Version 25.07#

July 28, 2025#

Version Highlights

  • PPISP Production Ready - Physically plausible image signal processing now in production

  • Blackwell GPU Support - Full support for NVIDIA’s latest B100/GB100 architecture

  • Enhanced Temporal Appearance - Improved handling of dynamic lighting changes

  • MCMC Memory Cap

  • Stability enhancements

New Features

PPISP Integration Now Production Ready (NRE-485)

  • Full production integration of Physically Plausible Image Signal Processing

  • Supports exposure compensation, vignetting correction, color correction, and camera response functions

  • Ported to Slang for improved performance

  • Available for both camera and post-processing pipelines

  • Missing : nRend integration

Blackwell GPU Support (NRE-1191)

  • Full support for NVIDIA B100/GB100 GPUs

  • Optimized CUDA kernels for Blackwell architecture

  • Support for FP4 precision on new tensor cores

  • Compatibility from CC80 to CC100

Enhanced Temporal Appearance Changes

  • Improved handling of traffic lights and vehicle brake lights

  • Better temporal consistency for dynamic lighting

  • Reduced flickering in time-varying scenes

MCMC Promoted to Default Strategy

  • MCMC sampling strategy moved from experimental to default configuration

  • Improved convergence and quality over previous default

  • Legacy strategy still available via config override

Bug Fixes

  • Fixed multi-GPU training crashes - Resolved the ~5% crash rate issue promised in 25.06

  • Fixed lidar scan direction - Carried over fix from 25.06, now verified

  • Fixed quaternion initialization - Resolved NaN issues in rotation computations

  • Fixed road loss gradient NaN - Improved numerical stability

  • Fixed Bilarf camera resolution bug - Resolved issues with multiple camera resolutions

  • Fixed MCMC NaN covariance - Improved stability in MCMC sampling

  • Fixed gRPC linear_cde support - Added missing proto definitions

  • Fixed calibration issues during rendering - Disabled calibration workaround

  • Fixed actor pose interpolation - Corrected track pose updates in artifacts

Known Issues

  • High memory consumption - Progressive Distillation now requires >192GB RAM (increased from 96GB)

  • Render gRPC limitations - Limited to 25.07 data format, breaks backward compatibility

  • Multi-GPU edge cases - Still crashes when using dataset.aux_data=false (carried from 25.06)

  • Night time performance - Limited quality with active light handling (ongoing issue)

  • PPISP not fully integrated in nRend - Recommended to disable nRend for PPISP workflows

  • Fixer for Tesla not included - Model integration postponed to 25.08

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