diff --git a/DDrawCompat/Config/Settings/DisplayFilter.cpp b/DDrawCompat/Config/Settings/DisplayFilter.cpp
index c215530..6c1e0dd 100644
--- a/DDrawCompat/Config/Settings/DisplayFilter.cpp
+++ b/DDrawCompat/Config/Settings/DisplayFilter.cpp
@@ -5,17 +5,25 @@ namespace Config
 	namespace Settings
 	{
 		DisplayFilter::DisplayFilter()
-			: MappedSetting("DisplayFilter", "bilinear", { {"point", POINT}, {"bilinear", BILINEAR} })
+			: MappedSetting("DisplayFilter", "bilinear", {
+				{"point", POINT},
+				{"bilinear", BILINEAR},
+				{"lanczos", LANCZOS},
+				})
 		{
 		}
 
 		Setting::ParamInfo DisplayFilter::getParamInfo() const
 		{
-			if (BILINEAR == m_value)
+			switch (m_value)
 			{
+			case BILINEAR:
 				return { "Blur", 0, 100, 0, m_param };
+			case LANCZOS:
+				return { "Lobes", 2, 4, 2, m_param };
+			default:
+				return {};
 			}
-			return {};
 		}
 	}
 }
diff --git a/DDrawCompat/Config/Settings/DisplayFilter.h b/DDrawCompat/Config/Settings/DisplayFilter.h
index 342d059..e6f8cdb 100644
--- a/DDrawCompat/Config/Settings/DisplayFilter.h
+++ b/DDrawCompat/Config/Settings/DisplayFilter.h
@@ -11,6 +11,7 @@ namespace Config
 		public:
 			static const UINT POINT = 0;
 			static const UINT BILINEAR = 1;
+			static const UINT LANCZOS = 2;
 
 			DisplayFilter();
 
diff --git a/DDrawCompat/D3dDdi/Device.h b/DDrawCompat/D3dDdi/Device.h
index cbd060a..efb4d22 100644
--- a/DDrawCompat/D3dDdi/Device.h
+++ b/DDrawCompat/D3dDdi/Device.h
@@ -12,6 +12,7 @@
 #include <D3dDdi/DeviceState.h>
 #include <D3dDdi/DrawPrimitive.h>
 #include <D3dDdi/ShaderBlitter.h>
+#include <D3dDdi/SurfaceRepository.h>
 
 namespace D3dDdi
 {
@@ -56,6 +57,7 @@ namespace D3dDdi
 		DrawPrimitive& getDrawPrimitive() { return m_drawPrimitive; }
 		const D3DDDI_DEVICEFUNCS& getOrigVtable() const { return m_origVtable; }
 		RGBQUAD* getPalette(UINT paletteHandle) { return m_palettes[paletteHandle].data(); }
+		SurfaceRepository& getRepo() const { return SurfaceRepository::get(m_adapter); }
 		Resource* getResource(HANDLE resource);
 		DeviceState& getState() { return m_state; }
 		ShaderBlitter& getShaderBlitter() { return m_shaderBlitter; }
diff --git a/DDrawCompat/D3dDdi/DeviceState.cpp b/DDrawCompat/D3dDdi/DeviceState.cpp
index 1fd61b7..d345a6d 100644
--- a/DDrawCompat/D3dDdi/DeviceState.cpp
+++ b/DDrawCompat/D3dDdi/DeviceState.cpp
@@ -48,6 +48,20 @@ namespace D3dDdi
 			m_state.m_device, &m_data, &m_state.m_pixelShaderConst[m_data.Register][0]);
 	}
 
+	DeviceState::TempPixelShaderConstI::TempPixelShaderConstI(
+		DeviceState& state, const D3DDDIARG_SETPIXELSHADERCONSTI& data, const ShaderConstI* registers)
+		: m_state(state)
+		, m_data(data)
+	{
+		state.m_device.getOrigVtable().pfnSetPixelShaderConstI(state.m_device, &data, &registers[0][0]);
+	}
+
+	DeviceState::TempPixelShaderConstI::~TempPixelShaderConstI()
+	{
+		m_state.m_device.getOrigVtable().pfnSetPixelShaderConstI(
+			m_state.m_device, &m_data, &m_state.m_pixelShaderConstI[m_data.Register][0]);
+	}
+
 	DeviceState::DeviceState(Device& device)
 		: m_device(device)
 		, m_app{}
diff --git a/DDrawCompat/D3dDdi/DeviceState.h b/DDrawCompat/D3dDdi/DeviceState.h
index d098e26..d2737a8 100644
--- a/DDrawCompat/D3dDdi/DeviceState.h
+++ b/DDrawCompat/D3dDdi/DeviceState.h
@@ -59,6 +59,17 @@ namespace D3dDdi
 			D3DDDIARG_SETPIXELSHADERCONST m_data;
 		};
 
+		class TempPixelShaderConstI
+		{
+		public:
+			TempPixelShaderConstI(DeviceState& state, const D3DDDIARG_SETPIXELSHADERCONSTI& data, const ShaderConstI* registers);
+			~TempPixelShaderConstI();
+
+		private:
+			DeviceState& m_state;
+			D3DDDIARG_SETPIXELSHADERCONSTI m_data;
+		};
+
 		class TempStateLock
 		{
 		public:
diff --git a/DDrawCompat/D3dDdi/Resource.cpp b/DDrawCompat/D3dDdi/Resource.cpp
index dd4cc19..d817600 100644
--- a/DDrawCompat/D3dDdi/Resource.cpp
+++ b/DDrawCompat/D3dDdi/Resource.cpp
@@ -8,7 +8,6 @@
 #include <Config/Settings/BltFilter.h>
 #include <Config/Settings/ColorKeyMethod.h>
 #include <Config/Settings/DepthFormat.h>
-#include <Config/Settings/DisplayFilter.h>
 #include <Config/Settings/RenderColorDepth.h>
 #include <Config/Settings/ResolutionScaleFilter.h>
 #include <D3dDdi/Adapter.h>
@@ -212,7 +211,7 @@ namespace D3dDdi
 
