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RailClone 6.1.1

New features, improvements and fixes in this new version of RailClone 6.1.1. Below, discover all the changes.

New Features

  • Macros can be protected for editing by a password.
    • Set a password using Macro menu->'Protect by Password'.
    • Protected macros are exported in encrypted files.
  • Added new expression Attributes: XSectionPrevLengh, YSectionPrevLengh, XSplineNextType, XSplinePrevType, YSplineNextType, YSplinePrevType.
  • Added experimental option to improve performance, computing the phase 'Style Evaluation' only when Style is modified.
    • By default this feature is disabled. You can enable it setting HKEY_CURRENT_USER\SOFTWARE\Itoo Software\RailClone Pro\useStyleCache=1 in registry.
    • When enabled, you can check it at Stats->'Style Evaluation'. This phase will be zero, when object is rebuilt but style has not changed.
    • This improvement will be enabled by default in next updates, once is properly tested.


  • Display->Viewport->Adaptative mode was rewritten completely, to solve performance hit with complex styles.
    • Some styles (as used in TheParametricLibrary) may be up to 10x faster.
    • Adaptative mode is less efficient than other Display modes, because some processes must be computed two times. For complex objects, we encourage to use one of the other modes (Box, Quick Mesh or Point-Cloud).
  • Style Editor->'RC' icon changes to red, when the RailClone object is deselected in Max scene.


  • Fixed performance issue with complex styles, compared with RC5
    • Improvement can be up to 5 times in some styles as roofing.
  • Fixed continuous updating of the RC object when using Live Link with Chaos Vantage.
  • Fixed: password protected Styles can be edited without a password in RailClone 5.
  • To fix this vulnerability, you must upgrade your scene, loading and saving it with RC 6.0.8 or above.
  • Once updated, password protected scenes cannot be opened (even for rendering) in previous RC versions.
  • Fixed: setting a Style password while editing a macro, assign the password to the macro instead the style
  • Fixed: Numeric->Selector loses list when pasted into macros.
  • Fixed wrong colors in textures when loading library items in Max 2024.
  • Fixed gamma of Style's thumbnail for library items in Max 2024.
  • Fixed: Style Editor->View->'Reset Zoom' has not effect.
  • Fixed: Stats->Viewport->'Number of instances' may be wrong when using some operators.
  • Fixed: removed 'String' type from Random node, which is not usable.
  • Fixed: Operator Tag doesn't add extra inputs to the tags list.
  • Fixed: Segment Bottom padding doesn't have any effect on Top array rows.
  • Fixed: Parameters of type Selector/Percentage dont' work.
  • Fixed: Arithmetic->Expression Editor->previous result is not cleared when clicking 'Evaluate' multiple times.
  • Fixed: Link nodes are connected in the wrong order, when dropped over links of exported attributes.
  • Fixed: Numeric->Selector loses list when pasted into macros.
  • Fixed: RailClone Tools doesn't generate instances if current renderer doesn't support instances (as Scanline renderer).