public ParticleCloud(int pointCount, int pointSize)
{
this.pointCount = pointCount;
// generate points
//
Vector3[] generatedPoints = new Vector3[pointCount];
Random random = new Random();
double radius, latitude, longitude;
float x, y, z;
Diameter = pointCount;
for (int i = 0; i < pointCount; i++)
{
radius = 1 + (pointCount - (random.NextDouble() * pointCount));
longitude = Math.PI - (random.NextDouble() * (2 * Math.PI));
latitude = (random.NextDouble() * Math.PI);
x = (float)(radius * 2 * Math.Cos(longitude) * Math.Sin(latitude));
z = (float)(radius * 2 * Math.Sin(longitude) * Math.Sin(latitude));
y = (float)(radius * 2 * Math.Cos(latitude) + 10);
generatedPoints[i] = new Vector3(x, y, z);
}
// create VBOs
//
staticVbo = new StaticVBO(generatedPoints, new Vector2[4]); // 0 set for tex coords
// create image
//
Bitmap bmp = new Bitmap(Assembly.GetEntryAssembly().GetManifestResourceStream("TK_TestBed.Resources.circle.png"));
pointSpriteImage = new PointSpriteImage(bmp);
// init GL
//
GL.GetFloat(GetPName.PointSizeMax, out pointMaxSize);
// Do not allow point sprites to exceed max size allowed by graphics card
if (pointSize > (int)pointMaxSize) pointSize = (int)pointMaxSize;
}
public PointSpriteImage(Bitmap bitmap)
{
StaticVbo = new StaticVBO(new Vector3[4], new Vector2[4]); // quad + tex coords
Load(bitmap);
}