 		if (m_msaaSurface.surface || m_msaaResolvedSurface.surface || m_lockRefSurface.surface)
 		{
-			auto& repo = SurfaceRepository::get(m_device.getAdapter());
+			auto& repo = m_device.getRepo();
 			repo.release(m_msaaSurface);
 			repo.release(m_msaaResolvedSurface);
 			repo.release(m_lockRefSurface);
@@ -669,11 +668,12 @@ namespace D3dDdi
 
 	void Resource::downscale(Resource*& rt, LONG& srcWidth, LONG& srcHeight, LONG dstWidth, LONG dstHeight)
 	{
+		auto& repo = m_device.getRepo();
 		while (srcWidth > 2 * dstWidth || srcHeight > 2 * dstHeight)
 		{
 			const LONG newSrcWidth = std::max(dstWidth, (srcWidth + 1) / 2);
 			const LONG newSrcHeight = std::max(dstHeight, (srcHeight + 1) / 2);
-			auto& nextRt = getNextRenderTarget(rt, newSrcWidth, newSrcHeight);
+			auto& nextRt = repo.getNextRenderTarget(newSrcWidth, newSrcHeight, rt);
 			if (!nextRt.resource)
 			{
 				return;
@@ -808,17 +808,6 @@ namespace D3dDdi
 		return { D3DDDIMULTISAMPLE_NONE, 0 };
 	}
 
-	const SurfaceRepository::Surface& Resource::getNextRenderTarget(Resource* currentRt, DWORD width, DWORD height)
-	{
-		auto& repo = SurfaceRepository::get(m_device.getAdapter());
-		auto nextRt = &repo.getTempRenderTarget(width, height, 0);
-		if (nextRt->resource == currentRt)
-		{
-			nextRt = &repo.getTempRenderTarget(width, height, 1);
-		}
-		return *nextRt;
-	}
-
 	RECT Resource::getRect(UINT subResourceIndex) const
 	{
 		const auto& si = m_fixedData.pSurfList[subResourceIndex];
@@ -855,8 +844,7 @@ namespace D3dDdi
 			const RECT srcRect = { 0, 0, static_cast<LONG>(si.Width), static_cast<LONG>(si.Height) };
 			if (!m_fixedData.Flags.Texture)
 			{
-				auto& repo = SurfaceRepository::get(m_device.getAdapter());
-				auto& texture = repo.getTempTexture(si.Width, si.Height, m_fixedData.Format);
+				auto& texture = m_device.getRepo().getTempTexture(si.Width, si.Height, m_fixedData.Format);
 				if (!texture.resource)
 				{
 					return;
@@ -1193,8 +1181,8 @@ namespace D3dDdi
 
 		if (!m_colorKeyedSurface.surface)
 		{
-			auto& repo = SurfaceRepository::get(m_device.getAdapter());
-			repo.getSurface(m_colorKeyedSurface, m_fixedData.pSurfList[0].Width, m_fixedData.pSurfList[0].Height,
+			m_device.getRepo().getSurface(m_colorKeyedSurface,
+				m_fixedData.pSurfList[0].Width, m_fixedData.pSurfList[0].Height,
 				D3DDDIFMT_A8R8G8B8, DDSCAPS_TEXTURE | DDSCAPS_3DDEVICE | DDSCAPS_VIDEOMEMORY |
 				(m_fixedData.MipLevels > 1 ? DDSCAPS_MIPMAP : 0),
 				m_fixedData.SurfCount,
@@ -1244,8 +1232,8 @@ namespace D3dDdi
 			data.DstRect = g_presentationRect;
 		}
 
-		auto& repo = SurfaceRepository::get(m_device.getAdapter());
-		const auto& rtSurface = repo.getTempRenderTarget(srcWidth, srcHeight);
+		auto& repo = m_device.getRepo();
+		const auto& rtSurface = repo.getNextRenderTarget(srcWidth, srcHeight);
 		auto rt = rtSurface.resource ? rtSurface.resource : this;
 		auto rtIndex = rtSurface.resource ? 0 : data.DstSubResourceIndex;
 		auto rtRect = rtSurface.resource ? data.SrcRect : data.DstRect;
@@ -1300,39 +1288,7 @@ namespace D3dDdi
 		const LONG dstHeight = data.DstRect.bottom - data.DstRect.top;
 		downscale(rt, data.SrcRect.right, data.SrcRect.bottom, dstWidth, dstHeight);
 
-		const SurfaceRepository::Surface* rtGamma = nullptr;
-		if (!ShaderBlitter::isGammaRampDefault() &&
-			SurfaceRepository::get(m_device.getAdapter()).getGammaRampTexture())
-		{
-			rtGamma = &getNextRenderTarget(rt, dstWidth, dstHeight);
-		}
-		const bool useGamma = rtGamma && rtGamma->resource;
-		auto& rtNext = useGamma ? *rtGamma->resource : *this;
-		auto rtNextIndex = useGamma ? 0 : data.DstSubResourceIndex;
-		auto rtNextRect = useGamma ? RECT{ 0, 0, dstWidth, dstHeight } : data.DstRect;
-
-		if (Config::Settings::DisplayFilter::BILINEAR == Config::displayFilter.get())
-		{
-			m_device.getShaderBlitter().genBilinearBlt(rtNext, rtNextIndex, rtNextRect,
-				*rt, data.SrcRect, Config::displayFilter.getParam());
-		}
-		else
-		{
-			D3DDDIARG_BLT blt = {};
-			blt.hSrcResource = *rt;
-			blt.SrcSubResourceIndex = 0;
-			blt.SrcRect = data.SrcRect;
-			blt.hDstResource = rtNext;
-			blt.DstSubResourceIndex = rtNextIndex;
-			blt.DstRect = rtNextRect;
-			blt.Flags.Point = 1;
-			m_device.getOrigVtable().pfnBlt(m_device, &blt);
-		}
-
-		if (useGamma)
-		{
-			m_device.getShaderBlitter().gammaBlt(*this, data.DstSubResourceIndex, data.DstRect, rtNext, rtNextRect);
-		}
+		m_device.getShaderBlitter().displayBlt(*this, data.DstSubResourceIndex, data.DstRect, *rt, 0, data.SrcRect);
 
 		clearRectExterior(data.DstSubResourceIndex, data.DstRect);
 
