Export symbols to enable high performance rendering, fixes #55

Driver Scale Parameter

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,14 @@
+---
+name: Bug report
+about: Something is broken
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+<!--
+If you are having trouble setting this up with SteamVR and would like help, the fastest way is to ask in the Discord group. https://discord.com/invite/m7g2Wyj
+
+If you are having issues after updating SteamVR, please check for a new release at https://github.com/pushrax/OpenVR-SpaceCalibrator/releases before posting an issue.
+-->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,10 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+

OpenVR-SpaceCalibrator/Calibration.cpp

@@ -269,7 +269,7 @@ void ResetAndDisableOffsets(uint32_t id)
 	zeroQ.x = 0; zeroQ.y = 0; zeroQ.z = 0; zeroQ.w = 1;
 
 	protocol::Request req(protocol::RequestSetDeviceTransform);
-	req.setDeviceTransform = { id, false, zeroV, zeroQ };
+	req.setDeviceTransform = { id, false, zeroV, zeroQ, 1.0 };
 	Driver.SendBlocking(req);
 }
 
@@ -338,7 +338,8 @@ void ScanAndApplyProfile(CalibrationContext &ctx)
 			id,
 			true,
 			VRTranslationVec(ctx.calibratedTranslation),
-			VRRotationQuat(ctx.calibratedRotation)
+			VRRotationQuat(ctx.calibratedRotation),
+			ctx.calibratedScale
 		};
 		Driver.SendBlocking(req);
 	}
@@ -404,6 +405,16 @@ void CalibrationTick(double time)
 	{
 		bool ok = true;
 
+		char referenceSerial[256], targetSerial[256];
+		vr::VRSystem()->GetStringTrackedDeviceProperty(ctx.referenceID, vr::Prop_SerialNumber_String, referenceSerial, 256);
+		vr::VRSystem()->GetStringTrackedDeviceProperty(ctx.targetID, vr::Prop_SerialNumber_String, targetSerial, 256);
+
+		char buf[256];
+		snprintf(buf, sizeof buf, "Reference device ID: %d, serial: %s\n", ctx.referenceID, referenceSerial);
+		CalCtx.Log(buf);
+		snprintf(buf, sizeof buf, "Target device ID: %d, serial %s\n", ctx.targetID, targetSerial);
+		CalCtx.Log(buf);
+
 		if (ctx.referenceID == -1)
 		{
 			CalCtx.Log("Missing reference device\n"); ok = false;
@@ -433,9 +444,7 @@ void CalibrationTick(double time)
 		ctx.state = CalibrationState::Rotation;
 		ctx.wantedUpdateInterval = 0.0;
 
-		char buf[256];
-		snprintf(buf, sizeof buf, "Starting calibration, referenceID=%d targetID=%d\n", ctx.referenceID, ctx.targetID);
-		CalCtx.Log(buf);
+		CalCtx.Log("Starting calibration...\n");
 		return;
 	}
 

OpenVR-SpaceCalibrator/Calibration.h

@@ -20,6 +20,7 @@ struct CalibrationContext
 
 	Eigen::Vector3d calibratedRotation;
 	Eigen::Vector3d calibratedTranslation;
+	double calibratedScale;
 
 	std::string referenceTrackingSystem;
 	std::string targetTrackingSystem;
@@ -57,6 +58,7 @@ struct CalibrationContext
 
 		calibratedRotation = Eigen::Vector3d();
 		calibratedTranslation = Eigen::Vector3d();
+		calibratedScale = 1.0;
 		referenceTrackingSystem = "";
 		targetTrackingSystem = "";
 		enabled = false;

OpenVR-SpaceCalibrator/Configuration.cpp

@@ -9,19 +9,7 @@
 #include <iomanip>
 #include <limits>
 
-static void UpgradeProfileV1(CalibrationContext &ctx);
-static void ParseProfileV2(CalibrationContext &ctx, std::istream &stream);
-
-static std::string ConfigFileName()
-{
-	char cruntimePath[MAX_PATH] = { 0 };
-	unsigned int pathLen;
-	vr::VR_GetRuntimePath(cruntimePath, MAX_PATH, &pathLen);
-	std::string vrRuntimeConfigName(cruntimePath);
-	return vrRuntimeConfigName + "\\..\\..\\..\\config\\01spacecalibrator\\calibration.json";
-}
-
-picojson::array FloatArray(const float *buf, int numFloats)
+static picojson::array FloatArray(const float *buf, int numFloats)
 {
 	picojson::array arr;
 
