private void SetMagicNumbers(BasisType type)
{
// This function is a damned hack.
// The underlying noise functions don't return values in the range [-1,1] cleanly, and the ranges vary depending
// on basis type and dimensionality. There's probably a better way to correct the ranges, but for now I'm just
// setting he magic numbers scale and offset manually to empirically determined magic numbers.
switch (type)
{
case BasisType.VALUE:
this.scale[0] = 1.0;
this.offset[0] = 0.0;
this.scale[1] = 1.0;
this.offset[1] = 0.0;
this.scale[2] = 1.0;
this.offset[2] = 0.0;
this.scale[3] = 1.0;
this.offset[3] = 0.0;
break;
case BasisType.GRADIENT:
this.scale[0] = 1.86848;
this.offset[0] = -0.000118;
this.scale[1] = 1.85148;
this.offset[1] = -0.008272;
this.scale[2] = 1.64127;
this.offset[2] = -0.01527;
this.scale[3] = 1.92517;
this.offset[3] = 0.03393;
break;
case BasisType.GRADIENTVALUE:
this.scale[0] = 0.6769;
this.offset[0] = -0.00151;
this.scale[1] = 0.6957;
this.offset[1] = -0.133;
this.scale[2] = 0.74622;
this.offset[2] = 0.01916;
this.scale[3] = 0.7961;
this.offset[3] = -0.0352;
break;
case BasisType.WHITE:
this.scale[0] = 1.0;
this.offset[0] = 0.0;
this.scale[1] = 1.0;
this.offset[1] = 0.0;
this.scale[2] = 1.0;
this.offset[2] = 0.0;
this.scale[3] = 1.0;
this.offset[3] = 0.0;
break;
default:
this.scale[0] = 1.0;
this.offset[0] = 0.0;
this.scale[1] = 1.0;
this.offset[1] = 0.0;
this.scale[2] = 1.0;
this.offset[2] = 0.0;
this.scale[3] = 1.0;
this.offset[3] = 0.0;
break;
}
}
}
