private Matrix GetProjection(EVREye eye)
{
// Dunno why _vrSystem.GetProjectionMatrix doesn't work. Maybe different semantics of the matrix?
float left = 0, right = 0, top = 0, bottom = 0;
var near = 0.5f;
var far = 20.0f;
_vrSystem.GetProjectionRaw(eye, ref left, ref right, ref top, ref bottom);
left *= near;
right *= near;
top *= near;
bottom *= near;
return(Matrix.CreatePerspectiveOffCenter(left, right, bottom, top, near, far));
}
private SteamVR(System.IntPtr pHmd, System.IntPtr pCompositor, System.IntPtr pOverlay)
{
hmd = new CVRSystem(pHmd);
Debug.Log("Connected to " + hmd_TrackingSystemName + ":" + hmd_SerialNumber);
compositor = new CVRCompositor(pCompositor);
overlay = new CVROverlay(pOverlay);
var capacity = compositor.GetLastError(null, 0);
if (capacity > 1)
{
var result = new System.Text.StringBuilder((int)capacity);
compositor.GetLastError(result, capacity);
Debug.Log("Compositor - " + result);
}
// Hook up the render thread event.
var error = HmdError.None;
SetUnityRenderCallback(OpenVR.GetGenericInterface(IVRHmdDistortPresent_Version, ref error));
// Setup render values
uint w = 0, h = 0;
hmd.GetRecommendedRenderTargetSize(ref w, ref h);
sceneWidth = (float)w;
sceneHeight = (float)h;
float l_left = 0.0f, l_right = 0.0f, l_top = 0.0f, l_bottom = 0.0f;
hmd.GetProjectionRaw(Hmd_Eye.Eye_Left, ref l_left, ref l_right, ref l_top, ref l_bottom);
float r_left = 0.0f, r_right = 0.0f, r_top = 0.0f, r_bottom = 0.0f;
hmd.GetProjectionRaw(Hmd_Eye.Eye_Right, ref r_left, ref r_right, ref r_top, ref r_bottom);
tanHalfFov = new Vector2(
Mathf.Max(-l_left, l_right, -r_left, r_right),
Mathf.Max(-l_top, l_bottom, -r_top, r_bottom));
textureBounds = new VRTextureBounds_t[2];
textureBounds[0].uMin = 0.5f + 0.5f * l_left / tanHalfFov.x;
textureBounds[0].uMax = 0.5f + 0.5f * l_right / tanHalfFov.x;
textureBounds[0].vMin = 0.5f - 0.5f * l_bottom / tanHalfFov.y;
textureBounds[0].vMax = 0.5f - 0.5f * l_top / tanHalfFov.y;
textureBounds[1].uMin = 0.5f + 0.5f * r_left / tanHalfFov.x;
textureBounds[1].uMax = 0.5f + 0.5f * r_right / tanHalfFov.x;
textureBounds[1].vMin = 0.5f - 0.5f * r_bottom / tanHalfFov.y;
textureBounds[1].vMax = 0.5f - 0.5f * r_top / tanHalfFov.y;
// Grow the recommended size to account for the overlapping fov
sceneWidth = sceneWidth / Mathf.Max(textureBounds[0].uMax - textureBounds[0].uMin, textureBounds[1].uMax - textureBounds[1].uMin);
sceneHeight = sceneHeight / Mathf.Max(textureBounds[0].vMax - textureBounds[0].vMin, textureBounds[1].vMax - textureBounds[1].vMin);
aspect = tanHalfFov.x / tanHalfFov.y;
fieldOfView = 2.0f * Mathf.Atan(tanHalfFov.y) * Mathf.Rad2Deg;
eyes = new SteamVR_Utils.RigidTransform[] {
new SteamVR_Utils.RigidTransform(hmd.GetEyeToHeadTransform(Hmd_Eye.Eye_Left)),
new SteamVR_Utils.RigidTransform(hmd.GetEyeToHeadTransform(Hmd_Eye.Eye_Right))
};
if (SystemInfo.graphicsDeviceVersion.StartsWith("OpenGL"))
{
graphicsAPI = GraphicsAPIConvention.API_OpenGL;
}
else
{
graphicsAPI = GraphicsAPIConvention.API_DirectX;
}
SteamVR_Utils.Event.Listen("initializing", OnInitializing);
SteamVR_Utils.Event.Listen("calibrating", OnCalibrating);
SteamVR_Utils.Event.Listen("out_of_range", OnOutOfRange);
SteamVR_Utils.Event.Listen("device_connected", OnDeviceConnected);
