# Commands about Creating Procedural Surfaces [GstarCAD 2025](Help%20System/GSTARCAD/2025/Index.md) → [Commands](Help%20System/GSTARCAD/2025/Commands/(Commands).md) **Commands：** - [CONVTONURBS](Help%20System/GSTARCAD/2025/Commands/CONVTONURBS.md) - [CONVTOSURFACE](Help%20System/GSTARCAD/2025/Commands/CONVTOSURFACE.md) - [CVSHOW](Help%20System/GSTARCAD/2025/Commands/CVSHOW.md) - [DSETTINGS](Help%20System/GSTARCAD/2025/Commands/DSETTINGS.md) - [EXTRUDE](Help%20System/GSTARCAD/2025/Commands/EXTRUDE.md) - [LOFT](Help%20System/GSTARCAD/2025/Commands/LOFT.md) - [PLANESURF](Help%20System/GSTARCAD/2025/Commands/PLANESURF.md) - [REVOLVE](Help%20System/GSTARCAD/2025/Commands/REVOLVE.md) - [SPLINE](Help%20System/GSTARCAD/2025/Commands/SPLINE.md) - [SURFOFFSET](Help%20System/GSTARCAD/2025/Commands/SURFOFFSET.md) - [SWEEP](Help%20System/GSTARCAD/2025/Commands/SWEEP.md) **System Variables：** - [CULLINGOBJ](../System%20Variables/CULLINGOBJ.md) - [CULLINGOBJSELECTION](../System%20Variables/CULLINGOBJSELECTION.md) - [DELOBJ](Help%20System/GSTARCAD/2025/System%20Variables/DELOBJ.md) - [SURFACEASSOCIATIVITYDRAG](Help%20System/GSTARCAD/2025/System%20Variables/SURFACEASSOCIATIVITYDRAG.md) - [SURFACEAUTOTRIM](Help%20System/GSTARCAD/2025/System%20Variables/SURFACEAUTOTRIM.md) --- [Original help](https://www.gstarcad.net/help/GstarCAD_2025_en-US/detail/commandReferences/Commands%20about%20Creating%20Procedural%20Surfaces.html) · © Gstarsoft Co., Ltd.