Draft Post 🚧

Spot the Cow 🐮

Experimenting with Three.js

20 August 2026

cowsphere

drag to rotate · scroll to zoom

1
curl -sL "https://www.cs.cmu.edu/~kmcrane/Projects/ModelRepository/spot.zip" -o spot.zip
2

3
unzip -o spot.zip
4

5
cd ./spot
6

7
{ echo "mtllib spot.mtl"; echo "usemtl spot"; cat spot_triangulated.obj; } > spot.obj
8

9
npx --yes obj2gltf -i spot.obj -o spot.glb --binary

spot.mtl

1
newmtl spot
2
Ka 1.000 1.000 1.000
3
Kd 1.000 1.000 1.000
4
Ks 0.000 0.000 0.000
5
d 1.0
6
illum 2
7
map_Kd spot_texture.png