Hi all, below is the pseudocode for the water ripple calucation:
damping = some non-integer between 0 and 1
begin loop
for every non-edge element:
loop
Buffer2(x, y) = (Buffer1(x-1,y)
Buffer1(x+1,y)
Buffer1(x,y+1)
Buffer1(x,y-1)) / 2 - Buffer2(x,y)
Buffer2(x,y) = Buffer2(x,y) * damping
end loop
Display Buffer2
Swap the buffers
end loop
I want to ask why buffer2(x,y) need to be calculated in this way:
Buffer2(x, y) = (Buffer1(x-1,y)
Buffer1(x+1,y)
Buffer1(x,y+1)
Buffer1(x,y-1)) / 2 - Buffer2(x,y)
??
thx a lot