public override string ToOpenGl()
{
if (!IsOpenGlFunction())
{
throw new Exception("invalid string as function name: " + funcName);
}
if (convertToRgb)
{
return("vec4(vec3(" + funcName + "(vec3(" + value1.ToOpenGl() + "),vec3(" + value2.ToOpenGl() + "))), 1.0)");
}
return(funcName + "(" + value1.ToOpenGl() + "," + value2.ToOpenGl() + ")");
}
public override string ToOpenGl()
{
// aqcuire opengl function name
if (!GetOpenglFunction(funcName, out var start, out var end))
{
throw new Exception("invalid string as function name: " + funcName);
}
return(start + value.ToOpenGl() + end);
}
public override string ToOpenGl()
{
if (funcName == "rgb")
{
// transform values into rgb vector
return($"vec4(({value1.ToOpenGl()}).r, " +
$"({value2.ToOpenGl()}).r, " +
$"({value3.ToOpenGl()}).r, 1.0)");
}
throw new Exception("invalid string as function name: " + funcName);
}