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4. NVIDIA 26.01 Release Notes

4.1 Evaluation

[New] Support unary compound intervals (SDL-70071)

With the new unary compound intervals feature, users can create specialized intervals based on a single interval as the source.

  • This allows users to create intervals based on metrics within the interval
  • For example, users can create a new interval based on the lane change interval, but only for lane changes below 50 km/h
  • This enables users to utilize all interval features for interesting cases without applying filters

[New] Tracking of vGrades and pass fail rate over time (SDL-67287)

Introduced initial coverage and performance tracking capabilities that enable V&V engineers and managers to monitor test plan progress over time.

  • The system extracts and uploads coverage data to Foretify Manager, recording VGrades for each Test Specification Run (TSR) in the database for future analysis.
  • Foretify Manager displays a first version of trend visualization with plots showing the progress of VGrade and pass rate metrics based on TSRs in the workspace, allowing teams to track verification progress.
  • Updates in the second code drop: The Test Suite Results overview page now also shows the VGrades in unique rows, enabling a faster overview of the results and progress
  • Updates in the third code drop:
    • The Test Suite Results table includes new attributes that clearly indicate which VPlan and VPlan version were applied, making it easier to track and understand test configurations.
    • Each row also indicates whether the VGrade was calculated using the active VPlan in your workspace.

[New] VPlan views allow inspection of subsections of a VPlan (SDL-65220)

Added optional VPlan views in Foretify Manager, enabling V&V engineers to analyze test plan coverage from different perspectives.

  • Users can view data through different analytical perspectives, such as version-based coverage views, to better understand test plan results.
  • The first release demonstrates VPlan views using lane change scenarios, showing how different views can highlight specific aspects of coverage analysis.
  • This capability provides the foundation for flexible test plan analysis and more targeted coverage assessments.
  • See documentation for more details.

4.2 Synthetic Data Generation Editor

[New] Scenario Editor - Import ClipGT to Foretify Manager (SDL-67584)

Users can seamlessly import a ClipGT file into Foretify Manager using a simple drag-and-drop action. Upon dropping the file, Foretify Manager automatically performs the following steps:

  1. Converts the ClipGT file into the Foretify Manager Object List format.
  2. Applies denoising algorithms to clean and refine the data.
  3. Ingests the processed data into the system.
  4. Uploads the ingested clip to the Foretify Manager platform.

Once these steps are complete, users can open the ingested clip and view it directly within the Foretify Manager Visualizer.

For detailed information, see Import Clip.

[New] Scenario Editor - Compare the Ingested/SmartReplay run with original noisy data (SDL-67083)

  • Users can visually inspect and compare the original clip (the original, noisy data) and the ingested clip (the processed, denoised version) side by side in the Single Run Debugger. You can load both versions and use the comparison tools to review differences in trajectories, object detection, and other relevant signals.
  • See Compare noisy and denoised data.

[New] Scenario Editor - Smart Replay allows Replication Mode per actor (SDL-68281)

  • Users can choose the replication mode per actor in Smart Replay. For each actor in a Smart Replay scenario, you can define whether it is replayed in Exact mode (following the original log trajectory) or in Behavioral mode (controlled by Foretellix Driver and/or modified). This enables mixed‑fidelity replays where critical context is preserved, and surrounding traffic can be tuned to create more challenging and realistic scenarios.
  • For more information, see [Playback][playback].

[Changed] Run Smart Replay activities in Execution Manager (SDL-68789)

Users can configure and run Smart Replay activities in the Execution Manager in the same way they configure and run Simulate and Preview activities. For more information, see Simulate.

[New] Scenario Editor - Visualize real world trajectories (SDL-67695)

  • Users can view and compare the original Imported Clip (before being denoised) and the Ingested Clip (after being denoised) trajectories in the Visualizer, with the ability to toggle each one on and off.
  • Detailed instructions can be found here.

[New] Scenario Editor - Show only edited actors (SDL-67597)

  • Added a dedicated Visualizer toggle that enables users to display only actors selected for the Smart Replay scenario, reducing visual clutter and focusing on relevant elements.
  • See here for more detailed instructions.

[New] Scenario Editor - Add synthetic actor flow (SDL-67599)

Users can add and configure synthetic actors:

  • Add new synthetic actors to an existing Ingested Clip and place them on the map.
  • Select the actor type for each new actor (for example, sedan, trailer, etc.).
  • Define the actor’s behavior by placing waypoints on the map and setting a target speed for each waypoint.
  • See Add and Edit Synthetic Actors for details.

[Changed] Scenario Editor - Improved Error Handling and User Communication for Smart Replay (SDL-68153)

  • Enhanced the display of error messages in the user interface for improved clarity and visibility.
  • Standardized error message presentation across all Smart Replay operations to ensure a consistent user experience.
  • Introduced user-friendly error dialogs and notifications with clear, accessible formatting.
  • Error messages are now shown directly in the relevant context, making it easier for users to identify and address issues.
  • For more information, see Resolve Design Issues.

[New] Scenario Editor - Preview Flow (SDL-67692)

  • Preview mode lets users run a lightweight behavioral simulation to quickly preview scenario modifications and then play back the scenario with Foretellix Driver behaviors applied.
  • In this drop, only ingested actors can be previewed and not new actors.
  • For more information, see [Preview][preview].

[New] Scenario Editor - Simulate Flow (SDL-67705)

  • After editing a scenario, users can run a full end-to-end scenario simulation, not just a preview flow, but directly from the Scenario Editor.
  • For more information, see Simulate.

[New] Scenario Editor - Export from Foretify Manager to ClipGT (SDL-67608)

  • Users can export modified Smart Replay scenario from Foretify Manager as a ClipGT file, which is automatically saved to the user’s local Downloads folder.
  • For more information, see Export.

4.3 Bugs fixed

4.3.1 Evaluation

Key Summary
SDL-70253 Misalignment of buckets histogram and its intervals when filter is applied
SDL-70234 Bucket counter mismatched with interval counter
SDL-66798 Count mismatch between VPlan Intervals view and Bucket Hits

4.4 Known Limitations

Key Summary
SDL-71468 When previewing a Smart Replay scenario that has a shorter duration than the original test run, the Launch action is not available directly from the Preview tab.
Workaround: Navigate to the Scenario Editor tab where the full Smart Replay configuration is available, and use the Launch button to extract and run your scenario with the required settings.
SDL-71568 When creating compound intervals, the associated coverage item hits per bucket are duplicated on the matching resulting coverage interval in the vPlan.