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This commit is contained in:
BobSong
2026-01-01 22:00:33 +08:00
parent 040a222bd6
commit 9ceffccd39
1800 changed files with 103929 additions and 139495 deletions
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90
Assets/Obi/Scripts/RopeAndRod/Actors/ObiRope.cs
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@@ -178,20 +178,20 @@ namespace Obi
SetupRuntimeConstraints();
}
internal override void LoadBlueprint()
public override void LoadBlueprint(ObiSolver solver)
{
// create a copy of the blueprint for this cloth:
if (Application.isPlaying)
m_RopeBlueprintInstance = this.blueprint as ObiRopeBlueprint;
base.LoadBlueprint();
base.LoadBlueprint(solver);
RebuildElementsFromConstraints();
SetupRuntimeConstraints();
}
internal override void UnloadBlueprint()
public override void UnloadBlueprint(ObiSolver solver)
{
base.UnloadBlueprint();
base.UnloadBlueprint(solver);
// delete the blueprint instance:
if (m_RopeBlueprintInstance != null)
@@ -202,25 +202,26 @@ namespace Obi
{
SetConstraintsDirty(Oni.ConstraintType.Distance);
SetConstraintsDirty(Oni.ConstraintType.Bending);
SetConstraintsDirty(Oni.ConstraintType.Aerodynamics);
SetSelfCollisions(selfCollisions);
SetMassScale(m_MassScale);
RecalculateRestLength();
SetSimplicesDirty();
UpdateCollisionMaterials();
}
// Tearing must be done at the end of each step instead of substep, to give a chance to solver constraints to be rebuilt.
public override void SimulationStart(float timeToSimulate, float substepTime)
public override void Substep(float substepTime)
{
base.SimulationStart(timeToSimulate, substepTime);
base.Substep(substepTime);
if (isActiveAndEnabled && tearingEnabled)
if (isActiveAndEnabled)
ApplyTearing(substepTime);
}
protected void ApplyTearing(float substepTime)
{
if (!tearingEnabled)
return;
float sqrTime = substepTime * substepTime;
tornElements.Clear();
@@ -229,28 +230,24 @@ namespace Obi
var sc = this.solver.GetConstraintsByType(Oni.ConstraintType.Distance) as ObiConstraints<ObiDistanceConstraintsBatch>;
if (dc != null && sc != null)
for (int j = 0; j < dc.GetBatchCount(); ++j)
{
// iterate up to the amount of entries in solverBatchOffsets, insteaf of dc.batchCount. This ensures
// the batches we access have been added to the solver, as solver.UpdateConstraints() could have not been called yet on a newly added actor.
for (int j = 0; j < solverBatchOffsets[(int)Oni.ConstraintType.Distance].Count; ++j)
var batch = dc.GetBatch(j) as ObiDistanceConstraintsBatch;
var solverBatch = sc.batches[j] as ObiDistanceConstraintsBatch;
for (int i = 0; i < batch.activeConstraintCount; i++)
{
var batch = dc.GetBatch(j) as ObiDistanceConstraintsBatch;
var solverBatch = sc.batches[j] as ObiDistanceConstraintsBatch;
int elementIndex = j + 2 * i;
for (int i = 0; i < batch.activeConstraintCount; i++)
// divide lambda by squared delta time to get force in newtons:
int offset = solverBatchOffsets[(int)Oni.ConstraintType.Distance][j];
float force = solverBatch.lambdas[offset + i] / sqrTime;
elements[elementIndex].constraintForce = force;
if (-force > tearResistanceMultiplier)
{
int elementIndex = j + 2 * i;
// divide lambda by squared delta time to get force in newtons:
int offset = solverBatchOffsets[(int)Oni.ConstraintType.Distance][j];
float force = solverBatch.lambdas[offset + i] / sqrTime;
elements[elementIndex].constraintForce = force;
if (-force > tearResistanceMultiplier)
{
tornElements.Add(elements[elementIndex]);
}
tornElements.Add(elements[elementIndex]);
}
}
}
@@ -285,8 +282,7 @@ namespace Obi
m_Solver.invMasses[splitIndex] *= 2;
CopyParticle(solver.particleToActor[splitIndex].indexInActor, activeParticleCount);
ActivateParticle();
