In chapter 20 when working on the ripple effect of the water. Once we introduce the ripple values for both the X and Y direction it is done as follows:
float2 rippleX = float2(uv.x + timer, uv.y); float2 rippleY = float2(-uv.x, uv.y) + timer;
On the rippleY definition shouldn’t the timer variable be added to the uv.y value instead as to the vector as a whole? I tried both ways and it produces the same effect, but I’m not sure why that is.