This release of OpenBVE introduces the next stage of moving the sim away from a purely linear, forwards-facing world- The ability to drive an existing routefile in the opposite direction.

For the moment, if you wish to take advantage of this experimental feature, this must be set in-file with Options.ReverseDirection 1

Significant Changes:

• Change: Alter default object optimisation settings, to allow some X objects to work better.
• New: Add experimental IRawRuntime interface for train plugins. This allows plugins to recieve raw keyboard / mouse input data from the sim.
• New: Add option to allow routefiles to be constructed in the reverse direction. This is experimental and signalling / other trains may not work as expected.
• New: Allow touch elements to define a custom cursor.
• Fix: Crash if switching directly to a POI camera from the cabview.
• Fix: Anisotropic filtering could get stuck off.

Significant Changes:

• New: Add the animated instruction Length to return the current length of the train.
• Change: Support objects with more than 65,535 verticies in a mesh.
• Change: Improvements to handling of Colored Vertices loaded from some .X files.
• Change: The OriginalX parser has been deprecated / removed- If this is selected, the NewXParser will now be used.
• Change: Handle some X files which are actually a relative path. Fixes some night-time routes using BRSigs.
• Change: A more descriptive exception is thrown if one component of a path supplied to the API is empty.
• Change: The WAV parser will now correctly handle some extensible WAV files.
• Change: Better detect some BVE Readme files encoded in non-ANSI charsets.
• Fix: Increase the height of various controls to avoid blank text on some Mono systems (KennyHui)
• Fix: The AI could repeatedly apply / release the brakes on an air braked train in certain circumstances.
• Fix: Couple of camera glitches introduced with v1.9.0.0 / Quad trees.
• Fix: Cab flickering on some systems.

This version of OpenBVE introduces QuadTree visibility, which may be enabled by setting Options.ObjectVisibilty to 2 in routefiles, along with several significant other changes to improve stutter in more complex routes. Hotfix to v1.9.0.1 to fix a glitch with visibility using track based visibility modes and program generated camera movements.

Significant Changes:

• New: Add QuadTree visibility mode- This performs considerably better than track based visibility, and should be considered for all new routes.
• New: Use a separate thread to update visibilty, reduces stutter on complex routes.
• New: Support another variant of the DenshaDeGo! One Handle controller for Nintendo Switch.
• New: Add ScaleX, ScaleY and ScaleZ functions for animation.
• Change: When in 32-bit mode, Unload Unused Textures will be automatically enabled if critical memory pressure occurs.
• Change: Implement caching of texture origins, speeds up multiple uses of large textures.
• Change: Cache the texture transparency type, reduces stutter when using large textures.
• Fix: Issue with an incorrect number of cars being returned to .Net runtime plugins.
• Fix: Some variants of compressed DXT textures failed to decode correctly.
• Fix: A $Include file containing invalid characters in it’s filename crashed the parser.
• Fix: Issue with brake sounds in BVE5 motor sound parser (experimental)
• Fix: Issue with faces containing a texture but no co-ordinates in the Assimp OBJ parser.
• Change: Invert dissolve factor in original OBJ parser.
• Fix: An unknown section could freeze the animated parser.
• Fix: Vertex colors could be incorrect when using the NewXParser.

Significant Changes:

• Improve various small areas of the main menu under different conditions (Primarily mono oddities)- Thanks KennyHui
• Update zh-HK translation- KennyHui
• New: Allow drag + drop into the package install dialog.
• Fix: Object based backgrounds broken in GL3
• Fix: Handle an edge case where older Intel drivers report features they do not support.
• Fix: Better handling of untextured materials in default NewXParser.
• Fix: Improve rendering of HUD with non-default handle text.
• Fix: The ColorAll command did not apply to the final MeshBuilder in a file.

Significant Changes:

• New: Add support for ZKNS-002 controller.
• New: Allow on-screen marker size to be customised via XML
• New: Add sanders as an alternative to the re-adhesion device
• New: Add WheelSlip and WheelSlipIndex animated variables
• Change: Assorted improvements to CarXMLConvertor
• Change: Improve handling of various AI components for UK* plugins
• Fix: The AI driver failed to react to wheelslip if the driver car was not a motor car
• Fix: Looped car sounds could duplicate on a train jump
• Fix: Coupler distances could be incorrect if the consist was reversed.
• Fix: Assorted minor issues when motor car changed via XML
• Fix: Memory leak in Route Viewer.
• Fix: Sounds contained within an animated collection now work correctly.