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25 lines
980 B
C++
25 lines
980 B
C++
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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#include "AngularLimit.h"
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namespace AnimationCore
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{
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bool ConstrainAngularRangeUsingEuler(FQuat& InOutQuatRotation, const FQuat& InRefRotation, const FVector& InLimitMinDegrees, const FVector& InLimitMaxDegrees)
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{
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// Simple clamping of euler angles. This might be better off refactored to use switch/twist decomposition and maybe an ellipsoid clamp
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FQuat DeltaQuat = InRefRotation * InOutQuatRotation.Inverse();
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FRotator DeltaRotator = DeltaQuat.Rotator();
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FRotator NewRotator;
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NewRotator.Pitch = FMath::Clamp(DeltaRotator.Pitch, InLimitMinDegrees.Y, InLimitMaxDegrees.Y);
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NewRotator.Yaw = FMath::Clamp(DeltaRotator.Yaw, InLimitMinDegrees.X, InLimitMaxDegrees.X);
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NewRotator.Roll = FMath::Clamp(DeltaRotator.Roll, InLimitMinDegrees.Z, InLimitMaxDegrees.Z);
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DeltaQuat = FQuat(NewRotator);
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InOutQuatRotation = DeltaQuat.Inverse() * InRefRotation;
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return !NewRotator.Equals(DeltaRotator);
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}
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}
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