> For the complete documentation index, see [llms.txt](https://docs.ladybug.tools/hb-radiance-primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ladybug.tools/hb-radiance-primer/components/1_modifiers/glass_modifier_3.md).

# Glass Modifier 3

![](https://2572426507-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Ma9X8PomX22wWVDNCoj%2Fuploads%2Fgit-blob-9146a3a1cda6adda9875474e89b7abe46049f90b%2FGlass_Modifier_3.png?alt=media)

![](https://2572426507-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Ma9X8PomX22wWVDNCoj%2Fuploads%2Fgit-blob-8502ede10c292c4f5ffe5fe5cc9152d94d7bca00%2FGlass_Modifier_3.png?alt=media) - [\[source code\]](https://github.com/ladybug-tools/honeybee-grasshopper-radiance/blob/master/honeybee_grasshopper_radiance/src//HB%20Glass%20Modifier%203.py)

Create an glass radiance modifier from a red, green, and blue transmittances

### Inputs

* #### name

Text to set the name for the modifier and to be incorporated into a unique modifier identifier.

* #### r\_trans \[Required]

A number between 0 and 1 for the transmittance of the red channel. (Default: 0).

* #### g\_trans \[Required]

A number between 0 and 1 for the transmittance of the green channel. (Default: 0).

* #### b\_trans \[Required]

A number between 0 and 1 for the transmittance of the blue channel. (Default: 0).

* #### refract

Index of refraction. Typical values are 1.52 for float glass and 1.4 for ETFE. If None, Radiance will default to using 1.52 for glass (Default: None).

### Outputs

* #### modifier

A glass modifier that can be assigned to a Honeybee geometry or Modifier Sets.