Overview

This project revolved around simulating cloth. How to create a realistic cloth with stretch and pull, and one that collides with the world and itself.

Part 1

No Shear

Only Shear

All

Part 2

• With a low ks, the clothbounces and stretches a lot more. With a high ks, the cloth doesn’t bend much, and acts more like a plane.
• With a high density, parts of the cloth closer to the pinned points fall quickly and then bounce up causing a ripple. When the density is low the cloth acts similarly to a low ks, which is not bending much.
• A low damping causes the cloth to swing back and forth a lot more. A high damping causes it to appear almost in slow motion, as it slowly falls without retaining inertia.

A low damping causes the cloth to bounce back.

Low density and high ks causes the cloth to look close to a square.

High density and low ks causes the top to sag more

Pinned4

Part 3

Ks = 5000

Ks = 500

Ks = 50000

The difference between these results can be best described as the stiffness of the cloth. A higher ks causes the cloth to reach farther outward, while the lower ks can better surround the sphere more closely and thus falls lower.

So sleepy

Part 4

Early collision

More folding

All better

I will be plane

A higher ks or lower density causes the cloth to fold outwards more, while a lower ks or higher density collapses more vertically until it is crushed into the floor.

Part 5

• A shader program is what changes how a scene is rendered. Vertex shaders will transform the vertex’s positions while a fragment shader determines how everything is colored.
• Blinn-Phong shading works by adding three different light values. Ambient lighting, diffuse lighting, and specular lighting.

All                                        Ambient lighting

Diffuse Lighting                        Specular Lighting

Texture mapping

Bump map

16 x 16                                128 x 128

Mirror