@@ -1351,7 +1307,7 @@ namespace D3dDdi
 		std::vector<Gdi::Window::LayeredWindow> layeredWindows, const RECT& monitorRect)
 	{
 		auto& blitter = m_device.getShaderBlitter();
-		auto& repo = SurfaceRepository::get(m_device.getAdapter());
+		auto& repo = m_device.getRepo();
 
 		for (auto& layeredWindow : layeredWindows)
 		{
@@ -1513,7 +1469,7 @@ namespace D3dDdi
 			return LOG_RESULT(m_device.getOrigVtable().pfnBlt(m_device, &data));
 		}
 
-		auto& repo = SurfaceRepository::get(m_device.getAdapter());
+		auto& repo = m_device.getRepo();
 
 		Resource* srcRes = &srcResource;
 		UINT srcIndex = data.SrcSubResourceIndex;
@@ -1574,7 +1530,7 @@ namespace D3dDdi
 		{
 			LONG width = data.DstRect.right - data.DstRect.left;
 			LONG height = data.DstRect.bottom - data.DstRect.top;
-			auto& rt = getNextRenderTarget(srcRes, width, height);
+			auto& rt = repo.getNextRenderTarget(width, height, srcRes);
 			if (!rt.resource)
 			{
 				return LOG_RESULT(E_OUTOFMEMORY);
@@ -1716,39 +1672,36 @@ namespace D3dDdi
 			static_cast<LONG>(m_fixedData.pSurfList[0].Height) != m_scaledSize.cy;
 		if (D3DDDIMULTISAMPLE_NONE != msaa.first || m_fixedData.Format != formatConfig || isScaled)
 		{
+			auto& repo = m_device.getRepo();
 			const DWORD caps = (m_fixedData.Flags.ZBuffer ? DDSCAPS_ZBUFFER : DDSCAPS_3DDEVICE) | DDSCAPS_VIDEOMEMORY;
 			if (D3DDDIMULTISAMPLE_NONE != msaa.first)
 			{
 				g_msaaOverride = msaa;
-				SurfaceRepository::get(m_device.getAdapter()).getSurface(m_msaaSurface,
-					scaledSize.cx, scaledSize.cy, formatConfig, caps, m_fixedData.SurfCount);
+				repo.getSurface(m_msaaSurface, scaledSize.cx, scaledSize.cy, formatConfig, caps, m_fixedData.SurfCount);
 				g_msaaOverride = {};
 			}
 
 			if (m_fixedData.Flags.ZBuffer && m_msaaSurface.resource)
 			{
 				g_msaaOverride = msaa;
-				SurfaceRepository::get(m_device.getAdapter()).getSurface(m_nullSurface,
-					scaledSize.cx, scaledSize.cy, FOURCC_NULL,
+				repo.getSurface(m_nullSurface, scaledSize.cx, scaledSize.cy, FOURCC_NULL,
 					DDSCAPS_3DDEVICE | DDSCAPS_VIDEOMEMORY, m_fixedData.SurfCount);
 				g_msaaOverride = {};
 			}
-			SurfaceRepository::get(m_device.getAdapter()).getSurface(m_msaaResolvedSurface,
-				scaledSize.cx, scaledSize.cy, m_nullSurface.resource ? FOURCC_INTZ : formatConfig,
-				caps, m_fixedData.SurfCount);
+			repo.getSurface(m_msaaResolvedSurface, scaledSize.cx, scaledSize.cy,
+				m_nullSurface.resource ? FOURCC_INTZ : formatConfig, caps, m_fixedData.SurfCount);
 
 			if (!m_msaaResolvedSurface.resource && m_msaaSurface.resource)
 			{
 				m_msaaSurface = {};
-				SurfaceRepository::get(m_device.getAdapter()).getSurface(m_msaaResolvedSurface,
-					scaledSize.cx, scaledSize.cy, formatConfig, caps, m_fixedData.SurfCount);
+				repo.getSurface(m_msaaResolvedSurface, scaledSize.cx, scaledSize.cy,
+					formatConfig, caps, m_fixedData.SurfCount);
 			}
 
 			if (!m_fixedData.Flags.ZBuffer && m_msaaResolvedSurface.resource)
 			{
-				SurfaceRepository::get(m_device.getAdapter()).getSurface(m_lockRefSurface,
-					m_fixedData.pSurfList[0].Width, m_fixedData.pSurfList[0].Height, m_fixedData.Format,
-					DDSCAPS_TEXTURE | DDSCAPS_VIDEOMEMORY, m_fixedData.SurfCount);
+				repo.getSurface(m_lockRefSurface, m_fixedData.pSurfList[0].Width, m_fixedData.pSurfList[0].Height,
+					m_fixedData.Format, DDSCAPS_TEXTURE | DDSCAPS_VIDEOMEMORY, m_fixedData.SurfCount);
 				
 				if (isScaled && m_device.getGdiResource() == this)
 				{
diff --git a/DDrawCompat/D3dDdi/Resource.h b/DDrawCompat/D3dDdi/Resource.h
index c2fe734..5cf973d 100644
--- a/DDrawCompat/D3dDdi/Resource.h
+++ b/DDrawCompat/D3dDdi/Resource.h
@@ -114,7 +114,6 @@ namespace D3dDdi
 		void fixResourceData();
 		D3DDDIFORMAT getFormatConfig();
 		std::pair<D3DDDIMULTISAMPLE_TYPE, UINT> getMultisampleConfig();
-		const SurfaceRepository::Surface& getNextRenderTarget(Resource* currentRt, DWORD width, DWORD height);
 		SIZE getScaledSize();
 		bool isValidRect(UINT subResourceIndex, const RECT& rect);
 		void loadFromLockRefResource(UINT subResourceIndex);
diff --git a/DDrawCompat/D3dDdi/ShaderBlitter.cpp b/DDrawCompat/D3dDdi/ShaderBlitter.cpp
index c82f3cc..39e95cc 100644
--- a/DDrawCompat/D3dDdi/ShaderBlitter.cpp
+++ b/DDrawCompat/D3dDdi/ShaderBlitter.cpp
@@ -1,5 +1,6 @@
 #include <Common/Log.h>
 #include <Common/Rect.h>
+#include <Config/Settings/DisplayFilter.h>
 #include <D3dDdi/Adapter.h>
 #include <D3dDdi/Device.h>
 #include <D3dDdi/Resource.h>
@@ -12,6 +13,7 @@
 #include <Shaders/DrawCursor.h>
 #include <Shaders/Gamma.h>
 #include <Shaders/GenBilinear.h>
+#include <Shaders/Lanczos.h>
 #include <Shaders/LockRef.h>
 #include <Shaders/PaletteLookup.h>
 #include <Shaders/TextureSampler.h>
@@ -61,6 +63,7 @@ namespace D3dDdi
 		, m_psDrawCursor(createPixelShader(g_psDrawCursor))
 		, m_psGamma(createPixelShader(g_psGamma))
 		, m_psGenBilinear(createPixelShader(g_psGenBilinear))
+		, m_psLanczos(createPixelShader(g_psLanczos))
 		, m_psLockRef(createPixelShader(g_psLockRef))
 		, m_psPaletteLookup(createPixelShader(g_psPaletteLookup))
 		, m_psTextureSampler(createPixelShader(g_psTextureSampler))
@@ -172,6 +175,108 @@ namespace D3dDdi
 			m_psColorKeyBlend.get(), D3DTEXF_POINT);
 	}
 
