/// <summary>
/// 入力 Weight を基に、Validation を行い実際にモデルに適用される Weights を計算し、Merger を介して適用する。
/// この際、LookAt の情報を pull してそれも適用する。
/// </summary>
private void Apply()
{
// 1. Get eye direction from provider.
_inputEyeDirection = _eyeDirectionProvider?.EyeDirection ?? default;
// 2. Validate user input, and Output as actual weights.
_validator.Validate(_inputWeights, _actualWeights,
_inputEyeDirection, out _actualEyeDirection,
out var blink, out var lookAt, out var mouth);
// 3. Set eye direction expression weights or any other side-effects (ex. eye bone).
_eyeDirectionApplicable?.Apply(_actualEyeDirection, _actualWeights);
// 4. Set actual weights to raw blendshapes.
_merger.SetValues(_actualWeights);
BlinkOverrideRate = blink;
LookAtOverrideRate = lookAt;
MouthOverrideRate = mouth;
}
