Streaky Concrete

streakyConcrete.cs

public static void modConcrete(ref Texture2D modify, GraphicsDevice gDevice, Random tRandom)
        {
            if (modify == null)
                throw new Exception("Null texture.");

            //float colorFloat = (float)(tRandom.Next(25, 75)) / 255.0f;
            //Color bgColor = new Color(colorFloat, colorFloat, colorFloat, 1.0f);
            Color setColor;
            simplexCarmody simC = new simplexCarmody(tRandom);
            double noise = 0f;

            Color[] texData = new Color[(modify.Width * modify.Height)];

            for (int y = 0; y < modify.Height; y++)
            {
                //noise = (simC.noise(y * 2, y * 8, 5) + 1) * 5;

                noise += (simC.noise(y * 2, y * 3, 5) + 1) * 0.25f;
                noise = (noise - (int)noise) * 1f;

                // Octave 3: Streak
                //noise += simC.noise(x, y * 100, 5) * 0.7f;

                for (int x = 0; x < modify.Width; x++)
                {
                    double tempNoise = noise;
                    // Octave 2: Fine noise
                    tempNoise += simC.noise(x * 200, y * 200, 5) * 0.5f;

                    // Adjust range to [0, 1]
                    tempNoise = (tempNoise + 1) / 2;

                    int red = (int)(tempNoise * 55);
                    int green = (int)(tempNoise * 55);
                    int blue = (int)(tempNoise * 55);

                    if (red > 255) red = 255;
                    else if (red < 0) red = 0;
                    if (green > 255) green = 255;
                    else if (green < 0) green = 0;
                    if (blue > 255) blue = 255;
                    else if (blue < 0) blue = 0;

                    setColor = new Color(red, green, blue);

                    texData[y * modify.Width + x] = setColor;
                }
            }

            modify.SetData<Color>(texData);
        }