IVRSystem::GetTrackedDeviceIndexForControllerRole doesn't work?

[zezba9000]

When I call "GetTrackedDeviceIndexForControllerRole" for "TrackedControllerRole_LeftHand" it will always return "max uint" aka "(vr::TrackedDeviceIndex_t)(-1)".

"TrackedControllerRole_RightHand" is working correctly but didn't the first couple of times.

Am I hitting a bug or missing some other step?
I init the system like so: "vr::VR_Init(&error, vr::EVRApplicationType::VRApplication_Background);"

For now I'm forced to do the hack of force setting LeftHand to 3 and RightHand to 2.

Using OpenVR v1.0.14

[Karutoh]

How are you obtraining the role, just fyi not talking about what method/function you used, more like when did you obtain it.

[JoeLudwig]

What hardware are you using? On Apr 21, 2018 3:00 AM, Arron Nelson <notifications@github.com> wrote: How are you obtraining the role, just fyi not talking about what method/function you used. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub<#780 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AASiKE3qwajqS22V7Cw0u0291CtOcDrPks5tqy2IgaJpZM4TY0hq>.

[bddckr]

My observations:

Roles aren't assigned immediately and can be changing at runtime even. SteamVR assigns left+right roles based on position relative to the HMD when turning on a tracked device. If you for example start with one tracked device it will get the right role most likely, then later you turn on another tracked device it can even switch the existing role to be left and the new tracked device gets right.

The API is telling you about that by returning the invalid index:

openvr/headers/openvr.h

Line 158 in 7027f51

static const uint32_t k_unTrackedDeviceIndexInvalid = 0xFFFFFFFF;

[zezba9000]

@JoeLudwig Here is some test code I was playing with I was getting the issue on.
Hardware is Vive Pre. Will try with none pre hardware.

@bddckr I will try testing invoking the method in a loop and repo what you're saying.

#include "stdafx.h"
#include "openvr.h"
#include <Windows.h>

int main()
{
	vr::EVRInitError error;
	auto system = vr::VR_Init(&error, vr::EVRApplicationType::VRApplication_Background);
	if (system == nullptr) return 1;

	// --------------------------------- (use to tell SteamVR to exit)
	//vr::VREvent_Data_t data = { 0 };
	//vr::VRServerDriverHost()->VendorSpecificEvent(trackedDeviceIndex, vr::EVREventType::VREvent_Quit, data, 0);
	
	// --------------------------------- (use to validate HMD is tracking and its status)
	bool hmdAttached = vr::VR_IsHmdPresent();
	bool isConnected = system->IsTrackedDeviceConnected(0);
	auto trackingStatus = system->GetTrackedDeviceActivityLevel(0);

	// --------------------------------- (use to get controller battery status)
	auto leftHand = system->GetTrackedDeviceIndexForControllerRole(vr::ETrackedControllerRole::TrackedControllerRole_LeftHand);// doesn't always work, bug or missing something?
	auto rightHand = system->GetTrackedDeviceIndexForControllerRole(vr::ETrackedControllerRole::TrackedControllerRole_RightHand);
	bool hasBattery_Left = system->GetBoolTrackedDeviceProperty(leftHand, vr::ETrackedDeviceProperty::Prop_DeviceProvidesBatteryStatus_Bool);
	bool hasBattery_Right = system->GetBoolTrackedDeviceProperty(rightHand, vr::ETrackedDeviceProperty::Prop_DeviceProvidesBatteryStatus_Bool);
	float leftBattery = -1, rightBattery = -1;
	if (hasBattery_Left) leftBattery = system->GetFloatTrackedDeviceProperty(leftHand, vr::ETrackedDeviceProperty::Prop_DeviceBatteryPercentage_Float);
	if (hasBattery_Right) rightBattery = system->GetFloatTrackedDeviceProperty(rightHand, vr::ETrackedDeviceProperty::Prop_DeviceBatteryPercentage_Float);

	// --------------------------------- (use to validate chaperone is calibrated)
	auto chap = vr::VRChaperone();
	auto chapState = chap->GetCalibrationState();
	if (chapState != vr::ChaperoneCalibrationState::ChaperoneCalibrationState_OK)
	{
		// do stuff...
	}

	// --------------------------------- (use for Quick Calibrate)
	auto chapSetup = vr::VRChaperoneSetup();
	vr::HmdMatrix34_t matrix;
	ZeroMemory(&matrix, sizeof(vr::HmdMatrix34_t));

	matrix.m[0][0] = 1;
	matrix.m[1][1] = 1;
	matrix.m[2][2] = 1;

	matrix.m[0][3] = -0;
	matrix.m[1][3] = -10;
	matrix.m[2][3] = -0;

	chapSetup->SetWorkingPlayAreaSize(1, 1);
	//chapSetup->SetWorkingStandingZeroPoseToRawTrackingPose(&matrix);
	chapSetup->SetWorkingSeatedZeroPoseToRawTrackingPose(&matrix);
	//chapSetup->ReloadFromDisk(vr::EChaperoneConfigFile::EChaperoneConfigFile_Live);
	chapSetup->CommitWorkingCopy(vr::EChaperoneConfigFile::EChaperoneConfigFile_Live);
	
	// --------------------------------- (use to force the SteamVR tracking type)
	auto comp = vr::VRCompositor();
	comp->SetTrackingSpace(vr::ETrackingUniverseOrigin::TrackingUniverseSeated);

	vr::VR_Shutdown();
    return 0;
}

[zezba9000]

Ok looks like roles are invalid unless its tracking? How to I get a device index just to get its batter level regardless or not if its tracking?

Maybe "GetTrackedDeviceIndexForControllerRole" just isn't the correct method to invoke?
How to I get a list of all devices or all controllers, etc connected regardless of role?

So looks like this isn't a bug. Sorry about that.

[JoeLudwig]

You can iterate over all tracked device indices up to the max. (There's a constant for that.. vr::k_unMaxTrackedDeviceCount I think) get the tracked device class for each one and look for devices that say they're controllers. The roles aren't assigned u til after the devices have a pose because we use the head and controller poses to guess which one is in which hand. On Apr 23, 2018 11:19 AM, Andrew <notifications@github.com> wrote: Ok looks like roles are invalid unless its tracking? How to I get a device index just to get its batter level regardless or not if its tracking? Maybe "GetTrackedDeviceIndexForControllerRole" just isn't the correct method to invoke? How to I get a list of all devices or all controllers, etc connected regardless of role? So looks like this isn't a bug. Sorry about that. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<#780 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AASiKObuX9AL9x3-_0citX5CILdN6VvJks5trkWSgaJpZM4TY0hq>.

[zezba9000]

Ok got it working as needed tnx.

Now the only other major issue we have with OpenVR used as a Utility is not being able to tell the SteamVR runtime / vrmonitor.exe to exit gracefully: #779