# SKYSTATUS System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [S](Help%20System/GSTARCAD/2021/System%20Variables/S/(S).md) **Function Description:** The SKYSTATUS system variable is used to determine whether the sky illumination is computed when rendering. | | | | --- | --- | | Type | Integer | | Saved in | Drawing | | Initial value | 0 | | Range | 0,1,2 | This system variable has no effect on viewport illumination or viewport background. It only makes sky available when collecting light source for rendering. **System Variable Value:** **0:** turn off sky illumination **1:**sky background **2:** sky background and illumination --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/S/SKYSTATUS%20System%20Variable--df8717ef7710.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/S/SKYSTATUS%20System%20Variable--df8717ef7710.md) · [GstarCAD 2018](../../../2018/System%20Variables/S/SKYSTATUS%20System%20Variable--df8717ef7710.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/S/SKYSTATUS%20System%20Variable--df8717ef7710.md) · [GstarCAD 2020](../../../2020/System%20Variables/S/SKYSTATUS%20System%20Variable--df8717ef7710.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/S/SKYSTATUS%20System%20Variable--df8717ef7710.md)