From 5f46b32616b1457bdb58d972cf5b32fae5e7b9a3 Mon Sep 17 00:00:00 2001
From: vlj <vljn.ovi@gmail.com>
Date: Fri, 5 Jun 2015 23:27:43 +0200
Subject: [PATCH] d3d12: Use instancing to pass constant vertex attribute

Maybe a bit hackish but it works.
---
 rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp b/rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp
index 9a5ea9c234..8e07aab7b4 100644
--- a/rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp
+++ b/rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp
@@ -109,6 +109,8 @@ std::vector<D3D12_INPUT_ELEMENT_DESC> getIALayout(ID3D12Device *device, const st
 			IAElement.InputSlot = (UINT)inputSlot;
 			IAElement.Format = getFormat(vertexData.type - 1, vertexData.size);
 			IAElement.AlignedByteOffset = (UINT)(vertexData.addr - vertexBufferFormat[inputSlot].range.first);
+			IAElement.InputSlotClass = (vertexData.addr > 0) ? D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA : D3D12_INPUT_CLASSIFICATION_PER_INSTANCE_DATA;
+			IAElement.InstanceDataStepRate = (vertexData.addr > 0) ? 0 : 0;
 			result.push_back(IAElement);
 		}
 	}