// Update is called once per frame
void Update()
{
var s = Input.mousePosition - mouse0;
s.Normalize();
s *= 10;
RaycastHit hit;
if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out hit))
{
Vector2Int v = Vector2Int.RoundToInt(hit.textureCoord * N);
if (Input.GetKey(KeyCode.Mouse0))
{
fluid.AddDensity(v.x, v.y, 100);
fluid.AddVelocity(v.x, v.y, s.x, s.y);
}
}
var x = Mathf.Sin(Time.time) * 40;
var y = Mathf.Cos(Time.time) * 40;
//fluid.AddDensity(N / 2, N / 2, 10);
//fluid.AddVelocity(N / 2, N / 2, x, y );
fluid.AddVelocity((int)(N / 1.5), N / 2, -4 * 2, 0);
fluid.AddVelocity((int)(N / 3), N / 2, 4 * 2, 0);
//fluid.AddVelocity(N / 4, N / 4, x *-1, y * -1);
if (Input.GetKeyDown(KeyCode.Space))
{
fluid.AddDensity(2, 3, 100);
fluid.AddVelocity(2, 3, 2, 4);
}
tex.filterMode = filtermode;
FluidStep(fluid);
RenderFluid();
mouse0 = Input.mousePosition;
}
void Start()
{
vBuffer = new ComputeBuffer(N * N, 4);
v0Buffer = new ComputeBuffer(N * N, 4);
kernel = shader.FindKernel("LinearSolve");
shader.SetBuffer(kernel, "v", vBuffer);
shader.SetBuffer(kernel, "v0", v0Buffer);
shader.SetInt("size", N);
tex = new Texture2D(N, N, TextureFormat.RGB24, false);
tex.wrapMode = TextureWrapMode.Clamp;
tex.filterMode = filtermode;
fluid = new MikeAsh_Fluid(0.1f, 0.0001f, 0.0001f, N);
RenderFluid();
fluid.AddDensity(2, 3, 100);
fluid.AddVelocity(2, 3, 2, 4);
}