void OculusVRDebug::OnRender(const ovrSession session, const ovrTrackingState &trackingState, const ovrEyeRenderDesc *eyeRenderDescs, const ovrSizei &eyeTextureSize)
{
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glActiveTexture(GL_TEXTURE0);
static const float xPos = -0.3f;
static const float ySpacing = 0.05f;
std::stringstream statsStream;
char buf[128];
float hmdYaw, hmdPitch, hmdRoll;
ovrHmdDesc hmdDesc = ovr_GetHmdDesc(session);
OVR::Quatf headOrientation(trackingState.HeadPose.ThePose.Orientation);
headOrientation.GetEulerAngles<OVR::Axis_Y, OVR::Axis_X, OVR::Axis_Z>(&hmdYaw, &hmdPitch, &hmdRoll);
OVR::OVR_sprintf(buf, sizeof(buf), "HMD YPR:%2.0f %2.0f %2.0f HMD: %s", hmdYaw * PIdiv180inv, hmdPitch * PIdiv180inv, hmdRoll * PIdiv180inv, hmdDesc.ProductName);
m_font->drawText(buf, xPos, 0.1f, 0.f);
OVR::OVR_sprintf(buf, sizeof(buf), "FPS: %.1f ms/frame: %.1f Frame: %03d %d", m_fps, m_secondsPerFrame * 1000.0f, m_frameCounter, m_totalFrameCounter % 2);
m_font->drawText(buf, xPos, 0.1f - ySpacing, 0.f);
OVR::OVR_sprintf(buf, sizeof(buf), "Pos: %2.2f %2.2f %2.2f Tracking: %s", g_cameraDirector.GetActiveCamera()->Position().m_x,
g_cameraDirector.GetActiveCamera()->Position().m_y,
g_cameraDirector.GetActiveCamera()->Position().m_z,
trackingState.StatusFlags & ovrStatus_PositionTracked ? "YES" : "NO");
m_font->drawText(buf, xPos, 0.1f - ySpacing * 2.f, 0.f);
OVR::OVR_sprintf(buf, sizeof(buf), "EyeHeight: %2.2f IPD: %2.1fmm", ovr_GetFloat(session, OVR_KEY_EYE_HEIGHT, 0.f), ovr_GetFloat(session, OVR_KEY_IPD, 0.f) * 1000.f);
m_font->drawText(buf, xPos, 0.1f - ySpacing * 3.f, 0.f);
// Average FOVs
OVR::FovPort leftFov = eyeRenderDescs[0].Fov;
OVR::FovPort rightFov = eyeRenderDescs[1].Fov;
// Rendered size changes based on selected options & dynamic rendering.
OVR::OVR_sprintf(buf, sizeof(buf), "FOV %2.1fx%2.1f, Resolution: %ix%i", (leftFov.GetHorizontalFovDegrees() + rightFov.GetHorizontalFovDegrees()) * 0.5f,
(leftFov.GetVerticalFovDegrees() + rightFov.GetVerticalFovDegrees()) * 0.5,
eyeTextureSize.w, eyeTextureSize.h);
m_font->drawText(buf, xPos, 0.1f - ySpacing * 4.f, 0.f);
// latency readings
float latencies[5] = {};
if (ovr_GetFloatArray(session, "DK2Latency", latencies, 5) == 5)
{
char text[5][32];
for (int i = 0; i < 5; ++i)
{
FormatLatencyReading(text[i], sizeof(text[i]), latencies[i]);
}
statsStream.str("");
statsStream << "M2P Latency Ren: " << text[0] << " TWrp: " << text[1];
m_font->drawText(statsStream.str(), xPos, 0.1f - ySpacing * 5.f, 0.f);
statsStream.str("");
statsStream << "PostPresent: " << text[2] << " Err: " << text[3] << " " << text[4];
m_font->drawText(statsStream.str(), xPos, 0.1f - ySpacing * 6.f, 0.f);
}
}
float OculusBaseDisplayPlugin::getIPD() const {
float result = OVR_DEFAULT_IPD;
#if (OVR_MAJOR_VERSION >= 6)
result = ovr_GetFloat(_session, OVR_KEY_IPD, result);
