private void Update(EvaluationContext context)
{
var blendMode = (BlendModes)BlendMode.GetValue(context);
var gradientA = GradientA.GetValue(context);
var gradientB = GradientB.GetValue(context);
var mixFactor = MixFactor.GetValue(context).Clamp(0, 1);
_steps.Clear();
foreach (var stepA in gradientA.Steps)
{
var positionA = stepA.NormalizedPosition;
var colorA = stepA.Color;
var colorB = gradientB.Sample(positionA);
var blendedColor = BlendColors(colorA, colorB, blendMode, mixFactor);
_steps[positionA] = blendedColor;
}
foreach (var stepB in gradientB.Steps)
{
var positionB = stepB.NormalizedPosition;
var colorB = stepB.Color;
var colorA = gradientA.Sample(positionB);
var blendedColor = BlendColors(colorA, colorB, blendMode, mixFactor);
_steps[positionB] = blendedColor;
}
var positions = _steps.Keys.ToArray();
var steps = new List <Gradient.Step>(positions.Length);
Array.Sort(positions);
foreach (var p in positions)
{
steps.Add(new Gradient.Step()
{
Color = _steps[p],
Id = new Guid(),
NormalizedPosition = p,
});
}
var result = new Gradient()
{
Steps = steps,
Interpolation = Gradient.Interpolations.Linear,
};
Result.Value = result;
}