Welcome! []Intro to Computer Graphics • 2D imaging • Computer Graphics (usually 3D with a...

Welcome!

Intro to Computer Graphics

What is computer graphics?

Imaging

Any technology to create, preserve or duplicate images

Imaging (creation)

• 2D imaging

• Computer Graphics (usually 3D with a virtual camera involved)

• Visual Arts (Digital Photography, Sculpture, and Sketching)

• LIDAR Imagery (3D scanner for environments)

• Medical imaging

The study of algorithms and systems for generating images with

Computers.

The study of algorithms and systems for generating images with

Computers.

Almost every synthetic image that you can produce with a

computer is computer graphics.

Topics in Computer Graphics

• Imaging (2D)

• Modeling (dgp)

• Rendering

• Animation

• Interaction

• Simulation

• Digital Characters

• Virtual Reality

• Augmented Reality

• Capture

• Sketching

2D Imaging

Raster Images

Composed of

Individual pixels

Computer Graphics / 2D Imaging / Raster images

2D Imaging

Raster Images

Composed of

Individual pixels

Computer Graphics / 2D Imaging / Raster images

2D Imaging

Vector Images

Composed of Curves

Computer Graphics / 2D Imaging / Vector images

Modeling (3D surfaces)

CAD Models

Surfaces defined by

curves

Computer Graphics / Modeling / CAD models

Polygon Meshes

Surfaces defined by

Computer Graphics / Modeling / Polygon Meshes

Polygon Meshes

Surfaces defined by

Example

Modeling (3D volumes)

Voxels

The equivalent of

pixels in 3D

Computer Graphics / Modeling / Voxels

Voxels

The equivalent of

pixels in 3D

Computer Graphics / Modeling / Voxels

Tetrahedral meshes

Computer Graphics / Modeling / Tetrahedral meshes

Hexahedral meshes

Computer Graphics / Modeling / Hexahedral meshes

HexaLab.net: an online viewer for hexahedral meshes

Matteo Bracci, Marco Tarini, Nico Pietroni, Marco Livesu, Paolo Cignoni

Procedural Modeling

Objects created from a

set of rules

Computer Graphics / Modeling / Procedural Modeling

Procedural Modeling of Buildings

[Müller et al. 2006]

Procedural Modeling

Computer Graphics / Modeling / Procedural Modeling

Cities Skylines

Objects created from a

set of rules

Rendering

Computer Graphics / Rendering /

Online Rendering

(Real-time rendering)

http://madebyevan.com/webgl-water/

Rendering

Offline Rendering

(Pre-rendering)

Animation

Computer Graphics / Animation /

More in CPSC 426

Interaction

Computer Graphics / Interaction /

(Human Computer

Interaction)

Simulation

Computer Graphics / Simulation /

Physics simulation

(RealFlow example)

Simulation

http://david.li/fluid/

Digital Characters

Virtual Reality

Computer Graphics / VR /

Surface reconstruction

from VR drawings

Augmented Reality

Education

Capture

Computer Graphics / Capture /

LIDAR scanning

Sketching

Sketch cleanning

Applications of Computer Graphics

Movies

Computer-Aided Analysis

Geomatics

ML training

Education

Training

Museography

Medical imaging

Information visualization

Architecture

Therapy

Fabrication

SIGGRAPH

What you will learn

Computer Graphics Algorithms that usually NOT stay forever…

New Alternative Mathematical Tools

3D shapes

Transformations

Rendering algorithms

Shading models

Basic animation algorithms

Raytracing

How much math we will cover?

• Vectors

• Matrices

• Coordinate systems

• Transformations (linear, Affine)

• Forward kinematics

• Inverse kinematics

• Quaternions

• Rotors (A bit of Geometric Algebra)

• Intersections (A bit of Projective Geometric Algebra)

• Barycentric coordinates

• Bézier curves

• And more…

What you will not learn

• Hardware details

• OpenGl, three.js or DirectX tricks and hacks

• Software packages

• Artistic skills

• Deep theoretical proofs

• Machine Learning

What do you need to take this course?

Pre-requisites

CPSC 221 and one of MATH 200, MATH 217, MATH 226, MATH 253 and one of MATH 152, MATH 221, MATH 223.

Linear Algebra

Algorithms

Basic Data structures

Basic Geometry

Instructor

Enrique Rosales

Office hours:

Wednesday

4:30 – 5:30 pm

Teaching Assistant

Yibo JiaoTeaching Assistant

Tianxin Tao

Teaching Assistant

Jake Wong

Teaching Assistant

Mandy Wong

RequiredSoftware

• Geogebra

• 3ds Max

• Maxscript

• Blender

• Photoshop

• Illustrator

• Meshlab

• Javascript

• GLSL

• C++

• WebGL

• Three.js

SupportingSoftware

Communication

• Lectures on zoom TWF 3:00 to 4:00 pm (recorded)

• Labs on zoom

• Website: https://www.students.cs.ubc.ca/~cs-314/Vsep2020/

Lectures, assignments and other resources

• Piazza

• Canvas

• Textbooks (links on the website)

Grading

1 - Intro 5% (1 extra late day)

2 - Theory 1 4%

3 - Theory 2 4%

4 - Transformations 7% (4 bonus points)

5 - Shading 7% (4 bonus points)

6 - Theory 3 5%

7 - Raytracing 10% (8 bonus points)

8 - Theory 4 7% (4 bonus points)

midterm 1 12% (two-stage-exam TBD)

midterm 2 12% (two-stage-exam TBD)

Participation 2%

final exam 25%

3 late days for use during the term.

Expected outcome

A lot of fun learning!

SIGGRAPH Faculty Submitted Student Work

Next lecture

Topic:

Math review

We recommend:

• Check Piazza

• Check the Intro Assignment

• Check a couple of WebGl tutorials

• Play with Three.js• Optional reading: Chapters 4 and 5 from 3D math primer for graphics and game development

Questions?

Enrique Rosales

Thanks

Enrique Rosales

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