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Creating Neon Fabrics with PBR

This section includes a couple of techniques for creating neon style fabrics using the PBR functionality introduced in 2019 April Edition.

 

Subsurface

To achieve these images, the following settings were used:

  • Specular: 10

  • Roughness: 1

  • Specular Tint: 1

  • Sheen: 1

  • Sheen Tint: 1

  • Subsurface Color: red

  • Subsurface Intensity: 0.75

  • Lighting: Studio Soft

The subsurface channel is useful in obtaining a reflection that is a different color from the diffuse channel. In the images above, the color red was assigned to the subsurface channel and the reflections made more prominent using both sheen and sheen tint.

The specular channel doesn’t generate color; together with roughness it sets the reflection behavior.

 

Self illumination

To achieve these images, the following settings were used:

Specular: 10

Roughness: 1

Specular Tint: 1

Sheen: 0

Sheen Tint: 0

Subsurface Color: white

Subsurface Intensity: 0

Lighting: Streets

The specular value should normally range from 0 to 1, but we extended the range up to 10. This was done partly to achieve backward compatibility with garments prepared in software versions before 2019 April Edition (without PBR). The extended range also can be used, as in the images above, to create the self illumination effect required for neon colored fabrics.

Roughness is increased to 1 (or close to 1) so that the fabric does not look too glossy. Alternatively, you might use a very bright gray map for roughness.

 

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