+	void ShaderBlitter::convolution(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
+		const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect,
+		bool isHorizontal, float kernelStep, int sampleCount, float support, HANDLE pixelShader)
+	{
+		LOG_FUNC("ShaderBlitter::convolution", static_cast<HANDLE>(dstResource), dstSubResourceIndex, dstRect,
+			static_cast<HANDLE>(srcResource), srcSubResourceIndex, srcRect,
+			isHorizontal, kernelStep, sampleCount, support, pixelShader);
+
+		const auto& srcDesc = srcResource.getFixedDesc().pSurfList[0];
+		const Float2 textureSize(srcDesc.Width, srcDesc.Height);
+		const Float2 textureSizeRcp = Float2(1) / textureSize;
+		const float textureStep = isHorizontal ? textureSizeRcp.x : textureSizeRcp.y;
+
+		const int firstSampleOffset = -sampleCount / 2 + 1;
+		const float firstKernelOffset = firstSampleOffset * kernelStep;
+		const float firstTextureOffset = firstSampleOffset * textureStep;
+
+		std::array<DeviceState::ShaderConstF, 5> reg = {};
+		reg[0] = { textureSize.x, textureSize.y, textureSizeRcp.x, textureSizeRcp.y };
+		if (isHorizontal)
+		{
+			reg[1] = { firstTextureOffset, 0, firstKernelOffset, 0 };
+			reg[2] = { textureStep, 0, kernelStep, 0 };
+			reg[3] = { -0.5f, 0, 0.5f * textureSizeRcp.x, 0.5f * textureSizeRcp.y };
+		}
+		else
+		{
+			reg[1] = { 0, firstTextureOffset, 0, firstKernelOffset };
+			reg[2] = { 0, textureStep, 0, kernelStep };
+			reg[3] = { 0, -0.5f, 0.5f * textureSizeRcp.x, 0.5f * textureSizeRcp.y };
+		}
+		reg[4] = { support, 1.0f / support, 0, 0 };
+
+		DeviceState::TempPixelShaderConst tempPsConst(m_device.getState(), { 0, reg.size() }, reg.data());
+		blt(dstResource, dstSubResourceIndex, dstRect, srcResource, srcSubResourceIndex, srcRect,
+			pixelShader, D3DTEXF_LINEAR | D3DTEXF_SRGB);
+	}
+
+	void ShaderBlitter::convolutionBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
+		const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect,
+		Float2 support, HANDLE pixelShader)
+	{
+		LOG_FUNC("ShaderBlitter::convolutionBlt", static_cast<HANDLE>(dstResource), dstSubResourceIndex, dstRect,
+			static_cast<HANDLE>(srcResource), srcSubResourceIndex, srcRect, support, pixelShader);
+
+		const Int2 dstSize(dstRect.right - dstRect.left, dstRect.bottom - dstRect.top);
+		const Int2 srcSize(srcRect.right - srcRect.left, srcRect.bottom - srcRect.top);
+		const Float2 scale = Float2(dstSize) / Float2(srcSize);
+		const Float2 kernelStep = min(scale, Float2(1));
+		const Int2 sampleCount = min(Float2(2) * ceil(support / kernelStep), Float2(255));
+
+		if (srcSize.y == dstSize.y)
+		{
+			return convolution(dstResource, dstSubResourceIndex, dstRect, srcResource, srcSubResourceIndex, srcRect,
+				true, kernelStep.x, sampleCount.x, support.x, pixelShader);
+		}
+		else if (srcSize.x == dstSize.x)
+		{
+			return convolution(dstResource, dstSubResourceIndex, dstRect, srcResource, srcSubResourceIndex, srcRect,
+				false, kernelStep.y, sampleCount.y, support.y, pixelShader);
+		}
+
+		const bool isHorizontalFirst = dstSize.x * srcSize.y <= srcSize.x * dstSize.y;
+		RECT rect = { 0, 0, srcSize.x, srcSize.y };
+		if (dstSize.x * srcSize.y <= srcSize.x * dstSize.y)
+		{
+			rect.right = dstSize.x;
+		}
+		else
+		{
+			rect.bottom = dstSize.y;
+		}
+
+		auto rt = m_device.getRepo().getNextRenderTarget(rect.right, rect.bottom, &srcResource, &dstResource).resource;
+		if (!rt)
+		{
+			return;
+		}
+
+		const std::array<DeviceState::ShaderConstI, 2> reg = { {
+			{ sampleCount.x },
+			{ sampleCount.y }
+		} };
+
+		DeviceState::TempPixelShaderConstI tempPsConstI(m_device.getState(), { 0, reg.size()}, reg.data());
+
+		if (isHorizontalFirst)
+		{
+			convolution(*rt, 0, rect, srcResource, srcSubResourceIndex, srcRect,
+				true, kernelStep.x, sampleCount.x, support.x, pixelShader);
+			convolution(dstResource, dstSubResourceIndex, dstRect, *rt, 0, rect,
+				false, kernelStep.y, sampleCount.y, support.y, pixelShader);
+		}
+		else
+		{
+			convolution(*rt, 0, rect, srcResource, srcSubResourceIndex, srcRect,
+				false, kernelStep.y, sampleCount.y, support.y, pixelShader);
+			convolution(dstResource, dstSubResourceIndex, dstRect, *rt, 0, rect,
+				true, kernelStep.x, sampleCount.x, support.x, pixelShader);
+		}
+	}
+
 	std::unique_ptr<void, ResourceDeleter> ShaderBlitter::createPixelShader(const BYTE* code, UINT size)
 	{
 		D3DDDIARG_CREATEPIXELSHADER data = {};
@@ -214,7 +319,7 @@ namespace D3dDdi
 	{
 		LOG_FUNC("ShaderBlitter::cursorBlt", static_cast<HANDLE>(dstResource), dstSubResourceIndex, dstRect, cursor, pt);
 