SteamVR_Utils.Event.Listen("new_poses", OnNewPoses);
}
private void setup()
{
//init VR System and check for errors
var error = EVRInitError.None;
vrSystem = OpenVR.Init(ref error, EVRApplicationType.VRApplication_Scene);
if ((int)error != (int)EVRInitError.None)
{
log("KerbalVrPlugin started.");
}
else
{
err(error.ToString());
}
//rendervalues #########################################################
// Setup render values
uint w = 0, h = 0;
vrSystem.GetRecommendedRenderTargetSize(ref w, ref h);
float sceneWidth = (float)w;
float sceneHeight = (float)h;
float l_left = 0.0f, l_right = 0.0f, l_top = 0.0f, l_bottom = 0.0f;
vrSystem.GetProjectionRaw(EVREye.Eye_Left, ref l_left, ref l_right, ref l_top, ref l_bottom);
float r_left = 0.0f, r_right = 0.0f, r_top = 0.0f, r_bottom = 0.0f;
vrSystem.GetProjectionRaw(EVREye.Eye_Right, ref r_left, ref r_right, ref r_top, ref r_bottom);
Vector2 tanHalfFov = new Vector2(Mathf.Max(-l_left, l_right, -r_left, r_right), Mathf.Max(-l_top, l_bottom, -r_top, r_bottom));
//Setup rendertextures
hmdLeftEyeTexture = new Texture_t();
hmdLeftEyeTexture.eColorSpace = EColorSpace.Auto;
hmdRightEyeTexture = new Texture_t();
hmdRightEyeTexture.eColorSpace = EColorSpace.Auto;
//select Texture Type depending on RenderAPI (Currently only DirectX11 is tested)
switch (SystemInfo.graphicsDeviceType)
{
case UnityEngine.Rendering.GraphicsDeviceType.OpenGL2:
log("OpenGL2");
hmdLeftEyeTexture.eType = ETextureType.OpenGL;
hmdRightEyeTexture.eType = ETextureType.OpenGL;
break;
case UnityEngine.Rendering.GraphicsDeviceType.OpenGLCore:
log("OpenCore");
hmdLeftEyeTexture.eType = ETextureType.OpenGL;
hmdRightEyeTexture.eType = ETextureType.OpenGL;
break;
case UnityEngine.Rendering.GraphicsDeviceType.OpenGLES2:
log("OpenGLES2");
hmdLeftEyeTexture.eType = ETextureType.OpenGL;
hmdRightEyeTexture.eType = ETextureType.OpenGL;
break;
case UnityEngine.Rendering.GraphicsDeviceType.OpenGLES3:
log("OpenGLES3");
hmdLeftEyeTexture.eType = ETextureType.OpenGL;
hmdRightEyeTexture.eType = ETextureType.OpenGL;
break;
case UnityEngine.Rendering.GraphicsDeviceType.Direct3D9:
log("Direct3D9");
warn("DirectX 9 mode not Supported! There be Dragons!");
hmdLeftEyeTexture.eType = ETextureType.DirectX;
hmdRightEyeTexture.eType = ETextureType.DirectX;
break;
case UnityEngine.Rendering.GraphicsDeviceType.Direct3D11:
log("Direct3D11");
hmdLeftEyeTexture.eType = ETextureType.DirectX;
hmdRightEyeTexture.eType = ETextureType.DirectX;
break;
case UnityEngine.Rendering.GraphicsDeviceType.Direct3D12:
log("Direct3D12");
warn("DirectX 12 mode not implemented! There be Dragons!");
hmdLeftEyeTexture.eType = ETextureType.DirectX12;
hmdRightEyeTexture.eType = ETextureType.DirectX12;
break;
default:
throw (new Exception(SystemInfo.graphicsDeviceType.ToString() + " not supported"));
}
vrCompositor = OpenVR.Compositor;
if (!vrCompositor.CanRenderScene())
{
err("can not render scene");
}
}
public override void Initialize()
{
StringBuilder sb = new StringBuilder(512);
ETrackedPropertyError error = ETrackedPropertyError.TrackedProp_Success;
uint ret = _vrSystem.GetStringTrackedDeviceProperty(
OVR.k_unTrackedDeviceIndex_Hmd,
ETrackedDeviceProperty.Prop_TrackingSystemName_String,
sb,
512u,
ref error);
