public override void PrepareFrame(Playable playable, FrameData info)
{
mPlaying = info.evaluationType == FrameData.EvaluationType.Playback;
#if UNITY_EDITOR && UNITY_2019_2_OR_NEWER
if (Application.isPlaying || !TargetPositionCache.UseCache)
{
TargetPositionCache.CacheMode = TargetPositionCache.Mode.Disabled;
}
else
{
if (m_ScrubbingCacheHelper == null)
{
m_ScrubbingCacheHelper = new ScrubbingCacheHelper();
m_ScrubbingCacheHelper.Init(playable);
}
m_ScrubbingCacheHelper.ScrubToHere(
(float)playable.GetGraph().GetRootPlayable(0).GetTime(),
mPlaying ? TargetPositionCache.Mode.Record : TargetPositionCache.Mode.Playback,
mBrain);
}
#else
TargetPositionCache.CacheMode = TargetPositionCache.Mode.Disabled;
#endif
}
public override void ProcessFrame(Playable playable, FrameData info, object playerData)
{
base.ProcessFrame(playable, info, playerData);
// Get the object that this track controls
m_BrainOverrideStack = playerData as ICameraOverrideStack;
if (m_BrainOverrideStack == null)
{
return;
}
// Find which clips are active. We can process a maximum of 2.
// In the case that the weights don't add up to 1, the outgoing weight
// will be calculated as the inverse of the incoming weight.
int activeInputs = 0;
int clipIndexA = -1;
int clipIndexB = -1;
bool incomingIsA = false; // Assume that incoming clip is clip B
float weightB = 1;
for (int i = 0; i < playable.GetInputCount(); ++i)
{
float weight = playable.GetInputWeight(i);
var clip = (ScriptPlayable <CinemachineShotPlayable>)playable.GetInput(i);
CinemachineShotPlayable shot = clip.GetBehaviour();
if (shot != null && shot.IsValid &&
playable.GetPlayState() == PlayState.Playing &&
weight > 0)
{
clipIndexA = clipIndexB;
clipIndexB = i;
weightB = weight;
if (++activeInputs == 2)
{
// Deduce which clip is incoming (timeline doesn't know)
var clipA = playable.GetInput(clipIndexA);
// Incoming has later start time (therefore earlier current time)
incomingIsA = clip.GetTime() >= clipA.GetTime();
// If same start time, longer clip is incoming
if (clip.GetTime() == clipA.GetTime())
{
incomingIsA = clip.GetDuration() < clipA.GetDuration();
}
break;
}
}
}
// Special case: check for only one clip that's fading out - it must be outgoing
if (activeInputs == 1 && weightB < 1 &&
playable.GetInput(clipIndexB).GetTime() > playable.GetInput(clipIndexB).GetDuration() / 2)
{
incomingIsA = true;
}
if (incomingIsA)
{
(clipIndexA, clipIndexB) = (clipIndexB, clipIndexA);
weightB = 1 - weightB;
}
ICinemachineCamera camA = null;
if (clipIndexA >= 0)
{
CinemachineShotPlayable shot
= ((ScriptPlayable <CinemachineShotPlayable>)playable.GetInput(clipIndexA)).GetBehaviour();
camA = shot.VirtualCamera;
}
ICinemachineCamera camB = null;
if (clipIndexB >= 0)
{
CinemachineShotPlayable shot
= ((ScriptPlayable <CinemachineShotPlayable>)playable.GetInput(clipIndexB)).GetBehaviour();
camB = shot.VirtualCamera;
}
// Override the Cinemachine brain with our results
m_BrainOverrideId = m_BrainOverrideStack.SetCameraOverride(
m_BrainOverrideId, camA, camB, weightB, GetDeltaTime(info.deltaTime));
#if UNITY_EDITOR && UNITY_2019_2_OR_NEWER
if (m_ScrubbingCacheHelper != null && TargetPositionCache.CacheMode != TargetPositionCache.Mode.Disabled)
{
bool isNewB = (m_ScrubbingCacheHelper.ActivePlayableA != clipIndexB &&
m_ScrubbingCacheHelper.ActivePlayableB != clipIndexB);
m_ScrubbingCacheHelper.ActivePlayableA = clipIndexA;
m_ScrubbingCacheHelper.ActivePlayableB = clipIndexB;
if (clipIndexA >= 0)
{
m_ScrubbingCacheHelper.ScrubToHere(
(float)GetMasterPlayableDirector().time, clipIndexA, false,
(float)playable.GetInput(clipIndexA).GetTime(), m_BrainOverrideStack.DefaultWorldUp);
}
if (clipIndexB >= 0)
{
m_ScrubbingCacheHelper.ScrubToHere(
(float)GetMasterPlayableDirector().time, clipIndexB, isNewB && weightB > 0.99f,
(float)playable.GetInput(clipIndexB).GetTime(), m_BrainOverrideStack.DefaultWorldUp);
}
}
#endif
}