// 線形補間
public static FloatKeyframe Lerp(FloatKeyframe from, FloatKeyframe to, Vector2 t)
{
return(new FloatKeyframe(
Mathf.Lerp(from.time, to.time, t.x),
Mathf.Lerp(from.value, to.value, t.y)
));
}
// ベジェを線形補間で近似したキーフレームを追加する
public static void AddBezierKeyframes(byte[] interpolation, int type,
FloatKeyframe prev_keyframe, FloatKeyframe cur_keyframe, int interpolationQuality,
ref FloatKeyframe[] keyframes, ref int index)
{
if (prev_keyframe == null || IsLinear(interpolation, type))
{
keyframes[index++] = cur_keyframe;
}
else
{
Vector2 bezierHandleA = GetBezierHandle(interpolation, type, 0);
Vector2 bezierHandleB = GetBezierHandle(interpolation, type, 1);
int sampleCount = interpolationQuality;
for (int j = 0; j < sampleCount; j++)
{
float t = (j + 1) / (float)sampleCount;
Vector2 sample = SampleBezier(bezierHandleA, bezierHandleB, t);
keyframes[index++] = FloatKeyframe.Lerp(prev_keyframe, cur_keyframe, sample);
}
}
}
// 移動のみの抽出
void CreateKeysForLocation(MMD.VMD.VMDFormat format, AnimationClip clip, string current_bone, string bone_path, int interpolationQuality, GameObject current_obj = null)
{
try
{
const float tick_time = 1.0f / VMD_FPS;
Vector3 default_position = Vector3.zero;
if (current_obj != null)
{
default_position = current_obj.transform.localPosition;
}
List <MMD.VMD.VMDFormat.Motion> mlist = format.motion_list.motion[current_bone];
int keyframeCountX = GetKeyframeCount(mlist, 0, interpolationQuality);
int keyframeCountY = GetKeyframeCount(mlist, 1, interpolationQuality);
int keyframeCountZ = GetKeyframeCount(mlist, 2, interpolationQuality);
FloatKeyframe[] lx_keys = new FloatKeyframe[keyframeCountX];
FloatKeyframe[] ly_keys = new FloatKeyframe[keyframeCountY];
FloatKeyframe[] lz_keys = new FloatKeyframe[keyframeCountZ];
FloatKeyframe lx_prev_key = null;
FloatKeyframe ly_prev_key = null;
FloatKeyframe lz_prev_key = null;
int ix = 0;
int iy = 0;
int iz = 0;
for (int i = 0; i < mlist.Count; i++)
{
float tick = mlist[i].frame_no * tick_time;
FloatKeyframe lx_cur_key = new FloatKeyframe(tick, mlist[i].location.x * scale_ + default_position.x);
FloatKeyframe ly_cur_key = new FloatKeyframe(tick, mlist[i].location.y * scale_ + default_position.y);
FloatKeyframe lz_cur_key = new FloatKeyframe(tick, mlist[i].location.z * scale_ + default_position.z);
// 各軸別々に補間が付いてる
FloatKeyframe.AddBezierKeyframes(mlist[i].interpolation, 0, lx_prev_key, lx_cur_key, interpolationQuality, ref lx_keys, ref ix);
FloatKeyframe.AddBezierKeyframes(mlist[i].interpolation, 1, ly_prev_key, ly_cur_key, interpolationQuality, ref ly_keys, ref iy);
FloatKeyframe.AddBezierKeyframes(mlist[i].interpolation, 2, lz_prev_key, lz_cur_key, interpolationQuality, ref lz_keys, ref iz);
lx_prev_key = lx_cur_key;
ly_prev_key = ly_cur_key;
lz_prev_key = lz_cur_key;
}
// 回転ボーンの場合はデータが入ってないはず
if (mlist.Count != 0)
{
AnimationCurve curve_x = ToAnimationCurveForLocation(lx_keys);
AnimationCurve curve_y = ToAnimationCurveForLocation(ly_keys);
AnimationCurve curve_z = ToAnimationCurveForLocation(lz_keys);
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(bone_path, typeof(Transform), "m_LocalPosition.x"), curve_x);
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(bone_path, typeof(Transform), "m_LocalPosition.y"), curve_y);
AnimationUtility.SetEditorCurve(clip, EditorCurveBinding.FloatCurve(bone_path, typeof(Transform), "m_LocalPosition.z"), curve_z);
}
}
catch (KeyNotFoundException)
{
Debug.LogError("互換性のないボーンが読み込まれました:" + current_bone);
}
}
