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Tone Mapping | Substance 3D Painter

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Substance 3D Painter

Substance 3D Painter

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  1. Substance 3D home
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  3. Getting Started
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    3. System requirements
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    5. Export
      1. Export overview
      2. Export window
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        3. Output templates
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      3. Export presets
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        2. Predefined presets
          1. Predefined Presets
          2. USD PBR Metal Roughness Preset
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        3. Creating export presets
    6. Glossary
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  4. Interface
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    11. Shader settings
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    12. Texture Set
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  5. Painting
    1. Painting overview
    2. Tool list
      1. Paint brush
      2. Eraser
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      4. Polygon fill
      5. Smudge tool
      6. Clone Tool
      7. Quick mask
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    3. Straight line   
    4. Lazy mouse 
    5. Symmetry
      1. Symmetry overview
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    6. Fill projections
      1. Fill projections overview
      2. Fill (match per UV Tile)
      3. UV projection
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      9. UV set to UV set projection
    7. Presets
      1. Presets overview
      2. Creating and saving presets
      3. Creating particles presets
        1. Creating particles overview
        2. Installing the particle editor
        3. Overview of the particle editor
        4. Creating a new particle script
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        1. Photoshop brush presets overview
        2. Exporting Brush Presets from Photoshop
        3. Importing Photoshop Brush Presets
        4. Photoshop Brush Parameters Compatibility
    8. Dynamic strokes
      1. Dynamic strokes overview
      2. Enabling Dynamic Stroke feature
      3. Dynamic Stroke Performances
      4. Creating custom Dynamic Strokes
    9. Advanced channel painting
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      3. Flow Map
      4. Height Map
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  6. Effects
    1. Effects overview
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  7. Baking
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  8. Content
    1. Creating custom effects
      1. Creating custom effects overview
      2. Generic filter
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      4. Generators
      5. Mesh map
      6. Mesh based input
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    2. Importing assets
      1. Adding resources via drag and drop
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      4. Receiving assets from other Substance 3D applications
  9. Features
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    4. Subsurface Scattering
      1. Subsurface Scattering overview
      2. Enabling Subsurface in a Project
      3. Subsurface Parameters
      4. Subsurface Material Type
    5. Dynamic Material Layering
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    7. UV Tiles
      1. UV Tiles overview
      2. Image Sequence
    8. Color Management
      1. Color management overview
      2. Color management with Adobe ACE - ICC
      3. Color management with OpenColorIO
    9. Post Processing
      1. Post Processing overview
      2. Color correction
      3. Depth of Field
      4. Glare
      5. Lens Distortion
      6. Tone Mapping
      7. Vignette
      8. Color Profile
    10. Iray Renderer
      1. Iray Renderer overview
      2. Iray Settings
      3. Viewer and MDL Settings
    11. Plugins
      1. Plugins overview
      2. Autosave
      3. Resources Updater
    12. Sparse Virtual Textures
    13. Custom Shaders
    14. SpaceMouse® by 3Dconnexion
    15. Universal Scene Description (USD)
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  10. Technical Support
    1. Performance Guidelines
      1. Performances guidelines overview
      2. Conflicts and background applications
      3. Mesh and UV setup
      4. GPU Drivers
      5. NVIDIA Drivers Settings
      6. GPU VRAM amount and bandwidth
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      8. Texture Sets amount
      9. Layer management
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      11. Substance filters and materials
      12. Viewport display
    2. Configuring Pens and Tablets
    3. Exporting the log file
    4. Exporting a DXDiag
    5. Technical issues
      1. GPU Issues
        1. Crash when working with overclocked GPU
