public void SetMaterial(SphereMaterial material)
{
switch (material)
{
case SphereMaterial.Default: GetComponent <MeshRenderer>().material = defaultMaterial; break;
case SphereMaterial.Ring1: GetComponent <MeshRenderer>().material = ring1Material; break;
case SphereMaterial.Ring2: GetComponent <MeshRenderer>().material = ring2Material; break;
case SphereMaterial.Selected: GetComponent <MeshRenderer>().material = selectedMaterial; break;
}
}
void Update()
{
if (paused)
{
Time.timeScale = 0;
}
else
{
Time.timeScale = 1.0f;
}
// upload camera inverse projection matrix:
material.SetMatrix("_InverseProjection", Camera.main.projectionMatrix.inverse);
material.SetMatrix("_CameraMatrix", Camera.main.cameraToWorldMatrix);
// upload sphere attributes:
Vector4[] position = new Vector4[numberOfSpheres];
float[] radius = new float[numberOfSpheres];
Color[] albedo = new Color[numberOfSpheres];
float[] type = new float[numberOfSpheres];
float[] fuzz = new float[numberOfSpheres];
float[] refractive_index = new float[numberOfSpheres];
for (int i = 0; i < numberOfSpheres; i++)
{
GameObject sphere = spheres[i];
position[i] = sphere.transform.position;
radius[i] = sphere.transform.localScale.x / 2.0f;
SphereMaterial material = sphere.GetComponent <SphereMaterial>();
albedo[i] = material.albedo;
type[i] = material.type;
fuzz[i] = material.fuzz;
refractive_index[i] = material.refractive_index;
}
// upload to material:
material.SetVectorArray("_SpherePosition", position);
material.SetFloatArray("_SphereRadius", radius);
material.SetColorArray("_SphereMaterialAlbedo", albedo);
material.SetFloatArray("_SphereMaterialType", type);
material.SetFloatArray("_SphereMaterialFuzz", fuzz);
material.SetFloatArray("_SphereMaterialRefractiveIndex", refractive_index);
}
void Start()
{
material = GameObject.Find("Image").GetComponent <Image>().material;
material.SetInt("_NumberOfSpheres", numberOfSpheres);
GameObject sphereTemplate = GameObject.Find("SphereTemplate");
spheres = new GameObject[numberOfSpheres];
for (int i = 0; i < numberOfSpheres; i++)
{
GameObject sphere = Instantiate(sphereTemplate);
sphere.name = "Sphere" + (i + 1);
sphere.transform.position = new Vector4(Random.Range(-20.0f, 20.0f), Random.Range(-1f, 1f), Random.Range(-20.0f, 20.0f), 1.0f);
float r = Random.Range(1.0f, 3.0f);
sphere.transform.localScale = new Vector3(r, r, r);
SphereMaterial mat = sphere.GetComponent <SphereMaterial>();
mat.albedo = new Color(Random.Range(0.0f, 1.0f), Random.Range(0.0f, 1.0f), Random.Range(0.0f, 1.0f));
if (Random.Range(0.0f, 1.0f) > 0.80f)
{
mat.type = 2; // 2 = dielectric
}
else
{
mat.type = (uint)Random.Range(0, 2); // 0 = diffuse, 1 = metal
}
mat.fuzz = Random.Range(0.0f, 1.0f);
mat.refractive_index = Random.Range(1.31f, 2.42f); // Ice to diamond.
sphere.GetComponent <Rigidbody>().SetDensity(1.0f);
// destroy the rigidbody of some (approx. 50%) of the spheres
if (Random.Range(0.0f, 1.0f) < 0.5)
{
Destroy(sphere.GetComponent <Rigidbody>());
}
spheres[i] = sphere;
}
// setup base sphere (planet):
var planet = spheres[0];
planet.name = "Planet";
planet.transform.position = new Vector4(0.0f, -500.5f, 0.0f, 1.0f);
planet.transform.localScale = new Vector3(1000.0f, 1000.0f, 1000.0f);
var planet_material = planet.GetComponent <SphereMaterial>();
planet_material.albedo = new Color(0.5f, 0.5f, 0.5f);
planet_material.type = 0;
Destroy(planet.GetComponent <Rigidbody>()); // remove its rigid body.
}