Function PerlinNoise1D

trinity/TriMath.cpp:1063–1067

}

double PerlinNoise1D( double x, double invAmplitude, double frequency, int octaves )
{
	static TriPerlinNoise noise{ 0 }; // fixed seed: reproducible across runs (matches legacy)
	return noise.FractalSum( x, size_t( std::max( 0, octaves ) ), 1.0 / invAmplitude, frequency );
}


bool ConvertProjectionCoordToWorldPickRay( float x, float y, const Matrix* projMat, const Matrix* viewMat, Vector3* rayStart, Vector3* rayDir )