if (error != ETrackedPropertyError.TrackedProp_Success)
{
_deviceName = "<Unknown OpenVR Device>";
}
else
{
_deviceName = sb.ToString();
}
uint eyeWidth = 0;
uint eyeHeight = 0;
_vrSystem.GetRecommendedRenderTargetSize(ref eyeWidth, ref eyeHeight);
_leftEyeGT = GPUDevice.CreateTexture();
var descLeftEye = GPUTextureDescription.New2D((int)eyeWidth, (int)eyeHeight, 1, PixelFormat.R8G8B8A8_UNorm, msaaLevel: _options.EyeRenderTargetSampleCount);
_leftEyeGT.Init(ref descLeftEye);
_rightEyeGT = GPUDevice.CreateTexture();
var descRightEye = GPUTextureDescription.New2D((int)eyeWidth, (int)eyeHeight, 1, PixelFormat.R8G8B8A8_UNorm, msaaLevel: _options.EyeRenderTargetSampleCount);
_rightEyeGT.Init(ref descRightEye);
Matrix eyeToHeadLeft = ToSysMatrix(_vrSystem.GetEyeToHeadTransform(EVREye.Eye_Left));
Matrix.Invert(ref eyeToHeadLeft, out _headToEyeLeft);
Matrix eyeToHeadRight = ToSysMatrix(_vrSystem.GetEyeToHeadTransform(EVREye.Eye_Right));
Matrix.Invert(ref eyeToHeadRight, out _headToEyeRight);
// Default RH matrices
/*_projLeft = ToSysMatrix(_vrSystem.GetProjectionMatrix(EVREye.Eye_Left, 0.1f, 10000f));
* _projRight = ToSysMatrix(_vrSystem.GetProjectionMatrix(EVREye.Eye_Right, 0.1f, 10000f));*/
// Build LH projection matrices (https://github.com/ValveSoftware/openvr/wiki/IVRSystem::GetProjectionRaw)
float pLeft = 0;
float pRight = 0;
float pTop = 0;
float pBottom = 0;
// Default values
float zNear = 0.1f;
float zFar = 20000f;
_vrSystem.GetProjectionRaw(EVREye.Eye_Left, ref pLeft, ref pRight, ref pTop, ref pBottom);
_projLeft = Matrix.PerspectiveOffCenter(pLeft * zNear, pRight * zNear, pBottom * zNear * -1f, pTop * zNear * -1f, zNear, zFar);
_vrSystem.GetProjectionRaw(EVREye.Eye_Right, ref pLeft, ref pRight, ref pTop, ref pBottom);
_projRight = Matrix.PerspectiveOffCenter(pLeft * zNear, pRight * zNear, pBottom * zNear * -1f, pTop * zNear * -1f, zNear, zFar);
}
protected override void Render()
{
EnsureDllsLoaded();
Lock = true;
EVRInitError initError = EVRInitError.None;
Valve.VR.OpenVR.Init(ref initError);
if (initError != EVRInitError.None)
{
throw new Exception("OpenVR init error " + initError + ": " + Valve.VR.OpenVR.GetStringForHmdError(initError));
}
CVRSystem hmd = Valve.VR.OpenVR.System;
CVRCompositor compositor = Valve.VR.OpenVR.Compositor;
uint targetWidth = 0, targetHeight = 0;
hmd.GetRecommendedRenderTargetSize(ref targetWidth, ref targetHeight);
float sceneWidth = (float)targetWidth;
float sceneHeight = (float)targetHeight;
float l_left = 0.0f, l_right = 0.0f, l_top = 0.0f, l_bottom = 0.0f;
hmd.GetProjectionRaw(EVREye.Eye_Left, ref l_left, ref l_right, ref l_top, ref l_bottom);
float r_left = 0.0f, r_right = 0.0f, r_top = 0.0f, r_bottom = 0.0f;
hmd.GetProjectionRaw(EVREye.Eye_Right, ref r_left, ref r_right, ref r_top, ref r_bottom);
Vector2 tanHalfFov = new Vector2(
Math.Max(Math.Max(-l_left, l_right), Math.Max(-r_left, r_right)),
Math.Max(Math.Max(-l_top, l_bottom), Math.Max(-r_top, r_bottom))
);
VRTextureBounds_t[] textureBounds = new VRTextureBounds_t[2];
textureBounds[0].uMin = 0.5f + 0.5f * l_left / tanHalfFov.X;
textureBounds[0].uMax = 0.5f + 0.5f * l_right / tanHalfFov.X;
textureBounds[0].vMin = 0.5f - 0.5f * l_bottom / tanHalfFov.Y;
textureBounds[0].vMax = 0.5f - 0.5f * l_top / tanHalfFov.Y;
