C++ (Cpp) SmoothedNoise1D Examples

Example #1

File: perlin.cpp Project: paud/d2x-xl

double InterpolatedNoise1D (double x)
{
double xInt, xFrac = modf (x, &xInt);
double v1 = SmoothedNoise1D ((long) xInt);
double v2 = SmoothedNoise1D ((long) xInt + 1);
return CosineInterpolate (v1, v2, xFrac);
}

Example #2

File: VS_Perlin.cpp Project: vectorstorm/vectorstorm

float
vsPerlinOctave::InterpolatedNoise1D(float x)
{
	int integer_X		= int(x);
	float fractional_X	= x - integer_X;

	vsAssert( fractional_X >= 0.f && fractional_X < 1.f, "Maths error:  fractional_X out of bounds!" );

	fractional_X = (3.0f * fractional_X * fractional_X) - (2.0f * fractional_X * fractional_X * fractional_X);

	float v1 = SmoothedNoise1D(integer_X);
	float v2 = SmoothedNoise1D(integer_X + 1);

	return vsInterpolate(fractional_X, v1 , v2);
}