public void ProcessOperatorDot()
{
var a = new Vector2(0.2f, 0.3f);
var b = new Vector2(1.0f, 2.3f);
var c = new Vector3(0.2f, 0.3f, 0.4f);
var d = new Vector3(1.0f, 2.3f, 5.4f);
var e = new Vector4(0.2f, 0.3f, 0.4f, 4.0f);
var f = new Vector4(1.0f, 2.3f, 5.4f, 0.6f);
var resultA = Vector2.Dot(a, b);
var resultB = Vector3.Dot(c, d);
var resultC = Vector4.Dot(e, f);
var value_a = new VFXValue <Vector2>(a);
var value_b = new VFXValue <Vector2>(b);
var value_c = new VFXValue <Vector3>(c);
var value_d = new VFXValue <Vector3>(d);
var value_e = new VFXValue <Vector4>(e);
var value_f = new VFXValue <Vector4>(f);
var expressionA = VFXOperatorUtility.Dot(value_a, value_b);
var expressionB = VFXOperatorUtility.Dot(value_c, value_d);
var expressionC = VFXOperatorUtility.Dot(value_e, value_f);
var context = new VFXExpression.Context(VFXExpressionContextOption.CPUEvaluation);
var resultExpressionA = context.Compile(expressionA);
var resultExpressionB = context.Compile(expressionB);
var resultExpressionC = context.Compile(expressionC);
Assert.AreEqual(resultA, resultExpressionA.Get <float>(), 0.0001f);
Assert.AreEqual(resultB, resultExpressionB.Get <float>(), 0.0001f);
Assert.AreEqual(resultC, resultExpressionC.Get <float>(), 0.0001f);
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
VFXExpression lineDelta = (inputExpression[1] - inputExpression[0]);
VFXExpression lineLength = new VFXExpressionMax(VFXOperatorUtility.Dot(lineDelta, lineDelta), VFXValue.Constant(Mathf.Epsilon));
VFXExpression t = VFXOperatorUtility.Dot(inputExpression[2] - inputExpression[0], lineDelta);
t = VFXOperatorUtility.Clamp(t / lineLength, VFXValue.Constant(0.0f), VFXValue.Constant(1.0f));
VFXExpression pointOnLine = (inputExpression[0] + VFXOperatorUtility.CastFloat(t, lineDelta.valueType) * lineDelta);
VFXExpression lineDistance = VFXOperatorUtility.Distance(inputExpression[2], pointOnLine);
return(new VFXExpression[] { pointOnLine, lineDistance });
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
var pos = inputExpression[0];
var center = inputExpression[1];
var wAxis = inputExpression[2];
var angle = inputExpression[3];
var projPoint = center + (wAxis * VFXOperatorUtility.CastFloat(VFXOperatorUtility.Dot(wAxis, pos - center), VFXValueType.Float3));
var uAxis = pos - projPoint;
var vAxis = VFXOperatorUtility.Cross(uAxis, wAxis);
var sinAngle = VFXOperatorUtility.CastFloat(new VFXExpressionSin(angle), VFXValueType.Float3);
var cosAngle = VFXOperatorUtility.CastFloat(new VFXExpressionCos(angle), VFXValueType.Float3);
return(new[] { projPoint + (uAxis * cosAngle) + (vAxis * sinAngle) });
}
protected override sealed VFXExpression[] BuildExpression(VFXExpression[] inputExpression)
{
return(new[] { VFXOperatorUtility.Dot(inputExpression[0], inputExpression[0]) });
}
