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Root/src/Graphics/States/StencilOperation.cs

#region License
/* FNA - XNA4 Reimplementation for Desktop Platforms
 * Copyright 2009-2016 Ethan Lee and the MonoGame Team
 *
 * Released under the Microsoft Public License.
 * See LICENSE for details.
 */
#endregion
 
namespace Microsoft.Xna.Framework.Graphics
{
    /// <summary>
    /// Defines stencil buffer operations.
    /// </summary>
    public enum StencilOperation
    {
        /// <summary>
        /// Does not update the stencil buffer entry.
        /// </summary>
        Keep,
        /// <summary>
        /// Sets the stencil buffer entry to 0.
        /// </summary>
        Zero,
        /// <summary>
        /// Replaces the stencil buffer entry with a reference value.
        /// </summary>
        Replace,
        /// <summary>
        /// Increments the stencil buffer entry, wrapping to 0 if the new value exceeds the maximum value.
        /// </summary>
        Increment,
        /// <summary>
        /// Decrements the stencil buffer entry, wrapping to the maximum value if the new value is less than 0.
        /// </summary>
        Decrement,
        /// <summary>
        /// Increments the stencil buffer entry, clamping to the maximum value.
        /// </summary>
        IncrementSaturation,
        /// <summary>
        /// Decrements the stencil buffer entry, clamping to 0.
        /// </summary>
        DecrementSaturation,
        /// <summary>
        /// Inverts the bits in the stencil buffer entry.
        /// </summary>
        Invert
    }
}

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