textureBounds[1].uMin = 0.5f + 0.5f * r_left / tanHalfFov.X;
textureBounds[1].uMax = 0.5f + 0.5f * r_right / tanHalfFov.X;
textureBounds[1].vMin = 0.5f - 0.5f * r_bottom / tanHalfFov.Y;
textureBounds[1].vMax = 0.5f - 0.5f * r_top / tanHalfFov.Y;
float aspect = tanHalfFov.X / tanHalfFov.Y;
float lookFov = (float)(2.0f * Math.Atan(tanHalfFov.Y) * 180 / Math.PI);
Texture2DDescription eyeTextureDescription = new Texture2DDescription()
{
Format = Format.R8G8B8A8_UNorm_SRgb,
ArraySize = 1,
MipLevels = 1,
Width = (int)targetWidth,
Height = (int)targetHeight,
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default,
BindFlags = BindFlags.RenderTarget,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None
};
Texture2DDescription eyeDepthTextureDescription = new Texture2DDescription()
{
Format = Format.D32_Float_S8X24_UInt,
ArraySize = 1,
MipLevels = 1,
Width = (int)targetWidth,
Height = (int)targetHeight,
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default,
BindFlags = BindFlags.DepthStencil,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None
};
///// CUBE
//var cubeEffect = new SharpDX.Toolkit.Graphics.BasicEffect(_gd)
//{
// //PreferPerPixelLighting = false,
// //TextureEnabled = false,
// LightingEnabled = true,
// //DiffuseColor = new Vector4(0.5f,0.5f,0.5f,1f),
// Sampler = _gd.SamplerStates.AnisotropicClamp
//};
//cubeEffect.EnableDefaultLighting();
//var cube = SharpDX.Toolkit.Graphics.GeometricPrimitive.Teapot.New(_gd, 1, 8, false);
///// END
using (_device = new Device(DriverType.Hardware, DeviceCreationFlags.BgraSupport, new FeatureLevel[] { FeatureLevel.Level_10_0 }))
using (DeviceContext context = _device.ImmediateContext)
using (_gd = SharpDX.Toolkit.Graphics.GraphicsDevice.New(_device))
//using (SharpDX.Toolkit.Graphics.GeometricPrimitive primitive = GraphicTools.CreateGeometry(_projection, _gd, false))
using (customEffectL = GetCustomEffect(_gd))
using (customEffectR = GetCustomEffect(_gd))
using (Texture2D leftEye = new Texture2D(_device, eyeTextureDescription))
using (RenderTargetView leftEyeView = new RenderTargetView(_device, leftEye))
using (Texture2D leftEyeDepth = new Texture2D(_device, eyeDepthTextureDescription))
using (DepthStencilView leftEyeDepthView = new DepthStencilView(_device, leftEyeDepth))
using (Texture2D rightEye = new Texture2D(_device, eyeTextureDescription))
using (RenderTargetView rightEyeView = new RenderTargetView(_device, rightEye))
using (Texture2D rightEyeDepth = new Texture2D(_device, eyeDepthTextureDescription))
using (DepthStencilView rightEyeDepthView = new DepthStencilView(_device, rightEyeDepth))
using (vrui = new VRUI(_device, _gd))
{
//primitive = GraphicTools.CreateGeometry(Projection, _gd, false);
Stopwatch stopwatch = new Stopwatch();
Texture_t leftEyeTex = new Texture_t()
{
eColorSpace = EColorSpace.Gamma, eType = EGraphicsAPIConvention.API_DirectX, handle = leftEye.NativePointer
};
Texture_t rightEyeTex = new Texture_t()
{
eColorSpace = EColorSpace.Gamma, eType = EGraphicsAPIConvention.API_DirectX, handle = rightEye.NativePointer
};
TrackedDevicePose_t[] renderPoseArray = new TrackedDevicePose_t[16];
TrackedDevicePose_t[] gamePoseArray = new TrackedDevicePose_t[16];
