void Update()
{
lightDir.x = Mathf.Sin(Time.timeSinceLevelLoad) * 0.5f;
lightDir.y = Mathf.Cos(Time.timeSinceLevelLoad * 0.25f);
m.SetVector("_LightDirection", lightDir);
Graphics.Blit(fbo.GetReadTex(), fbo.GetWriteTex(), m, (int)Pass.Displace);
fbo.Swap();
}
void Update()
{
Vector3 mousePos = Input.mousePosition;
Vector2 current = new Vector2(mousePos.x / Screen.width, mousePos.y / Screen.height);
mat.SetVector("_Prev", previous);
if (dragging)
{
mat.SetVector("_Brush", new Vector3(current.x, current.y, 0.015f));
}
else
{
mat.SetVector("_Brush", new Vector3(0, 0, 0));
}
if (Input.GetMouseButtonDown(0))
{
dragging = true;
}
else if (Input.GetMouseButtonUp(0))
{
dragging = false;
}
previous = current;
mat.SetFloat("_Alpha", alpha);
mat.SetFloat("_Evaporation", evaporation);
for (int i = 0; i < iterations; i++)
{
Graphics.Blit(fpp.GetReadTex(), fpp.GetWriteTex(), mat, 1); // update
fpp.Swap();
}
}