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Back Face

Back Face provides options for modifying the base color, emission, and alpha for the backfaces of a mesh.

On 3D models, meshes typically only show it's faces on one side, that being the front-facing side. The back-facing side of the mesh is usually see-through, an effect that you can get when you are looking from inside a model. Shaders can control this behavior, forcing the back-facing side of the mesh to also render if the user desires for whatever reason.

Disable Culling to use this feature!

To use this section, Cull must be set to Off in order for backfaces to be visible. Find this option under Rendering.

Color​

  • Type: Color

Tint color to multiply the backface by.

Texture​

  • Type: Color Texture (sRGB = ON)

Texture to override the backface base color with instead.

Mask​

  • Type: Data Texture (sRGB = OFF)

Texture used to mask the effect of backface color, texture, emission, and alpha modifiers.

Emission Strength​

  • Type: Float, Range: 0.0 - 20.0

How much Emission to add to the backface. Draws from the backface color.

Hue Shift​

  • Type: Checkbox

Enable or Disable Hue Shift for the backface base color.

Color Space​

  • Type: Dropdown, Options: OKLab/HSV

Choice of Color Space to use for the Hue Shift. By default, it will be set to OKLab.

Learn about the difference of Color Spaces as documented here in Color Adjust.

Select or Shift​

  • Type: Dropdown, Options: Hue Select/Hue Shift
    • Default: Hue Shift

This dropdown allows you to select how the Color Adjustment should behave when the Hue Shift is used. By default, this will be set to Hue Shift.

Select or Shift Options
  • Hue Select: Directly applies the selected Hue as an override to the entire Backface.
  • Hue Shift: Only tints the Backface based on the lerped value. This is the default behavior.

Shift​

  • Type: Float, Range: 0.0 - 1.0

How much to shift the backface base color around the hue circle.

This value is circular, and will have the same result at 0 and 1.

Shift Speed​

  • Type: Float

How much to constantly shift the hue with time. A value of 1 will result in a full hue shift cycle every 20 seconds.

Backface Mods​

Detail Intensity​

  • Type: Float, Range: 0.0 - 5.0

Detail Intensity backface multiplier for detail textures in the Details section.

Replace Alpha​

  • Type: Checkbox

Whether to replace the alpha value for the backface with the alpha calculated from the Backface Texture and Alpha settings.

Global Emission Multiplier​

  • Type: Float

Custom Multiplier to limit the Emissions shown on the backface.

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