TrackedDevicePose_t pose = new TrackedDevicePose_t();
try
{
// Start with default background
SetDefaultScene();
while (!abort)
{
UpdateContentIfRequested();
float deltaTime = (float)stopwatch.Elapsed.TotalSeconds;
stopwatch.Restart();
compositor.WaitGetPoses(renderPoseArray, gamePoseArray);
if (renderPoseArray[Valve.VR.OpenVR.k_unTrackedDeviceIndex_Hmd].bPoseIsValid)
{
pose = gamePoseArray[Valve.VR.OpenVR.k_unTrackedDeviceIndex_Hmd];
}
foreach (EVREye eye in new EVREye[] { EVREye.Eye_Left, EVREye.Eye_Right })
{
DepthStencilView currentEyeDepthView = (eye == EVREye.Eye_Left) ? leftEyeDepthView : rightEyeDepthView;
RenderTargetView currentEyeView = (eye == EVREye.Eye_Left) ? leftEyeView : rightEyeView;
// Setup targets and viewport for rendering
context.OutputMerger.SetTargets(currentEyeDepthView, currentEyeView);
context.ClearDepthStencilView(currentEyeDepthView, DepthStencilClearFlags.Depth, 1.0f, 0);
context.ClearRenderTargetView(currentEyeView, Color.Black);
context.Rasterizer.SetViewport(new Viewport(0, 0, (int)targetWidth, (int)targetHeight, 0.0f, 1.0f));
Quaternion lookRotation; // = pose.mDeviceToAbsoluteTracking.GetRotation();
Vector3 lookPosition; // = pose.mDeviceToAbsoluteTracking.GetPosition();
Vector3 scale;
Matrix eyePose = hmd.GetEyeToHeadTransform(eye).RebuildTRSMatrix() * pose.mDeviceToAbsoluteTracking.RebuildTRSMatrix();
eyePose.Decompose(out scale, out lookRotation, out lookPosition);
Matrix rotationMatrix = Matrix.RotationQuaternion(lookRotation);
Vector3 lookUp = Vector3.Transform(Vector3.Up, rotationMatrix).ToVector3();
Vector3 lookAt = Vector3.Transform(Vector3.ForwardRH, rotationMatrix).ToVector3();
//Console.WriteLine($"OpenVR {eye} up: {lookUp:00.00} at: {lookAt:00.00} position:{lookPosition:00.00}");
Matrix viewMatrix = Matrix.LookAtRH(lookPosition, lookPosition + lookAt, lookUp);
Matrix pm1 = Matrix.PerspectiveFovLH(lookFov * ((float)Math.PI / 180f), aspect, 0.001f, 100.0f);
//Matrix pm2 = hmd.GetProjectionMatrix(eye, 0.001f, 100f, EGraphicsAPIConvention.API_DirectX).ToProjMatrix();
Matrix projectionMatrix = pm1;
Matrix worldMatrix = Matrix.Translation(lookPosition);
if (Logic.Instance.settings.OpenVRReverse)
{
worldMatrix = Matrix.RotationY(180) * worldMatrix;
}
Matrix MVP = worldMatrix * viewMatrix * projectionMatrix;
customEffectL.Parameters["WorldViewProj"].SetValue(MVP);
customEffectR.Parameters["WorldViewProj"].SetValue(MVP);
lock (localCritical)
{
if (eye == EVREye.Eye_Left)
{
primitive?.Draw(customEffectL);
}
if (eye == EVREye.Eye_Right)
{
primitive?.Draw(customEffectR);
}
}
if (eye == EVREye.Eye_Left)
{
Vector3 fixedLookPosition = Vector3.Transform(lookPosition, MVP).ToVector3();
Vector3 fixedLookAt = Vector3.Transform(lookPosition + Vector3.ForwardLH, MVP).ToVector3() - fixedLookPosition;
Vector3 fixedLookUp = Vector3.Transform(lookPosition + Vector3.Up, MVP).ToVector3() - fixedLookPosition;
fixedLookAt.Normalize();
fixedLookUp.Normalize();
Quaternion fixedLookRotation = Quaternion.LookAtRH(Vector3.Zero, fixedLookAt, fixedLookUp);
//fixedLookRotation.X *= -1;
//fixedLookRotation.Y *= -1;
fixedLookRotation.Z *= -1;
//if(eye == EVREye.Eye_Left)
// fixedLookRotation.Invert();
//Mirror effect of rotation along z axis by flipping x and y elements of the quaternion.
