Spike Spread (K) - Sets how quickly Primary Spikes will spread out as the distance increases from the star Primary Spike Spread Control

Click the control or press K to activate.

The Spike Spread control, part of the Primary Diffraction Spikes control group, allows you to make the Primary Spikes diverge as the distance from the star increases.

Higher Spike Spread values make the Primary Spikes spread more/faster.

Note that with this control turned all the way down the Primary Spikes will stay equally sharp at all distances.