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e49f996e88
Added new EvaluateComponentSpaceInternal override to FAnimNode_SkeletalControlBase so derived classes can override Evaluate as well as Update phases. #rb Lina.Halper,Jaren.Petersen #lockdown nick.penwarden [CL 2824451 by Thomas Sarkanen in Main branch]
101 lines
3.0 KiB
C++
101 lines
3.0 KiB
C++
// Copyright 1998-2016 Epic Games, Inc. All Rights Reserved.
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#include "AnimGraphRuntimePrivatePCH.h"
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#include "BoneControllers/AnimNode_SkeletalControlBase.h"
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#include "AnimationUtils.h"
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#include "AnimationRuntime.h"
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#include "Animation/AnimInstanceProxy.h"
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/////////////////////////////////////////////////////
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// FAnimNode_SkeletalControlBase
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void FAnimNode_SkeletalControlBase::Initialize(const FAnimationInitializeContext& Context)
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{
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FAnimNode_Base::Initialize(Context);
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ComponentPose.Initialize(Context);
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}
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void FAnimNode_SkeletalControlBase::CacheBones(const FAnimationCacheBonesContext& Context)
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{
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InitializeBoneReferences(Context.AnimInstanceProxy->GetRequiredBones());
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ComponentPose.CacheBones(Context);
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}
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void FAnimNode_SkeletalControlBase::UpdateInternal(const FAnimationUpdateContext& Context)
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{
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}
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void FAnimNode_SkeletalControlBase::Update(const FAnimationUpdateContext& Context)
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{
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ComponentPose.Update(Context);
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if (IsLODEnabled(Context.AnimInstanceProxy, LODThreshold))
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{
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EvaluateGraphExposedInputs.Execute(Context);
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// Apply the skeletal control if it's valid
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const float ActualAlpha = AlphaScaleBias.ApplyTo(Alpha);
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if ((ActualAlpha >= ZERO_ANIMWEIGHT_THRESH) && IsValidToEvaluate(Context.AnimInstanceProxy->GetSkeleton(), Context.AnimInstanceProxy->GetRequiredBones()))
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{
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UpdateInternal(Context);
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}
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}
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}
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bool ContainsNaN(const TArray<FBoneTransform> & BoneTransforms)
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{
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for (int32 i = 0; i < BoneTransforms.Num(); ++i)
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{
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if (BoneTransforms[i].Transform.ContainsNaN())
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{
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return true;
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}
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}
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return false;
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}
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void FAnimNode_SkeletalControlBase::EvaluateComponentSpaceInternal(FComponentSpacePoseContext& Context)
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{
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}
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void FAnimNode_SkeletalControlBase::EvaluateComponentSpace(FComponentSpacePoseContext& Output)
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{
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// Evaluate the input
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ComponentPose.EvaluateComponentSpace(Output);
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if (IsLODEnabled(Output.AnimInstanceProxy, LODThreshold))
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{
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// Apply the skeletal control if it's valid
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const float ActualAlpha = AlphaScaleBias.ApplyTo(Alpha);
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if ((ActualAlpha >= ZERO_ANIMWEIGHT_THRESH) && IsValidToEvaluate(Output.AnimInstanceProxy->GetSkeleton(), Output.AnimInstanceProxy->GetRequiredBones()))
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{
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EvaluateComponentSpaceInternal(Output);
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USkeletalMeshComponent* Component = Output.AnimInstanceProxy->GetSkelMeshComponent();
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#if WITH_EDITORONLY_DATA
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// save current pose before applying skeletal control to compute the exact gizmo location in AnimGraphNode
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ForwardedPose = Output.Pose;
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#endif // #if WITH_EDITORONLY_DATA
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BoneTransforms.Reset(BoneTransforms.Num());
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EvaluateBoneTransforms(Component, Output.Pose, BoneTransforms);
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checkSlow(!ContainsNaN(BoneTransforms));
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if (BoneTransforms.Num() > 0)
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{
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const float BlendWeight = FMath::Clamp<float>(ActualAlpha, 0.f, 1.f);
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Output.Pose.LocalBlendCSBoneTransforms(BoneTransforms, BlendWeight);
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}
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}
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}
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}
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void FAnimNode_SkeletalControlBase::AddDebugNodeData(FString& OutDebugData)
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{
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const float ActualAlpha = AlphaScaleBias.ApplyTo(Alpha);
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OutDebugData += FString::Printf(TEXT("Alpha: %.1f%%"), ActualAlpha*100.f);
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} |