C4D Tutorial - Understanding the Formula Field

Опубликовано: 19 Февраль 2026
на канале: Pappy's Tutorials

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A field is a 3D pattern of values and direction vectors that are infinite in space and can control fall-offs, be used as forces, or can be used to create geometry with a volume builder and mesher.

A formula field is like any other field but it allows you to define the field pattern with a formula.

Index:
1:17 The default formula
2:29 Understanding the Variables
21:40 Using Sin and Cos trig functions
33:44 Field Force
40:02 Mathematical Surfaces

Here are some of the formulas I use in this tutorial:
17:20
Voxel IDs over Time
(id＜(t*1000*f))
set f to 1.861, Voxel size to 10

27:30
sin x*y
(0.5+sin((px*py*pz)/(f*10)))
set f to 1, Voxel size to 3
set Formula field x position to -102.248 cm

32:26
cos x*y*z
(0.5+cos((px*py*pz)/(f*10)))
set f to 70, Voxel size to 1
set Formula field x,y,z position to 0,0,0 cm

40:22
Spire
(py＜(40000/(sqr(px)+sqr(pz))-90))

42:05
Monkey Saddle
(py＜((pow(px/25;3)-3*(px/25)*sqr(pz/25))))

43:14
Monkey Saddle (10 cm thick)
((py＜((pow(px/25;3)-3*(px/25)*sqr(pz/25))+5)) and (py＞((pow(px/25;3)-3*(px/25)*sqr(pz/25))-5)))