SetRenderingDirty(Oni.RenderingSystemType.AllRopes);
ActivateParticle(activeParticleCount);
return solverIndices[activeParticleCount - 1];
}
@@ -313,7 +309,8 @@ namespace Obi
element.particle1 = SplitParticle(element.particle1);
OnRopeTorn?.Invoke(this, new ObiRopeTornEventArgs(element, element.particle1));
if (OnRopeTorn != null)
OnRopeTorn(this, new ObiRopeTornEventArgs(element, element.particle1));
return true;
}
@@ -321,7 +318,7 @@ namespace Obi
protected override void RebuildElementsFromConstraintsInternal()
{
var dc = GetConstraintsByType(Oni.ConstraintType.Distance) as ObiConstraints<ObiDistanceConstraintsBatch>;
if (dc == null || dc.batchCount < 2)
if (dc == null || dc.GetBatchCount() < 2)
return;
int constraintCount = dc.batches[0].activeConstraintCount + dc.batches[1].activeConstraintCount;
@@ -359,26 +356,13 @@ namespace Obi
// regenerate constraints from elements:
var dc = GetConstraintsByType(Oni.ConstraintType.Distance) as ObiConstraints<ObiDistanceConstraintsBatch>;
var bc = GetConstraintsByType(Oni.ConstraintType.Bending) as ObiConstraints<ObiBendConstraintsBatch>;
var ac = GetConstraintsByType(Oni.ConstraintType.Aerodynamics) as ObiConstraints<ObiAerodynamicConstraintsBatch>;
dc.DeactivateAllConstraints();
bc.DeactivateAllConstraints();
ac.DeactivateAllConstraints();
for (int i = 0; i < activeParticleCount; ++i)
{
// aerodynamic constraints:
var ab = ac.batches[0] as ObiAerodynamicConstraintsBatch;
int constraint = ab.activeConstraintCount;
ab.particleIndices[constraint] = i;
ab.aerodynamicCoeffs[constraint * 3] = 2 * solver.principalRadii[solverIndices[i]].x;
ab.ActivateConstraint(constraint);
}
int elementsCount = elements.Count - (ropeBlueprint.path.Closed ? 1 : 0);
for (int i = 0; i < elementsCount; ++i)
{
// distance constraints
var db = dc.batches[i % 2] as ObiDistanceConstraintsBatch;
int constraint = db.activeConstraintCount;
@@ -388,7 +372,6 @@ namespace Obi
db.stiffnesses[constraint] = new Vector2(_stretchCompliance, _maxCompression * db.restLengths[constraint]);
db.ActivateConstraint(constraint);
// bend constraints
if (i < elementsCount - 1)
{
var bb = bc.batches[i % 3] as ObiBendConstraintsBatch;
@@ -401,7 +384,7 @@ namespace Obi
int indexA = elements[i].particle1;
int indexB = elements[i + 1].particle2;
int indexC = elements[i].particle2;
float restBend = 0;//ObiUtils.RestBendingConstraint(solver.restPositions[indexA], solver.restPositions[indexB], solver.restPositions[indexC]);
float restBend = ObiUtils.RestBendingConstraint(solver.restPositions[indexA], solver.restPositions[indexB], solver.restPositions[indexC]);
bb.particleIndices[constraint * 3] = solver.particleToActor[indexA].indexInActor;
bb.particleIndices[constraint * 3 + 1] = solver.particleToActor[indexB].indexInActor;
@@ -447,21 +430,16 @@ namespace Obi
loopClosingBatch.ActivateConstraint(0);
}
// edge simplices and deformable edges
var rb = sharedBlueprint as ObiRopeBlueprint;
rb.edges = new int[elements.Count * 2];
rb.deformableEdges = new int[elements.Count * 2];
// edge simplices:
sharedBlueprint.edges = new int[elements.Count*2];
for (int i = 0; i < elements.Count; ++i)
{
rb.deformableEdges[i * 2] = rb.edges[i * 2] = solver.particleToActor[elements[i].particle1].indexInActor;
rb.deformableEdges[i * 2 + 1] = rb.edges[i * 2 + 1] = solver.particleToActor[elements[i].particle2].indexInActor;
sharedBlueprint.edges[i * 2] = solver.particleToActor[elements[i].particle1].indexInActor;
sharedBlueprint.edges[i * 2 + 1] = solver.particleToActor[elements[i].particle2].indexInActor;
}
SetConstraintsDirty(Oni.ConstraintType.Distance);
SetConstraintsDirty(Oni.ConstraintType.Bending);
SetConstraintsDirty(Oni.ConstraintType.Aerodynamics);
solver.dirtyDeformableEdges = true;
SetSimplicesDirty();
}
}