public static void BuildXform(Matrix4x4 xf,
GameObject go,
SceneImportOptions options)
{
UnityEngine.Profiling.Profiler.BeginSample("Change Handedness");
ImportXform(ref xf, options);
UnityEngine.Profiling.Profiler.EndSample();
Vector3 localPos;
Quaternion localRot;
Vector3 localScale;
UnityEngine.Profiling.Profiler.BeginSample("Decompose Matrix");
bool success = UnityTypeConverter.Decompose(xf, out localPos, out localRot, out localScale);
UnityEngine.Profiling.Profiler.EndSample();
if (!success)
{
Debug.LogError("Non-decomposable transform matrix for " + go.name);
return;
}
UnityEngine.Profiling.Profiler.BeginSample("Assign Values");
go.transform.localPosition = localPos;
go.transform.localScale = localScale;
go.transform.localRotation = localRot;
UnityEngine.Profiling.Profiler.EndSample();
}
public static void BuildDebugBindTransforms(SkeletonSample skelSample,
GameObject goSkeleton,
SceneImportOptions options)
{
var debugPrefix = "usdSkel_bindPose_debug_cube";
if (options.meshOptions.debugShowSkeletonBindPose)
{
int i = 0;
foreach (var bindXf in skelSample.bindTransforms)
{
// Undo the bindXf inversion for visualization.
var mat = bindXf.inverse;
var cubeName = debugPrefix + i++;
var cube = goSkeleton.transform.Find(cubeName);
if (!cube)
{
cube = GameObject.CreatePrimitive(PrimitiveType.Cube).transform;
cube.SetParent(goSkeleton.transform, worldPositionStays: false);
cube.name = cubeName;
}
Vector3 t, s;
Quaternion r;
UnityTypeConverter.Decompose(mat, out t, out r, out s);
cube.localPosition = t;
cube.localScale = s;
cube.localRotation = r;
}
}
else
{
var zero = goSkeleton.transform.Find(debugPrefix + 0);
if (zero)
{
var toDelete = new List <GameObject>();
foreach (Transform child in goSkeleton.transform)
{
if (child.name.StartsWith(debugPrefix))
{
toDelete.Add(child.gameObject);
}
}
foreach (var child in toDelete)
{
GameObject.DestroyImmediate(child);
}
}
}
}
public static void BuildSkeletonBone(string skelPath,
GameObject go,
Matrix4x4 restXform,
VtTokenArray joints,
SceneImportOptions importOptions)
{
// Perform change of basis, if needed.
XformImporter.ImportXform(ref restXform, importOptions);
// Decompose into TSR.
Vector3 pos = Vector3.zero;
Quaternion rot = Quaternion.identity;
Vector3 scale = Vector3.one;
if (!UnityTypeConverter.Decompose(restXform, out pos, out rot, out scale))
{
throw new Exception("Failed to decompose bind transforms for <" + skelPath + ">");
}
go.transform.localScale = scale;
go.transform.localRotation = rot;
go.transform.localPosition = pos;
var cubeDebugName = "usdSkel_restPose_debug_cube";
if (importOptions.meshOptions.debugShowSkeletonRestPose)
{
var cube = go.transform.Find(cubeDebugName);
if (!cube)
{
cube = GameObject.CreatePrimitive(PrimitiveType.Cube).transform;
cube.name = cubeDebugName;
cube.SetParent(go.transform, worldPositionStays: false);
cube.localScale = Vector3.one * 2;
}
}
else
{
var existing = go.transform.Find(cubeDebugName);
if (existing)
{
GameObject.DestroyImmediate(existing.gameObject);
}
}
}