-		auto& repo = SurfaceRepository::get(m_device.getAdapter());
+		auto& repo = m_device.getRepo();
 		auto cur = repo.getCursor(cursor);
 		if (!cur.colorTexture)
 		{
@@ -316,6 +421,67 @@ namespace D3dDdi
 		m_device.flushPrimitives();
 	}
 
+	void ShaderBlitter::displayBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
+		const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect)
+	{
+		auto& repo = m_device.getRepo();
+		const bool useGamma = !g_isGammaRampDefault && repo.getGammaRampTexture();
+
+		if (Rect::isEqualSize(dstRect, srcRect))
+		{
+			if (useGamma)
+			{
+				gammaBlt(dstResource, dstSubResourceIndex, dstRect, srcResource, srcSubResourceIndex, srcRect);
+				return;
+			}
+
+			D3DDDIARG_BLT data = {};
+			data.hSrcResource = srcResource;
+			data.SrcSubResourceIndex = srcSubResourceIndex;
+			data.SrcRect = srcRect;
+			data.hDstResource = dstResource;
+			data.DstSubResourceIndex = dstSubResourceIndex;
+			data.DstRect = dstRect;
+			data.Flags.Point = 1;
+			m_device.getOrigVtable().pfnBlt(m_device, &data);
+			return;
+		}
+
+		RECT r = { 0, 0, dstRect.right - dstRect.left, dstRect.bottom - dstRect.top };
+		Resource* rtGamma = nullptr;
+		if (useGamma)
+		{
+			rtGamma = repo.getNextRenderTarget(r.right, r.bottom, &srcResource).resource;
+		}
+
+		const auto& rt = rtGamma ? *rtGamma : dstResource;
+		const auto rtIndex = rtGamma ? 0 : dstSubResourceIndex;
+		const auto& rtRect = rtGamma ? r : dstRect;
+
+		switch (Config::displayFilter.get())
+		{
+		case Config::Settings::DisplayFilter::POINT:
+			m_device.getShaderBlitter().textureBlt(rt, rtIndex, rtRect,
+				srcResource, srcSubResourceIndex, srcRect, D3DTEXF_POINT);
+			break;
+
+		case Config::Settings::DisplayFilter::BILINEAR:
+			m_device.getShaderBlitter().genBilinearBlt(rt, rtIndex, rtRect,
+				srcResource, srcSubResourceIndex, srcRect, Config::displayFilter.getParam());
+			break;
+
+		case Config::Settings::DisplayFilter::LANCZOS:
+			m_device.getShaderBlitter().lanczosBlt(rt, rtIndex, rtRect,
+				srcResource, srcSubResourceIndex, srcRect, Config::displayFilter.getParam());
+			break;
+		}
+
+		if (rtGamma)
+		{
+			gammaBlt(dstResource, dstSubResourceIndex, dstRect, rt, rtIndex, rtRect);
+		}
+	}
+
 	void ShaderBlitter::drawRect(const RECT& srcRect, const RectF& dstRect, UINT srcWidth, UINT srcHeight)
 	{
 		m_vertices[0].xy = { dstRect.left - 0.5f, dstRect.top - 0.5f };
@@ -333,12 +499,12 @@ namespace D3dDdi
 	}
 
 	void ShaderBlitter::gammaBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
-		const Resource& srcResource, const RECT& srcRect)
+		const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect)
 	{
 		LOG_FUNC("ShaderBlitter::gammaBlt", static_cast<HANDLE>(dstResource), dstSubResourceIndex, dstRect,
-			static_cast<HANDLE>(srcResource), srcRect);
+			static_cast<HANDLE>(srcResource), srcSubResourceIndex, srcRect);
 
-		auto gammaRampTexture(SurfaceRepository::get(m_device.getAdapter()).getGammaRampTexture());
+		auto gammaRampTexture(m_device.getRepo().getGammaRampTexture());
 		if (!gammaRampTexture)
 		{
 			return;
@@ -371,13 +537,13 @@ namespace D3dDdi
 	}
 
 	void ShaderBlitter::genBilinearBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
-		const Resource& srcResource, const RECT& srcRect, UINT blurPercent)
+		const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect, UINT blurPercent)
 	{
 		LOG_FUNC("ShaderBlitter::genBilinearBlt", static_cast<HANDLE>(dstResource), dstSubResourceIndex, dstRect,
-			static_cast<HANDLE>(srcResource), srcRect, blurPercent);
+			static_cast<HANDLE>(srcResource), srcSubResourceIndex, srcRect, blurPercent);
 		if (100 == blurPercent)
 		{
-			blt(dstResource, dstSubResourceIndex, dstRect, srcResource, 0, srcRect,
+			blt(dstResource, dstSubResourceIndex, dstRect, srcResource, srcSubResourceIndex, srcRect,
 				m_psTextureSampler.get(), D3DTEXF_LINEAR | D3DTEXF_SRGB);
 			return;
 		}
@@ -396,13 +562,18 @@ namespace D3dDdi
 		} };
 
