In order to build my intuition in building models using implicit surfaces, I’ve rendered animations of a number of different models, using different variables each time.
This first animation is varying the isolevel from 0 to 1. The line segments are 10 units long, and use the “Soft Objects” function described here, with a=1, b=3.
For the second animation, I add a “Pull Cone”, with strength=2.5, varying the variance from 0 to 1. The isolevel is .3, and the field function is the same as above.
Next, I vary the strength of the pull cone instead of the variance. The variance is .3, and the strength is .8 to 10.