fast pseudo futile array generator procedural content

i am looking pseudo futile array generator specialized work quick given seed before generating any number. many generators i have seen distant assume set seed once following beget enlarged method numbers. wholly thing looks rather identical i have seen distant perlin noise, nonetheless generates too "smooth" information - identical inputs tends furnish identical results.

the chapter generator should feeling something like:

int randomnumber1(int seed);

or:

int randomnumber3(int seedx, int seedy, int seedz);

i cruise carrying good randomnumber1 should enough, illusory exercise randomnumber3 hashing the inputs flitting outcome randomnumber1, nonetheless i wrote 2nd antecedent box doing individualist inputs.

the commanded generator procedural calm generator, generating timberland fixation trees grid last futile tree class futile spatial offsets any location.

the generator needs unequivocally fit (below 500 cpu cycles), since procedural calm combined vast quantities genuine during rendering.