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wow
04-19-2004, 05:04 AM
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