/// Starts recording the transform to a named transform in a new usd file given by the path.
public bool StartRecording(string path, string sketchName = "/Sketch", string xformName = "/VideoCamera")
{
m_xformName = sketchName + xformName;
if (!InitUsd.Initialize() || string.IsNullOrEmpty(path))
{
return(false);
}
// Find the active camera.
m_RecordingCamera = null;
foreach (var c in GetComponentsInChildren <Camera>())
{
if (c.gameObject.activeInHierarchy && c.isActiveAndEnabled)
{
m_RecordingCamera = c;
}
}
if (m_RecordingCamera == null)
{
return(false);
}
var sketchRoot = ExportUsd.CreateSketchRoot();
m_UsdCamera = new UsdCameraXformSample();
try
{
m_Scene = USD.NET.Scene.Create(path);
}
catch (ApplicationException /*e*/)
{
Debug.LogError("Error creating usda file!");
return(false);
}
m_Scene.Write(sketchName, sketchRoot);
// The time code of the recording is in seconds.
m_Scene.Stage.SetTimeCodesPerSecond(1);
// CameraSample constructor converts the Unity Camera to USD.
// Write the fallback camera parameters.
var cameraSample = new UsdCameraSample(m_RecordingCamera);
// Convert camera params to meters.
cameraSample.clippingRange *= App.UNITS_TO_METERS;
m_Scene.Write(m_xformName, cameraSample);
m_Scene.Time = 0;
m_Scene.StartTime = 0;
m_Scene.EndTime = 0;
m_IsRecording = true;
return(true);
}
public void Serialize()
{
// Get transform in canvas space, and write to scene.
TrTransform xf_CS = Coords.AsCanvas[transform];
var basisMat = Matrix4x4.identity;
if (m_UnitsInMeters)
{
basisMat[0, 0] *= App.UNITS_TO_METERS;
basisMat[1, 1] *= App.UNITS_TO_METERS;
basisMat[2, 2] *= -1 * App.UNITS_TO_METERS;
}
m_UsdCamera.transform = ExportUtils.ChangeBasis(xf_CS.ToMatrix4x4(), basisMat, basisMat.inverse);
m_UsdCamera.fov = m_RecordingCamera.fieldOfView;
m_Scene.Write(m_xformName, m_UsdCamera);
}