Releases · Autodesk/arnold-usd

Using the new instancer procedural: The procedural now uses the core shipped instancer procedural. (#256)
Prim Visibility: The visibility token from UsdGeomImageable is now correctly inherited. (#218)
Fixed a crash when using the Arnold Viewport functions. (#295)
Fixed a crash when writing USD files with upper-case extensions. (#288)

Computed Primvars: Computed primvars are now supported, enabling previewing UsdSkel and Houdini crowds. (#265 and #267)
Improved Rendering: The Render Delegate is now using the Arnold Render API correctly, leading to better responsiveness. (#270)
Improved Render Buffers: The Hydra Render Buffer support is now significantly improved, including improved performance. (#8)
32-bit buffers: The render delegate now outputs 32-bit float buffers, instead of dithered 8 bit whenever possible. (#9)
arnold:global: prefix: Prefixing Render Settings with arnold:global: is now supported.
Shaping Parameters: Shaping parameters on Sphere Lights are now supported. This includes Spot and IES parameters, excluding IES normalize and IES angle scale. (#314)
Barndoor Parameters: Solaris' Barndoor parameters are now roughly approximated using the barndoor filter. Note, Arnold does NOT match Karma. (#332)
Fixed a crash when instancer nodes had uninitialized node pointers. (#298)
Fixed a bug with aborted renders not marking the render pass as converged. (#4)
Fixed a bug where the camera jumped to the origin in Solaris. (#385)

Mask: The scene format plugin now supports a mask parameter, allowing selective export of Arnold nodes. (#274)
Closures: Closure attributes are now written to the USD file. (#322)
Options: The options node is now correctly translated. (#320)
Fixed bugs with the string export functions. (#320)
Fixed a crash when writing pointer attributes. (#342)

Primvar translation: The procedural now uses "primvars:st" and "primvars:uv" for UV coordinates, and "normals" for "nlist" on polymeshes. (#206)
Per-vertex UV and Normals: Per-vertex UVs and normals are now supported on polymeshes. (#222)
Shader output connections: Support for shader output connections has been improved, including per-component connections. (#211)
Point varying primvars: Varying primvars are now supported on point schemas. (#228)
USDVol support: The procedural now supports USD Volumes schemas. Using grids from two different files for a single volume is not allowed. (#227)
Serialized USD: The procedural supports creating the stage from a set of strings without requiring a file. (#235)
Basis Curves: The procedural now supports Basis Curves. (#239)
Boolean parameters: The procedural now supports setting boolean parameters on Arnold nodes using bool, int or long USD attributes. (#238)
Converting between Width and Radius: Width attributes are now properly converted to Arnold's radius parameters. (#247)
RTLD_LOCAL: RTLD_LOCAL is used instead of RTLD_GLOBAL when dlopening in the procedural. (#259)

Left Handed Topology: Left-handed topologies are now supported, including converting the varying primvars and indices for position, normal and uv attributes. (#207)
Motion Key mismatch: Normal and position motion keys counts are the same now. (#229)
RGBA Primvars: RGBA primvars are now supported. (#236)
Hydra Point Instancer: Support of the Point Instancer has been greatly improved, including instancing of volumes. (#18 and #123)
Uniform Primvars: Uniform primvars on points are now supported.
Pixel format conversion: The render buffers now converts between pixel formats correctly. (#245)
Light Dirtying: Transforms are now correctly preserved when parameters are dirtied, but transforms are unchanged on lights. (#243)

Linux Build: Building schemas using Arnold 6.0.2.0 is now supported on Linux. (#219)

Node names for attributes: Node names are now correctly formatted and sanitized when writing node and node array attributes. (#208)

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