diff --git a/renderdoc/driver/d3d12/d3d12_command_list_wrap.cpp b/renderdoc/driver/d3d12/d3d12_command_list_wrap.cpp
index bd25d55eb..acfc0bcdd 100644
--- a/renderdoc/driver/d3d12/d3d12_command_list_wrap.cpp
+++ b/renderdoc/driver/d3d12/d3d12_command_list_wrap.cpp
@@ -2825,11 +2825,49 @@ void WrappedID3D12GraphicsCommandList::ClearUnorderedAccessViewFloat(
   }
 }
 
+bool WrappedID3D12GraphicsCommandList::Serialise_DiscardResource(ID3D12Resource *pResource,
+                                                                 const D3D12_DISCARD_REGION *pRegion)
+{
+  SERIALISE_ELEMENT(ResourceId, CommandList, GetResourceID());
+  SERIALISE_ELEMENT(ResourceId, res, GetResID(pResource));
+  SERIALISE_ELEMENT(BOOL, HasRegion, pRegion != NULL);
+  SERIALISE_ELEMENT_OPT(D3D12_DISCARD_REGION, region, *pRegion, HasRegion);
+
+  if(m_State < WRITING)
+    m_Cmd->m_LastCmdListID = CommandList;
+
+  if(m_State == EXECUTING)
+  {
+    pResource = GetResourceManager()->GetLiveAs<ID3D12Resource>(res);
+
+    if(m_Cmd->ShouldRerecordCmd(CommandList) && m_Cmd->InRerecordRange(CommandList))
+    {
+      Unwrap(m_Cmd->RerecordCmdList(CommandList))->DiscardResource(pResource, HasRegion ? &region : NULL);
+    }
+  }
+  else if(m_State == READING)
+  {
+    pResource = GetResourceManager()->GetLiveAs<ID3D12Resource>(res);
+
+    GetList(CommandList)->DiscardResource(pResource, HasRegion ? &region : NULL);
+  }
+
+  return true;
+}
+
 void WrappedID3D12GraphicsCommandList::DiscardResource(ID3D12Resource *pResource,
                                                        const D3D12_DISCARD_REGION *pRegion)
 {
-  D3D12NOTIMP(__PRETTY_FUNCTION_SIGNATURE__);
   m_pReal->DiscardResource(Unwrap(pResource), pRegion);
+
+  if(m_State >= WRITING)
+  {
+    SCOPED_SERIALISE_CONTEXT(DISCARD_RESOURCE);
+    Serialise_DiscardResource(pResource, pRegion);
+
+    m_ListRecord->AddChunk(scope.Get());
+    m_ListRecord->MarkResourceFrameReferenced(GetResID(pResource), eFrameRef_Write);
+  }
 }
 
 #pragma endregion Clears
diff --git a/renderdoc/driver/d3d12/d3d12_commands.cpp b/renderdoc/driver/d3d12/d3d12_commands.cpp
index 3b37001b8..fed7be6b6 100644
--- a/renderdoc/driver/d3d12/d3d12_commands.cpp
+++ b/renderdoc/driver/d3d12/d3d12_commands.cpp
@@ -296,6 +296,7 @@ void WrappedID3D12CommandQueue::ProcessChunk(uint64_t offset, D3D12ChunkType chu
       m_ReplayList->Serialise_ClearUnorderedAccessViewFloat(
           D3D12_GPU_DESCRIPTOR_HANDLE(), D3D12_CPU_DESCRIPTOR_HANDLE(), NULL, NULL, 0, NULL);
       break;
+    case DISCARD_RESOURCE: m_ReplayList->Serialise_DiscardResource(NULL, NULL); break;
 
     case SET_TOPOLOGY:
       m_ReplayList->Serialise_IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_UNDEFINED);
diff --git a/renderdoc/driver/d3d12/d3d12_common.cpp b/renderdoc/driver/d3d12/d3d12_common.cpp
index 15f676992..de981a35e 100644
--- a/renderdoc/driver/d3d12/d3d12_common.cpp
+++ b/renderdoc/driver/d3d12/d3d12_common.cpp
@@ -1021,6 +1021,17 @@ void Serialiser::Serialise(const char *name, D3D12_TEXTURE_COPY_LOCATION &el)
   }
 }
 
+template <>
+void Serialiser::Serialise(const char *name, D3D12_DISCARD_REGION &el)
+{
+  ScopedContext scope(this, name, "D3D12_DISCARD_REGION", 0, true);
+
+  Serialise("FirstSubresource", el.FirstSubresource);
+  Serialise("NumSubresources", el.NumSubresources);
+
+  SerialiseComplexArray("pRects", (D3D12_RECT *&)el.pRects, el.NumRects);
+}
+
 template <>
 void Serialiser::Serialise(const char *name, D3D12_SAMPLER_DESC &el)
 {
diff --git a/renderdoc/driver/d3d12/d3d12_common.h b/renderdoc/driver/d3d12/d3d12_common.h
index d1b383fdb..430e0e3d8 100644
--- a/renderdoc/driver/d3d12/d3d12_common.h
+++ b/renderdoc/driver/d3d12/d3d12_common.h
@@ -204,6 +204,8 @@ template <>
 void Serialiser::Serialise(const char *name, D3D12_CLEAR_VALUE &el);
 template <>
 void Serialiser::Serialise(const char *name, D3D12_TEXTURE_COPY_LOCATION &el);
+template <>
+void Serialiser::Serialise(const char *name, D3D12_DISCARD_REGION &el);
 
 struct D3D12Descriptor;
 template <>
@@ -266,6 +268,7 @@ void Serialiser::Serialise(const char *name, D3D12Descriptor &el);
   D3D12_CHUNK_MACRO(CLEAR_DSV, "ID3D12GraphicsCommandList::ClearDepthStencilView")                 \
   D3D12_CHUNK_MACRO(CLEAR_UAV_INT, "ID3D12GraphicsCommandList::ClearUnorderedAccessViewUint")      \
   D3D12_CHUNK_MACRO(CLEAR_UAV_FLOAT, "ID3D12GraphicsCommandList::ClearUnorderedAccessViewFloat")   \
+  D3D12_CHUNK_MACRO(DISCARD_RESOURCE, "ID3D12GraphicsCommandList::DiscardResource")                \
                                                                                                    \
   D3D12_CHUNK_MACRO(SET_TOPOLOGY, "ID3D12GraphicsCommandList::IASetPrimitiveTopology")             \
   D3D12_CHUNK_MACRO(SET_IBUFFER, "ID3D12GraphicsCommandList::IASetIndexBuffer")                    \