public void ProcessExpressionSafeNormalize([ValueSource("s_ProcessExpressionSafeNormalizeValues")] Vector2 input)
{
var valueInput = new VFXValue <Vector2>(input);
var expression = VFXOperatorUtility.SafeNormalize(valueInput);
var context = new VFXExpression.Context(VFXExpressionContextOption.CPUEvaluation);
var resultExpression = context.Compile(expression);
var expectedResult = input.normalized;
Assert.AreEqual(expectedResult, resultExpression.Get <Vector2>());
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
if (safeNormalize)
{
return new[] { VFXOperatorUtility.SafeNormalize(inputExpression[0]) }
}
;
else
{
return new[] { VFXOperatorUtility.Normalize(inputExpression[0]) }
};
}
private void GetPositionAndDirectionFromIndex(VFXExpression indexExpr, IEnumerable <VFXNamedExpression> expressions, out VFXExpression positionExpr, out VFXExpression directionExpr)
{
if (shape == SequentialShape.Line)
{
var start = expressions.First(o => o.name == "Start").exp;
var end = expressions.First(o => o.name == "End").exp;
var count = expressions.First(o => o.name == "Count").exp;
positionExpr = VFXOperatorUtility.SequentialLine(start, end, indexExpr, count, mode);
directionExpr = VFXOperatorUtility.SafeNormalize(end - start);
}
else if (shape == SequentialShape.Circle)
{
var center = expressions.First(o => o.name == "Center").exp;
var normal = expressions.First(o => o.name == "Normal").exp;
var up = expressions.First(o => o.name == "Up").exp;
var radius = expressions.First(o => o.name == "Radius").exp;
var count = expressions.First(o => o.name == "Count").exp;
positionExpr = VFXOperatorUtility.SequentialCircle(center, radius, normal, up, indexExpr, count, mode);
directionExpr = VFXOperatorUtility.SafeNormalize(positionExpr - center);
}
else if (shape == SequentialShape.ThreeDimensional)
{
var origin = expressions.First(o => o.name == "Origin").exp;
var axisX = expressions.First(o => o.name == "AxisX").exp;
var axisY = expressions.First(o => o.name == "AxisY").exp;
var axisZ = expressions.First(o => o.name == "AxisZ").exp;
var countX = expressions.First(o => o.name == "CountX").exp;
var countY = expressions.First(o => o.name == "CountY").exp;
var countZ = expressions.First(o => o.name == "CountZ").exp;
positionExpr = VFXOperatorUtility.Sequential3D(origin, axisX, axisY, axisZ, indexExpr, countX, countY, countZ, mode);
directionExpr = VFXOperatorUtility.SafeNormalize(positionExpr - origin);
}
else
{
throw new NotImplementedException();
}
}
