public virtual void Update()
{
float dt = Time.deltaTime;
for (int i = 0; i < m_instances.Length; ++i)
{
m_instances[i].time += dt;
}
m_renderer.AddInstances(m_instances);
m_renderer.EachMaterials((m) => {
m.SetVector("g_sphere", new Vector4(m_sphere_center.x, m_sphere_center.y, m_sphere_center.z, m_sphere_radius));
});
}