@@ -31,7 +19,7 @@ picojson::array FloatArray(const float *buf, int numFloats)
 	return arr;
 }
 
-void LoadFloatArray(const picojson::value &obj, float *buf, int numFloats)
+static void LoadFloatArray(const picojson::value &obj, float *buf, int numFloats)
 {
 	if (!obj.is<picojson::array>())
 		throw std::runtime_error("expected array, got " + obj.to_str());
@@ -44,38 +32,7 @@ void LoadFloatArray(const picojson::value &obj, float *buf, int numFloats)
 		buf[i] = (float) arr[i].get<double>();
 }
 
-void LoadProfile(CalibrationContext &ctx)
-{
-	ctx.validProfile = false;
-
-	std::ifstream file(ConfigFileName());
-	if (!file.good())
-	{
-		std::cout << "Profile missing, trying fallback path" << std::endl;
-		// Fallback to working directory, which was the default for a long time.
-		file = std::ifstream("openvr_space_calibration.json");
-	}
-
-
-	if (!file.good())
-	{
-		std::cout << "Fallback profile missing, trying V1 path" << std::endl;
-		UpgradeProfileV1(ctx);
-		return;
-	}
-
-	try
-	{
-		ParseProfileV2(ctx, file);
-		std::cout << "Loaded profile" << std::endl;
-	}
-	catch (const std::runtime_error &e)
-	{
-		std::cerr << "Error loading profile: " << e.what() << std::endl;
-	}
-}
-
-static void ParseProfileV2(CalibrationContext &ctx, std::istream &stream)
+static void ParseProfile(CalibrationContext &ctx, std::istream &stream)
 {
 	picojson::value v;
 	std::string err = picojson::parse(v, stream);
@@ -97,6 +54,11 @@ static void ParseProfileV2(CalibrationContext &ctx, std::istream &stream)
 	ctx.calibratedTranslation(1) = obj["y"].get<double>();
 	ctx.calibratedTranslation(2) = obj["z"].get<double>();
 
+	if (obj["scale"].is<double>())
+		ctx.calibratedScale = obj["scale"].get<double>();
+	else
+		ctx.calibratedScale = 1.0;
+
 	if (obj["calibration_speed"].is<double>())
 		ctx.calibrationSpeed = (CalibrationContext::Speed)(int) obj["calibration_speed"].get<double>();
 
@@ -130,17 +92,10 @@ static void ParseProfileV2(CalibrationContext &ctx, std::istream &stream)
 	ctx.validProfile = true;
 }
 
-void SaveProfile(CalibrationContext &ctx)
+static void WriteProfile(CalibrationContext &ctx, std::ostream &out)
 {
-	std::cout << "Saving profile to " << ConfigFileName() << std::endl;
-
-	std::ofstream file(ConfigFileName());
-
 	if (!ctx.validProfile)
-	{
-		file << "[]";
 		return;
-	}
 
 	picojson::object profile;
 	profile["reference_tracking_system"].set<std::string>(ctx.referenceTrackingSystem);
@@ -151,6 +106,7 @@ void SaveProfile(CalibrationContext &ctx)
 	profile["x"].set<double>(ctx.calibratedTranslation(0));
 	profile["y"].set<double>(ctx.calibratedTranslation(1));
 	profile["z"].set<double>(ctx.calibratedTranslation(2));
+	profile["scale"].set<double>(ctx.calibratedScale);
 
 	double speed = (int) ctx.calibrationSpeed;
 	profile["calibration_speed"].set<double>(speed);
@@ -183,30 +139,90 @@ void SaveProfile(CalibrationContext &ctx)
 	picojson::value profilesV;
 	profilesV.set<picojson::array>(profiles);
 