        2. Forcing the external GPU on Mac OS
        3. GPU drivers compatibility
        4. GPU drivers crash with long computations (TDR crash)
        5. GPU has outdated drivers
        6. GPU is not recognized
        7. GPU is not recognized and is mentionned as GDI Generic
        8. Issues with Nvidia GPUs on recent Mac OS versions
        9. Multi/Bi-GPU
        10. Running on integrated GPU
        11. Painter doesn't start on the right GPU
      2. Startup Issues
        1. Application failed to start because of Qt
        2. Crash or freeze during startup
        3. Software conflicts
      3. Rendering Issues
        1. Artifacts and glitches on Mac OS with Custom GPUs
        2. Blocky artifacts appear on textures in the viewport
        3. Mesh appears pink in the viewport
        4. Mesh flash to white when moving camera
        5. Some HDPI scaling values are not working
      4. Stability Issues
        1. Crash during export
        2. Crash when opening or saving a file
        3. Crash while baking
        4. Crash with low virtual memory
        5. Windows Blue Screens
      5. Miscellaneous Issues
        1. Corrupted texture error message
        2. Shelf resources are gone after 7.2 update
        3. Error there is no disk in the drive
        4. Error with missing api-ms-crt dll
        5. Impossible to drag and drop files into the shelf
        6. Impossible to use the ALT keyboard shortcut on Linux
        7. Assets (or shelf) previews are empty
    6. Workflow Issues
      1. Export Issues
        1. My exported opacity map is totally black
        2. Texture dilation or Padding
      2. Tools Issues
        1. Normal map looks incorrect when loaded in layer or tool properties
        2. Paint Tool bleeds on other UV islands
      3. Project Issues
        1. A project has been processed as a text file and is now corrupted
        2. Loading files from a network
        3. Preserve brush strokes setting stays disabled
        4. Projects are really big
      4. Library Issues
        1. Thumbnails in the shelf look incorrect
        2. Error when importing a Font
      5. Viewport Issues
        1. Mesh faces disappear when looking at them from behind
        2. Viewports and textures are blurry or lack sharpness
      6. Plugins Issues
        1. Substance Source plugin doesn't load
      7. License Issues
        1. Maintenance is expired dialog on startup
  11. Pipeline and integration
    1. Installation and preferences
      1. Preferences and application data location
      2. Automated installation
      3. Retrieving the installation path
    2. Configuration
      1. Command lines
      2. Environment variables
      3. Firewall Configuration
      4. Querying Current Software Version
      5. Remote Desktop
    3. Resource management
      1. Shelf and Assets location
      2. Resource paths
        1. Adding resource paths by editing preferences manually
        2. Editing resource paths manually
        3. Editing the Shelf Preferences with Python
      3. Adding saved searches manually
      4. Preferences and content migration
      5. Excluding resources in a resource path
  12. Scripting and development
    1. Scripts and plugins
      1. Creating a Javascript plugin
      2. Remote control with scripting
    2. Shader API Reference
      1. Shader API overview
      2. Changelog - Shader API
      3. Libraries - Shader API
        1. Lib Alpha - Shader API
        2. Lib Bayer - Shader API
        3. Lib Defines - Shader API
        4. Lib Emissive - Shader API
        5. Lib Env - Shader API
        6. Lib Normal - Shader API
        7. Lib PBR - Shader API
        8. Lib PBR Aniso - Shader API
        9. Lib Pom - Shader API
        10. Lib Random - Shader API
        11. Lib Sampler - Shader API
        12. Lib Sparse - Shader API
        13. Lib SSS - Shader API
        14. Lib Utils - Shader API
        15. Lib Vectors - Shader API
      4. Parameters - Shader API
        1. All Custom Params - Shader API
        2. All Engine Params - Shader API
        3. All Rendering States Params - Shader API
        4. Layering Bind Materials - Shader API
        5. Layering Declare Stacks - Shader API
      5. Shaders - Shader API
        1. PBR Material Layering - Shader API
        2. PBR Metal Rough - Shader API
        3. Pixelated - Shader API
        4. Surface Shader - Shader API
        5. Toon - Shader API
  13. Release notes
    1. Release notes overview
    2. All Changes
    3. Version 10.1
    4. Version 10.0
    5. Version 9.1
    6. Old versions
      1. Version 9.0
      2. Version 8.3
      3. Version 8.2
      4. Version 8.1
      5. Version 7.4
      6. Version 7.3
      7. Version 7.2
      8. Version 2021.1 (7.1.0)
      9. Version 2020.2 (6.2.0)
      10. Version 2020.1 (6.1.0)
      11. Version 2019.3
      12. Version 2019.2
      13. Version 2019.1
      14. Version 2018.3
      15. Version 2018.2
      16. Version 2018.1
      17. Version 2017.4
      18. Version 2017.3
      19. Version 2017.2
      20. Version 2017.1
      21. Version 2.6
      22. Version 2.5
      23. Version 2.4
      24. Version 2.3
      25. Version 2.2

