The render target time as a numerical value between 1 and 32768. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 17.0.0.0 (17.0.1090.0) 
  Since:  2017 
Syntax
Remarks
 Increase this value to increase render time. 
 Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentOutOfRangeException | When setting this property: The value is not valid RenderTime. | 
| Autodesk.Revit.Exceptions InvalidOperationException | When setting this property: The RenderingQualitySettings does not use custom quality currently. To use custom quality, set RenderingQuality property to RenderingQuality.Custom. |