-	file << profilesV.serialize(true);
+	out << profilesV.serialize(true);
 }
 
-static void UpgradeProfileV1(CalibrationContext &ctx)
+static void LogRegistryResult(LSTATUS result)
+{
+	char *message;
+	FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, 0, result, LANG_USER_DEFAULT, (LPSTR)&message, 0, NULL);
+	std::cerr << "Opening registry key: " << message << std::endl;
+}
+
+static const char *RegistryKey = "Software\\OpenVR-SpaceCalibrator";
+
+static std::string ReadRegistryKey()
+{
+	DWORD size = 0;
+	auto result = RegGetValueA(HKEY_CURRENT_USER_LOCAL_SETTINGS, RegistryKey, "Config", RRF_RT_REG_SZ, 0, 0, &size);
+	if (result != ERROR_SUCCESS)
+	{
+		LogRegistryResult(result);
+		return "";
+	}
+
+	std::string str;
+	str.resize(size);
+
+	result = RegGetValueA(HKEY_CURRENT_USER_LOCAL_SETTINGS, RegistryKey, "Config", RRF_RT_REG_SZ, 0, &str[0], &size);
+	if (result != ERROR_SUCCESS)
+	{
+		LogRegistryResult(result);
+		return "";
+	}
+	
+	str.resize(size - 1);
+	return str;
+}
+
+static void WriteRegistryKey(std::string str)
+{
+	HKEY hkey;
+	auto result = RegCreateKeyExA(HKEY_CURRENT_USER_LOCAL_SETTINGS, RegistryKey, 0, REG_NONE, 0, KEY_ALL_ACCESS, 0, &hkey, 0);
+	if (result != ERROR_SUCCESS)
+	{
+		LogRegistryResult(result);
+		return;
+	}
+
+	DWORD size = str.size() + 1;
+
+	result = RegSetValueExA(hkey, "Config", 0, REG_SZ, reinterpret_cast<const BYTE*>(str.c_str()), size);
+	if (result != ERROR_SUCCESS)
+		LogRegistryResult(result);
+
+	RegCloseKey(hkey);
+}
+
+void LoadProfile(CalibrationContext &ctx)
 {
-	std::ifstream file("openvr_space_calibration.txt");
 	ctx.validProfile = false;
 
-	if (!file.good())
+	auto str = ReadRegistryKey();
+	if (str == "")
+	{
+		std::cout << "Profile is empty" << std::endl;
+		ctx.Clear();
 		return;
+	}
 
-	file
-		>> ctx.targetTrackingSystem
-		>> ctx.calibratedRotation(1) // yaw
-		>> ctx.calibratedRotation(2) // pitch
-		>> ctx.calibratedRotation(0) // roll
-		>> ctx.calibratedTranslation(0) // x
-		>> ctx.calibratedTranslation(1) // y
-		>> ctx.calibratedTranslation(2); // z
+	try
+	{
+		std::stringstream io(str);
+		ParseProfile(ctx, io);
+		std::cout << "Loaded profile" << std::endl;
+	}
+	catch (const std::runtime_error &e)
+	{
+		std::cerr << "Error loading profile: " << e.what() << std::endl;
+	}
+}
 
-	ctx.validProfile = true;
+void SaveProfile(CalibrationContext &ctx)
+{
+	std::cout << "Saving profile to registry" << std::endl;
 
-	SaveProfile(ctx);
-
-	file.close();
-	std::remove("openvr_space_calibration.txt");
+	std::stringstream io;
+	WriteProfile(ctx, io);
+	WriteRegistryKey(io.str());
 }

OpenVR-SpaceCalibrator/IPCClient.cpp

@@ -31,7 +31,7 @@ void IPCClient::Connect()
 
 	if (pipe == INVALID_HANDLE_VALUE)
 	{
-		throw std::runtime_error("Space Calibrator driver unavailable, is SteamVR running and not in safe mode? Error: " + LastErrorString(GetLastError()));
+		throw std::runtime_error("Space Calibrator driver unavailable. Make sure SteamVR is running, and the Space Calibrator addon is enabled in SteamVR settings.");
 	}
 
