While (LogiX node)

While
Inputs
	Impulse	Run
	Bool	Condition
Outputs
	Impulse	LoopStart
	Impulse	LoopIteration
	Impulse	LoopEnd

The While node is used to fire impulses from the LoopIteration output until the Condition becomes True after an impulse is received at Run.

Usage

The LoopStart output fires an impulse once after an impulse is received at Run. The impulse chain will complete before any impulses are fired from LoopIteration.

The LoopIteration output fires impulses sequentially until the Condition becomes False. Each impulse chain started from LoopIteration completes before the following one is fired.

The LoopEnd output fires an impulse once the final impulse chain started from LoopIteration has ended.

Note that all impulse chains started from this node effectively continue the one which arrived at Run, meaning that any temporary values from previous nodes are still available. All iterations from LoopIteration complete within a single frame update and therefore this can produce framerate hitches if an excessively demanding computation is performed. There is a failsafe which will put this node into an error state (node visual turns red) if a frame is delayed excessively - this helps prevent complete freezes. Use Secondary on While (R on desktop) to clear the error state.

Examples

The While node is useful when looping and the required number of iterations cannot be determined in advance. If similar looping behavior is required, but the number of required iterations can be fixed, use the For node instead.

Node Menu

Flow
Back	Events	Boolean Latch	Delay	Delay With Value	Dynamic Impulse Receiver	Dynamic Impulse Receiver With Value`1
Dynamic Impulse Trigger	Dynamic Impulse Trigger With Value`1	Fire On Change	Fire On False	Fire On True	Fire While True	For
If	Impulse Demultiplexer	Impulse Multiplexer	Local Fire On Change`1	Local Fire On False	Local Fire On True	Local Impulse Timeout
Local Leaky Impulse Bucket	One Per Frame	Pulse Random	Sequence	Timer	Update	Updates Delay
Updates Delay With Value	While