencies as the target application is using, this is intended to be built separate from
Blender (`WITH_BLENDER=0` CMake option) and with support for library versions different
from what Blender is using. As such the CMake build scripts for Windows had to be modified
slightly, so that the Cycles Hydra render delegate can e.g. be built with MSVC 2017 again
even though Blender requires MSVC 2019 now, and it's possible to specify custom paths to
the USD SDK etc. The codebase supports building against the latest USD release 22.03 and all
the way back to USD 20.08 (with some limitations).
Reviewed By: brecht, LazyDodo
Differential Revision: https://developer.blender.org/D14398
CPU code for cubic interpolation with clip texture extension only performed
texture interpolation inside the range of [0,1]. As a result, even though the
volume's color is sampled using cubic interpolation, the boundary is not
being interpolated. The GPU appears was interpolating samples that span the
clip boundary softening the edge, which the CPU now does also.
This commit also includes refactoring of 2D and 3D texture sampling in
preparation of adding new extension modes.
Differential Revision: https://developer.blender.org/D14295
Consider switching to rendered shading type as a request to start
rendering, without requiring to un-pause.
This minimizes amount of clicks needed to start rendering after
viewport was paused once, and then shading mode got changed.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D14244
To make porting to other architectures easier, clarifying that this does not
need to be supported. The unused parallel_reduce implementation assumed warp
size 32, but is easy to update if we ever need it in the future.
While the correlation may not work well with adaptive sampling, in practice
this appears to work ok in most cases
Automatic scrambling distance uses the minimum samples from adaptive sampling,
which provides a good default estimate to avoid artifacts.
Contributed by Alaska.
Differential Revision: https://developer.blender.org/D13325
This allows users to type in values larger than 1, for use in conjunction
with automatic scrambling distance.
Contributed by Alaska.
Differential Revision: https://developer.blender.org/D13580
When the light direction is not pointing away from the geometric normal and
there is a shadow terminator offset, self intersection is supposed to occur.
Before this patch, users had to switch render engines just to change how the
hair should be displayed in solid and material preview viewport shading modes.
Differential Revision: https://developer.blender.org/D14290
Caused by an integer overflow in the tiling utilities of OptiX SDK.
Seems for now it's easier to copy and modify code to our sources so
that we don't need to bump SDK version requirement (which might lead
to an increased driver requirement as well).
There are still some fixes needed from a newer driver to have such
denoising to work properly: Windows requires 511.79, Linux 510.54.
Thanks Patrick for investigation!
Differential Revision: https://developer.blender.org/D14300
Fix T95462: Partly transparent objects appear to glow in the dark
The issue was caused by incorrect check for exceeded number
of transparent bounces: the same maximum distance was used
for picking up N closest intersections and counting overall
intersections count.
Now made it so intersection count is using ray distance which
matches the way how Embree and OptiX implementation works.
Benchmark result:
{F12907888}
There is no big time difference in the pabellon scene. The
Victor scene timing doesn't seem to be very reliable as the
variance in time across different benchmark runs is quite
high.
Differential Revision: https://developer.blender.org/D14280
An alpha component can be specified for an object's color. This adds an alpha
socket to the object info shader node allowing for the alpha component of the
object's color to be accessed in the shader editor.
Differential Revision: https://developer.blender.org/D14141
This patch hides the MetalRT checkbox for AMD GPUs, pending fixes for MetalRT argument encoding on AMD.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D14175
Without ray offsets intersections at neigbhoring triangles are found, as
the ray start is exactly at the vertex. There was a small offset towards
the center of the triangle, but not enough.
Now this offset computation is moved into Cycles and modified for better
results. It's still not perfect though like any offset approach, especially
with long thin triangles.
Additionaly, this uses the shadow terminate offset for AO rays now, which
helps remove some pre-existing artifacts.