 	DWORD mode = PIPE_READMODE_MESSAGE;

OpenVR-SpaceCalibrator/OpenVR-SpaceCalibrator.cpp

@@ -18,6 +18,9 @@ processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")
 
 #define OPENVR_APPLICATION_KEY "pushrax.SpaceCalibrator"
 
+extern "C" __declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
+extern "C" __declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 0x00000001;
+
 void CreateConsole()
 {
 	static bool created = false;

OpenVR-SpaceCalibrator/OpenVR-SpaceCalibrator.vcxproj

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|x64">
       <Configuration>Debug</Configuration>
@@ -14,19 +14,19 @@
     <ProjectGuid>{63BAE169-D595-4464-8E7E-50D6FD379348}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>OpenVRSpaceCalibrator</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0.18362.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -85,6 +85,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="..\Version.h" />
     <ClInclude Include="Calibration.h" />
     <ClInclude Include="Configuration.h" />
     <ClInclude Include="EmbeddedFiles.h" />

OpenVR-SpaceCalibrator/OpenVR-SpaceCalibrator.vcxproj.filters

@@ -42,6 +42,9 @@
     <ClInclude Include="IPCClient.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\Version.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="stdafx.cpp">

OpenVR-SpaceCalibrator/UserInterface.cpp

@@ -2,6 +2,7 @@
 #include "UserInterface.h"
 #include "Calibration.h"
 #include "Configuration.h"
+#include "../Version.h"
 
 #include <thread>
 #include <string>
@@ -9,8 +10,6 @@
 #include <algorithm>
 #include <imgui/imgui.h>
 
-#define VERSION_STRING "0.9.2"
-
 struct VRDevice
 {
 	int id = -1;
@@ -173,7 +172,7 @@ void BuildMenu(bool runningInOverlay)
 
 	ImGui::SetNextWindowPos(ImVec2(10.0f, ImGui::GetWindowHeight() - ImGui::GetItemsLineHeightWithSpacing()));
 	ImGui::BeginChild("bottom line", ImVec2(ImGui::GetWindowWidth() - 20.0f, ImGui::GetItemsLineHeightWithSpacing() * 2), false);
-	ImGui::Text("OpenVR Space Calibrator v" VERSION_STRING " - by tach/pushrax");
+	ImGui::Text("OpenVR Space Calibrator v" SPACECAL_VERSION_STRING " - by tach/pushrax");
 	if (runningInOverlay)
 	{
 		ImGui::SameLine();
@@ -489,6 +488,10 @@ void BuildProfileEditor()
 	ImGui::InputDouble("##Y", &CalCtx.calibratedTranslation(1), 1.0, 10.0, "%.8f");
 	ImGui::SameLine();
 	ImGui::InputDouble("##Z", &CalCtx.calibratedTranslation(2), 1.0, 10.0, "%.8f");
+
+	TextWithWidth("ScaleLabel", "Scale", width);
+
+	ImGui::InputDouble("##Scale", &CalCtx.calibratedScale, 0.0001, 0.01, "%.8f");
 	ImGui::PopItemWidth();
 }
 

OpenVR-SpaceCalibratorDriver/InterfaceHookInjector.cpp

@@ -9,15 +9,28 @@ static Hook<void*(*)(vr::IVRDriverContext *, const char *, vr::EVRInitError *)>
 	GetGenericInterfaceHook("IVRDriverContext::GetGenericInterface");
 
 static Hook<void(*)(vr::IVRServerDriverHost *, uint32_t, const vr::DriverPose_t &, uint32_t)>
-	TrackedDevicePoseUpdatedHook("IVRServerDriverHost005::TrackedDevicePoseUpdated");
+	TrackedDevicePoseUpdatedHook005("IVRServerDriverHost005::TrackedDevicePoseUpdated");
 
