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Creating a Giant Robot Walking in a Live Action Scene: Part 3

Final product image
What You’ll Be Creating

1. Creating Leg Rigs

Step 1

Open 3ds Max.
Open the file which was saved in the last part of the tutorial. 

Open 3ds Max
Open 3ds Max

Step 2

Go to Create >
System
and click on Bones.

Create  System
Create > System

Step 3

Draw the bones for the
leg in the side viewport as shown in the following image.

Draw the bones
Draw the bones

Step 4

With the top bone
selected, go to Animation > IK Solver > HI Solver

Animation  IK Solver  HI Solver
Animation > IK Solver > HI Solver

Step 5

Click on the last bone
to create IK chain as shown in the following image.

IK chain
IK chain

Step 6

With entire rig and IK
chain selected, drag these inside the left leg.

IK chain
IK chain

2. Creating Attachment Constraint for Foot

Step 1

With the first nut and
bolt selected, go to Animation > Constraint >Attachment Constraint
and then click on the left foot of the robot.

Animation  Constraint Attachment Constraint
Animation > Constraint >Attachment Constraint 

Step 2

Click on Set Position
and try to set the position of the nut and bolt by dragging the mouse over the
left foot. Once you get the correct position, turn off the Align To Surface
option.

Align To Surface
Align To Surface

Step 3

A dialogue box will
appear for the confirmation of animation. Just click on Yes.

confirmation of animation
confirmation of animation

Step 4

With the second nut and
bolt selected, go to Animation > Constraint >Attachment Constraint
and then click on the left foot of the robot.

Animation  Constraint Attachment Constraint
Animation > Constraint >Attachment Constraint

Step 5

Click on Set Position
and try to set the position of the nut and bolt by dragging the mouse over the
left foot. Once you get the correct position, turn off the Align To Surface
option.

Set Position
Set Position

Step 6

A dialogue box will
appear for the confirmation of animation. Just click on Yes.

confirmation of animation
confirmation of animation

Step 7

With the third nut and
bolt selected, go to Animation > Constraint >Attachment Constraint
and then click on the left foot of the robot.

Animation  Constraint Attachment Constraint
Animation > Constraint >Attachment Constraint 

Step 8

Click on Set Position
and try to set the position of the nut and bolt by dragging the mouse over the
left foot. Once you get the correct position, turn off the Align To Surface
option.

Align To Surface option
Align To Surface option

Step 9

A dialogue box will
appear for the confirmation of animation. Just click on Yes.

confirmation of animation
confirmation of animation

3. Creating Attachment Constraints for Hands

Step 1

With the first nut and
bolt selected, go to Animation > Constraint >Attachment Constraint
and then click on the left hand of the robot.

Animation  Constraint Attachment Constraint
Animation > Constraint >Attachment Constraint

Step 2

Click on Set Position
and try to set the position of the nut and bolt by dragging the mouse over the
left hand. Once you get the correct position, turn off the Align To Surface
option.

Align To Surface
Align To Surface

Step 3

A dialogue box will
appear for the confirmation of animation. Just click on Yes.

confirmation of animation
confirmation of animation

Step 4

Following the same way,
create attachment constraints for the rest of the nut and bolts also.

create attachment constraints for the rest of the nut and bolts
create attachment constraints for the rest of the nut and bolts 

Step 4

Following
the same way, create the rig for the right leg and create attachment
constraints for the right hand and nuts and bolts as well.

create the rig for the right leg
create the rig for the right leg

4. Applying
Skin Modifier

Step 1

With
the left leg selected, go to Modifier list and select Skin modifier.

Modifier list
Modifier list

Step 2

Inside
the Skin modifier tab, click on Add button. It opens the Select
Bones
window. Select all three bones and click on Select.

Select Bones window
Select Bones window

Step 3

Now
you can see the three bones inside the list.

three bones inside the list
three bones inside the list

Step 4

Repeat
the same process for the right side’s leg.

Repeat the same process
Repeat the same process 

5. Creating Attachment Constraint for Ankle

Step 1

With the ankle mesh
selected, go to Animation > Constraint >Attachment Constraint and
then click on the hand of the robot.

Animation  Constraint Attachment Constraint
Animation > Constraint >Attachment Constraint

Step 2

Click on Set Position
and try to set the position of the nut and bolt by dragging the mouse over the
left hand. Once you get the correct position, turn off the Align To Surface
option.

Align To Surface
Align To Surface

Step 3

Follow the same process
for the right side’s ankle mesh also.

Follow the same process
Follow the same process

5. Creating Dummies

Step 1

Go to Create >
Helpers > Dummy
and create two dummies for both feet as shown in the
following image.

Create  Helpers  Dummy
Create > Helpers > Dummy

Step 2

With both IK chains
selected, link these with their respective dummies as shown in the following
image.

Link the dummies
Link the dummies

Step 3

Create three more
dummies for the head and both shoulders as shown in the following image.

Create three more dummies
Create three more dummies

Step 4

With both shoulders
dummies selected, link these to the head dummy as shown in the following image.

Link the shoulder dummies
Link the shoulder dummies

Step 5

Link the head of the
robot to the head dummy.

Link the head of the robot to the head dummy
Link the head of the robot to the head dummy

Step 6

The rigging is completed
now. You can check the rigging by moving the foot and head dummies. The robot
is now ready for animation.

The rigging is completed
The rigging is completed

Conclusion

Creating rigs and constraints is an essential part of animation as it makes the animation process easy. In the next part of the tutorial, I will show you how to create animation of the robot.