public static void ApplyValuePath(MaterialTrack.ValueType valueType, string prop, int propId, Material mat, MaterialKey key, float t)
{
float finalT;
if (key.hasCustomEase())
{
finalT = Utility.EaseCustom(0.0f, 1.0f, t, key.easeCurve);
}
else
{
var ease = Utility.GetEasingFunction(key.easeType);
finalT = ease(t, 1f, key.amplitude, key.period);
if (float.IsNaN(finalT)) //this really shouldn't happen...
{
key.ApplyValue(valueType, prop, propId, mat);
return;
}
}
var pt = key.path.GetPoint(finalT);
var val = key.GetValueFromPathPoint(valueType, pt);
if (val != null)
{
switch (valueType)
{
case MaterialTrack.ValueType.Float:
case MaterialTrack.ValueType.Range:
mat.SetFloat(propId, (float)val);
break;
case MaterialTrack.ValueType.Vector:
mat.SetVector(propId, (Vector4)val);
break;
case MaterialTrack.ValueType.Color:
mat.SetColor(propId, (Color)val);
break;
case MaterialTrack.ValueType.TexOfs:
mat.SetTextureOffset(prop, (Vector2)val);
break;
case MaterialTrack.ValueType.TexScale:
mat.SetTextureScale(prop, (Vector2)val);
break;
}
}
}
public override void previewFrame(ITarget target, float frame, int frameRate, bool play, float playSpeed)
{
if (keys == null || keys.Count <= 0)
{
return;
}
//TODO: figure out how to preview frame during edit
if (Application.isPlaying)
{
if (!mIsInit)
{
Init(target);
}
// if before or equal to first frame, or is the only frame
MaterialKey firstKey = keys[0] as MaterialKey;
if (firstKey.endFrame == -1 || (frame <= (float)firstKey.frame && !firstKey.canTween))
{
firstKey.ApplyValue(_propertyType, _property, mPropId, materialInstance);
return;
}
// if lies on property action
for (int i = 0; i < keys.Count; i++)
{
MaterialKey key = keys[i] as MaterialKey;
MaterialKey keyNext = i + 1 < keys.Count ? keys[i + 1] as MaterialKey : null;
if (frame >= (float)key.endFrame && keyNext != null && (!keyNext.canTween || keyNext.endFrame != -1))
{
continue;
}
// if no ease
if (!key.canTween || keyNext == null)
{
key.ApplyValue(_propertyType, _property, mPropId, materialInstance);
return;
}
// else find value using easing function
float numFrames = (float)key.getNumberOfFrames(frameRate);
float framePositionInAction = Mathf.Clamp(frame - (float)key.frame, 0f, numFrames);
float t;
if (key.hasCustomEase())
{
t = Utility.EaseCustom(0.0f, 1.0f, framePositionInAction / key.getNumberOfFrames(frameRate), key.easeCurve);
}
else
{
var ease = Utility.GetEasingFunction((Ease)key.easeType);
t = ease(framePositionInAction, key.getNumberOfFrames(frameRate), key.amplitude, key.period);
}
MaterialKey.ApplyValueLerp(_propertyType, _property, mPropId, materialInstance, key, keyNext, t);
return;
}
}
}
public override void previewFrame(ITarget target, float frame, int frameRate, bool play, float playSpeed)
{
if (keys == null || keys.Count <= 0)
{
return;
}
if (!mIsInit)
{
Init(target);
mMatCtrl.Apply(_matInd, GetMaterial(target));
}
int keyCount = keys.Count;
if (keyCount <= 0)
{
return;
}
int iFrame = Mathf.RoundToInt(frame);
var firstKey = keys[0] as MaterialKey;
//check if only key or behind first key
if (keyCount == 1 || iFrame <= firstKey.frame)
{
firstKey.ApplyValue(_propertyType, _property, mPropId, materialInstance);
return;
}
// if lies on property action
for (int i = 0; i < keys.Count; i++)
{
MaterialKey key = keys[i] as MaterialKey;
if (key.endFrame == -1) //invalid
{
continue;
}
//end of last path in track?
if (iFrame >= key.endFrame)
{
MaterialKey toKey = null;
if (key.interp == Key.Interpolation.None)
{
if (i + 1 == keyCount)
{
toKey = key;
}
}
else if (key.interp == Key.Interpolation.Linear || key.path == null)
{
if (i + 1 == keyCount - 1)
{
toKey = (MaterialKey)keys[i + 1];
}
}
else if (key.interp == Key.Interpolation.Curve)
{
if (i + key.keyCount == keyCount) //end of last path in track?
{
toKey = (MaterialKey)keys[i + key.keyCount - 1];
}
}
if (toKey != null)
{
toKey.ApplyValue(_propertyType, _property, mPropId, materialInstance);
return;
}
continue;
}
if (key.interp == Key.Interpolation.None)
{
key.ApplyValue(_propertyType, _property, mPropId, materialInstance);
}
else if (key.interp == Key.Interpolation.Linear || key.path == null)
{
MaterialKey keyNext = i + 1 < keys.Count ? keys[i + 1] as MaterialKey : null;
if (frame >= (float)key.endFrame && keyNext != null && (!keyNext.canTween || keyNext.endFrame != -1))
{
continue;
}
// if no ease
if (!key.canTween || keyNext == null)
{
key.ApplyValue(_propertyType, _property, mPropId, materialInstance);
return;
}
// else find value using easing function
float numFrames = (float)key.getNumberOfFrames(frameRate);
float framePositionInAction = Mathf.Clamp(frame - (float)key.frame, 0f, numFrames);
float t;
if (key.hasCustomEase())
{
t = Utility.EaseCustom(0.0f, 1.0f, framePositionInAction / key.getNumberOfFrames(frameRate), key.easeCurve);
}
else
{
var ease = Utility.GetEasingFunction((Ease)key.easeType);
t = ease(framePositionInAction, key.getNumberOfFrames(frameRate), key.amplitude, key.period);
}
MaterialKey.ApplyValueLerp(_propertyType, _property, mPropId, materialInstance, key, keyNext, t);
}
else if (key.interp == Key.Interpolation.Curve)
{
float t = Mathf.Clamp01((frame - key.frame) / key.getNumberOfFrames(frameRate));
MaterialKey.ApplyValuePath(_propertyType, _property, mPropId, materialInstance, key, t);
}
return;
}
}