-static void DetourTrackedDevicePoseUpdated(vr::IVRServerDriverHost *_this, uint32_t unWhichDevice, const vr::DriverPose_t &newPose, uint32_t unPoseStructSize)
+static Hook<void(*)(vr::IVRServerDriverHost *, uint32_t, const vr::DriverPose_t &, uint32_t)>
+	TrackedDevicePoseUpdatedHook006("IVRServerDriverHost006::TrackedDevicePoseUpdated");
+
+static void DetourTrackedDevicePoseUpdated005(vr::IVRServerDriverHost *_this, uint32_t unWhichDevice, const vr::DriverPose_t &newPose, uint32_t unPoseStructSize)
 {
 	//TRACE("ServerTrackedDeviceProvider::DetourTrackedDevicePoseUpdated(%d)", unWhichDevice);
 	auto pose = newPose;
 	if (Driver->HandleDevicePoseUpdated(unWhichDevice, pose))
 	{
-		TrackedDevicePoseUpdatedHook.originalFunc(_this, unWhichDevice, pose, unPoseStructSize);
+		TrackedDevicePoseUpdatedHook005.originalFunc(_this, unWhichDevice, pose, unPoseStructSize);
+	}
+}
+
+static void DetourTrackedDevicePoseUpdated006(vr::IVRServerDriverHost *_this, uint32_t unWhichDevice, const vr::DriverPose_t &newPose, uint32_t unPoseStructSize)
+{
+	//TRACE("ServerTrackedDeviceProvider::DetourTrackedDevicePoseUpdated(%d)", unWhichDevice);
+	auto pose = newPose;
+	if (Driver->HandleDevicePoseUpdated(unWhichDevice, pose))
+	{
+		TrackedDevicePoseUpdatedHook006.originalFunc(_this, unWhichDevice, pose, unPoseStructSize);
 	}
 }
 
@@ -29,10 +42,18 @@ static void *DetourGetGenericInterface(vr::IVRDriverContext *_this, const char *
 	std::string iface(pchInterfaceVersion);
 	if (iface == "IVRServerDriverHost_005")
 	{
-		if (!IHook::Exists(TrackedDevicePoseUpdatedHook.name))
+		if (!IHook::Exists(TrackedDevicePoseUpdatedHook005.name))
 		{
-			TrackedDevicePoseUpdatedHook.CreateHookInObjectVTable(originalInterface, 1, &DetourTrackedDevicePoseUpdated);
-			IHook::Register(&TrackedDevicePoseUpdatedHook);
+			TrackedDevicePoseUpdatedHook005.CreateHookInObjectVTable(originalInterface, 1, &DetourTrackedDevicePoseUpdated005);
+			IHook::Register(&TrackedDevicePoseUpdatedHook005);
+		}
+	}
+	else if (iface == "IVRServerDriverHost_006")
+	{
+		if (!IHook::Exists(TrackedDevicePoseUpdatedHook006.name))
+		{
+			TrackedDevicePoseUpdatedHook006.CreateHookInObjectVTable(originalInterface, 1, &DetourTrackedDevicePoseUpdated006);
+			IHook::Register(&TrackedDevicePoseUpdatedHook006);
 		}
 	}
 

OpenVR-SpaceCalibratorDriver/OpenVR-SpaceCalibratorDriver.vcxproj

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|x64">
       <Configuration>Debug</Configuration>
@@ -14,19 +14,19 @@
     <ProjectGuid>{A61324AD-CE32-46D1-A95E-7E28A6D8CCA7}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>OpenVRSpaceCalibratorDriver</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0.18362.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -85,7 +85,7 @@
       <OptimizeReferences>true</OptimizeReferences>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalLibraryDirectories>..\lib\MinHook\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-      <AdditionalDependencies>libMinHook-x64-v140-md.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libMinHook-x64-v141-md.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>

OpenVR-SpaceCalibratorDriver/ServerTrackedDeviceProvider.cpp

@@ -49,6 +49,9 @@ void ServerTrackedDeviceProvider::SetDeviceTransform(const protocol::SetDeviceTr
 
 	if (newTransform.updateRotation)
 		tf.rotation = newTransform.rotation;
+
+	if (newTransform.updateScale)
+		tf.scale = newTransform.scale;
 }
 
 bool ServerTrackedDeviceProvider::HandleDevicePoseUpdated(uint32_t openVRID, vr::DriverPose_t &pose)
@@ -58,6 +61,10 @@ bool ServerTrackedDeviceProvider::HandleDevicePoseUpdated(uint32_t openVRID, vr:
 	{
 		pose.qWorldFromDriverRotation = tf.rotation * pose.qWorldFromDriverRotation;
 
