Fixed a shadow bias issue with cascading shadowmaps when in AA mode in the viewport.

Added rounded corner options to the Curve::2.0 SOP radial menu when working with beziers and an option to swap the mode when working with NURBs or Polygons, fixed the Order parameter on Curve::2.0 SOP to make 2 the lower limit, and changed the default point type to smooth when editing an input curve.

Fixed an issue with spotlight shadowing in the viewport that could cause excessive shadowing.

Several improvements to the Bullet solver to make it easier to modify the scale of packed RBDs during the sim.

• The `pscale` and `scale` attributes are now recognized by the solver, andwill automatically update the collision shape with any changes to theseattributes. In the majority of cases this can be done efficiently withoutunpacking / rebuilding the shape.

• To make it simpler to modify the scale, the solver no longer requiresthat you also update the packed prim transform when manually adjustingthe position transform attributes (i.e. `orient`, `pscale,` or `scale`).The packed prim's initial transform is now stored in the 'restxform'attribute, so the solver can always update the packed prim's fulltransform (initial transform plus the position transform described by'orient', 'scale', 'P', etc) at the end of each timestep.

• For animated static objects (`i@animated=1`), the solver will also nowupdate the scale attribute with any scale changes in the SOP packedprim's transform.

Added support for MaterialX volume shaders.

In the AssetGallery and AssetWorkingSetGallery, add a widget for changing the size of the thumbnails.

Fixed a python error that would occur when entering Curve::2.0 due to a incorrect icon used in the HUD, and fixed a bug that could result in the radial menu staying as curve sop when deleting the Curve::2.0 node while in the state.

Properly set session mode when creating a pipe or socket session

Add support to the Skeleton Blend SOP to use (or multiply) bias values from an attribute.

Fixed a regression in viewport displacement mapping that could cause a faceted look on displaced geometry, especially in areas with high curvature and very little displacement.

MaterialX bug fixes:

• Mtlx Add node failing with BSDF types.
• Mtlx Modulo node producing bad code.
• Total internal reflection not working with Dielectric_bsdf.
• Broken energy conservation with Dielectric_bsdf under "RT" scatter mode.

Added the option to clear the PYTHONPATH variable before starting the Houdini Engine server, and when the asset is viewed in Houdini via the "View Assets in Houdini" menu item.

The Remesh to Grid SOP no longer errors when using dilate/erode with an anisotropic grid.

• Deprecated the creation of input curves using the curve SOP, in favour of creating input curves using HAPI, using HAPI_CreateInputCurve.

• Deprecated the creation of input curves using the curve SOP, in favour of creating input curves using HAPI, using HAPI_CreateInputCurve.

Add HAPI input curves - helper functions that can allow you to create input curves more easily

• Updated example scenes.
• Documentation update
• Added #if UNITY_EDITOR preprocessor to a UI function
• Added project curves to scene view direction to make projecting curves more UX friendly.
• Additionally, restarted pipe sessions will now create a pipe session instead of a socket one
• Added some error checking with shelves
• Additionally, fixed an issue where the Add selection menu wouldn't update when cooking is set to false.
• Miscellaneous bug fixes regarding errors and UI.
• Fixed minor undo error log

(Windows Only) Fixed an issue that uninstalling launcher reported error "Failed to unknown unknown".

The Copy Inputs to Outputs parm on the Python Script TOP now has a third option to copy input files if the script itself does not add any outputs.

Fixed a potential crash in the Bullet solver when an object contained empty geometry.

Adding hou.logging module to control Houdini's new universal logging framework.

Fixed the Render Gallery pane so that it creates a backend database that is accessible by users other than the gallery's creator.

Added the ability to move points in draw mode with MMB to Curve::2.0 SOP, and fixed a bug that could result in degenerate curves when deleting all points except a rounded corner in a closed curve.

Updated help for the Edit SOP's Transform Space parameter.

ragdollconstraints and ragdollsolver now take packed geometry as Collision Geometry, not only rbd packed geometry Fixed the Object and Speed based ragdoll transitions, they should as expected now