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Substance 3D Painter

Substance 3D Painter

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      1. Export Issues
        1. My exported opacity map is totally black
        2. Texture dilation or Padding
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        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
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        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
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        3. Editing the Shelf Preferences with Python
      3. Adding saved searches manually
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  12. Scripting and development
    1. Scripts and plugins
      1. Creating a Javascript plugin
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    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 11.0
    4. Version 10.1
    5. Version 10.0
    6. Old versions
      1. Version 9.1
      2. Version 9.0
      3. Version 8.3
      4. Version 8.2
      5. Version 8.1
      6. Version 7.4
      7. Version 7.3
      8. Version 7.2
      9. Version 2021.1 (7.1.0)
      10. Version 2020.2 (6.2.0)
      11. Version 2020.1 (6.1.0)
      12. Version 2019.3
      13. Version 2019.2
      14. Version 2019.1
      15. Version 2018.3
      16. Version 2018.2
      17. Version 2018.1
      18. Version 2017.4
      19. Version 2017.3
      20. Version 2017.2
      21. Version 2017.1
      22. Version 2.6
      23. Version 2.5
      24. Version 2.4
      25. Version 2.3
      26. Version 2.2

Lib SSS - Shader API

lib-sss.glsl

Public Functions: getSSSCoefficients

Import from library

import lib-sampler.glsl

The scalar SSS coefficient texture

//: param auto channel_scattering 
uniform SamplerSparse sss_tex; 
 
//: param auto scene_original_radius 
uniform float sssSceneScale; 
 
//: param custom { 
//:   "label": "Enable", 
//:   "default": true, 
//:   "group": "Subsurface Scattering Parameters", 
//:   "description": "<html><head/><body><p>Enable the Subsurface Scattering. It needs to be activated in the Display Settings and a Scattering channel needs to be present for these parameters to have an effect.</p></body></html>" 
//: } 
uniform bool sssEnabled;

Select whether the light penetrates straight through the material (translucent) or is diffused before starting to scatter (skin).

//: param custom { 
//:   "default": 1, 
//:   "label": "Scattering Type", 
//:   "widget": "combobox", 
//:   "values": { 
//:     "Translucent": 0, 
//:     "Skin": 1 
//:   }, 
//:   "group": "Subsurface Scattering Parameters", 
//:   "description": "<html><head/><body><p>Skin or Translucent/Generic. It needs to be activated in the Display Settings and a Scattering channel needs to be present for these parameters to have an effect.</p></body></html>" 
//: } 
uniform int sssType;

Global scale to the subsurface scattering effect

//: param custom { 
//:   "default": 0.5, 
//:   "label": "Scale", 
//:   "min": 0.01, 
//:   "max": 1.0, 
//:   "group": "Subsurface Scattering Parameters", 
//:   "description": "<html><head/><body><p>Controls the radius/depth of the light absorption in the material. It needs to be activated in the Display Settings and a Scattering channel needs to be present for these parameters to have an effect.</p></body></html>" 
//: } 
uniform float sssScale;

Wavelength dependency of the SSS of the material

//: param custom { 
//:   "default": [0.701, 0.301, 0.305], 
//:   "label": "Color", 
//:   "widget": "color", 
//:   "group": "Subsurface Scattering Parameters", 
//:   "description": "<html><head/><body><p>The color of light when absorbed by the material. It needs to be activated in the Display Settings and a Scattering channel needs to be present for these parameters to have an effect.</p></body></html>" 
//: } 
uniform vec3 sssColor;

Return the material SSS coefficients

vec4 getSSSCoefficients(float scattering) { 
  if (sssEnabled) { 
    vec3 sss = sssScale / sssSceneScale * scattering * sssColor; 
    return vec4(sss, sss == vec3(0.0) ? 0.0 : 1.0); 
  } 
  return vec4(0.0); 
} 
vec4 getSSSCoefficients(SparseCoord coord) { 
  if (sssEnabled) { 
    return getSSSCoefficients(getScattering(sss_tex, coord)); 
  } 
  return vec4(0.0); 
}

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