1
00:00:00,333 –> 00:00:03,567
Let’s examine the joint SOP.
2
00:00:03,567 –> 00:00:10,067
Before we begin, I’ve included
an important note in this
example network.
3
00:00:10,067 –> 00:00:23,033
By pressing the “viewer active”
button, and hovering over the
SOP window, then pressing the
“H” key, you can center the view
of your geometry.
4
00:00:23,033 –> 00:00:29,533
This is a very important
technique in the Touch Designer
SOP workflow.
5
00:00:29,533 –> 00:00:38,800
We start with a circle SOP and
set its orientation to the ZX
plane.
6
00:00:38,800 –> 00:00:42,400
We then wire the circle to a
transform SOP.
7
00:00:42,400 –> 00:00:48,133
We use the transfrom SOP to
create a positional offset.
8
00:00:48,133 –> 00:00:49,900
—
9
00:00:49,900 –> 00:00:57,133
I’m animating some parameters
here, so to begin with I’ll turn
those off.
10
00:00:57,133 –> 00:00:58,367
—
11
00:00:58,367 –> 00:01:05,933
Let’s move the SOP 2 units in
the Y up direction.
12
00:01:05,933 –> 00:01:06,800
—
13
00:01:06,800 –> 00:01:16,033
I’ll reset the rotation
animation of the SOP, and set
its rotation to 0.
14
00:01:16,033 –> 00:01:17,700
—
15
00:01:17,700 –> 00:01:31,233
Next, we’ll use a merge SOP to
combine the original circle and
the offset circle into a single
piece of geometry.
16
00:01:31,233 –> 00:01:33,033
—
17
00:01:33,033 –> 00:01:40,800
This is the basic type of SOP
setup the joint SOP requires to
operate correctly.
18
00:01:40,800 –> 00:01:41,900
—
19
00:01:41,900 –> 00:01:50,133
The joint SOP will create a
series of circles between the
pair of input circles.
20
00:01:50,133 –> 00:01:55,333
The parameters of the joint SOP
are fairly straightforward.
21
00:01:55,333 –> 00:02:00,133
We can increase or decrease the
number of divisions.
22
00:02:00,133 –> 00:02:01,767
—
23
00:02:01,767 –> 00:02:09,033
We can also offset the
relationship between the newly
formed circles and the
originals.
24
00:02:09,033 –> 00:02:14,667
—
25
00:02:14,667 –> 00:02:20,533
I’ve used two noise CHOPs to
animate the offset circle.
26
00:02:20,533 –> 00:02:26,000
One to adjust the position, and
one to adjust the rotation.
27
00:02:26,000 –> 00:02:27,067
—
28
00:02:27,067 –> 00:02:31,767
I’ve used simple Python
expressions to animate the
noise.
29
00:02:31,767 –> 00:02:41,667
As Touch Designer advances frame
by frame, the channels generated
by the noise CHOP will move
forward in time as well.
30
00:02:41,667 –> 00:02:50,267
By moving the X transform
forward, we sample a constantly
updated range of the noise.
31
00:02:50,267 –> 00:02:53,700
A good analogy is this:
32
00:02:53,700 –> 00:03:00,467
Imagine that you are looking at
a mountain range from the side
window of your car as you drive
forward.
33
00:03:00,467 –> 00:03:10,933
The height of a single point
along the profile of the peaks
and valleys of the range is the
value we apply to the offset
circle.
34
00:03:10,933 –> 00:03:12,600
—
35
00:03:12,600 –> 00:03:20,100
This animation is reflected in
the generation of the geometry
created by the joint SOP.
36
00:03:20,100 –> 00:03:21,800
—
37
00:03:21,800 –> 00:03:24,067
Here’s an important note.
38
00:03:24,067 –> 00:03:34,767
The dynamic creation of geometry
can be computationally heavy,
and it can and affect the
performance of Touch Designer.
39
00:03:34,767 –> 00:03:43,633
The more circle divisions I
create with the joint SOP, the
more Touch Designer with slow
down.
40
00:03:43,633 –> 00:03:45,633
—
