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 # asset\_preparation::v3::material::OpticVolumeOpticalProperties Struct Reference

 Last update: 16.07.2025 

The optic volume optical properties of a material. [More...](structasset__preparation_1_1v3_1_1material_1_1_optic_volume_optical_properties.xhtml#details)

## <a name="pub-attribs"></a>Public Attributes

google::protobuf::DoubleValue [absorption](structasset__preparation_1_1v3_1_1material_1_1_optic_volume_optical_properties.xhtml#a904e7828524c32fea543cfee5f473523) = 1 google::protobuf::DoubleValue [refractive\_index](structasset__preparation_1_1v3_1_1material_1_1_optic_volume_optical_properties.xhtml#ac3ff747c0bb076a407161f7904f96789) = 2 google::protobuf::DoubleValue [constringency](structasset__preparation_1_1v3_1_1material_1_1_optic_volume_optical_properties.xhtml#a4da81e7a6a7e51beeab2a7b8699b5f86) = 3 <a id="details" name="details"></a>## Detailed Description

The optic volume optical properties of a material.



## Member Data Documentation

<a id="a904e7828524c32fea543cfee5f473523"></a>## [◆ ](#a904e7828524c32fea543cfee5f473523)absorption

 google::protobuf::DoubleValue asset\_preparation::v3::material::OpticVolumeOpticalProperties::absorption = 1

The optical absorption.

Unit: Inverse millimeter (mm^-1)

NoteMust be equal or superior to 0.The default value is 0. 



<a id="ac3ff747c0bb076a407161f7904f96789"></a>## [◆ ](#ac3ff747c0bb076a407161f7904f96789)refractive\_index

 google::protobuf::DoubleValue asset\_preparation::v3::material::OpticVolumeOpticalProperties::refractive\_index = 2

The refractive index.

NoteThe default value is 1.52. 



<a id="a4da81e7a6a7e51beeab2a7b8699b5f86"></a>## [◆ ](#a4da81e7a6a7e51beeab2a7b8699b5f86)constringency

 google::protobuf::DoubleValue asset\_preparation::v3::material::OpticVolumeOpticalProperties::constringency = 3

The constringency.

NoteMust be a double in the range \[20,90\].The default value is 40. 



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The documentation for this struct was generated from the following file:- material\_description.proto