private static string BlendShapeNameIfValid(int index, VRCAvatarDescriptor.CustomEyeLookSettings settings)
{
var count = settings.eyelidsSkinnedMesh.sharedMesh.blendShapeCount;
return(index >= 0 && index < count?settings.eyelidsSkinnedMesh.sharedMesh.GetBlendShapeName(index) : null);
}
/// <summary>
/// 【SDK3】<see cref="BlendShapePreset.Blink"/>を変換し、視線追従を有効化します。
/// </summary>
/// <param name="avatar"></param>
/// <param name="clips"></param>
/// <param name="useShapeKeyNormalsAndTangents"/>
private static void EnableEyeLook(
GameObject avatar,
IEnumerable <VRMBlendShapeClip> clips,
bool useShapeKeyNormalsAndTangents
)
{
VRMBlendShapeClip clip = clips.FirstOrDefault(c => c.Preset == BlendShapePreset.Blink);
var lookAtBoneApplyer = avatar.GetComponent <VRMLookAtBoneApplyer>();
if (!clip && !lookAtBoneApplyer)
{
return;
}
var renderer = avatar.transform.Find(VRChatUtility.AutoBlinkMeshPath).GetComponent <SkinnedMeshRenderer>();
var mesh = renderer.sharedMesh;
if (clip)
{
mesh.AddBlendShapeFrame(
BlendShapeReplacer.BlinkShapeKeyName,
1,
BlendShapeReplacer.GenerateShapeKey(
clip.ShapeKeyValues,
BlendShapeReplacer.GetAllShapeKeys(mesh, useShapeKeyNormalsAndTangents)
),
null,
null
);
EditorUtility.SetDirty(mesh);
}
#if VRC_SDK_VRCSDK3
var descriptor = avatar.GetComponent <VRCAvatarDescriptor>();
descriptor.enableEyeLook = true;
var settings = new VRCAvatarDescriptor.CustomEyeLookSettings();
if (clip)
{
settings.eyelidType = VRCAvatarDescriptor.EyelidType.Blendshapes;
settings.eyelidsSkinnedMesh = renderer;
settings.eyelidsBlendshapes = new[] { mesh.blendShapeCount - 1, -1, -1 };
}
if (lookAtBoneApplyer)
{
settings.eyeMovement = new VRCAvatarDescriptor.CustomEyeLookSettings.EyeMovements()
{
excitement = 0.5f,
confidence = 0,
};
settings.leftEye = lookAtBoneApplyer.LeftEye.Transform;
settings.rightEye = lookAtBoneApplyer.RightEye.Transform;
settings.eyesLookingUp = new VRCAvatarDescriptor.CustomEyeLookSettings.EyeRotations()
{
left = Quaternion.Euler(x: -lookAtBoneApplyer.VerticalUp.CurveYRangeDegree, 0, 0),
right = Quaternion.Euler(x: -lookAtBoneApplyer.VerticalUp.CurveYRangeDegree, 0, 0),
};
settings.eyesLookingDown = new VRCAvatarDescriptor.CustomEyeLookSettings.EyeRotations()
{
left = Quaternion.Euler(x: lookAtBoneApplyer.VerticalUp.CurveYRangeDegree, 0, 0),
right = Quaternion.Euler(x: lookAtBoneApplyer.VerticalUp.CurveYRangeDegree, 0, 0),
};
settings.eyesLookingLeft = new VRCAvatarDescriptor.CustomEyeLookSettings.EyeRotations()
{
left = Quaternion.Euler(0, y: -lookAtBoneApplyer.HorizontalOuter.CurveYRangeDegree, 0),
right = Quaternion.Euler(0, y: -lookAtBoneApplyer.HorizontalInner.CurveYRangeDegree, 0),
};
settings.eyesLookingRight = new VRCAvatarDescriptor.CustomEyeLookSettings.EyeRotations()
{
left = Quaternion.Euler(0, y: lookAtBoneApplyer.HorizontalInner.CurveYRangeDegree, 0),
right = Quaternion.Euler(0, y: lookAtBoneApplyer.HorizontalOuter.CurveYRangeDegree, 0),
};
}
descriptor.customEyeLookSettings = settings;
#endif
}
