void Awake()
{
compute = GameObject.Find("NbodyCompute").GetComponent <NbodyCompute>();
dropdown = GetComponent <Dropdown>();
index = dropdown.value;
value = float.Parse(dropdown.options[index].text);
//Debug.Log(Name+" "+value);
}
void Awake()
{
compute = GameObject.Find("NbodyCompute").GetComponent <NbodyCompute>();
slider = GetComponent <Slider>();
//can I make this more general??
if (Name == "NumBodies")
{
value = (int)compute.GetType().GetField(Name).GetValue(compute);
}
else if (Name == "tScale")
{
value = Mathf.Log10((float)compute.GetType().GetField(Name).GetValue(compute));
}
else
{
value = (float)compute.GetType().GetField(Name).GetValue(compute);
}
slider.value = value;
}
// Use this for initialization
void Start()
{
//CameraTarget = GameObject.Find("CameraController").GetComponent<MouseOrbitImproved>().target;
CameraTarget = GameObject.Find("MainCamera").GetComponent <MouseOrbitImproved>().target;
NbodyCompute nb = GetComponent <Transform>().gameObject.GetComponent <NbodyCompute>();
NumBodies = nb.NumBodies;
Ninstances = Mathf.Max(NumBodies / instance_max, 1);
transformList = new Matrix4x4[Ninstances][];
instances = new int[Ninstances];
MeshFilter mf = GetComponent <Transform>().gameObject.AddComponent <MeshFilter>();
mesh = new Mesh();
//mesh.bounds = new Bounds(Vector3.zero, Vector3.one*10000.0f);
//mesh.bounds = new Bounds(new Vector3(23454.93f, 0.0f, 0.0f), Vector3.one*100000.0f);
mf.mesh = mesh;
// Create a basic quad.
Vector3[] vertices = new Vector3[4];
vertices[0] = new Vector3(-1, -1, 0);
vertices[1] = new Vector3(1, -1, 0);
vertices[2] = new Vector3(-1, 1, 0);
vertices[3] = new Vector3(1, 1, 0);
mesh.vertices = vertices;
int[] tri = new int[6];
tri[0] = 0;
tri[1] = 2;
tri[2] = 1;
tri[3] = 2;
tri[4] = 3;
tri[5] = 1;
mesh.triangles = tri;
// Only 1023 objects can be rendered as instanced.
// So we split the objects into sets of size 1023.
for (int set = 0; set < Ninstances; set++)
{
instances[set] = instance_max;
if (set == Ninstances - 1)
{
instances[set] = Mathf.Min(NumBodies, NumBodies % instance_max); //to account for <1023 objects
}
transformList[set] = new Matrix4x4[instances[set]];
for (int i = 0; i < instances[set]; i++)
{
Matrix4x4 matrix = new Matrix4x4();
//matrix.SetTRS(Vector3.zero, Quaternion.Euler(Vector3.zero), Vector3.one);
//THIS SETTING IS VERY IMPORTANT. Instancing will only be active (and therefore the object will only be drawn) when the first Vector3 is within the camera's view. For instance, if it is set to Vector3.zero, the Nbody particles will only be drawn when the scene's origin is in view of the camera!
matrix.SetTRS(CameraTarget.position, Quaternion.Euler(Vector3.zero), Vector3.one);
transformList[set][i] = matrix;
}
}
}
