diff --git a/rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp b/rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp
index c6b976b491..569e93716a 100644
--- a/rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp
+++ b/rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp
@@ -436,6 +436,7 @@ void D3D12GSRender::setScaleOffset()
 	void *scaleOffsetMap;
 	check(scaleOffsetBuffer->Map(0, nullptr, &scaleOffsetMap));
 	streamToBuffer(scaleOffsetMap, scaleOffsetMat, 16 * sizeof(float));
+	streamToBuffer((char*)scaleOffsetMap + 16 * sizeof(float), &m_alpha_ref, sizeof(float));
 	scaleOffsetBuffer->Unmap(0, nullptr);
 
 	D3D12_CONSTANT_BUFFER_VIEW_DESC constantBufferViewDesc = {};
diff --git a/rpcs3/Emu/RSX/D3D12/D3D12FragmentProgramDecompiler.cpp b/rpcs3/Emu/RSX/D3D12/D3D12FragmentProgramDecompiler.cpp
index ec1032a548..cc51b4450e 100644
--- a/rpcs3/Emu/RSX/D3D12/D3D12FragmentProgramDecompiler.cpp
+++ b/rpcs3/Emu/RSX/D3D12/D3D12FragmentProgramDecompiler.cpp
@@ -34,7 +34,11 @@ std::string D3D12FragmentDecompiler::compareFunction(COMPARE f, const std::strin
 
 void D3D12FragmentDecompiler::insertHeader(std::stringstream & OS)
 {
-	OS << "// Header" << std::endl;
+	OS << "cbuffer SCALE_OFFSET : register(b0)" << std::endl;
+	OS << "{" << std::endl;
+	OS << "	float4x4 scaleOffsetMat;" << std::endl;
+	OS << "	float alphaRef;" << std::endl;
+	OS << "};" << std::endl;
 }
 
 void D3D12FragmentDecompiler::insertIntputs(std::stringstream & OS)
@@ -158,6 +162,7 @@ void D3D12FragmentDecompiler::insertMainEnd(std::stringstream & OS)
 		else if (m_parr.HasParam(PF_PARAM_NONE, "float4", table2[i].second))
 			OS << "	Out." << table2[i].first << " = " << table2[i].second << ";" << std::endl;
 	}
+	OS << "	if (Out.ocol0.a <= alphaRef) discard;" << std::endl;
 	OS << "	return Out;" << std::endl;
 	OS << "}" << std::endl;
 }
diff --git a/rpcs3/Emu/RSX/D3D12/D3D12VertexProgramDecompiler.cpp b/rpcs3/Emu/RSX/D3D12/D3D12VertexProgramDecompiler.cpp
index 6129ca5611..50bf886b32 100644
--- a/rpcs3/Emu/RSX/D3D12/D3D12VertexProgramDecompiler.cpp
+++ b/rpcs3/Emu/RSX/D3D12/D3D12VertexProgramDecompiler.cpp
@@ -26,6 +26,7 @@ void D3D12VertexProgramDecompiler::insertHeader(std::stringstream &OS)
 	OS << "cbuffer SCALE_OFFSET : register(b0)" << std::endl;
 	OS << "{" << std::endl;
 	OS << "	float4x4 scaleOffsetMat;" << std::endl;
+	OS << "	float alphaRef;" << std::endl;
 	OS << "};" << std::endl;
 }