When doing the tracing experiment yesterday, the line renderers were surprisingly stiff and limited, especially in the case of multiple line segments. I looked into spawning a circular sprite whenever the targeted touch moved, which worked for slow movements. However, when the finger zipped fast enough, there was a noticeable space between the previous and current touch points. This would not do for a free form line.
What to do? By taking the distance between the touches and a direction, I could fill it in with a series of dots per frame. Suddenly a grouping of dots becomes a free flowing line.
Afterwards, I looked into a tracing guide for certain shapes, and put in a placeholder tracker that would turn red upon tracing. Thus, something like the Healing Touch from Trauma Center is now an iPhone reality:
What next? Well, in order to make interesting and more exact shapes, one could use a tool to actively make these shapes for tracing. I'll be working on an application that can take in clicks as an input and write them to a file for use in the program.
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