Tone Mapping

The Tone Mapping parameters allow to control how the colors will be scaled to be displayed on the screen. Those settings can be useful to redistribute colors because of their wide range of values (which can exceed what the current screen is capable of displaying).

Note:

Substance 3D Painter outputs HDR (High Dynamic Range) colors (in Linear Gamma space), but most screens only allow to visualize LDR (Low Dynamic Range) colors. In order to map the HDR range to the LDR range, a conversion has to be done. This is the principle of the tone mapping.

Setting

Description

Exposure

Scales the HDR space rendering results before any glare effects are applied or tone mapping takes place.

Gamma

This is the gamma value for gamma correction.

Function

Function to use to map the HDR range to the LDR range.
Available functions are:

  • Auto : The tone map function is selected automatically. Default is Sensitometric .
  • Linear : The output color is not clamped to 0 to 1 for this type only. This is optimal for when implementing some effect in the HDR space on the application side after the applying of the effects.
    We do not recommend this unless you have some specific reason for using it, because the high luminance components will be completely lost and blown out highlights will occur if linear mapping is used as the final screen output as is.
  • LinearSat : This is almost the same as Linear , except that the output color is clamped. Also, glare synthesis is a little smoother than Linear .
  • Sensitometric : Default function when scene rendering is performed in the HDR space.
  • Reinhard : This results in mapping that is more gradual than Sensitometric , and contrast that is slightly low. Accordingly, it causes the resolution of the high luminance components to become high, and stronger reproduction of the luminance variations in the bright portions.
  • ReinhardLum : Type for implementing the Reinhard tone map with the luminance as the reference and keeping the original saturation (vividness: RGB ratio). Maps only the luminance information to the LDR space and then reproduces the original saturation. The saturation in the HDR space is also kept after tone mapping.
  • Log : This results in mapping that is even more gradual than Reinhard , and contrast that is low. It causes the resolution of the high luminance components to become high, and the strongest reproduction of the luminance variations in the bright portions.
  • LogLum : Type for implementing the tone map of the logarithmic space with the luminance as the reference and keeping the original saturation (vividness: RGB ratio). This maps only the luminance information to the logarithmic space and then reproduces the original saturation. The saturation in the HDR space is also kept after tone mapping.

Mapping Factor

This controls the maximum level of the luminance (brightness) in HDR space that is mapped to the final LDR space in the tone mapping process. Colors brighter than the specified HDR space luminance cannot be represented in LDR space, resulting in blown out highlights. In concrete terms, this value is the luminance (after exposure scaling) in HDR space that maps to the maximum luminance value (1.0) in LDR space. In HDR rendering mode, the lower this value is, the higher the contrast and the greater the likelihood of blown out highlights. Conversely, specifying higher values results in lower contrast and decreases the likelihood of blown out highlights. In LDR rendering mode, when a remapping to HDR space takes place in order to apply an effect, the luminance range is expanded up to the value specified in Mapping Factor . Conversely, the Mapping Factor luminance is mapped to the maximum LDR luminance during tone mapping.

In other words, this specifies the dynamic range scaling factor applied to the LDR rendering results for the application of effects. Setting this to a high value emphasizes bright regions in effects.

Note:

This setting will have no effect (it will be ignored) if the function is set to any of the following in HDR rendering mode: Linear , LinearSat or Sensitometric .

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