/// <summary>
/// Random stars in a box, filling a buffer
/// </summary>
/// <param name="buffer">GL Buffer</param>
/// <param name="number">Count</param>
/// <param name="left">Left side of box</param>
/// <param name="right">Right side of box</param>
/// <param name="front">Front side of box</param>
/// <param name="back">Back side of box</param>
/// <param name="top">Top side of box</param>
/// <param name="bottom">Bottom side of box</param>
/// <param name="rnd">Random class to get values from, or null for autocreate</param>
/// <param name="seed">Seed for random class if rnd=null </param>
/// <param name="w">Value for Vector4.w</param>
/// <returns>Vector4[]</returns>
public static void RandomStars4(GLBuffer buffer, int number, float left, float right, float front, float back, float top, float bottom,
Random rnd = null, int seed = 23, float w = 1)
{
if (rnd == null)
{
rnd = new Random(seed);
}
buffer.AlignFloat();
for (int s = 0; s < number; s++)
{
float[] a = new float[] { rnd.Next(100000) * (right - left) / 100000.0f + left,
rnd.Next(100000) * (top - bottom) / 100000.0f + bottom,
rnd.Next(100000) * (back - front) / 100000.0f + front,
w };
buffer.WriteCont(a);
}
}