Scientific, Verifiable & Physics-Grounded
Film Inversion Technical Manual
No marketing fluff or hollow outlines. NexFilm documentation strictly aligns with the real user interface and optical physics, guiding you from digitization to master delivery.
Core Task Quick Access
Four Pillar Architecture
Getting Started & Camera Scanning
For new users and camera digitizers: hardware selection, Gatekeeper authorization, and 5-minute roll inversion.
- › Physics-grounded optical density negative inversion
- › CRI ≥ 95 backlight selection and ETTR exposure rules
- › The non-negotiable rule of unexposed film base retention
- › Whole-roll batch processing and shared white point anti-divergence
Complete Workbench User Manual
Comprehensive guide aligned 100% with the actual UI: five core views, film area cropping, curves, and master exports.
- › Workspace region roles and filmstrip navigation
- › Automatic film area detection and light panel exclusion
- › Logarithmic Printer Lights additive/subtractive grading
- › 14 built-in Kodak / Ilford darkroom paper LUTs
Color Science & Optical Density Whitepapers
For advanced colorists and technicians: rigorous mathematical derivations of transmission, density, and hardware calibration.
- › Strict separation between transmittance, density, and output domains
- › Five-tier input domain resolution and camera matrix isolation
- › Bounded channel span model (1.15× / 1.35× / 3.0×)
- › Flat-field transmission normalization & DaVinci linear workflows
System Architecture & Contributing
For open-source engineers: Tauri 2 runtime model, WebGL2 fragment shaders, and Rust CPU rendering parity.
- › Zero full-resolution RAW decoding on import with on-demand 16-bit proxies
- › GPU WebGL2 and Rust CPU full-resolution export WYSIWYG contract
- › Cross-platform LibRaw and Rawler dual-backend orchestration
- › Automated regression contract suites and pull request guidelines
Ready to invert your first roll of film?
Download the native NexFilm Engine build to experience a responsive, physics-grounded negative film grading workbench.