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Fancy Bullets
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## Introduction

• This lesson will take you through using the V-Ray Toon shader in a Maya scene
• This lesson topic is approximately 30 minutes in length
• Lesson covers all 3 Learning Cycles for the Lesson Topic – Lecture, Demonstration, and Activity

Contents

## AnchoroverviewoverviewOverview

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Goal - We will apply cel shading to a robot model

Objective – To develop the look of cell shading for a 3D model

Outcome – You will be able to create your own cel shading for characters as well as props and other objects

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## AnchorlecturelectureLecture

### 1. Terminology

Here’s some terms to be aware of when thinking about toon shading.

• A type of shading originally developed for cartoons, animated films, comics, etc.
• Characterized by shading with solid colors and dark outlines
• Surf. Luminance
• A standard Maya utility that can set colors based on surface luminance

a) Approach

• Areas of solid color across the surface
• Create effect with standard Maya tools
• Outline
• Dark edges of objects
• Create with VRayToon node

### 2. VRayToon

a) Solid color shading with the Surface Luminance utility

• Pipe the Surf. Luminance output into a ramp to vary hue based on luminance
• Pipe the ramp output into a standard material

b) VRayToon node
• Draws the outline only, does not affect surface material
• Technically, an atmospheric effect
• Adjust parameters and assign to specific objects as desired
• To use different settings for different objects, create more VRayToon nodes and assign them to those objects

c) Line Width
• Sets thickness of outline

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d) Line Color
• Sets color of outline

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e) Normal Threshold
• Determines the angle at which lines will be drawn within an object
• 0.0 means only  angles of 90+ degrees generate internal lines
• 1.0 fills all curved angles

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## Conclusion

• Cel shading is a combination of solid color shading and outlines
• VRayToon node draws outlines on geometry

## AnchordemonstrationdemonstrationDemonstration

Time to see it work!

Watch while I demonstrate how to setup a cel shader for this toy robot.

## AnchoractivityactivityActivity

Use the provided  scene file to develop your own look for the robot.
We have also provided a final scene for your reference.

Dialing in the right values

• Line Color – black
• Line Width – 3
• Normal Threshold – 0.98