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User Manual
BlackStar SPLURF for Cinema 4D
1. Say you have these 3 Splines S1, S2 and S3
and want them to generate a spline surface.
This cannot be done with the standard SPLURF
Object as S3 intersects with both S1 and S2
each at two different positions (marked blue).
S1
2. You can easily see that in this case no 3Spline surface can be created. Instead you
would want to create a 4-Spline surface
causing you to make an instance of S3 at
the same position (indicated red):
S1
S2
S2
S3
S3
3. But this does not quite solve the problem,
now there are four intersections of S3 (with
S1 and S2) and as well four intersections of
I3 (with S1 and S2). SPLURF cannot guess
which ones to choose so the desired surface
still is undefined.
S1
S2
S3
and instance I3
4. Using "Limit intersections" the intersection
ranges are specifiable with handles. Now
you can define the first region to take only
the intersections of S3 itself into account
(blue) and as well to limit the intersection of
the second range to the instance (red).
?
and instance I3
S3
instance I3
[Fig. 4: Realizing a Spline Surface with multiple intersection by the use of "Limit
intersection"]
•
The smaller the limited intersection regions are the more accurate
becomes the generated surface. This is a huge profit especially when
using very long splines.
Note:
Uncolored splines are given different default colors automatically for better
distinguishing their handles.
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