Bipul Mohanto

Bipul Mohanto

Doctoral Researcher@ Foveated Rendering | 3D Graphics Rendering| Global Illumination | Multi-View Rendering | Applied Human Perception | Color Science | Computer Vision

Post Processing in Physically-Based Rendering

less than 1 minute read

Published:

(work in progress…)

Tone Mapping

In Physically Based Rendering (PBR), tone mapping compresses the vast range of light intensities (High Dynamic Range (HDR)) calculated by the renderer into a display friendly range, often the Low Dynamic Range (LDR), ensuring details in both bright highlights and dark shadows remain visible, preventing washed-out or crushed images, and preserving the scene’s intended mood and visual fidelity for human perception (For more, click).

Some of the commonly used Tone Mappers are (see):

  1. Reinhard Global Operator
  2. Photographic Tone Reproduction (Modified Reinhard / Exposure-Based Operators)
  3. Filmic Tone Mapping (Hable / Uncharted 2 Curve)
  4. ACES (Academy Color Encoding System)
  5. Drago and Other Perceptual Methods
  6. Sigmoidal and Custom Parametric Curves

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