All the best for the New Year!
This is my new package for generating and rendering of Point Cloud.
Coming soon.
1 Like
nice 1
Awesome !
It can be excellent for galaxies :
PointF[] points;
public PointF[] GenerateGalaxy(int numOfStars, int numOfArms, float spin, double armSpread, double starsAtCenterRatio)
{
List<PointF> result = new List<PointF>(numOfStars);
for (int i = 0; i < numOfArms; i++)
{
result.AddRange(GenerateArm(numOfStars / numOfArms, (float)i / (float)numOfArms, spin, armSpread, starsAtCenterRatio));
}
return result.ToArray();
}
public PointF[] GenerateArm(int numOfStars, float rotation, float spin, double armSpread, double starsAtCenterRatio)
{
PointF[] result = new PointF[numOfStars];
Random r = new Random();
for (int i = 0; i < numOfStars; i++)
{
double part = (double)i / (double)numOfStars;
part = Math.Pow(part, starsAtCenterRatio);
float distanceFromCenter = (float)part;
double position = (part * spin + rotation) * Math.PI * 2;
double xFluctuation = (Pow3Constrained(r.NextDouble()) - Pow3Constrained(r.NextDouble())) * armSpread;
double yFluctuation = (Pow3Constrained(r.NextDouble()) - Pow3Constrained(r.NextDouble())) * armSpread;
float resultX = (float)Math.Cos(position) * distanceFromCenter / 2 + 0.5f + (float)xFluctuation;
float resultY = (float)Math.Sin(position) * distanceFromCenter / 2 + 0.5f + (float)yFluctuation;
result[i] = new PointF(resultX, resultY);
}
return result;
}
public static double Pow3Constrained(double x)
{
double value = Math.Pow(x - 0.5, 3) * 4 + 0.5d;
return Math.Max(Math.Min(1, value), 0);
}
Example:
points = GenerateGalaxy(80000, 2, 3f, 0.1d, 3);
1 Like
That was my immediate thought, I remember doing something similar years ago.
Iām looking forward to this Arkhivrag!
Is this project still alive?