 		DeviceState::TempPixelShaderConst tempPsConst(m_device.getState(), { 0, registers.size() }, registers.data());
-		blt(dstResource, dstSubResourceIndex, dstRect, srcResource, 0, srcRect, m_psGenBilinear.get(),
+		blt(dstResource, dstSubResourceIndex, dstRect, srcResource, srcSubResourceIndex, srcRect, m_psGenBilinear.get(),
 			D3DTEXF_LINEAR | D3DTEXF_SRGB);
 	}
 
-	bool ShaderBlitter::isGammaRampDefault()
+	void ShaderBlitter::lanczosBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
+		const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect, UINT lobes)
 	{
-		return g_isGammaRampDefault;
+		LOG_FUNC("ShaderBlitter::lanczosBlt", static_cast<HANDLE>(dstResource), dstSubResourceIndex, dstRect,
+			static_cast<HANDLE>(srcResource), srcSubResourceIndex, srcRect, lobes);
+
+		convolutionBlt(dstResource, dstSubResourceIndex, dstRect, srcResource, srcSubResourceIndex, srcRect,
+			lobes, m_psLanczos.get());
 	}
 
 	void ShaderBlitter::lockRefBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
@@ -425,7 +596,7 @@ namespace D3dDdi
 			static_cast<HANDLE>(srcResource), srcSubResourceIndex, srcRect,
 			Compat::array(reinterpret_cast<void**>(palette), 256));
 
-		auto paletteTexture(SurfaceRepository::get(m_device.getAdapter()).getPaletteTexture());
+		auto paletteTexture(m_device.getRepo().getPaletteTexture());
 		if (!paletteTexture)
 		{
 			return;
diff --git a/DDrawCompat/D3dDdi/ShaderBlitter.h b/DDrawCompat/D3dDdi/ShaderBlitter.h
index 77925a6..2442821 100644
--- a/DDrawCompat/D3dDdi/ShaderBlitter.h
+++ b/DDrawCompat/D3dDdi/ShaderBlitter.h
@@ -5,6 +5,7 @@
 
 #include <Windows.h>
 
+#include <Common/Vector.h>
 #include <D3dDdi/ResourceDeleter.h>
 #include <Gdi/Region.h>
 
@@ -30,10 +31,14 @@ namespace D3dDdi
 			HCURSOR cursor, POINT pt);
 		void depthBlt(const Resource& dstResource, const RECT& dstRect,
 			const Resource& srcResource, const RECT& srcRect, HANDLE nullResource);
+		void displayBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
+			const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect);
 		void gammaBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
-			const Resource& srcResource, const RECT& srcRect);
+			const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect);
 		void genBilinearBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
-			const Resource& srcResource, const RECT& srcRect, UINT blurPercent);
+			const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect, UINT blurPercent);
+		void lanczosBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
+			const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect, UINT lobes);
 		void lockRefBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
 			const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect,
 			const Resource& lockRefResource);
@@ -44,7 +49,6 @@ namespace D3dDdi
 			UINT filter, const DeviceState::ShaderConstF* srcColorKey = nullptr, const BYTE* alpha = nullptr,
 			const Gdi::Region& srcRgn = nullptr);
 
-		static bool isGammaRampDefault();
 		static void resetGammaRamp();
 		static void setGammaRamp(const D3DDDI_GAMMA_RAMP_RGB256x3x16& ramp);
 
@@ -62,6 +66,12 @@ namespace D3dDdi
 		void blt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
 			const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect, HANDLE pixelShader,
 			UINT filter, UINT flags = 0, const BYTE* alpha = nullptr, const Gdi::Region& srcRgn = nullptr);
+		void convolution(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
+			const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect,
+			bool isHorizontal, float kernelStep, int sampleCount, float support, HANDLE pixelShader);
+		void convolutionBlt(const Resource& dstResource, UINT dstSubResourceIndex, const RECT& dstRect,
+			const Resource& srcResource, UINT srcSubResourceIndex, const RECT& srcRect,
+			Float2 support, HANDLE pixelShader);
 
 		template <int N>
 		std::unique_ptr<void, ResourceDeleter> createPixelShader(const BYTE(&code)[N])
@@ -82,6 +92,7 @@ namespace D3dDdi
 		std::unique_ptr<void, ResourceDeleter> m_psDrawCursor;
 		std::unique_ptr<void, ResourceDeleter> m_psGamma;
 		std::unique_ptr<void, ResourceDeleter> m_psGenBilinear;
+		std::unique_ptr<void, ResourceDeleter> m_psLanczos;
 		std::unique_ptr<void, ResourceDeleter> m_psLockRef;
 		std::unique_ptr<void, ResourceDeleter> m_psPaletteLookup;
 		std::unique_ptr<void, ResourceDeleter> m_psTextureSampler;
diff --git a/DDrawCompat/D3dDdi/SurfaceRepository.cpp b/DDrawCompat/D3dDdi/SurfaceRepository.cpp
index 6141fbd..9dafed4 100644
--- a/DDrawCompat/D3dDdi/SurfaceRepository.cpp
+++ b/DDrawCompat/D3dDdi/SurfaceRepository.cpp
@@ -229,6 +229,23 @@ namespace D3dDdi
 		return surface.resource;
 	}
 
+	const SurfaceRepository::Surface& SurfaceRepository::getNextRenderTarget(
+		DWORD width, DWORD height, const Resource* currentSrcRt, const Resource* currentDstRt)
+	{
+		std::size_t index = 0;
+		while (index < m_renderTargets.size())
+		{
+			auto rt = m_renderTargets[index].resource;
+			if (!rt || rt != currentSrcRt && rt != currentDstRt)
+			{
+				break;
+			}
+			++index;
+		}
+		return getTempSurface(m_renderTargets[index], width, height, D3DDDIFMT_A8R8G8B8,
+			DDSCAPS_3DDEVICE | DDSCAPS_TEXTURE | DDSCAPS_VIDEOMEMORY);
+	}
+
 	Resource* SurfaceRepository::getPaletteTexture()
 	{
 		return getSurface(m_paletteTexture, 256, 1, D3DDDIFMT_A8R8G8B8, DDSCAPS_TEXTURE | DDSCAPS_VIDEOMEMORY).resource;
@@ -263,16 +280,6 @@ namespace D3dDdi
 		return surface;
 	}
 
