# Stroke Options
This panel displays various options to modify your stroke.
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## Stroke
**Step** : Brushes are made of stamps and a stroke is a continuous line of stamps. Step is the distance between two stamps.(Example below shows various steps : 25, 15, 0)
**Size adaptative**
If the option is unchecked, step will keep the same value in pixels.
*Size Adaptative Unticked (Step : 30 | Size : 50px - 100px - 200px) :*
If the option is checked, the Step value will be in %. Your brush step will be calculated that way : Brush Size * Step %. So, if your Brush is 50 pixels and your Step is 10%, the gap between two stamps will be of 5 pixels.
*Size Adaptative Ticked (Step : 30 | Size : 50px - 100px - 200px) :*
**Paint on tick** : to enable only if your Odyssey Brush use "Event on Tick" and not "Event on Step".
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## Interpolation
**Type** : calculates the best way to display a stroke, based on information sent by your mouse / graphic tablet.
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## Smoothing
**Method** : At the moment, only "Average" mode works.
**Strength** : The stronger, the smoother your stroke is.
**Enabled** : active or inactive smoothing.
**Real time** : will smooth the stroke in real-time if enabled.
**Catch up** : will catch up the cursor as long as stylus / mouse left button is down.
Iliad User Documentation 
