Choose Edit > Preferences.
Last updated on
May 24, 2023
- Substance 3D home
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- Bakers settings
- Common Parameters
- Ambient Occlusion
- Ambient Occlusion from Mesh
- Bent Normals from Mesh
- Color Map from Mesh
- Convert UV to SVG
- Curvature
- Curvature from Mesh
- Curvature from Mesh (deprecated)
- Height Map from Mesh
- Normal Map from Mesh
- Opacity Mask from Mesh
- Position
- Position map from Mesh
- Thickness Map from Mesh
- Transferred Texture from Mesh
- World Space Direction
- World Space Normals
- Guides
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- Common questions
- How to export the baked maps?
- Is dithering applied to baked textures?
- Should I enable "Compute tangent space per fragment"?
- What are Assbin files?
- What is the bit depth of baked textures?
- What is the difference between the OpenGL and DirectX normal format?
- Why are there strange stretches in my textures after baking or exporting?
- Why is Matching by Name not working with Ambient Occlusion/Thickness?
- Why is my mesh fully black after baking?
- Common issues
- Aliasing on UV Seams
- Baker output is fully black or empty
- Baking failed with Color Map from Mesh
- Black shading cross are visible on the mesh surface
- Mesh parts bleed between each other
- Normal map has strange colorful gradients
- Normal texture looks faceted
- Seams are visible after baking a normal texture
- Seam visible on every face
- Texture baked outside of Substance software looks incorrect
Tangent Space
Substance Bakers can either load the Tangents and Binormals present on the low-poly mesh or recompute them. When recomputing them it is possible to define a custom Tangent Space algorithm (by default it is MikkTSpace).
Tangent Space Plugins List
Substance Painter
In Substance Painter the Tangent Space plugin cannot be changed, it will always be MikkTSpace. However there is a parameter to alter slightly its behavior to make it compatible with other applications:
| Parameter | Compatible Application |
|---|---|
| Compute tangent space per fragment: Disabled | Compatible with xNormal, Unity 5.3 or newer. |
| Compute tangent space per fragment: Enabled | Compatible with Unreal Engine 4, Blender and Unity HDRP workflow. |
Substance Designer
Substance Designer supports the following algorithm:
| Filename | Description |
|---|---|
| mikktspace.dll | MikkTSpace, Tangent Space algorithm based on Morten S. Mikkelsen work. Compatible with xNormal, Unity 5.3 or newer. |
| mikkunrealtspace.dll | MikkTSpace, Tangent Space algorithm based on Morten S. Mikkelsen work. Compatible with Unreal Engine 4, Blender and Unity HDRP workflow. |
| unitytspace.dll | Tangent Space algorithm based on Unity 4. |
Note:
It is possible to write a custom Tangent Space plugin. A header file named tangentspaceplugin.h is available in the installation folder under Substance Designer/SDK/tangentspace and can be used as an interface.
Setting a custom Tangent Space
Substance Painter
Substance Painter does not support custom Tangent Space plugins at the moment. This means that if Tangents and Binormals are not present on the low-poly mesh (used to create the project) they will be recomputed based on the MikkTSpace algorithm.
Substance Designer
To set the tangent space algorithm in Substance Designer follow these steps:
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Click on Projects.
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Navigate to the General tab. Scroll until the section 3D Scenes is visible.
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Click on the three dots (...) to load a custom plugin.
Substance Automation Toolkit
When baking with the Automation Toolkit it is possible to specify the Tangent Space plugin with a specific command line argument:
sbsbaker normal-from-mesh --tangent-space-plugin "C:/Substance Designer/plugins⁄tangentspace⁄mikktspace.dll" ...
