diff --git a/src/AcDream.App/Rendering/Scene/RenderFrameProduct.cs b/src/AcDream.App/Rendering/Scene/RenderFrameProduct.cs
index 0a3d2569..c7e7a47a 100644
--- a/src/AcDream.App/Rendering/Scene/RenderFrameProduct.cs
+++ b/src/AcDream.App/Rendering/Scene/RenderFrameProduct.cs
@@ -170,17 +170,6 @@ internal readonly struct RenderFrameView
     public ReadOnlySpan<RenderFrameCandidateRange> RouteRanges =>
         Arena.RouteRanges;
 
-    public PortalVisibilityFrame? PortalFrame => Arena.PortalFrame;
-
-    public ClipFrameAssembly? ClipAssembly => Arena.ClipAssembly;
-
-    /// <summary>
-    /// Exact portal-view cones captured by the retail frame walk for each
-    /// building look-in turn. The packed dispatcher consumes these at
-    /// per-GfxObj granularity, matching RenderDeviceD3D::DrawMesh.
-    /// </summary>
-    public IWalkLookInViewSource? WalkLookInViews => Arena.WalkLookInViews;
-
     public RenderFrameDiagnosticCounts DiagnosticCounts =>
         Arena.DiagnosticCounts;
 
@@ -251,12 +240,6 @@ internal sealed class RenderFrameArena
 
     public ulong FrameSequence { get; private set; }
 
-    public PortalVisibilityFrame? PortalFrame { get; private set; }
-
-    public ClipFrameAssembly? ClipAssembly { get; private set; }
-
-    public IWalkLookInViewSource? WalkLookInViews { get; private set; }
-
     public RenderSceneDigest SourceDigest { get; private set; }
 
     public RenderFrameDiagnosticCounts DiagnosticCounts =>
@@ -336,9 +319,6 @@ internal sealed class RenderFrameArena
         _routeRangeCount = 0;
         _opaqueClassificationCount = 0;
         _alphaClassificationCount = 0;
-        PortalFrame = null;
-        ClipAssembly = null;
-        WalkLookInViews = null;
         SourceDigest = default;
         _sourceDigestSet = false;
         Generation = generation;
@@ -349,18 +329,6 @@ internal sealed class RenderFrameArena
         return _epoch;
     }
 
-    internal void SetBorrowedProducts(
-        ulong epoch,
-        PortalVisibilityFrame? portalFrame,
-        ClipFrameAssembly? clipAssembly,
-        IWalkLookInViewSource? walkLookInViews)
-    {
-        EnsureBuilding(epoch);
-        PortalFrame = portalFrame;
-        ClipAssembly = clipAssembly;
-        WalkLookInViews = walkLookInViews;
-    }
-
     internal void SetSourceDigest(ulong epoch, in RenderSceneDigest digest)
     {
         EnsureBuilding(epoch);
@@ -560,9 +528,6 @@ internal sealed class RenderFrameArena
     {
         EnsureBuilding(epoch);
         ClearReferenceStorage();
-        PortalFrame = null;
-        ClipAssembly = null;
-        WalkLookInViews = null;
         SourceDigest = default;
         _sourceDigestSet = false;
         _state = ArenaState.Available;
@@ -667,16 +632,6 @@ internal readonly struct RenderFrameWriter
         _epoch = epoch;
     }
 
-    public void SetBorrowedProducts(
-        PortalVisibilityFrame? portalFrame,
-        ClipFrameAssembly? clipAssembly,
-        IWalkLookInViewSource? walkLookInViews = null) =>
-        Arena.SetBorrowedProducts(
-            _epoch,
-            portalFrame,
-            clipAssembly,
-            walkLookInViews);
-
     public void SetSourceDigest(in RenderSceneDigest digest) =>
         Arena.SetSourceDigest(_epoch, in digest);