1>RawTherapee Adds Film Simulation to Its Workflow

Published on January 06, 2026 | Translated from Spanish
Screenshot of the film simulation module in RawTherapee, showing sliders to adjust the tonal curve and grain, next to an example image with an analog effect applied.

RawTherapee Adds Film Simulation to Its Workflow

The RawTherapee raw processing software has integrated a dedicated tool to replicate the aesthetics of traditional photographic emulsions. This module operates on RAW files to build an analog look from the initial processing phase, offering an alternative to superficial filters. ๐ŸŽž๏ธ

How the Emulation Module Works

The tool is based on two fundamental pillars. First, it applies predefined tonal curves that alter contrast and exposure in a non-linear way, mimicking how a specific film recorded highlights and shadows. Second, it generates and overlays a fully customizable grain pattern.

Main Controls Available:
  • Tonal Response Curves: Profiles that replicate the character of classic emulsions, modifying the image's dynamics.
  • Configurable Grain: Independent adjustments for the size, roughness, and chromaticity of the added grain.
  • Intensity Control: A master parameter to dose the overall strength of the applied effect.
This flexibility makes the simulation not just a simple filter, but another layer in RawTherapee's non-destructive processing workflow.

Customizing the Final Effect

Although it includes starting profiles, the module provides deep control. The user can modify every aspect of the simulation, balance color channels separately, and decide how the grain interacts with sharpness.

Advantages of Integrating This Module:
  • Non-Destructive Work: All adjustments are applied as layers, preserving the original RAW file.
  • Precision: Allows meticulous adjustment of the effect to make it feel authentic and not like a digital artifact.
  • Unified Workflow: The simulation is part of the processing environment, avoiding the use of external software.

The Paradox of Analog Detail

Achieving a look that recalls chemical photography now requires mastering multiple digital controls. The tool allows recreating that characteristic grain that previously arose from the physical limitations of the film roll, but through precise adjustment of sliders in an interface. It offers a new level of fidelity for those seeking to give their digital images an analog soul. ๐Ÿงช