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Add **Spring Bone Physics** node to Anim Graph

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This commit is contained in:
mafiesto4
2026-04-14 16:02:17 +02:00
parent 5b7af2e10c
commit 9bb7733b33
5 changed files with 247 additions and 8 deletions
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Source/Engine/Animations/Graph/AnimGraph.cpp
+32 -6
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@@ -5,6 +5,7 @@
#include "Engine/Animations/AnimEvent.h"
#include "Engine/Content/Assets/SkinnedModel.h"
#include "Engine/Graphics/Models/SkeletonData.h"
#include "Engine/Level/Actor.h"
#include "Engine/Scripting/Scripting.h"
#include "Engine/Threading/Threading.h"
@@ -24,17 +25,33 @@ Transform AnimGraphImpulse::GetNodeModelTransformation(SkeletonData& skeleton, i
return parentTransform.LocalToWorld(Nodes[nodeIndex]);
}
void AnimGraphImpulse::SetNodeModelTransformation(SkeletonData& skeleton, int32 nodeIndex, const Transform& value)
void AnimGraphImpulse::SetNodeModelTransformation(SkeletonData& skeleton, int32 nodeIndex, const Transform& value, float weight)
{
Transform transform = value;
const int32 parentIndex = skeleton.Nodes[nodeIndex].ParentIndex;
if (parentIndex == -1)
if (parentIndex != -1)
{
Nodes[nodeIndex] = value;
return;
const Transform parentTransform = GetNodeModelTransformation(skeleton, parentIndex);
parentTransform.WorldToLocal(transform, transform);
}
const Transform parentTransform = GetNodeModelTransformation(skeleton, parentIndex);
parentTransform.WorldToLocal(value, Nodes[nodeIndex]);
if (weight >= 1.0f)
Nodes[nodeIndex] = transform;
else
Transform::Lerp(Nodes[nodeIndex], transform, weight, Nodes[nodeIndex]);
}
Transform AnimGraphImpulse::GetNodeWorldTransformation(const AnimGraphContext& context, SkeletonData& skeleton, int32 nodeIndex) const
{
Transform transform = GetNodeModelTransformation(skeleton, nodeIndex);
return context.Data->GetObjectTransform().LocalToWorld(transform);
}
void AnimGraphImpulse::SetNodeWorldTransformation(const AnimGraphContext& context, SkeletonData& skeleton, int32 nodeIndex, const Transform& value)
{
Transform transform;
context.Data->GetObjectTransform().WorldToLocal(value, transform);
SetNodeModelTransformation(skeleton, nodeIndex, transform);
}
void AnimGraphInstanceData::Clear()
@@ -56,6 +73,7 @@ void AnimGraphInstanceData::ClearState()
RootTransform = Transform::Identity;
RootMotion = Transform::Identity;
State.Resize(0);
DynamicState.Resize(0);
NodesPose.Resize(0);
TraceEvents.Clear();
}
@@ -91,6 +109,13 @@ void AnimGraphInstanceData::InvokeAnimEvents()
}
}
Transform AnimGraphInstanceData::GetObjectTransform() const
{
if (auto* actor = ScriptingObject::Cast<Actor>(Object))
return actor->GetTransform();
return Transform::Identity;
}
AnimGraphInstanceData::OutgoingEvent AnimGraphInstanceData::ActiveEvent::End(AnimatedModel* actor) const
{
OutgoingEvent out;
@@ -285,6 +310,7 @@ void AnimGraphExecutor::Update(AnimGraphInstanceData& data, float dt)
{
// Prepare memory for buckets state information
data.State.Resize(_graph.BucketsCountTotal, false);
data.DynamicState.Clear();
// Initialize buckets
ResetBuckets(context, &_graph);