//http://stackoverflow.com/a/32482386/785171
//float t = fixedLookRotation.X;
//fixedLookRotation.X = fixedLookRotation.Y;
//fixedLookRotation.Y = t;
//fixedLookRotation = new Quaternion(1, 0, 0, 0) * fixedLookRotation;
//fixedLookRotation = new Quaternion(0, 0, 1, 0) * fixedLookRotation;
LoggerManager.Publish("openvr.forward", fixedLookAt);
LoggerManager.Publish("openvr.up", fixedLookUp);
// TODO: normalize
ProvideLook?.Invoke(fixedLookPosition, fixedLookRotation, lookFov);
}
// reset UI position every frame if it is not visible
if (vrui.isUIHidden)
{
vrui.SetWorldPosition(viewMatrix.Forward, lookPosition, false);
}
vrui.Draw(Media, currentTime, Duration);
vrui.Render(deltaTime, viewMatrix, projectionMatrix, lookPosition, ShouldShowVRUI);
//// controllers:
//cubeEffect.View = viewMatrix;
//cubeEffect.Projection = projectionMatrix;
//for (uint controller = 1 /*skip hmd*/; controller < Valve.VR.OpenVR.k_unMaxTrackedDeviceCount; controller++)
//{
// VRControllerState_t controllerState = default(VRControllerState_t);
// //var controllerPose = renderPoseArray[controller];
// //if (hmd.GetControllerState(controller, ref controllerState)) {
// Vector3 pos = renderPoseArray[controller].mDeviceToAbsoluteTracking.GetPosition();
// Quaternion rot = renderPoseArray[controller].mDeviceToAbsoluteTracking.GetRotation();
// rot = rot * new Quaternion(0, 1, 0, 0);
// float s = controllerState.ulButtonPressed > 0 ? 0.5f : 0.1f;
// cubeEffect.World = Matrix.Scaling(s) * Matrix.RotationQuaternion(rot) * Matrix.Translation(pos);
// cube.Draw(cubeEffect);
// //}
//}
}
// RENDER TO HMD
EVRCompositorError errorLeft = compositor.Submit(
EVREye.Eye_Left,
ref leftEyeTex,
ref textureBounds[0],
EVRSubmitFlags.Submit_Default
);
EVRCompositorError errorRight = compositor.Submit(
EVREye.Eye_Right,
ref rightEyeTex,
ref textureBounds[1],
EVRSubmitFlags.Submit_Default
);
if (errorLeft != EVRCompositorError.None)
{
throw new HeadsetError("VR Compositor failure (left): " + errorLeft);
}
if (errorRight != EVRCompositorError.None)
{
throw new HeadsetError("VR Compositor failure (right): " + errorRight);
}
}
;
}
finally
{
Valve.VR.OpenVR.Shutdown();
primitive?.Dispose();
context.ClearState();
context.Flush();
}
}
}
private SteamVR(System.IntPtr pHmd, System.IntPtr pCompositor, System.IntPtr pOverlay)
{
hmd = new CVRSystem(pHmd);
Debug.Log("Connected to " + hmd_TrackingSystemName + ":" + hmd_SerialNumber);
compositor = new CVRCompositor(pCompositor);
overlay = new CVROverlay(pOverlay);
// Setup render values
uint w = 0, h = 0;
hmd.GetRecommendedRenderTargetSize(ref w, ref h);
sceneWidth = (float)w;
sceneHeight = (float)h;
float l_left = 0.0f, l_right = 0.0f, l_top = 0.0f, l_bottom = 0.0f;
hmd.GetProjectionRaw(EVREye.Eye_Left, ref l_left, ref l_right, ref l_top, ref l_bottom);
float r_left = 0.0f, r_right = 0.0f, r_top = 0.0f, r_bottom = 0.0f;
