public override IObiConstraintsBatch Clone(IObiConstraints constraints)
{
var clone = new ObiBendTwistConstraintsBatch(constraints as ObiBendTwistConstraintsData, this);
clone.particleIndices.ResizeUninitialized(particleIndices.count);
clone.restDarbouxVectors.ResizeUninitialized(restDarbouxVectors.count);
clone.stiffnesses.ResizeUninitialized(stiffnesses.count);
clone.particleIndices.CopyFrom(particleIndices);
clone.restDarbouxVectors.CopyFrom(restDarbouxVectors);
clone.stiffnesses.CopyFrom(stiffnesses);
return(clone);
}
protected virtual IEnumerator CreateBendTwistConstraints()
{
bendTwistConstraintsData = new ObiBendTwistConstraintsData();
// Add two batches:
bendTwistConstraintsData.AddBatch(new ObiBendTwistConstraintsBatch());
bendTwistConstraintsData.AddBatch(new ObiBendTwistConstraintsBatch());
// the last bend constraint couples the last segment and a phantom segment past the last particle.
for (int i = 0; i < totalParticles - 1; i++)
{
var batch = bendTwistConstraintsData.batches[i % 2] as ObiBendTwistConstraintsBatch;
Vector2Int indices = new Vector2Int(i, i + 1);
Quaternion darboux = keepInitialShape ? ObiUtils.RestDarboux(orientations[indices.x], orientations[indices.y]) : Quaternion.identity;
batch.AddConstraint(indices, darboux);
batch.activeConstraintCount++;
if (i % 500 == 0)
{
yield return(new CoroutineJob.ProgressInfo("ObiRod: generating structural constraints...", i / (float)(totalParticles - 1)));
}
}
// if the path is closed, add the last, loop closing constraints to a new batch to avoid sharing particles.
if (path.Closed)
{
var loopClosingBatch = new ObiBendTwistConstraintsBatch();
bendTwistConstraintsData.AddBatch(loopClosingBatch);
Vector2Int indices = new Vector2Int(m_ActiveParticleCount - 1, 0);
Quaternion darboux = keepInitialShape ? ObiUtils.RestDarboux(orientations[indices.x], orientations[indices.y]) : Quaternion.identity;
loopClosingBatch.AddConstraint(indices, darboux);
loopClosingBatch.activeConstraintCount++;
}
}
public ObiBendTwistConstraintsBatch(ObiBendTwistConstraintsData constraints = null, ObiBendTwistConstraintsBatch source = null) : base(source)
{
m_Constraints = constraints;
}
public ObiBendTwistConstraintsBatch(ObiBendTwistConstraintsBatch source = null) : base(source)
{
}
