public void UpdateOverlay()
{
var overlay = OpenVR.Overlay;
if (overlay == null)
{
return;
}
if (texture != null)
{
var error = overlay.ShowOverlay(handle);
if (error == EVROverlayError.InvalidHandle || error == EVROverlayError.UnknownOverlay)
{
if (overlay.FindOverlay(key, ref handle) != EVROverlayError.None)
{
return;
}
}
var tex = new Texture_t();
tex.handle = texture.GetNativeTexturePtr();
tex.eType = SteamVR.instance.textureType;
tex.eColorSpace = EColorSpace.Auto;
overlay.SetOverlayTexture(handle, ref tex);
overlay.SetOverlayAlpha(handle, alpha);
overlay.SetOverlayWidthInMeters(handle, scale);
overlay.SetOverlayAutoCurveDistanceRangeInMeters(handle, curvedRange.x, curvedRange.y);
var textureBounds = new VRTextureBounds_t();
textureBounds.uMin = (0 + uvOffset.x) * uvOffset.z;
textureBounds.vMin = (1 + uvOffset.y) * uvOffset.w;
textureBounds.uMax = (1 + uvOffset.x) * uvOffset.z;
textureBounds.vMax = (0 + uvOffset.y) * uvOffset.w;
overlay.SetOverlayTextureBounds(handle, ref textureBounds);
var vecMouseScale = new HmdVector2_t();
vecMouseScale.v0 = mouseScale.x;
vecMouseScale.v1 = mouseScale.y;
overlay.SetOverlayMouseScale(handle, ref vecMouseScale);
var vrcam = SteamVR_Render.Top();
if (vrcam != null && vrcam.origin != null)
{
var offset = new SteamVR_Utils.RigidTransform(vrcam.origin, transform);
offset.pos.x /= vrcam.origin.localScale.x;
offset.pos.y /= vrcam.origin.localScale.y;
offset.pos.z /= vrcam.origin.localScale.z;
offset.pos.z += distance;
var t = offset.ToHmdMatrix34();
overlay.SetOverlayTransformAbsolute(handle, SteamVR.settings.trackingSpace, ref t);
}
overlay.SetOverlayInputMethod(handle, inputMethod);
if (curved || antialias)
{
highquality = true;
}
if (highquality)
{
overlay.SetHighQualityOverlay(handle);
overlay.SetOverlayFlag(handle, VROverlayFlags.Curved, curved);
overlay.SetOverlayFlag(handle, VROverlayFlags.RGSS4X, antialias);
}
else if (overlay.GetHighQualityOverlay() == handle)
{
overlay.SetHighQualityOverlay(OpenVR.k_ulOverlayHandleInvalid);
}
}
else
{
overlay.HideOverlay(handle);
}
}
private SteamVR()
{
hmd = OpenVR.System;
Debug.Log("<b>[SteamVR]</b> Initialized. Connected to " + hmd_TrackingSystemName + ":" + hmd_SerialNumber);
compositor = OpenVR.Compositor;
overlay = OpenVR.Overlay;
// 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;
// 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))
};
switch (SystemInfo.graphicsDeviceType)
{
#if (UNITY_5_4)
case UnityEngine.Rendering.GraphicsDeviceType.OpenGL2:
#endif
case UnityEngine.Rendering.GraphicsDeviceType.OpenGLCore:
case UnityEngine.Rendering.GraphicsDeviceType.OpenGLES2:
case UnityEngine.Rendering.GraphicsDeviceType.OpenGLES3:
textureType = ETextureType.OpenGL;
break;
#if !(UNITY_5_4)
case UnityEngine.Rendering.GraphicsDeviceType.Vulkan:
textureType = ETextureType.Vulkan;
break;
#endif
default:
textureType = ETextureType.DirectX;
break;
}
SteamVR_Events.Initializing.Listen(OnInitializing);
SteamVR_Events.Calibrating.Listen(OnCalibrating);
SteamVR_Events.OutOfRange.Listen(OnOutOfRange);
SteamVR_Events.DeviceConnected.Listen(OnDeviceConnected);
SteamVR_Events.NewPoses.Listen(OnNewPoses);
}
public void ReadConfig()
{
try
{
var mCam = new HmdMatrix34_t();
var readCamMatrix = false;
object c = config; // box
var lines = System.IO.File.ReadAllLines(configPath);
foreach (var line in lines)
{
var split = line.Split('=');
if (split.Length == 2)
{
var key = split[0];
if (key == "m")
{
var values = split[1].Split(',');
if (values.Length == 12)
{
mCam.m0 = float.Parse(values[0]);
mCam.m1 = float.Parse(values[1]);
mCam.m2 = float.Parse(values[2]);
mCam.m3 = float.Parse(values[3]);
mCam.m4 = float.Parse(values[4]);
mCam.m5 = float.Parse(values[5]);
mCam.m6 = float.Parse(values[6]);
mCam.m7 = float.Parse(values[7]);
mCam.m8 = float.Parse(values[8]);
mCam.m9 = float.Parse(values[9]);
mCam.m10 = float.Parse(values[10]);
mCam.m11 = float.Parse(values[11]);
readCamMatrix = true;
}
}
#if !UNITY_METRO
else if (key == "disableStandardAssets")
{
var field = c.GetType().GetField(key);
if (field != null)
{
field.SetValue(c, bool.Parse(split[1]));
}
}
else
{
var field = c.GetType().GetField(key);
if (field != null)
{
field.SetValue(c, float.Parse(split[1]));
}
}
#endif
}
}
config = (Config)c; //unbox
// Convert calibrated camera matrix settings.
if (readCamMatrix)
{
var t = new SteamVR_Utils.RigidTransform(mCam);
config.x = t.pos.x;
config.y = t.pos.y;
config.z = t.pos.z;
var angles = t.rot.eulerAngles;
config.rx = angles.x;
config.ry = angles.y;
config.rz = angles.z;
}
}
catch { }
// Clear target so AttachToCamera gets called to pick up any changes.
target = null;
#if !UNITY_METRO
// Listen for changes.
if (watcher == null)
{
var fi = new System.IO.FileInfo(configPath);
watcher = new System.IO.FileSystemWatcher(fi.DirectoryName, fi.Name);
watcher.NotifyFilter = System.IO.NotifyFilters.LastWrite;
watcher.Changed += new System.IO.FileSystemEventHandler(OnChanged);
watcher.EnableRaisingEvents = true;
}
}