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| ArcObjects Help for .NET developers > ArcObjects namespaces > Carto > ESRI.ArcGIS.Carto > Interfaces > IR > IRasterDRAShader Interface (ArcObjects .NET 10.5 SDK) | 
Access to members that allow a DRA shader to process pixel channels.
| Description | ||
|---|---|---|
|  | PercentMax | The percent max. | 
|  | PercentMin | The percent min. | 
|  | StdDevParam | The number of standard deviation. | 
|  | StretchType | The stretch type. |