private void Update()
{
intervalTimer += Time.deltaTime;
if (intervalTimer >= interval)
{
intervalTimer = 0f;
heatMap.AddPosition(Mathf.RoundToInt(Input.mousePosition.x), Mathf.RoundToInt(Input.mousePosition.y));
}
if (Input.GetKeyDown(KeyCode.Space))
{
var tex = heatMap.Export(heatmapGradient, radius);
exportTarget.sprite = Sprite.Create(tex, new Rect(0f, 0f, tex.width, tex.height), new Vector2(.5f, .5f));
}
}