public static CameraProperties SmoothBilateral(CameraProperties[] cams, int t0, float sigmatime, float sigmax)
{
int l = cams.Length;
float wsumt = 0;
float wsumr = 0;
float wsumd = 0;
float sigtimesq = sigmatime * sigmatime;
float sigxsq = sigmax * sigmax;
Vec3f tar0 = cams[t0].GetTarget();
Quatf rot0 = cams[t0].qrot;
float dis0 = cams[t0].dist;
Vec3f t = new Vec3f();
Quatf r = new Quatf(0, 0, 0, 0);
float d = 0;
// window to ~99%
float siglg = Math.Max(sigmatime, sigmax);
int s = Math.Max(0, (int)((float)t0 - siglg * 3.0f));
int e = Math.Min(l - 1, (int)((float)t0 + siglg * 3.0f));
for (int ti = s; ti <= e; ti++)
{
CameraProperties cam = cams[ti];
float dtim = (ti - t0);
float dtar = (cam.GetTarget() - tar0).Length;
float drot = (cam.qrot - rot0).Length;
float ddis = (cam.dist - dis0);
float wg = (float)Math.Exp(-dtim * dtim / sigtimesq);
float wt = wg * (float)Math.Exp(-dtar * dtar / sigxsq);
float wr = wg * (float)Math.Exp(-drot * drot / sigxsq);
float wd = wg * (float)Math.Exp(-ddis * ddis / sigxsq);
wsumt += wt;
wsumr += wr;
wsumd += wd;
t += cam.Target.Val * wt;
r += cam.qrot * wr;
d += cam.dist * wd;
}
t *= 1.0f / wsumt;
r *= 1.0f / wsumr;
d *= 1.0f / wsumd;
return(new CameraProperties(t, r, d, cams[t0].Ortho.Val));
}
public CameraProperties[] GetCameras()
{
ModelingHistory history = ModelingHistory.history;
CameraProperties artist = null;
CameraProperties bestview = null;
Vec3f tar = new Vec3f();
Quatf rot = new Quatf();
float dist = 0.0f;
float ortho = 0.0f;
List <Vec3f> selverts = new List <Vec3f>();
Vec3f anorm = new Vec3f();
foreach (int isnapshot in snapshots)
{
SnapshotScene scene = history[isnapshot];
CameraProperties cam = scene.GetCamera();
tar += cam.GetTarget();
rot += cam.GetRotation();
dist += cam.GetDistance();
ortho += (cam.GetOrtho() ? 1.0f : 0.0f);
foreach (SnapshotModel model in scene.GetSelectedModels())
{
Vec3f[] verts = model.GetVerts();
Vec3f[] vnorms = model.GetVertNormals();
foreach (int ind in model.selinds)
{
selverts.Add(verts[ind]); anorm += vnorms[ind];
}
}
}
int nsnapshots = snapshots.Count;
if (nsnapshots == 0)
{
rot = new Quatf(0.5f, -0.5f, -0.5f, -0.5f);
dist = 10.0f;
System.Console.WriteLine("Cluster with no snapshots " + start + ":" + end);
}
else
{
tar /= (float)nsnapshots;
rot /= (float)nsnapshots;
dist /= (float)nsnapshots;
ortho /= (float)nsnapshots;
}
artist = new CameraProperties(tar, rot, dist, (ortho >= 0.5f))
{
Name = "Artist"
};
bestview = artist;
return(new CameraProperties[] { artist, bestview });
}
public void Set(CameraProperties camera)
{
Set(camera.GetTarget(), camera.GetRotation(), camera.GetDistance(), camera.GetOrtho());
}