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- The dynamic distance modifier allows you to dynamically (once per frame)
- change the source pixels for each ring of pixels out from the center.
- In the 'pixel' code section, 'd' represents the distance in pixels
- the current ring is from the center, and code can modify it to
- change the distance from the center where the source pixels for
- that ring would be read. This is a terrible explanation, and if
- you want to make a better one send it to me.
- Examples:
- Zoom in: 'd=d*0.9'
- Zoom out: 'd=d*1.1'
- Back and forth: pixel='d=d*(1.0+0.1*cos(t));', frame='t=t+0.1'
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