#endif
return result;
}
void OculusBaseDisplayPlugin::activate() {
_session = acquireOculusSession();
_hmdDesc = ovr_GetHmdDesc(_session);
_ipd = ovr_GetFloat(_session, OVR_KEY_IPD, _ipd);
glm::uvec2 eyeSizes[2];
_viewScaleDesc.HmdSpaceToWorldScaleInMeters = 1.0f;
ovr_for_each_eye([&](ovrEyeType eye) {
_eyeFovs[eye] = _hmdDesc.DefaultEyeFov[eye];
ovrEyeRenderDesc& erd = _eyeRenderDescs[eye] = ovr_GetRenderDesc(_session, eye, _eyeFovs[eye]);
ovrMatrix4f ovrPerspectiveProjection =
ovrMatrix4f_Projection(erd.Fov, DEFAULT_NEAR_CLIP, DEFAULT_FAR_CLIP, ovrProjection_RightHanded);
_eyeProjections[eye] = toGlm(ovrPerspectiveProjection);
_eyeOffsets[eye] = glm::translate(mat4(), toGlm(erd.HmdToEyeViewOffset));
eyeSizes[eye] = toGlm(ovr_GetFovTextureSize(_session, eye, erd.Fov, 1.0f));
_viewScaleDesc.HmdToEyeViewOffset[eye] = erd.HmdToEyeViewOffset;
});
auto combinedFov = _eyeFovs[0];
combinedFov.LeftTan = combinedFov.RightTan = std::max(combinedFov.LeftTan, combinedFov.RightTan);
_cullingProjection = toGlm(ovrMatrix4f_Projection(combinedFov, DEFAULT_NEAR_CLIP, DEFAULT_FAR_CLIP, ovrProjection_RightHanded));
_renderTargetSize = uvec2(
eyeSizes[0].x + eyeSizes[1].x,
std::max(eyeSizes[0].y, eyeSizes[1].y));
if (!OVR_SUCCESS(ovr_ConfigureTracking(_session,
ovrTrackingCap_Orientation | ovrTrackingCap_Position | ovrTrackingCap_MagYawCorrection, 0))) {
qFatal("Could not attach to sensor device");
}
// Parent class relies on our _session intialization, so it must come after that.
memset(&_sceneLayer, 0, sizeof(ovrLayerEyeFov));
_sceneLayer.Header.Type = ovrLayerType_EyeFov;
_sceneLayer.Header.Flags = ovrLayerFlag_TextureOriginAtBottomLeft;
ovr_for_each_eye([&](ovrEyeType eye) {
ovrFovPort & fov = _sceneLayer.Fov[eye] = _eyeRenderDescs[eye].Fov;
ovrSizei & size = _sceneLayer.Viewport[eye].Size = ovr_GetFovTextureSize(_session, eye, fov, 1.0f);
_sceneLayer.Viewport[eye].Pos = { eye == ovrEye_Left ? 0 : size.w, 0 };
});
if (!OVR_SUCCESS(ovr_ConfigureTracking(_session,
ovrTrackingCap_Orientation | ovrTrackingCap_Position | ovrTrackingCap_MagYawCorrection, 0))) {
qFatal("Could not attach to sensor device");
}
// This must come after the initialization, so that the values calculated
// above are available during the customizeContext call (when not running
// in threaded present mode)
HmdDisplayPlugin::activate();
}
OVR::Matrix4f vx_ovr_namespace_::OVRHMDHandleWithDevice::getViewMatrix(ovrEyeType eye, float pos_x, float pos_y, float pos_z, float yaw) const
{
auto height = ovr_GetFloat(session_, OVR_KEY_EYE_HEIGHT, 1.8f);
OVR::Matrix4f rollPitchYaw = OVR::Matrix4f::RotationY(yaw);
OVR::Matrix4f finalRollPitchYaw = rollPitchYaw * OVR::Matrix4f(eyeRenderPosef_[eye].Orientation);
OVR::Vector3f finalUp = finalRollPitchYaw.Transform(OVR::Vector3f(0.0, 1.0, 0.0));
