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Advanced Game Art and Production

Week 5 (Happy Halloween!)

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Course Schedule

Week 01

Discussion

Introduction

Rendering Basics

(Shaders)

Week 02

Discussion

Rendering Basics

(Lighting, Image Effects)

Week 03

Discussion

Procedural Meshes and Manipulation

Due

Assignment 1

Week 04

Discussion

Particle Effects

Week 05

Discussion

Advanced Shaders, Mesh Manipulation

Due

Assignment 2

Week 06

Discussion

Advanced Lighting

Due

Assignment 3

Week 07

Discussion

Advanced Procedurals

Due

Project Deliverable 1

Week 08

Discussion

??

Week 09

Discussion

??

Due

Project Deliverable 2

Week 10

Discussion

??

Due

Project Deliverable 3

FINALS Week

Discussion

Project Presentations

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DISCUSSION

Advanced Light, Shader, and Image Effect Techniques

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Preview

Let’s Get Spooky!
Show Your Assignments

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Let’s Get Spooky: Class Exercise

Lightmaps are useful, but realtime lights have uses as well?

What are some uses of real-time lights?

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Uses of Real-time Lights

We can use scripts to manipulate values

Real-Time Light

Color

Intensity

Cookie (image)

Hard/Soft Shadows

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Let’s Get Spooky: Scripted Lights

After some time of calm, lots of quick flashes followed by more calm.

A continuous glow that has a flickering intensity. Maybe some color change.

LIGHTNING

FIRE

Think about the problem. Scope out what is needed.

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Let’s Get Spooky: Lightning

Wait a time interval

Light color is Color * 0f to make it dark

Turn on Lightning
Rapid on/off for a second

Multiply color by some value

Turn lighting off
Reset time interval

(flicker too fast for GIF)

using UnityEngine;

using System.Collections;

public class LightningController : MonoBehaviour {

Color lightColor;

public float nextLightning = 0f;

bool isLightning = false;

public float lightningWave = 0f;

// Use this for initialization

void Start () {

lightColor = GetComponent<Light>().color;

}

// Update is called once per frame

void Update () {

if(!isLightning){

nextLightning-=Time.deltaTime;

if(nextLightning<=0f){

isLightning = true;

nextLightning = Random.Range(4f, 6f);

}

else{

lightningWave+=Time.deltaTime;

light.color = lightColor * Mathf.Cos (lightningWave * 100f);

if(lightningWave>(Mathf.PI/10f)) {

lightningWave = 0f;

isLightning = false;

light.color = lightColor * 0f;

}

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Let’s Get Spooky: Flickering Flame

Continuously modify color to become darker and lighter

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Let’s Get Spooky: Blood!

Blood spews from some center point, goes in some direction, has gravity

Blood hits surfaces and leaves behind a stain that goes away over time

INITIAL

SPLATTER

Think about the problem. Scope out what is needed.

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Let’s Get Spooky: Blood!

Emitters and Sub-Emitters can collide

Physics for collisions: Bounce
Birth, Collision, and Death sub-emitters

We want to sub-emit splatters upon collision

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Let’s Get Spooky: Blood!

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Let’s Get Spooky: RED

Let’s look at a custom image effect that we can make ourselves!
Add a RED overlay to the camera that we can adjust to add spookiness

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Preview

Let’s Get Spooky!
Show Your Assignments

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THE END

Assignment 3 Due Next Week