Updated documentation for DepthClamp device feature and DepthClipEnab…

…le member of the RasterizerStateDesc struct

Graphics/GraphicsEngine/interface/GraphicsTypes.h

@@ -1678,6 +1678,12 @@ struct DeviceFeatures
     DEVICE_FEATURE_STATE DepthBiasClamp                DEFAULT_INITIALIZER(DEVICE_FEATURE_STATE_DISABLED);
 
     /// Indicates if device supports depth clamping
+    ///
+    /// \remarks    By default polygon faces are clipped against the near and far planes of the view
+    ///             frustum. If depth clipping is disabled in the PSO, the depth of the fragments that
+    ///             would be clipped is clamped to the near/far plane instead of discarding them.
+    ///             If this feature is enabled, the DepthClipEnable member of the RasterizerStateDesc
+    ///             struct can be set to False. Otherwise it must always be set to True.
     DEVICE_FEATURE_STATE DepthClamp                    DEFAULT_INITIALIZER(DEVICE_FEATURE_STATE_DISABLED);
 
     /// Indicates if device supports depth clamping

Graphics/GraphicsEngine/interface/RasterizerState.h

@@ -112,6 +112,13 @@ struct RasterizerStateDesc
 
     /// Enable clipping against near and far clip planes.
     /// Default value: True.
+    ///
+    /// \remarks    By default polygon faces are clipped against the near and far planes of the view
+    ///             frustum. If depth clipping is disabled, the depth of the fragments that would be
+    ///             clipped is clamped to the near/far plane instead of discarding them.
+    ///
+    ///             To check if the device supports depth clamping, use the DepthClamp device feature.
+    ///             If it is not supported, the value of this member must be True.
     Bool      DepthClipEnable       DEFAULT_INITIALIZER(True);
 
     /// Enable scissor-rectangle culling. All pixels outside an active scissor rectangle are culled.