+		pose.vecPosition[0] *= tf.scale;
+		pose.vecPosition[1] *= tf.scale;
+		pose.vecPosition[2] *= tf.scale;
+
 		vr::HmdVector3d_t rotatedTranslation = quaternionRotateVector(tf.rotation, pose.vecWorldFromDriverTranslation);
 		pose.vecWorldFromDriverTranslation[0] = rotatedTranslation.v[0] + tf.translation.v[0];
 		pose.vecWorldFromDriverTranslation[1] = rotatedTranslation.v[1] + tf.translation.v[1];

OpenVR-SpaceCalibratorDriver/ServerTrackedDeviceProvider.h

@@ -46,6 +46,7 @@ private:
 		bool enabled = false;
 		vr::HmdVector3d_t translation;
 		vr::HmdQuaternion_t rotation;
+		double scale;
 	};
 
 	DeviceTransform transforms[vr::k_unMaxTrackedDeviceCount];

OpenVR-SpaceCalibratorDriver/dllmain.cpp

@@ -1,4 +1,5 @@
 #include "Logging.h"
+#include "../Version.h"
 
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
@@ -10,7 +11,7 @@ BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserv
 	{
 	case DLL_PROCESS_ATTACH:
 		OpenLogFile();
-		LOG("OpenVR-SpaceCalibratorDriver loaded");
+		LOG("OpenVR-SpaceCalibratorDriver " SPACECAL_VERSION_STRING " loaded");
 		break;
 	case DLL_PROCESS_DETACH:
 		LOG("OpenVR-SpaceCalibratorDriver unloaded");

Protocol.h

@@ -10,7 +10,7 @@
 
 namespace protocol
 {
-	const uint32_t Version = 1;
+	const uint32_t Version = 2;
 
 	enum RequestType
 	{
@@ -37,20 +37,28 @@ namespace protocol
 		bool enabled;
 		bool updateTranslation;
 		bool updateRotation;
+		bool updateScale;
 		vr::HmdVector3d_t translation;
 		vr::HmdQuaternion_t rotation;
+		double scale;
 
 		SetDeviceTransform(uint32_t id, bool enabled) :
-			openVRID(id), enabled(enabled), updateTranslation(false), updateRotation(false) { }
+			openVRID(id), enabled(enabled), updateTranslation(false), updateRotation(false), updateScale(false) { }
 
 		SetDeviceTransform(uint32_t id, bool enabled, vr::HmdVector3d_t translation) :
-			openVRID(id), enabled(enabled), updateTranslation(true), updateRotation(false), translation(translation) { }
+			openVRID(id), enabled(enabled), updateTranslation(true), updateRotation(false), updateScale(false), translation(translation) { }
 
 		SetDeviceTransform(uint32_t id, bool enabled, vr::HmdQuaternion_t rotation) :
-			openVRID(id), enabled(enabled), updateTranslation(false), updateRotation(true), rotation(rotation) { }
+			openVRID(id), enabled(enabled), updateTranslation(false), updateRotation(true), updateScale(false), rotation(rotation) { }
+
+		SetDeviceTransform(uint32_t id, bool enabled, double scale) :
+			openVRID(id), enabled(enabled), updateTranslation(false), updateRotation(false), updateScale(true), scale(scale) { }
 
 		SetDeviceTransform(uint32_t id, bool enabled, vr::HmdVector3d_t translation, vr::HmdQuaternion_t rotation) :
-			openVRID(id), enabled(enabled), updateTranslation(true), updateRotation(true), translation(translation), rotation(rotation) { }
+			openVRID(id), enabled(enabled), updateTranslation(true), updateRotation(true), updateScale(false), translation(translation), rotation(rotation) { }
+
+		SetDeviceTransform(uint32_t id, bool enabled, vr::HmdVector3d_t translation, vr::HmdQuaternion_t rotation, double scale) :
+			openVRID(id), enabled(enabled), updateTranslation(true), updateRotation(true), updateScale(true), translation(translation), rotation(rotation), scale(scale) { }
 	};
 
 	struct Request

README.md

@@ -1,14 +1,19 @@
 # OpenVR Space Calibrator
 
-Use tracked VR devices from one company with any other.
+This helps you use tracked VR devices from one company with any other. It aligns multiple tracking systems with a quick calibration step. It may not work for your setup, but there are many cases that work to a degree, and some work very well.
 
