public override Color GetValue(IKeyframe <Color> keyframe, float keyframeProgress)
{
if (keyframe.StartValue == null || keyframe.EndValue == null)
{
throw new System.InvalidOperationException("Missing values for keyframe.");
}
var startColor = keyframe.StartValue;
var endColor = keyframe.EndValue;
return(GammaEvaluator.Evaluate(keyframeProgress, startColor, endColor));
}
internal void Lerp(GradientColor gc1, GradientColor gc2, float progress)
{
if (gc1._colors.Length != gc2._colors.Length)
{
throw new System.ArgumentException("Cannot interpolate between gradients. Lengths vary (" + gc1._colors.Length + " vs " + gc2._colors.Length + ")");
}
for (var i = 0; i < gc1._colors.Length; i++)
{
_positions[i] = MiscUtils.Lerp(gc1._positions[i], gc2._positions[i], progress);
var gamma = GammaEvaluator.Evaluate(progress, gc1._colors[i], gc2._colors[i]);
_colors[i] = gamma;
}
}
public override Color?GetValue(Keyframe <Color?> keyframe, float keyframeProgress)
{
if (keyframe.StartValue == null || keyframe.EndValue == null)
{
throw new System.InvalidOperationException("Missing values for keyframe.");
}
var startColor = keyframe.StartValue;
var endColor = keyframe.EndValue;
if (ValueCallback != null)
{
return(ValueCallback.GetValueInternal(keyframe.StartFrame.Value, keyframe.EndFrame.Value, startColor, endColor, keyframeProgress, LinearCurrentKeyframeProgress, Progress));
}
return(GammaEvaluator.Evaluate(keyframeProgress, startColor.Value, endColor.Value));
}