-	const SurfaceRepository::Surface& SurfaceRepository::getTempRenderTarget(DWORD width, DWORD height, UINT index)
-	{
-		if (index >= m_renderTargets.size())
-		{
-			m_renderTargets.resize(index + 1);
-		}
-		return getTempSurface(m_renderTargets[index], width, height, D3DDDIFMT_A8R8G8B8,
-			DDSCAPS_3DDEVICE | DDSCAPS_TEXTURE | DDSCAPS_VIDEOMEMORY);
-	}
-
 	SurfaceRepository::Surface& SurfaceRepository::getTempSurface(Surface& surface, DWORD width, DWORD height,
 		D3DDDIFORMAT format, DWORD caps, UINT surfaceCount)
 	{
diff --git a/DDrawCompat/D3dDdi/SurfaceRepository.h b/DDrawCompat/D3dDdi/SurfaceRepository.h
index b0b651c..e9c69fd 100644
--- a/DDrawCompat/D3dDdi/SurfaceRepository.h
+++ b/DDrawCompat/D3dDdi/SurfaceRepository.h
@@ -1,7 +1,9 @@
 #pragma once
 
+#include <array>
 #include <functional>
 #include <map>
+#include <vector>
 
 #include <ddraw.h>
 
@@ -41,9 +43,10 @@ namespace D3dDdi
 		Resource* getLogicalXorTexture();
 		Resource* getPaletteTexture();
 		Resource* getGammaRampTexture();
+		const Surface& getNextRenderTarget(DWORD width, DWORD height,
+			const Resource* currentSrcRt = nullptr, const Resource* currentDstRt = nullptr);
 		Surface& getSurface(Surface& surface, DWORD width, DWORD height,
 			D3DDDIFORMAT format, DWORD caps, UINT surfaceCount = 1, DWORD caps2 = 0);
-		const Surface& getTempRenderTarget(DWORD width, DWORD height, UINT index = 0);
 		Surface& getTempSysMemSurface(DWORD width, DWORD height);
 		Surface& getTempSurface(Surface& surface, DWORD width, DWORD height,
 			D3DDDIFORMAT format, DWORD caps, UINT surfaceCount = 1);
@@ -74,7 +77,7 @@ namespace D3dDdi
 		Surface m_gammaRampTexture;
 		Surface m_logicalXorTexture;
 		Surface m_paletteTexture;
-		std::vector<Surface> m_renderTargets;
+		std::array<Surface, 3> m_renderTargets;
 		std::map<D3DDDIFORMAT, Surface> m_textures;
 		std::vector<Surface> m_releasedSurfaces;
 		Surface m_sysMemSurface;
diff --git a/DDrawCompat/DDraw/RealPrimarySurface.cpp b/DDrawCompat/DDraw/RealPrimarySurface.cpp
index cad4865..04f8dba 100644
--- a/DDrawCompat/DDraw/RealPrimarySurface.cpp
+++ b/DDrawCompat/DDraw/RealPrimarySurface.cpp
@@ -194,7 +194,7 @@ namespace
 			return nullptr;
 		}
 
-		auto& repo = D3dDdi::SurfaceRepository::get(device->getAdapter());
+		auto& repo = device->getRepo();
 		D3dDdi::SurfaceRepository::Surface surface = {};
 		repo.getSurface(surface, width, height, D3DDDIFMT_X8R8G8B8,
 			DDSCAPS_OFFSCREENPLAIN | DDSCAPS_3DDEVICE | DDSCAPS_VIDEOMEMORY);
diff --git a/DDrawCompat/DDraw/Surfaces/PrimarySurface.cpp b/DDrawCompat/DDraw/Surfaces/PrimarySurface.cpp
index ba2f5ca..fe2b9cd 100644
--- a/DDrawCompat/DDraw/Surfaces/PrimarySurface.cpp
+++ b/DDrawCompat/DDraw/Surfaces/PrimarySurface.cpp
@@ -51,7 +51,7 @@ namespace
 			return LOG_RESULT(nullptr);
 		}
 
-		auto& repo = D3dDdi::SurfaceRepository::get(device->getAdapter());
+		auto& repo = device->getRepo();
 		D3dDdi::SurfaceRepository::Surface surface = {};
 		repo.getSurface(surface, 1, 1, D3DDDIFMT_X8R8G8B8, DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY);
 
diff --git a/DDrawCompat/DDraw/Surfaces/SurfaceImpl.cpp b/DDrawCompat/DDraw/Surfaces/SurfaceImpl.cpp
index ecc816e..19335f2 100644
--- a/DDrawCompat/DDraw/Surfaces/SurfaceImpl.cpp
+++ b/DDrawCompat/DDraw/Surfaces/SurfaceImpl.cpp
@@ -80,7 +80,7 @@ namespace
 			return bltFunc(This, lpDDSrcSurface, lpSrcRect);
 		}
 
