protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
if (mask.Length == 0)
{
return new VFXExpression[] { }
}
;
var inputComponents = (inputExpression.Length > 0) ? VFXOperatorUtility.ExtractComponents(inputExpression[0]).ToArray() : new VFXExpression[0];
var componentStack = new Stack <VFXExpression>();
int outputSize = mask.Length;
for (int iComponent = 0; iComponent < outputSize; iComponent++)
{
char componentChar = char.ToLower(mask[iComponent]);
int currentComponent = Math.Min(CharToComponentIndex(componentChar), inputComponents.Length - 1);
componentStack.Push(inputComponents[currentComponent]);
}
VFXExpression finalExpression = null;
if (componentStack.Count == 1)
{
finalExpression = componentStack.Pop();
}
else
{
finalExpression = new VFXExpressionCombine(componentStack.Reverse().ToArray());
}
return(new[] { finalExpression });
}
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
var components = VFXOperatorUtility.ExtractComponents(inputExpression[0]);
VFXExpression rgb = new VFXExpressionCombine(components.Take(3).ToArray());
return(new[] { new VFXExpressionRGBtoHSV(rgb) });
}
protected override VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
var density = VFXOperatorUtility
.ExtractComponents(new VFXAttributeExpression(FluvioFXAttribute.DensityPressure))
.ToArray() [1];
var range = VFXOperatorUtility.ExtractComponents(inputExpression[0]).ToArray();
return(new VFXExpression[]
{
InverseLerp(density, range[0], range[1])
});
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
var allComponent = inputExpression.SelectMany(e => VFXOperatorUtility.ExtractComponents(e))
.Take(4)
.ToArray();
if (allComponent.Length == 0)
{
return(new VFXExpression[] {});
}
else if (allComponent.Length == 1)
{
return(allComponent);
}
return(new[] { new VFXExpressionCombine(allComponent) });
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
var mask = new Component[4] {
x, y, z, w
};
// var mask = new Component[4] { Component.X, Component.Y, Component.Z, Component.W };
int maskSize = 4;
while (maskSize > 1 && mask[maskSize - 1] == Component.None)
{
--maskSize;
}
var inputComponents = VFXOperatorUtility.ExtractComponents(inputExpression[0]).ToArray();
var componentStack = new Stack <VFXExpression>();
int outputSize = GetMaskSize(mask);
for (int iComponent = 0; iComponent < outputSize; iComponent++)
{
Component currentComponent = mask[iComponent];
if (currentComponent != Component.None && (int)currentComponent < inputComponents.Length)
{
componentStack.Push(inputComponents[(int)currentComponent]);
}
else
{
componentStack.Push(VFXValue <float> .Default);
}
}
VFXExpression finalExpression = null;
if (componentStack.Count == 1)
{
finalExpression = componentStack.Pop();
}
else
{
finalExpression = new VFXExpressionCombine(componentStack.Reverse().ToArray());
}
return(new[] { finalExpression });
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
VFXExpression[] rgb = VFXOperatorUtility.ExtractComponents(new VFXExpressionHSVtoRGB(inputExpression[0])).Take(3).ToArray();
return(new[] { new VFXExpressionCombine(new[] { rgb[0], rgb[1], rgb[2], VFXValue.Constant(1.0f) }) });
}
