public static VFXExpression ApplyToExpressionGraph(VFXPropertyAttribute[] attributes, VFXExpression exp)
{
if (attributes != null)
{
foreach (VFXPropertyAttribute attribute in attributes)
{
switch (attribute.m_Type)
{
case Type.kRange:
exp = VFXOperatorUtility.Clamp(exp, VFXValue.Constant(attribute.m_Min), VFXValue.Constant(attribute.m_Max));
break;
case Type.kMin:
exp = new VFXExpressionMax(exp, VFXOperatorUtility.CastFloat(VFXValue.Constant(attribute.m_Min), exp.valueType));
break;
case Type.kNormalize:
exp = VFXOperatorUtility.Normalize(exp);
break;
case Type.kTooltip:
case Type.kAngle:
case Type.kColor:
case Type.kRegex:
case Type.kDelayed:
break;
default:
throw new NotImplementedException();
}
}
}
return(exp);
}
static public VFXExpression SequentialCircle(VFXExpression center, VFXExpression radius, VFXExpression normal, VFXExpression up, VFXExpression index, VFXExpression count)
{
VFXExpression dt = new VFXExpressionCastUintToFloat(VFXOperatorUtility.Modulo(index, count));
dt = dt / new VFXExpressionCastUintToFloat(count);
var cos = new VFXExpressionCos(dt * VFXOperatorUtility.TauExpression[VFXValueType.Float]) as VFXExpression;
var sin = new VFXExpressionSin(dt * VFXOperatorUtility.TauExpression[VFXValueType.Float]) as VFXExpression;
var left = VFXOperatorUtility.Normalize(VFXOperatorUtility.Cross(normal, up));
radius = new VFXExpressionCombine(radius, radius, radius);
sin = new VFXExpressionCombine(sin, sin, sin);
cos = new VFXExpressionCombine(cos, cos, cos);
return(center + (cos * up + sin * left) * radius);
}
static public VFXExpression SequentialCircle(VFXExpression center, VFXExpression radius, VFXExpression normal, VFXExpression up, VFXExpression index, VFXExpression count, SequentialAddressingMode mode)
{
VFXExpression countForAddressing = count;
if (mode == SequentialAddressingMode.Clamp || mode == SequentialAddressingMode.Mirror)
{
//Explicitly close the circle loop, if `index` equals to `count`, adds an extra step.
countForAddressing = count + OneExpression[VFXValueType.Uint32];
}
VFXExpression dt = ApplyAddressingMode(index, countForAddressing, mode);
dt = new VFXExpressionCastUintToFloat(dt);
dt = dt / new VFXExpressionCastUintToFloat(count);
var cos = new VFXExpressionCos(dt * VFXOperatorUtility.TauExpression[VFXValueType.Float]) as VFXExpression;
var sin = new VFXExpressionSin(dt * VFXOperatorUtility.TauExpression[VFXValueType.Float]) as VFXExpression;
var left = VFXOperatorUtility.Normalize(VFXOperatorUtility.Cross(normal, up));
radius = new VFXExpressionCombine(radius, radius, radius);
sin = new VFXExpressionCombine(sin, sin, sin);
cos = new VFXExpressionCombine(cos, cos, cos);
return(center + (cos * up + sin * left) * radius);
}
public static VFXExpression ApplyToExpressionGraph(VFXPropertyAttribute[] attributes, VFXExpression exp)
{
if (attributes != null)
{
foreach (VFXPropertyAttribute attribute in attributes)
{
switch (attribute.m_Type)
{
case Type.kRange:
switch (exp.valueType)
{
case VFXValueType.Int32:
exp = VFXOperatorUtility.Clamp(exp, VFXValue.Constant((int)attribute.m_Min), VFXValue.Constant((int)attribute.m_Max), false);
break;
case VFXValueType.Uint32:
exp = VFXOperatorUtility.Clamp(exp, VFXValue.Constant((uint)attribute.m_Min), VFXValue.Constant((uint)attribute.m_Max), false);
break;
case VFXValueType.Float:
case VFXValueType.Float2:
case VFXValueType.Float3:
case VFXValueType.Float4:
exp = VFXOperatorUtility.Clamp(exp, VFXValue.Constant(attribute.m_Min), VFXValue.Constant(attribute.m_Max));
break;
default:
throw new NotImplementedException(string.Format("Cannot use RangeAttribute on value of type: {0}", exp.valueType));
}
break;
case Type.kMin:
switch (exp.valueType)
{
case VFXValueType.Int32:
exp = new VFXExpressionMax(exp, VFXValue.Constant((int)attribute.m_Min));
break;
case VFXValueType.Uint32:
exp = new VFXExpressionMax(exp, VFXValue.Constant((uint)attribute.m_Min));
break;
case VFXValueType.Float:
case VFXValueType.Float2:
case VFXValueType.Float3:
case VFXValueType.Float4:
exp = new VFXExpressionMax(exp, VFXOperatorUtility.CastFloat(VFXValue.Constant(attribute.m_Min), exp.valueType));
break;
default:
throw new NotImplementedException(string.Format("Cannot use MinAttribute on value of type: {0}", exp.valueType));
}
break;
case Type.kNormalize:
exp = VFXOperatorUtility.Normalize(exp);
break;
case Type.kTooltip:
case Type.kAngle:
case Type.kColor:
case Type.kRegex:
case Type.kDelayed:
case Type.kBitField:
break;
default:
throw new NotImplementedException();
}
}
}
return(exp);
}
protected override VFXExpression ApplyPatchExpression(VFXExpression expression)
{
return(VFXOperatorUtility.Normalize(expression));
}
public VFXExpression ApplyToExpressionGraph(VFXExpression exp)
{
if (m_GraphAttributes == null)
{
return(exp);
}
foreach (PropertyAttribute attribute in m_GraphAttributes)
{
if (attribute is RangeAttribute)
{
var rangeAttribute = (RangeAttribute)attribute;
switch (exp.valueType)
{
case VFXValueType.Int32:
exp = VFXOperatorUtility.Clamp(exp, VFXValue.Constant((int)rangeAttribute.min), VFXValue.Constant((int)rangeAttribute.max), false);
break;
case VFXValueType.Uint32:
exp = VFXOperatorUtility.Clamp(exp, VFXValue.Constant((uint)rangeAttribute.min), VFXValue.Constant((uint)rangeAttribute.max), false);
break;
case VFXValueType.Float:
case VFXValueType.Float2:
case VFXValueType.Float3:
case VFXValueType.Float4:
exp = VFXOperatorUtility.Clamp(exp, VFXValue.Constant(rangeAttribute.min), VFXValue.Constant(rangeAttribute.max));
break;
default:
throw new NotImplementedException(string.Format("Cannot use RangeAttribute on value of type: {0}", exp.valueType));
}
}
else if (attribute is MinAttribute)
{
var minAttribute = (MinAttribute)attribute;
switch (exp.valueType)
{
case VFXValueType.Int32:
exp = new VFXExpressionMax(exp, VFXValue.Constant((int)minAttribute.min));
break;
case VFXValueType.Uint32:
exp = new VFXExpressionMax(exp, VFXValue.Constant((uint)minAttribute.min));
break;
case VFXValueType.Float:
case VFXValueType.Float2:
case VFXValueType.Float3:
case VFXValueType.Float4:
exp = new VFXExpressionMax(exp, VFXOperatorUtility.CastFloat(VFXValue.Constant(minAttribute.min), exp.valueType));
break;
default:
throw new NotImplementedException(string.Format("Cannot use MinAttribute on value of type: {0}", exp.valueType));
}
}
else if (attribute is NormalizeAttribute)
{
exp = VFXOperatorUtility.Normalize(exp);
}
else if (attribute is EnumAttribute)
{
var enumAttribute = (EnumAttribute)attribute;
exp = new VFXExpressionMin(exp, VFXValue.Constant((uint)enumAttribute.values.Length - 1));
}
else
{
throw new NotImplementedException("Unrecognized expression attribute: " + attribute);
}
}
return(exp);
}