-		auto& repo = D3dDdi::SurfaceRepository::get(srcResource->getDevice().getAdapter());
+		auto& repo = srcResource->getDevice().getRepo();
 		RECT srcRect = getRect(lpSrcRect, srcDesc);
 		auto& tex = repo.getTempTexture(srcRect.right - srcRect.left, srcRect.bottom - srcRect.top,
 			srcResource->getOrigDesc().Format);
diff --git a/DDrawCompat/DDrawCompat.vcxproj b/DDrawCompat/DDrawCompat.vcxproj
index fe9ec88..461b935 100644
--- a/DDrawCompat/DDrawCompat.vcxproj
+++ b/DDrawCompat/DDrawCompat.vcxproj
@@ -91,7 +91,7 @@
     <FxCompile>
       <HeaderFileOutput>$(IntDir)%(RelativeDir)%(Filename).h</HeaderFileOutput>
       <ObjectFileOutput />
-      <ShaderModel>2.0</ShaderModel>
+      <ShaderModel>3.0</ShaderModel>
       <ShaderType>Pixel</ShaderType>
       <DisableOptimizations>false</DisableOptimizations>
     </FxCompile>
@@ -128,7 +128,7 @@
     <FxCompile>
       <HeaderFileOutput>$(IntDir)%(RelativeDir)%(Filename).h</HeaderFileOutput>
       <ObjectFileOutput />
-      <ShaderModel>2.0</ShaderModel>
+      <ShaderModel>3.0</ShaderModel>
       <ShaderType>Pixel</ShaderType>
     </FxCompile>
   </ItemDefinitionGroup>
@@ -457,6 +457,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="genversion.ps1" />
+    <None Include="Shaders\Convolution.hlsli" />
   </ItemGroup>
   <ItemGroup>
     <FxCompile Include="Shaders\ColorKey.hlsl" />
@@ -465,6 +466,7 @@
     <FxCompile Include="Shaders\DrawCursor.hlsl" />
     <FxCompile Include="Shaders\Gamma.hlsl" />
     <FxCompile Include="Shaders\GenBilinear.hlsl" />
+    <FxCompile Include="Shaders\Lanczos.hlsl" />
     <FxCompile Include="Shaders\LockRef.hlsl" />
     <FxCompile Include="Shaders\PaletteLookup.hlsl" />
     <FxCompile Include="Shaders\TextureSampler.hlsl" />
@@ -473,6 +475,8 @@
       <ShaderType Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Vertex</ShaderType>
       <VariableName Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">g_vs%(Filename)</VariableName>
       <VariableName Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">g_vs%(Filename)</VariableName>
+      <ShaderModel Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">2.0</ShaderModel>
+      <ShaderModel Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">2.0</ShaderModel>
     </FxCompile>
   </ItemGroup>
   <ItemGroup>
diff --git a/DDrawCompat/DDrawCompat.vcxproj.filters b/DDrawCompat/DDrawCompat.vcxproj.filters
index 46b82da..5f5cc09 100644
--- a/DDrawCompat/DDrawCompat.vcxproj.filters
+++ b/DDrawCompat/DDrawCompat.vcxproj.filters
@@ -665,7 +665,7 @@
     </ClInclude>
     <ClInclude Include="Config\Settings\ColorKeyMethod.h">
       <Filter>Header Files\Config\Settings</Filter>
-    </ClInclude>    
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="Gdi\Gdi.cpp">
@@ -1055,7 +1055,7 @@
     <ClCompile Include="Config\Settings\ColorKeyMethod.cpp">
       <Filter>Source Files\Config\Settings</Filter>
     </ClCompile>
-</ItemGroup>
+  </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="DDrawCompat.rc">
       <Filter>Resource Files</Filter>
@@ -1065,6 +1065,9 @@
     <None Include="genversion.ps1">
       <Filter>Resource Files</Filter>
     </None>
+    <None Include="Shaders\Convolution.hlsli">
+      <Filter>Shaders</Filter>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <FxCompile Include="Shaders\PaletteLookup.hlsl">
@@ -1097,10 +1100,13 @@
     <FxCompile Include="Shaders\ColorKeyBlend.hlsl">
       <Filter>Shaders</Filter>
     </FxCompile>
+    <FxCompile Include="Shaders\Lanczos.hlsl">
+      <Filter>Shaders</Filter>
+    </FxCompile>
   </ItemGroup>
   <ItemGroup>
     <Image Include="arrow.bmp">
       <Filter>Resource Files</Filter>
     </Image>
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/DDrawCompat/Shaders/Convolution.hlsli b/DDrawCompat/Shaders/Convolution.hlsli
new file mode 100644
index 0000000..31902fc
--- /dev/null
+++ b/DDrawCompat/Shaders/Convolution.hlsli
@@ -0,0 +1,50 @@
+sampler2D s_texture : register(s0);
+int g_sampleCountX : register(i0);
+int g_sampleCountY : register(i1);
+
+float4 c[32] : register(c0);
+static const float2 g_textureSize       = c[0].xy;
+static const float2 g_textureSizeRcp    = c[0].zw;
+static const float4 g_firstCoordOffset  = c[1];
+static const float4 g_coordStep         = c[2];
+static const float2 g_sampleCoordOffset = c[3].xy;
+static const float2 g_halfTexelOffset   = c[3].zw;
+static const float  g_support           = c[4].x;
+static const float  g_supportRcp        = c[4].y;
+
+float kernel(float x);
+
+float4 main(float2 texCoord : TEXCOORD0) : COLOR0
+{
+	const float2 sampleCoord = texCoord * g_textureSize + g_sampleCoordOffset;
+	const float2 sampleCoordFrac = frac(sampleCoord);
+	const float2 sampleCoordInt = sampleCoord - sampleCoordFrac;
+	const float2 centeredTexCoord = sampleCoordInt * g_textureSizeRcp + g_halfTexelOffset;
+
+	float4 coord = float4(centeredTexCoord, -sampleCoordFrac * g_coordStep.zw) + g_firstCoordOffset;
+	float4 coordStep = g_coordStep;
+	float4 colorSum = 0;
+
+	if (0 != coordStep.x)
+	{
+		for (int i = 0; i < g_sampleCountX; ++i)
+		{
+			coordStep.w = kernel(coord.z);
+			float4 color = tex2Dlod(s_texture, coord);
+			colorSum += coordStep.w * color;
+			coord += coordStep;
+		}
+		return colorSum / coord.w;
+	}
+	else
+	{
+		for (int i = 0; i < g_sampleCountY; ++i)
+		{
+			coordStep.z = kernel(coord.w);
+			float4 color = tex2Dlod(s_texture, coord);
+			colorSum += coordStep.z * color;
+			coord += coordStep;
+		}
+		return colorSum / coord.z;
+	}
+}
diff --git a/DDrawCompat/Shaders/Lanczos.hlsl b/DDrawCompat/Shaders/Lanczos.hlsl
new file mode 100644
index 0000000..577255b
--- /dev/null
+++ b/DDrawCompat/Shaders/Lanczos.hlsl
@@ -0,0 +1,10 @@
+#include "Convolution.hlsli"
+
+float kernel(float x)
+{
+	x = min(abs(x), g_support);
+	const float PI = radians(180);
+	const float pi_x = PI * x;
+	const float pi_x_2 = pi_x * pi_x;
+	return 0 == pi_x_2 ? 1 : (g_support * sin(pi_x) * sin(pi_x * g_supportRcp) / pi_x_2);
+}