SharpMath.Noise.Init C# (CSharp) Méthode

        public void Init( int _TableSize, int _GradientSeed, int _PermutationSeed )
        {
            m_NoiseSize = (uint) _TableSize;
            Random	GradientRNG = new Random( _GradientSeed );
            Random	PermutationRNG = new Random( _PermutationSeed );

            // Build the noise & permutation tables
            m_NoiseTable = new float4[2*m_NoiseSize];
            m_PermutationTable = new uint[2*m_NoiseSize];

            for ( uint SlotIndex=0; SlotIndex < m_NoiseSize; SlotIndex++ )
            {
                m_NoiseTable[SlotIndex] = m_NoiseTable[m_NoiseSize+SlotIndex] = new float4(	2.0f * (float) GradientRNG.NextDouble() - 1.0f,
                                                                                                    2.0f * (float) GradientRNG.NextDouble() - 1.0f,
                                                                                                    2.0f * (float) GradientRNG.NextDouble() - 1.0f,
                                                                                                    2.0f * (float) GradientRNG.NextDouble() - 1.0f );
                m_PermutationTable[SlotIndex] = SlotIndex;
            }

            // Mix the permutation table by exchanging indices at random
            for ( uint SlotIndex=0; SlotIndex < m_NoiseSize; SlotIndex++ )
            {
                uint	RandomIndex = (uint) PermutationRNG.Next( (int) m_NoiseSize );

                uint	Temp = m_PermutationTable[RandomIndex];
                m_PermutationTable[RandomIndex] = m_PermutationTable[SlotIndex];
                m_PermutationTable[SlotIndex] = Temp;
            }

            // Finalize the permutation table by doubling its size
            for ( uint SlotIndex=0; SlotIndex < m_NoiseSize; SlotIndex++ )
                m_PermutationTable[m_NoiseSize + SlotIndex] = m_PermutationTable[SlotIndex];
        }