JANUARY 15, 2003
Inside the Studio Artist Paint Synthesizer, Part 2
More about Time Particles
by David Nagel
Page 5 of 6

Angle modifiers
So there are all of your Path Angle options in action. But what about modifying the Path Angle? Why, for example, would you want a "Fixed" path always to head off the the right? What if you want it to go up diagonally to the left? Or what if you want the angle of the stroke to vary and be controlled over time? That's what our Path Angle modifiers are for, known individually as Angle Mult, Angle Offset, Angle Skew and Angle Inc.[an error occurred while processing this directive]We'll begin with Angle Offset. This simply determines the actual direction of the path in degrees. The default 0 means that a "Fixed" path angle moves horizontally to the right from its starting point. A value of 90 means that it moves straight down. A value of 180 ... well, you get the idea. You can also keyframe the Angle Offset to make your path's direction change over time, as in the following, which takes a "Fixed" Path Angle and moves from 0 to 360 degrees over the course of 30 frames (using the "Curved" Path Type).


Keyframed Angle Offset from 0 to 360. (Click Play to watch.)


Keyframed Angle Offset from 0 to 180 and back. (Click Play to watch.)

Incidentally, I used the "Curved" Path Type on the examples above because a "Line" Path Type only seems to be affected by Angle Offset when it reaches the canvas boundaries.



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