TractEdit v2.1.0

TractEdit v2.1.0 (December 7, 2025)

Key Features

• Whole-Brain Tractogram Support: Enabled support for whole-brain tractogram (tested with 2 million SIFT2 streamlines) and optimized rendering for large datasets using stride-based visualization to avoid processing the entire dataset.
• Improved Rendering: Implemented a toggleable skip rendering feature with an internal feature that automatically calculates the optimal skip percentage based on streamline count to ensure fluid performance.
• Startup Optimization: Introduced a logo splash screen with a loading indicator to defer heavy imports, significantly improving the perceived startup speed of the application.
• Progress Feedback: Integrated a cancelable progress dialog during bundle loading and an embedded progress bar in the 3D viewport for heavy operations (e.g., ROI inclusion/exclusion in whole-brain tractograms) to prevent interface freezing.

Minor improvements

• Refactored the library import sequence to optimize application load times.
• Disabled the legacy VTK-based level-of-detail system in favor of the new skip rendering feature.
• Replaced .ico and .png logo files
• Fixed scaling issues with the application icon on Windows platforms.
• Fixed a visual bug in loading ROI