public override string ToHlsl()
{
switch (funcName)
{
case "rgb":
// transform values into rgb vector
return($"float4(({value1.ToHlsl()}).x, " +
$"({value2.ToHlsl()}).x, " +
$"({value3.ToHlsl()}).x, 1.0)");
case "lerp":
return($"lerp({value1.ToHlsl()}, {value2.ToHlsl()}, ({value3.ToHlsl()}).x)");
case "clamp":
return($"clamp({value1.ToHlsl()}, {value2.ToHlsl()}, {value3.ToHlsl()})");
}
throw new Exception("invalid string as function name: " + funcName);
}
public override string ToHlsl()
{
// aqcuire opengl function name
if (!GetHlslFunction(funcName, out var start, out var end))
{
throw new Exception("invalid string as function name: " + funcName);
}
return(start + value.ToHlsl() + end);
}
public override string ToHlsl()
{
if (!IsHlslFunction())
{
throw new Exception("invalid string as function name: " + funcName);
}
var val1 = value1.ToHlsl();
var val2 = value2.ToHlsl();
if (funcName == "pow")
{
val1 = $"max({val1}, 0.0)"; // do this to suppress warning and undefined behaviour
}
if (convertToRgb)
{
return("float4(f3(" + funcName + "((" + val1 + ").xyz,(" + val2 + ").xyz)), 1.0)");
}
return(funcName + "(" + val1 + "," + val2 + ")");
}