Autodesk 3ds Max 2020.2 Update

Fixed issues:

MAXX Animation:
- Fixed an issue with audio playback after scrubbing.
- Fixed a crash when adding animation layers to CAT rigs with bone animation controllers set to use Setup mode.
- Fixed a crash with Prosound when missing referenced audio files.
- Fixed a crash with Prosound when using Dope Sheet.
MAXX CamerasPhysical:
- Horizontal and Vertical Lens Shift now animates as expected with hidden Physical Cameras.
MAXX Cloud:
- Fixed an issue where some materials that were formerly supported in Shared View stopped working with the release of 3ds Max 2019.3. Support for materials has been restored to what was available before 2019.3.
MAXX Core:
- Improved robustness of the Plugin Manager dialog so it no longer crashes when closing it with gflags.
- Fixed performance issue where Trackview was being invalidated when objects that could not be displayed in Trackview were modified.
- Fixed conversion of doubles in MAXScript (ex: 99.9d0) to allow decimal separators other than "."
- Improved StateSet's support for decimal symbols other than the one in the English Windows regional settings.
- Fixed several string truncation issues on Native Simplified Chinese Platform OS Win10 64-bit, non-100% DPI scaling, running 3ds Max with CHS language pack.
MAXX Fluids:
- Fixed issue with non-world Qt spinners not respecting decimal precision settings.
MAXX Interop:
- The options list when importing ProE now includes all the appropriate options and no longer changes.
- Units now always display correctly when importing STP files.
- Importing FBX files with materials no longer causes any crashes.
- Body object and joined body object are now properly exported as IGES.
- When importing STEP files from CREO4 using the Grouping option, the structure tree is now kept and objects are in their proper positions.
- Importing SketchUp files no longer fails if a component or group has a name longer than 128 characters.
- 3ds Max will no longer crash or give errors when importing SketchUp files newer than version 2015.
- Removed "Google" from the SketchUp import name in the import options list.
MAXX MAXScript:
- AutoLayoutOnResize true on rollouts now displays controls in the rollout properly.
- Fixed system exception when executing meshOps.attachList $ when an object is not selected. MAXX-51301
- Improved robustness of the MAXScript Listener dialog to stop crashes when exiting with gflags.
- MAXScript Listener Editor, macro-recorder windows, and the Find\Replace dialog no longer have focus issues.
- Added a warning message to MAXScript when the value of a global variable is set through a local variable with the same name.
- Fixed memory leak in MAXScript Editor.
- Fixed string truncation issues in the PolyTools' Paste Selection dialog.
- Fixed string truncation issues in the Create Empty Project dialog when using Simplified Chinese language pack in Windows 10 with non-100% display scaling.
- Tape helper objects created through MAXScript can now be selected after calling the Enable() function on it.
MAXX MaterialEditors:
- Green channel now affects lift/offset in the Color Correct map.
- Reset Material Editor Slots no longer triggers a MAXScript error.
MAXX Modeling:
- Generally improved chamfer algorithms to better handle edge cases - producing more pleasing geometry overall and avoiding degeneracies such as flattening or skewing of edges.
- Fixed an issue where UVW Map would assert with particular mesh objects.
- Data Channel modifier now displays vertex channel data properly.
- Shell modifier no longer has rounding errors and doesn't make inappropriate float comparisons.
- Missing TextPlus MAXScript commands have been added.
- Fixed issues with chamfer UV generation.
MAXX ParticleFlow:
- Particle Flow no longer displays a blank window when launched.
MAXX Python:
- Accessing invalid object attributes using pymxs has become 20 times faster.
- Fixed issue iterating over many scene objects and inspecting their properties using pymxs.
MAXX Rendering:
- Multi/Sub-Object material ON/OFF toggle now works in Production with ART.
- Advanced Wood default preset now matches 3D Ash Glossy preset as expected.
MAXX SDK:
- Fixed an issue to make the following .NET API interfaces available: IPoint3Value, IQuatValue, IAngAxisValue, IEulerAnglesValue, IMatrix3Value, IPoint2Value, IPoint4Value, IBox2Value, IBox3Value, IArray, IBitArrayValue, IColorValue, IFileStream, IMXSDictionaryValue, IMSTime, IMSInterval, IName, INumber, IFloat, IDouble, IInteger, IInteger64, IIntegerPtr, IString, IStringStream, IStructDef, IStruct, IMAXBitMap, IMeshSelection, IMAXKeyArray, IMAXMaterial, IMAXMaterialLibrary, IMAXTexture, IMAXMeditMaterials, IMAXNode, IMAXNodeChildrenArray, IMAXPB2ArrayParam, IMAXModifierArray, ISet, IObjectSet, ICurSelObjectSet, IPathName, IMAXNamedSetArray, IMAXNamedSet, and ISafeArrayWrapper.
- Fixed issues in the 3ds Max .NET assembly (Autodesk.Max.dll) that caused 3rd party plugins and tools built against it to crash.
MAXX UI:
- Wrap Cursor Near Spinner option no longer behaves strangely when used near screen edges.
- Lock UI Layout toggle now works as expected in floating windows, such as the Scene Explorer and Track View.
- Hotkey Editor no longer has text cropping issues when the window is too small.
- Global Search tool icons no longer disappear after using certain search terms.
- Adding or removing a large number of layers no longer causes performance issues related to the Layers toolbar UI.
- Hotkey Sets now respect alphanumerical order in the set selector combo box when there is a mix of upper and lower case names.
- UI scaling and display now work as expected and overrides Qt environment variables.
- Modifiers no longer execute twice when mapped to the Spacebar as a keyboard shortcut.
- Tooltips for menu entries now skip level 1 content when they should go directly to extended/level 2 content.
- Right-clicking a spinner in a caddy control now performs a reset of the value, as expected.
- The MassFX toolbar now has all correct icons regardless of which workspace is in use
- Continually pressing Alt+A or Shift+A no longer causes freezes or crashes.
- Dragging spinners across the screen borders no longer causes non-linear value jumps.
MAXX Viewports:
- Orthographic camera middle-mouse zoom now only affects 1 viewport.
- Multi/Sub-Object material ON/OFF toggle now works in the viewport.

Known issues and workarounds:

MAXX FileIO:
- When the operating system decimal separator is set to a non-standard character, the WRL and ASE exporters use that character when exporting which may cause data issues.

Autodesk 3ds Max 2020 software is supported on the following 64-bit operating systems and at a minimum, requires a system with the following 64-bit hardware:

Operating System
Microsoft Windows 7 (SP1), Windows 8, Windows 8.1, and Windows 10 Professional operating system
Browser Autodesk recommends the latest version of the following web browsers for access to online supplemental content:
Microsoft Edge
Google Chrome
Microsoft Internet Explorer
Mozilla Firefox
Hardware
CPU 64-bit Intel or AMD multi-core processor with SSE4.2 instruction set
Graphics Hardware Refer to 3ds Max Certified Hardware for a detailed list of recommended systems and graphics cards
RAM 4 GB of RAM minimum (8 GB or more recommended)
Disk Space 9 GB of free disk space for install
Pointing Device Three-button mouse