hmd.GetProjectionRaw(EVREye.Eye_Right, ref r_left, ref r_right, ref r_top, ref r_bottom);
tanHalfFov = new Vector2(
Mathf.Max(-l_left, l_right, -r_left, r_right),
Mathf.Max(-l_top, l_bottom, -r_top, r_bottom));
textureBounds = new VRTextureBounds_t[2];
textureBounds[0].uMin = 0.5f + 0.5f * l_left / tanHalfFov.x;
textureBounds[0].uMax = 0.5f + 0.5f * l_right / tanHalfFov.x;
textureBounds[0].vMin = 0.5f - 0.5f * l_bottom / tanHalfFov.y;
textureBounds[0].vMax = 0.5f - 0.5f * l_top / tanHalfFov.y;
textureBounds[1].uMin = 0.5f + 0.5f * r_left / tanHalfFov.x;
textureBounds[1].uMax = 0.5f + 0.5f * r_right / tanHalfFov.x;
textureBounds[1].vMin = 0.5f - 0.5f * r_bottom / tanHalfFov.y;
textureBounds[1].vMax = 0.5f - 0.5f * r_top / tanHalfFov.y;
Unity.SetSubmitParams(textureBounds[0], textureBounds[1], EVRSubmitFlags.Submit_Default);
// Grow the recommended size to account for the overlapping fov
sceneWidth = sceneWidth / Mathf.Max(textureBounds[0].uMax - textureBounds[0].uMin, textureBounds[1].uMax - textureBounds[1].uMin);
sceneHeight = sceneHeight / Mathf.Max(textureBounds[0].vMax - textureBounds[0].vMin, textureBounds[1].vMax - textureBounds[1].vMin);
aspect = tanHalfFov.x / tanHalfFov.y;
fieldOfView = 2.0f * Mathf.Atan(tanHalfFov.y) * Mathf.Rad2Deg;
eyes = new SteamVR_Utils.RigidTransform[] {
new SteamVR_Utils.RigidTransform(hmd.GetEyeToHeadTransform(EVREye.Eye_Left)),
new SteamVR_Utils.RigidTransform(hmd.GetEyeToHeadTransform(EVREye.Eye_Right))
};
if (SystemInfo.graphicsDeviceVersion.StartsWith("OpenGL"))
{
graphicsAPI = EGraphicsAPIConvention.API_OpenGL;
}
else
{
graphicsAPI = EGraphicsAPIConvention.API_DirectX;
}
SteamVR_Utils.Event.Listen("initializing", OnInitializing);
SteamVR_Utils.Event.Listen("calibrating", OnCalibrating);
SteamVR_Utils.Event.Listen("out_of_range", OnOutOfRange);
SteamVR_Utils.Event.Listen("device_connected", OnDeviceConnected);
SteamVR_Utils.Event.Listen("new_poses", OnNewPoses);
}
private SteamVR(System.IntPtr pHmd, System.IntPtr pCompositor, System.IntPtr pOverlay)
{
hmd = new CVRSystem(pHmd);
Debug.Log("Connected to " + hmd_TrackingSystemName + ":" + hmd_SerialNumber);
compositor = new CVRCompositor(pCompositor);
overlay = new CVROverlay(pOverlay);
var device = new UnityGraphicsDevice();
GetUnityGraphicsDevice(ref device);
switch (device.type)
{
case GfxDeviceRenderer.kGfxRendererD3D11:
compositor.SetGraphicsDevice(Compositor_DeviceType.D3D11, device.ptr);
break;
case GfxDeviceRenderer.kGfxRendererOpenGL:
compositor.SetGraphicsDevice(Compositor_DeviceType.OpenGL, device.ptr);
break;
default:
throw new System.Exception("Unsupported device type.");
}
var capacity = compositor.GetLastError(null, 0);
if (capacity > 1)
{
var result = new System.Text.StringBuilder((int)capacity);
compositor.GetLastError(result, capacity);
Debug.Log("Compositor - " + result);
}
// Register for a callback if our graphics device goes away, so we can properly clean up.
