Fix an incoherence between the Eevee Materials menu and the Cycles Materials menu :
Eevee :
{F10230448}
Cycles :
{F10230449}
Simply Fixed by replacing the Cycles UI code by the Eevee UI code.
Thanks to @Brainzman for helping me create this diff and translate
Reviewed By: Blendify
Differential Revision: https://developer.blender.org/D11979
It was possible that render buffers and scene kernel data will be out
of sync because reset and scene update happens in different locks.
This is similar issue we've fixed in the Cycles X branch, so backported
relevant changes from there.
This change removes what seems to be unused feature kernel.
Differential Revision: https://developer.blender.org/D11828
When compiling BSDF nodes, we only assing stack space to the normal and
tangent inputs if they are linked. However, it could be that the
ConstantFolder removed the link, so checking if there is a link fails
to take this into account.
To fix this, added a flag to ShaderInput to keep track of whether a
constant was folded into the input, and use it as well to verify that
the socket is linked when assigning stack space.
Reviewed By: brecht
Maniphest Tasks: T70615
Differential Revision: https://developer.blender.org/D11731
Custom properties defined on objects are not accessible from the
attribute node when rendering a volume in Cycles. This is because
this case is not handled.
To handle it, added a primitive type for volumes in the kernel,
which is then used in the initialization of ShaderData and to
check whether an attribute lookup is for a volume.
`volume_attribute_float4` is also now checking the attribute
element type to dispatch to the right lookup function.
Reviewed By: #cycles, brecht
Maniphest Tasks: T87194
Differential Revision: https://developer.blender.org/D11728
Offset rays from the flat surface to match where they would be for a smooth
surface as specified by the normals. In the shading panel there is now a
Shading Offset (existing option) and Geometry Offset (new).
The Geometry Offset works as follows:
* 0: disabled
* 0.001: only terminated triangles (normal points to the light, geometry
doesn't) are affected
* 0.1 (default): triangles at grazing angles are affected, and the effect
fades out
* 1: all triangles are affected
Limitations:
* The artifact is still visible in some cases, it could be that some quads
require to be treated specifically as quads.
* Inconsistent normals cause artifacts.
* If small objects cast shadows to a big low poly surface, the shadows can
appear to be in a wrong place - because the surface moved slightly above
the geometry. This can be noticed only at grazing angles to light.
* Approximated surfaces of two non-intersecting low-poly objects can overlap
that causes off-the-wall shadows.
Generally, using one or a few levels of subdivision can get rid of artifacts
faster than before.
Differential Revision: https://developer.blender.org/D11065
The check on the transformation introduced in rBb313525c1bd0 to fix
T88515 would sometimes prevent to update the light if the Blender object
changed. To fix this, reverse the order in which the checks happen so
that we do not shortcuit the object change check.
This patch fixes many minor spelling mistakes, all in comments or
console output. Mostly contractions like can't, won't, don't, its/it's,
etc.
Differential Revision: https://developer.blender.org/D11663
Reviewed by Harley Acheson
Currently, the OptiX BVH build options are selected based on whether
we are in background mode (final renders) or not (viewport renders).
In background mode, the BVH is built for fast path tracing and low
memory footprint, while in viewport, it is built for fast updates.
However, on platforms without OpenGL support, the background flag is
always set to true and prevents using fast BVH builds in the viewport.
Now, the BVH options derive from the Scene BVH settings:
* if BVH is static, a fast to trace BVH is built
* if BVH is dynamic, a fast to update BVH is built
Reviewed By: #cycles, brecht
Differential Revision: https://developer.blender.org/D11154
This adds support for importing UV sets which are defined per vertex,
instead of per face corners. Such UV sets can be generated when the
mesh is split according to UV islands, or when there is only one UV
island, in which cases only a single UV value can be stored per
vertex since vertices will never be on a seam.
After looking into task isolation issues with Sergey, we couldn't find the
reason behind the deadlocks that we are getting in T87938 and a Sprite Fright
file involving motion blur renders.
There is no apparent place where we adding or waiting on tasks in a task group
from different isolation regions, which is what is known to cause problems. Yet
it still hangs. Either we do not understand some limitation of TBB isolation,
or there is a bug in TBB, but we could not figure it out.
Instead the idea is to use isolation only where we know we need it: when
holding a mutex lock and then doing some multithreaded operation within that
locked region. Three places where we do this now:
* Generated images
* Cached BVH tree building
* OpenVDB lazy grid loading
Compared to the more automatic approach previously used, there is the downside
that it is easy to miss places where we need isolation. Yet doing it more
automatically is also causing unexpected issue and bugs that we found no
solution for, so this seems better.
Patch implemented by Sergey and me.
Differential Revision: https://developer.blender.org/D11603
When moving a linked collection, we seem to only receive a depsgraph update
for an empty object so the Blender synchronization cannot discriminate it
and tag the object(s) (light or geometry) for an update through
id_map.set_recalc.
This missing transform update only affects lights since we do not check
manually if the transformations were modified like we do for objects.
To fix this, add a check to see if the transformation is different provided
that a light was already created.
Reviewed By: brecht
Maniphest Tasks: T88515
Differential Revision: https://developer.blender.org/D11574
Cycles, Eevee, OSL, Geo, Attribute
This operator provides consistency with the standard math node. Allows users to use a single node instead of two nodes for this common operation.
Reviewed By: HooglyBoogly, brecht
Differential Revision: https://developer.blender.org/D10808
Allows to centralize storage and modification checks in a single place,
avoiding duplication in the synchronization code.
Ideally we would somehow be able to more granularly modify Cycles side
objects. Leaving this for a future decision, because it might be better
to implement it as a graph on the sync side.
Makes it more explicit they operate on shading/light.
Gives room to move more viewport related settings into this class and
cover with specific or generic modification checks.
Such pattern should only be used when it is really needed. Otherwise
just stick to a more regular design, without worrying who is the user
of the class. Otherwise it will be annoying to subclass or unit test.
No need to state that it is a viewport display pass, since the method
is within viewport parameters it is implied that parameters do belong
to the viewport.
Brings this code closer to the Cycles-X branch.
Both before and after can have artifacts with some normal maps, but this seems to give
worse artifacts on average which are not worth the minor performance increase.
This reverts commit 21bc1a99ba.
Ref T88368, D10084
When an `AttributeSet` is tagged as modified, which happens after the addition or
removal of an `Attribute` from the set, during the following GeometryManager device
update, we update and repack the kernel data for all attribute types. However, if we
only add or remove a `float` attribute, `float2` or `float3` attributes should not
be repacked for efficiency.
This patch adds some mechanisms to detect which attribute types are modified from
the AttributeSet.
Firstly, this adds an `AttrKernelDataType` to map the data type of the Attribute to
the one used in the kernel as there is no one to one match between the two since e.g.
`Transform` or `float4` data are stored as `float3s` in the kernel.
Then, this replaces the `AttributeSet.modified` boolean with a set of flags to detect
which types have been modified. There is no specific flag type (e.g.
`enum ModifiedType`), rather the flags used derive simply from the
`AttrKernelDataType` enumeration, to keep things synchronized.
The logic to remove an `Attribute` from the `AttributeSet` and tag the latter as modified
is centralized in a new `AttributeSet.remove` method taking an iterator as input.
Lastly, as some attributes like standard normals are not stored in the various
kernel attribute arrays (`DeviceScene::attribute_*`), the modified flags are only
set if the associated standard corresponds to an attribute which will be stored
in the kernel's attribute arrays. This makes it so adding or removing such attributes
does not trigger an unnecessary update of other type-related attributes.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D11373
