have try to stop drawing anything ? (even not the background)

this should have i suppose a similar effect. the buffer won't change.

have try to stop drawing anything ? (even not the background)
this should have i suppose a similar effect. the buffer won't change.

nope, that doesnt help, doesnt make sense...
you need to draw it every frame as the tiler moves the camera around your sketch.
but you shouldnt have a moving animation cause it shouldnt change while saving the tiles.
How does your sketch work?

if it moves in the draw loop. think of using a for loop for your draw loop, and make it static this way.

Something is making your visualisation 'move', it's not moving automatically. You are incrementing some value of your own or you are using frameCount or something. Now whatever that value or those values are that you are changing each draw cycle. You gotta stop those temporarily from increasing (or switch to a custom variable if you're using frameCount), which will pause the movement, but NOT the draw cycle (which is why noLoop() doesn't work).

Either find the incrementing variables in your sketch yourself or post some code so someone here can point them out.

For example in this simple case...

1. ellipse(x,10,10,10);
2. x++; // this variable x is causing the movement

...so you gotta make it dependent on a boolean so you're able to toggle between play (true) and pause (false)

1. ellipse(x,10,10,10);
2. if (playPause) { x++; }

Then at the start of the tiling process set it to pause and at the end back to play. And so on...

I don't know where you heard about the static constraint for this. The only thing you have to care about is that there's no animation at all happening whilst rendering individual tiles. But this can be easily achieved by splitting the code of your normal draw() function into two parts: 1) a conditional "update()" function/code block which will actually progress/manipulate any animation parameters and is only being executed if tiling is NOT currently active. 2) is the actual rendering of the current animation parameter states and is ALWAYS executed, also whilst tiling.

For a complete project example using this technique, check out my V&A Decode identity generator on Google Code: http://code.google.com/p/decode/

The draw() function of this project is here (where you can see this in action) code.google.com/p/decode/source/browse/DecodeIdent/DecodeIdent.pde#129