Level 6 - Body
>
Stage 5 - Arms XY & Physics

Stage 5 - Arms XY & Physics

STAGE

🧭 Lesson Objective

1️⃣ Rig the Arms
2️⃣ Add Arm Physics

🎯 Lesson Quests

🚩 Quest 1: Create Arm Parameters
🚩 Quest 2: Deform the Arm
🚩 Quest 3: Add Physics Group

🚩 Quest 1: Create Arm Parameters

Let’s start by creating the Blend Shape parameters that will drive our arm and sleeve movement.

🆕 Parameters (Per Arm)

  • Minimum: -1
  • Default: 0
  • Maximum: 1

Make sure you create separate parameters for the Left and Right arms. They’ll need separate physics groups later.

🚩 Quest 2: Deform the Arm

We'll use deformers to create motion in the arms. Start with the left side and reflect it later to get perfect symmetry.

🦾 Required Deformers

  • Left Arm X
    • Left Arm Y PH

We’ll begin with Body X Augment:

🔁 Left Arm X – Body X Augment

Adjust the shoulder and arm to follow the body X

Also add Body Z Augment to this deformer for extra rotation.

⚠️ Make sure the shoulder still connects properly to the torso during these motions. If needed, glue can be used, but I wont use it here.

🌀 Left Arm Y PH – Finger & Shoulder Movement

Now we’ll create motion using Y1 to Y5 parameters.

Arm L Y1

Make sure that your shoulder is deformed to connect to your Torso.

Arm L Y2

These deformations are at the elbows! Don't worry if they look very drastic, you'll be able to turn them down with physics!

Arm L Y3

The Y4 and Y5 parameters will be used to make the fingers move!

We must add path deform points to each finger art mesh.

Arm L Y4

We'll bend all of the fingers inward and outward.

Arm L Y5

And Y5, will be for just our finger tips!

👕 Adjust Shoulder Clothing & Sleeve

You’ll need to deform the sleeve parts to follow the arm, and add a bit of bounce with physics.

I separated the front and back parts of the sleeves.

Left Sleeve Front X - Body X Augment

Left Sleeve Back - Body X Augment

Sleeve Y Adjusts

These deformers just make sure our sleeve is moving with our arm in the Y1 Parameter!

Sleeve Physics

Blend Shapes, Minimum: -1, Default: 0, Maximum: 1

Example X1:

Example X2

🚩 Quest 3: Add Physics Group

Let’s add the physics!

Input

Pendulum

Output

For the Right Arm physics group, the only important thing to do is Reflect the Body X to make sure the arms flow nicely in the X axis!

Physics for your sleeves are totally up to you!

Make sure to Copy, Paste, and Reflect your entire end at the end too!

📦 Study File

Level 6 – Stage 5 | Study File

🏁 End of Level 6 – Stage 5 | Arms XY & Physics

Level 6 - Body
>
Stage 5 - Arms XY & Physics

Stage 5 - Arms XY & Physics

🧭 Lesson Objective

1️⃣ Rig the Arms
2️⃣ Add Arm Physics

🎯 Lesson Quests

🚩 Quest 1: Create Arm Parameters
🚩 Quest 2: Deform the Arm
🚩 Quest 3: Add Physics Group

🚩 Quest 1: Create Arm Parameters

Let’s start by creating the Blend Shape parameters that will drive our arm and sleeve movement.

🆕 Parameters (Per Arm)

  • Minimum: -1
  • Default: 0
  • Maximum: 1

Make sure you create separate parameters for the Left and Right arms. They’ll need separate physics groups later.

🚩 Quest 2: Deform the Arm

We'll use deformers to create motion in the arms. Start with the left side and reflect it later to get perfect symmetry.

🦾 Required Deformers

  • Left Arm X
    • Left Arm Y PH

We’ll begin with Body X Augment:

🔁 Left Arm X – Body X Augment

Adjust the shoulder and arm to follow the body X

Also add Body Z Augment to this deformer for extra rotation.

⚠️ Make sure the shoulder still connects properly to the torso during these motions. If needed, glue can be used, but I wont use it here.

🌀 Left Arm Y PH – Finger & Shoulder Movement

Now we’ll create motion using Y1 to Y5 parameters.

Arm L Y1

Make sure that your shoulder is deformed to connect to your Torso.

Arm L Y2

These deformations are at the elbows! Don't worry if they look very drastic, you'll be able to turn them down with physics!

Arm L Y3

The Y4 and Y5 parameters will be used to make the fingers move!

We must add path deform points to each finger art mesh.

Arm L Y4

We'll bend all of the fingers inward and outward.

Arm L Y5

And Y5, will be for just our finger tips!

👕 Adjust Shoulder Clothing & Sleeve

You’ll need to deform the sleeve parts to follow the arm, and add a bit of bounce with physics.

I separated the front and back parts of the sleeves.

Left Sleeve Front X - Body X Augment

Left Sleeve Back - Body X Augment

Sleeve Y Adjusts

These deformers just make sure our sleeve is moving with our arm in the Y1 Parameter!

Sleeve Physics

Blend Shapes, Minimum: -1, Default: 0, Maximum: 1

Example X1:

Example X2

🚩 Quest 3: Add Physics Group

Let’s add the physics!

Input

Pendulum

Output

For the Right Arm physics group, the only important thing to do is Reflect the Body X to make sure the arms flow nicely in the X axis!

Physics for your sleeves are totally up to you!

Make sure to Copy, Paste, and Reflect your entire end at the end too!

📦 Study File

Level 6 – Stage 5 | Study File

🏁 End of Level 6 – Stage 5 | Arms XY & Physics

Level 6 - Body
>
Stage 5 - Arms XY & Physics

Stage 5 - Arms XY & Physics

STAGE
Learn how to rig the arms
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