var resetDelegate = new UnityResetDelegate(SteamVR.SafeDispose);
callbackHandle = GCHandle.Alloc(resetDelegate);
SetUnityResetCallback(Marshal.GetFunctionPointerForDelegate(resetDelegate));
// Hook up the render thread present event just in case we wind up needing to use this.
var error = HmdError.None;
SetUnityRenderCallback(OpenVR.GetGenericInterface(IVRHmdDistortPresent_Version, ref error));
// Setup render values
uint w = 0, h = 0;
hmd.GetRecommendedRenderTargetSize(ref w, ref h);
sceneWidth = (float)w;
sceneHeight = (float)h;
float l_left = 0.0f, l_right = 0.0f, l_top = 0.0f, l_bottom = 0.0f;
hmd.GetProjectionRaw(Hmd_Eye.Eye_Left, ref l_left, ref l_right, ref l_top, ref l_bottom);
float r_left = 0.0f, r_right = 0.0f, r_top = 0.0f, r_bottom = 0.0f;
hmd.GetProjectionRaw(Hmd_Eye.Eye_Right, ref r_left, ref r_right, ref r_top, ref r_bottom);
tanHalfFov = new Vector2(
Mathf.Max(-l_left, l_right, -r_left, r_right),
Mathf.Max(-l_top, l_bottom, -r_top, r_bottom));
textureBounds = new VRTextureBounds_t[2];
textureBounds[0].uMin = 0.5f + 0.5f * l_left / tanHalfFov.x;
textureBounds[0].uMax = 0.5f + 0.5f * l_right / tanHalfFov.x;
textureBounds[0].vMin = 0.5f - 0.5f * l_bottom / tanHalfFov.y;
textureBounds[0].vMax = 0.5f - 0.5f * l_top / tanHalfFov.y;
textureBounds[1].uMin = 0.5f + 0.5f * r_left / tanHalfFov.x;
textureBounds[1].uMax = 0.5f + 0.5f * r_right / tanHalfFov.x;
textureBounds[1].vMin = 0.5f - 0.5f * r_bottom / tanHalfFov.y;
textureBounds[1].vMax = 0.5f - 0.5f * r_top / tanHalfFov.y;
// Grow the recommended size to account for the overlapping fov
sceneWidth = sceneWidth / Mathf.Max(textureBounds[0].uMax - textureBounds[0].uMin, textureBounds[1].uMax - textureBounds[1].uMin);
sceneHeight = sceneHeight / Mathf.Max(textureBounds[0].vMax - textureBounds[0].vMin, textureBounds[1].vMax - textureBounds[1].vMin);
aspect = tanHalfFov.x / tanHalfFov.y;
fieldOfView = 2.0f * Mathf.Atan(tanHalfFov.y) * Mathf.Rad2Deg;
eyes = new SteamVR_Utils.RigidTransform[] {
new SteamVR_Utils.RigidTransform(hmd.GetEyeToHeadTransform(Hmd_Eye.Eye_Left)),
new SteamVR_Utils.RigidTransform(hmd.GetEyeToHeadTransform(Hmd_Eye.Eye_Right))
};
SteamVR_Utils.Event.Listen("initializing", OnInitializing);
SteamVR_Utils.Event.Listen("calibrating", OnCalibrating);
SteamVR_Utils.Event.Listen("out_of_range", OnOutOfRange);
SteamVR_Utils.Event.Listen("device_connected", OnDeviceConnected);
SteamVR_Utils.Event.Listen("new_poses", OnNewPoses);
}