Explore Transfer Functions

Touchpad Screen
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Select the transfer function:




How it works:

The gray area is your virtual touchpad. It records movements when you hold the left mouse button down.
The black area next to it represents the screen.
There are different transfer functions that translate the movement on the "touchpad" to output on the "screen".
You can alter the functions transfer1, transfer2 and transfer3 to explore the impact of different transfer functions.
Download the html file and edit it.

Debug output: