1.3.1.0
Features
USDShader : Added a node for loading shaders from USD’s
SdrRegistry
. This includes shaders such asUsdPreviewSurface
andUsdUVTexture
, which are now available in theUSD/Shader
section of the node menu.USDLight : Added a node for defining UsdLux lights. This is available from the
USD/Light
section of the node menu.SceneReader, SceneWriter : Added limited support for reading and writing Usd Volume prims.
Improvements
LightEditor : Added section displaying UsdLux shadow parameters.
Cycles : Added support for UsdLux lights.
LightTool : Added support for editing animated plugs.
Median, Erode, Dilate : Improved performance significantly for wide filters. Measured improvements of 100x faster for Erode/Dilate, and 10x faster for Median.
Fixes
SceneWriter : Fixed writing of UsdLux lights.
Viewer : Fixed visualisation of shaping cones for UsdLux lights, which were previously drawn at half the correct angle.
DisplayTransform : Fixed missing
view
presets whendisplay
is at the default value (#5392).Arnold
Fixed translation of
vector
typed outputs defined asvector <name>
in an output definition.Fixed translation of
shadow:enable
andshadow:color
parameters on UsdLux lights, which were previously ignored.
LightTool : Fixed bug causing non-settable plugs to be enabled, such as plugs with an expression as input or those using the default spreadsheet row for their value. This generated the error
ERROR : EventSignalCombiner : Cannot set value for plug {plug} except during computation
.LightEditor : Fixed toggling values in cases where inherited light attributes were set by a script context variable without including a default.
GLWidget : Fixed rare crash when showing a GLWidget for the first time.
BranchCreator : Fixed bug which could cause inconsistent hashes to be generated.
Cycles :
Fixed rendering of meshes with faceted normals, which were previously being rendered as smooth. This applies to meshes without an
N
primitive variable, and meshes whereN
hasUniform
orFaceVarying
interpolation. Note that Cycles has no native support forFaceVarying
interpolation so that in this case all faces are rendered faceted.Fixed translation of Uniform
N
primitive variables. These are now available to be queried from the standardNg
attribute in Cycles.
ImageSampler : Fixed handling of exceptional floating point values. Now returns
inf
ifinf
values are present in the image, rather than3.4e38
.Merge :
Fixed the Difference operation to return correct values for exceptional floating point values. Now there is 0 difference between
inf
andinf
, orNaN
andNaN
. Additionally, there is infinite difference betweenNaN
and any other number, so assertImagesEqual will correctly reportNaN
s that don’t belong.Fixed the Divide operation to return 0 for 0/0. This is consistent with how we previously handled fully black tiles, and avoids introducing
NaN
values which create problems in compositing.
Median/Erode/Dilate : Fixed possible crash bug if there were
NaN
s in the input image.ValuePlug : Fixed bug which caused
ComputeNode::computeCachePolicy()
to be called unnecessarily for input plugs in some circumstances. This could affect performance, particularly when the plug belonged to a node implemented in Python.
API
OptionalValuePlug : Added a new plug type that pairs an
enabled
BoolPlug with avalue
ValuePlug.Shader : Added support for using OptionalValuePlug to represent optional parameters.
Build
Cortex : Updated to version 10.5.1.0.