OVR::Vector3f finalForward = finalRollPitchYaw.Transform(OVR::Vector3f(0.0, 0.0, -1.0));
OVR::Vector3f shiftedEyePos = OVR::Vector3f(pos_x, pos_y + height, pos_z) + rollPitchYaw.Transform(eyeRenderPosef_[eye].Position);
return OVR::Matrix4f::LookAtRH(shiftedEyePos, shiftedEyePos + finalForward, finalUp);
}
void OculusBaseDisplayPlugin::activate() {
if (!OVR_SUCCESS(ovr_Initialize(nullptr))) {
qFatal("Could not init OVR");
}
if (!OVR_SUCCESS(ovr_Create(&_session, &_luid))) {
qFatal("Failed to acquire HMD");
}
WindowOpenGLDisplayPlugin::activate();
_hmdDesc = ovr_GetHmdDesc(_session);
_ipd = ovr_GetFloat(_session, OVR_KEY_IPD, _ipd);
glm::uvec2 eyeSizes[2];
ovr_for_each_eye([&](ovrEyeType eye) {
_eyeFovs[eye] = _hmdDesc.DefaultEyeFov[eye];
ovrEyeRenderDesc& erd = _eyeRenderDescs[eye] = ovr_GetRenderDesc(_session, eye, _eyeFovs[eye]);
ovrMatrix4f ovrPerspectiveProjection =
ovrMatrix4f_Projection(erd.Fov, DEFAULT_NEAR_CLIP, DEFAULT_FAR_CLIP, ovrProjection_RightHanded);
_eyeProjections[eye] = toGlm(ovrPerspectiveProjection);
ovrPerspectiveProjection =
ovrMatrix4f_Projection(erd.Fov, 0.001f, 10.0f, ovrProjection_RightHanded);
_compositeEyeProjections[eye] = toGlm(ovrPerspectiveProjection);
_eyeOffsets[eye] = erd.HmdToEyeViewOffset;
eyeSizes[eye] = toGlm(ovr_GetFovTextureSize(_session, eye, erd.Fov, 1.0f));
});
ovrFovPort combined = _eyeFovs[Left];
combined.LeftTan = std::max(_eyeFovs[Left].LeftTan, _eyeFovs[Right].LeftTan);
combined.RightTan = std::max(_eyeFovs[Left].RightTan, _eyeFovs[Right].RightTan);
ovrMatrix4f ovrPerspectiveProjection =
ovrMatrix4f_Projection(combined, DEFAULT_NEAR_CLIP, DEFAULT_FAR_CLIP, ovrProjection_RightHanded);
_eyeProjections[Mono] = toGlm(ovrPerspectiveProjection);
_desiredFramebufferSize = uvec2(
eyeSizes[0].x + eyeSizes[1].x,
std::max(eyeSizes[0].y, eyeSizes[1].y));
if (!OVR_SUCCESS(ovr_ConfigureTracking(_session,
ovrTrackingCap_Orientation | ovrTrackingCap_Position | ovrTrackingCap_MagYawCorrection, 0))) {
qFatal("Could not attach to sensor device");
}
// Parent class relies on our _session intialization, so it must come after that.
memset(&_sceneLayer, 0, sizeof(ovrLayerEyeFov));
_sceneLayer.Header.Type = ovrLayerType_EyeFov;
_sceneLayer.Header.Flags = ovrLayerFlag_TextureOriginAtBottomLeft;
ovr_for_each_eye([&](ovrEyeType eye) {
ovrFovPort & fov = _sceneLayer.Fov[eye] = _eyeRenderDescs[eye].Fov;
ovrSizei & size = _sceneLayer.Viewport[eye].Size = ovr_GetFovTextureSize(_session, eye, fov, 1.0f);
_sceneLayer.Viewport[eye].Pos = { eye == ovrEye_Left ? 0 : size.w, 0 };
});
if (!OVR_SUCCESS(ovr_ConfigureTracking(_session,
ovrTrackingCap_Orientation | ovrTrackingCap_Position | ovrTrackingCap_MagYawCorrection, 0))) {
qFatal("Could not attach to sensor device");
}
}
float vx_ovr_namespace_::OVRHMDHandleWithDevice::getUserHeight()
{
return ovr_GetFloat(session_, OVR_KEY_EYE_HEIGHT, 1.8f);
}
