From 909b465eb18c32fe81a4ff5fa1b4ba21687ee509 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Wed, 29 Aug 2018 20:49:00 +0100
Subject: [PATCH] Disable MSAA when creating PSO for mesh output fetch on D3D12

* This doesn't change anything as we're not rasterizing, but it keeps the D3D
  runtime happy.
---
 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 a524da085..07a86e8b2 100644
--- a/renderdoc/driver/d3d12/d3d12_postvs.cpp
+++ b/renderdoc/driver/d3d12/d3d12_postvs.cpp
@@ -307,6 +307,10 @@ void D3D12Replay::InitPostVSBuffers(uint32_t eventId)
     // render as points
     psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_POINT;
 
+    // disable MSAA
+    psoDesc.SampleDesc.Count = 1;
+    psoDesc.SampleDesc.Quality = 0;
+
     // disable outputs
     RDCEraseEl(psoDesc.RTVFormats);
     psoDesc.DSVFormat = DXGI_FORMAT_UNKNOWN;