-This is **experimental software** and may not work for your setup. It's well-tested for the Rift with Vive trackers though, with a community of a few hundred users ([Discord][]). It also seems to work for various HMDs (Windows MR, Rift) with Vive controllers and Knuckles prototypes. A quick video of how this works using an old version (~v0.3) is available at https://www.youtube.com/watch?v=W3TnQd9JMl4.
+- Rift CV1 x Vive devices: works very well with the v2 (blue logo) trackers, v1 trackers (grey logo, not in production) have major interference issues in the IR spectrum, controller wands (both gen) and Index controllers work very well.
+- Rift S, Quest, Windows MR, other SLAM inside-out tracked HMDs x Vive devices: works very well when you aren't moving around the room far (e.g. Beat Saber) but a lot of walking around causes a nontrivial amount of drift between systems. Your results may vary depending on your space. It's possible some of this can be fixed in software with a better calibration algorithm.
+- Quest wireless streaming is particularly bad right now and requires frequent recalibration, but it does work for a short time until one of many factors causes it to drift. With wireless devices, moving slowly when calibrating and using the Slow or Very Slow calibration modes is effective at reducing the initial error.
+- Any non-Rift HMD x Touch controllers: does not work, the Oculus driver requires the HMD is a Rift. It's theoretically possible to work around this in software but as far as I know it hasn't been done as it would require a fair amount of reverse engineering effort.
 
-[Discord]: https://discord.gg/m7g2Wyj
+There is a community of a few thousand on [**Discord**](https://discord.gg/m7g2Wyj) and a newer community on [**Reddit**](https://www.reddit.com/r/MixedVR/). You may find the answer to your question in [the **wiki**](https://github.com/pushrax/OpenVR-SpaceCalibrator/wiki).
+
+A quick video of how this works using an old version (~v0.3) is available at https://www.youtube.com/watch?v=W3TnQd9JMl4. The user interface has been upgraded since then; the calibration is now done via a SteamVR dashboard menu, and there's much more configurability.
 
 ### Install
 
-Before following the directions below, download and run the installer for the [latest release](https://github.com/pushrax/OpenVR-SpaceCalibrator/releases). This will automatically set up SteamVR for use with multiple tracking systems (`activateMultipleDrivers: true`).
+Before following the directions below, download and run the installer for the [latest release](https://github.com/pushrax/OpenVR-SpaceCalibrator/releases). This will automatically set up SteamVR for use with multiple tracking systems (`activateMultipleDrivers: true`). There are many guides that say you need to edit the SteamVR config manually. You do not.
 
 ### Usage
 
@@ -39,7 +44,7 @@ You can calibrate without using the dashboard overlay by unminimizing Space Cali
 
 ### Compiling your own build
 
-Open `OpenVR-SpaceCalibrator.sln` in Visual Studio 2015 and build. There are no external dependencies.
+Open `OpenVR-SpaceCalibrator.sln` in Visual Studio 2017 and build. There are no external dependencies.
 
 ### The math
 

Version.h

@@ -0,0 +1,3 @@
+#pragma once
+
+#define SPACECAL_VERSION_STRING "1.3"

install/installer.nsi

@@ -98,7 +98,7 @@ Section "Install" SecInstall
 
 	File "..\LICENSE"
 	File "..\x64\Release\OpenVR-SpaceCalibrator.exe"
-	File "..\x64\Release\openvr_api.dll"
+	File "..\lib\openvr\lib\win64\openvr_api.dll"
 	File "..\OpenVR-SpaceCalibrator\manifest.vrmanifest"
 	File "..\OpenVR-SpaceCalibrator\icon.png"