Changelog
- AC & CSP physics: Fixed old AC bug where subsequent hits override suspension damage; Thermal model v4 is compatible with AIs; Speed limiter rewritten to be more accurate; New parameters for [_EXTENSION_FLEX]; Added EXT_DAMAGE_GAIN parameter to damage suspension; Added water temperature calculation tweaks; Surface noise reworked; Finished physics experiments cannot be disabled online; Editing custom physics setup sliders triggers ride height reevaluation; Physics engine now uses GIMPACT for detecting collisions.
- New taskbar: Option to change screen edge, configure icon alignment, and smaller fixes.
- New menu: Lap splits now match original behavior; Split times rounded similarly to original menu; Quick session switching in race info; Fixed time table printing.
- Rain FX: Reduced freezes when rain starts; Windscreen and wiper fixes; Adjusted splash particle thresholds; Compatible with accurate mirror projection; Fixed rain occlusion bug.
- CSP Debug app: New checkbox for track surface relief; New buttons to break/fix suspension and view tyres.ini; Outline of saved car state and distance; LOD selector shows distance multiplier.
- Car state saving: Rewritten to fix strut suspension jumps; Saving more data (turbos, controllers, ERS/KERS, cosmic damage); Fixed CSP body flex, driver shifting, and ballast issues; Improved interpolation and state precision.
- Visuals: Fixed light bouncing off cars; Improved dynamic shadows and headlight edges; Adjusted tree shadows; Improved Grass FX and fake wheel shadows; Fixed depth-based particles collision; Rear mirrors use clamping sampler; Brake sparks disabled.
- Options: New VRR / uncapped FPS option in DXGI Tweaks; New Schedule weather controller; Option to disable mouse wheel zooming in free camera; Experimental FFmpeg option.
- Default Weather FX style: Puddles audio now works with zero rain/wetness; Increased lightning illumination.
- Showroom and CSP previews: Fixed crashes and rendering issues; Added Gaussian splats for showrooms.
- Neck FX: Fix cursor in place disabled by default; Fixed motion glitches on AI splines; Added helmet definition for vrc_rhp_helmet_b_fa.
- DualSense haptic feedback: Available with Wheel input mode; Operates in stereo; Adjusts to master audio volume.
- Music monitoring: New efficient implementation with direct audio capture; Experimental option for internal music players; Updated AIMP integration.
- Miscellaneous: Turbo boost estimation for remote cars; Flash lights button updated; Surfaces FX physics improvements; Experimental controller tweaks for steering extrapolation; Car Debug app adds Dynamic & aero controllers section; Rewritten bounding sphere calculation; CSP uses WIC for PNG screenshots; Radiance (.hdr) and TGA support; Reworked shaders cache purging; High resolution timers for default timing modes; Re-enabled Check Intel CPUs option; HBAO+ initializing in background; Background shaders loading improvements; Hyperthreading fix reworked for Windows 11; Live changes for more assetto_corsa.ini values; CEF updated to v150.0.11.0; meshoptimizer updated to 1.1.
- Fixes: SFP compatible with altonline; Fixed disabled assists showing as enabled; Fixed replay leaderboard; Various crashes fixed (custom physics, P2P, original flames, GPU); Performance improvements; Fixed tyre states when skipping to race session; Fixed disappearing cars with single LOD; Fixed Account for ping online crashes; Extra FX resolution change fixes; Fixed online session names; Fixed chat settings controls; Exporting skidmarks compatible with DLSS; Nice Screenshots resolution multiplier fixed; Improved non-linear Weather FX compatibility; Full reload no longer breaks custom lights; Faster bounding spheres recompute; Fixed Walking Out helper; Multiple monitor fixes; Smoother loading process.
- Configs: Racing cars now get low beams; New WHEEL_BRAKE_TEMPERATURE parameter; Car stereo fixes and SKIP_FRAMES parameter; Car headlights cast shadows regardless of DIFFUSE_CONCENTRATION; New MAX_SPEED_KMH for cornering lamps; Fixed pit ride height detection; DISABLE_NEW_FLAMES_ENTIRELY working as intended; New EXPORT_RAIN_TYRES option; Rewritten car cloth flags physics; New COLOR_SAMPLE_MIP_LEVEL for grass; New DELAY_BETWEEN_RUNS for track animations; Fixed track config edit reloads; New RECOMPUTE_TANGENTS option; Fixed make-rgba:: and make-script:: textures; Objects Inspector 1D value dragging; New WRITE_ONLY depth mode; New session tweaks for damage preservation and axle-specific tyre changes.
- Lua & Python: New ac.SimState and ac.StateCar.suspensionDamage fields; ac.onCarCollision() works in replays; New music monitoring functions in shared/utils/playing; New ac.getReplayFilename(); New UI functions (nextRow, pathSetColor, drawRectMultiColor); Improved Web API certificate pinning and error handling; New Scene API functions (createMeshAsync, applyShaderReplacementsAsync); Improved I/O API for console processes and serial ports; New car physics script fields and setup tab improvements; New Physics API functions for FFB and suspension damage; New Apps API flags and power state updates; Lua Debug app improvements; Animated GIFs in loading screens; Python app freeze warnings and new ac.ext_setMessage(); Fixed lag for Python apps with keyboard/mouse hooks.
Description
This update introduces significant improvements to physics, visuals, and the API ecosystem for Assetto Corsa.
Features
- Enhanced Physics: Improved suspension damage logic, accurate speed limiters, and a new collision detection system using GIMPACT.
- Visual Upgrades: Refined rain effects, dynamic shadows, and better-integrated Grass FX.
- User Interface: A new taskbar with customizable alignment and a revamped menu with improved lap split and race info tracking.
- Hardware Support: Stereo haptic feedback for DualSense controllers and updated hyperthreading compatibility for Windows 11.
- Developer Tools: Expanded Lua and Python APIs, including asynchronous mesh loading and improved debugging tools.
- Performance: Background shader loading to reduce stutters and optimized timing modes for better responsiveness.