From a516c2d483759a3c8a429176a66babcd26a61251 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Wed, 28 Jul 2021 13:02:19 +0100
Subject: [PATCH] Disable view instancing on D3D12 for postvs

* It's unclear if this is supposed to be legal or not, and if it is legal then
  how the output is arranged.
---
 renderdoc/driver/d3d12/d3d12_postvs.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/renderdoc/driver/d3d12/d3d12_postvs.cpp b/renderdoc/driver/d3d12/d3d12_postvs.cpp
index 28e7063c3..4a88e3428 100644
--- a/renderdoc/driver/d3d12/d3d12_postvs.cpp
+++ b/renderdoc/driver/d3d12/d3d12_postvs.cpp
@@ -335,6 +335,10 @@ void D3D12Replay::InitPostVSBuffers(uint32_t eventId)
     RDCEraseEl(psoDesc.RTVFormats);
     psoDesc.DSVFormat = DXGI_FORMAT_UNKNOWN;
 
+    // for now disable view instancing, unclear if this is legal but it
+    psoDesc.ViewInstancing.Flags = D3D12_VIEW_INSTANCING_FLAG_NONE;
+    psoDesc.ViewInstancing.ViewInstanceCount = 0;
+
     ID3D12PipelineState *pipe = NULL;
     hr = m_pDevice->CreatePipeState(psoDesc, &pipe);
     if(FAILED(hr))