protected override VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
//round(frac(x*F))
var expression = inputExpression[0] * inputExpression[1];
return(new[] { VFXOperatorUtility.Round(VFXOperatorUtility.Frac(expression)) });
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
// abs(frac(x*F))
var res = new VFXExpressionAbs(VFXOperatorUtility.Frac(inputExpression[0] * inputExpression[1]));
return(new[] { VFXOperatorUtility.Lerp(inputExpression[2], inputExpression[3], res) });
}
protected override VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
VFXExpression[] output = new VFXExpression[]
{
VFXOperatorUtility.Lerp(inputExpression[1].x, inputExpression[1].y, VFXOperatorUtility.Frac(VFXBuiltInExpression.TotalTime / inputExpression[0])),
};
return(output);
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
//round(frac(x*F))
var expression = inputExpression[0] * inputExpression[1];
var res = VFXOperatorUtility.Round(VFXOperatorUtility.Frac(expression));
return(new[] { VFXOperatorUtility.Lerp(inputExpression[2], inputExpression[3], res) });
}
protected override VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
// 2 * abs(round(frac(x*F)) - frac(x*F))
var expression = inputExpression[0] * inputExpression[1];
var dX = VFXOperatorUtility.Frac(expression);
var slope = VFXOperatorUtility.Round(dX);
var two = VFXOperatorUtility.TwoExpression[expression.valueType];
return(new[] { two *(new VFXExpressionAbs(slope - dX)) });
}
public void ProcessOperatorFrac()
{
var a = -1.5f;
var b = 0.2f;
var resultA = a - Mathf.Floor(a);
var resultB = b - Mathf.Floor(b);
var value_a = new VFXValue <float>(a);
var value_b = new VFXValue <float>(b);
var expressionA = VFXOperatorUtility.Frac(value_a);
var expressionB = VFXOperatorUtility.Frac(value_b);
var context = new VFXExpression.Context(VFXExpressionContextOption.CPUEvaluation);
var resultExpressionA = context.Compile(expressionA);
var resultExpressionB = context.Compile(expressionB);
Assert.AreEqual(resultA, resultExpressionA.Get <float>());
Assert.AreEqual(resultB, resultExpressionB.Get <float>());
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
return(new[] { VFXOperatorUtility.Frac(inputExpression[0]) });
}
protected override VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
// abs(frac(x*F))
return(new[] { new VFXExpressionAbs(VFXOperatorUtility.Frac(inputExpression[0] * inputExpression[1])) });
}
