v3.3.1

New Features

Rendering

• Added GPU-driven indirect draw to improve rendering efficiency
• Added an option for SingleLayerWater water surface rendering support (Project Settings > Plugins > LCC4Unreal > SingleLayerWater Support)
• Added ShowCollision and ShowFPS shortcut buttons to the Actor panel
• Added reverse animation

Data Formats

• Added support for the SPZ v2 format (Gaussians exported from Marble)
• Added support for larger SOG/SPZ/PLY models

GIS Integration

• Replaced the engine GeoReferencing module with the built-in PROJ library to reduce dependencies on external modules
• SOG/SPZ/PLY Actors are now rotated automatically along the X axis to match the axis definition of external Gaussian splats

Collision

• Added navigation mesh (NavMesh) support for AI pathfinding
• Improved the rendering performance of collision debug visualization

Editor

• Added a focus root component so the viewport camera can focus on it (press F to frame the selection)
• Added multi-language localization support (Chinese, German, French, Japanese, Korean)

Improvements

• Improved collision loading efficiency, and raised the default collision load distance to 300 meters
• Improved SPZ/SOG/PLY rendering performance, significantly raising the frame rate while roaming

Fixes

• Fixed sphere clipping volume rotation not taking effect in the shader
• Fixed the editor hanging while loading a data source asynchronously
• Fixed a memory leak caused by collision data accumulating in an unbounded queue
• Fixed PROJ data files not being included correctly in packaged builds
• Fixed the Actor load state not persisting between sessions
• Fixed public key authentication not working with Unicode paths
• Fixed inaccurate nearest-point distance calculation in node culling
• Fixed a GPU sorting parameter conflict by using a separate staging buffer
• Fixed the sharp performance drop caused by insufficient video memory
• Fixed the loading animation not taking effect at runtime
• Fixed point cloud elevation coloring on SOG/SPZ/PLY Actors