gltf-transform

Name: gltf-transform
Author: rawwerks

98stars11forks

How to install gltf-transform?

rawwerks/vibecad/gltf-transform

$npx -y skills add rawwerks/VibeCAD --skill gltf-transform

Installs into the current project.

Summary

Optimize and post-process GLB/glTF 3D models. Use when compressing models for web delivery, reducing file size, simplifying geometry, inspecting model stats, merging models, or converting textures. Triggers on: optimize GLB, compress model, reduce file size, simplify mesh, draco

Files · 1

View on GitHub

SKILL.md

1	# glTF Transform
2
3	Post-process GLB/glTF files: optimize, compress, inspect, and transform 3D models.
4
5	- CLI docs: https://gltf-transform.dev/cli
6	- GitHub: https://github.com/donmccurdy/glTF-Transform
7	- npm: `@gltf-transform/cli`
8
9	## Zero-Setup with bunx
10
11	No installation required. Run any command with:
12
13	```bash
14	bunx @gltf-transform/cli <command> [args]
15	```
16
17	First run downloads the tool, subsequent runs are instant.
18
19	## Quick Start
20
21	```bash
22	# Inspect model stats first
23	bunx @gltf-transform/cli inspect model.glb
24
25	# One-command optimization (good defaults)
26	bunx @gltf-transform/cli optimize input.glb output.glb --compress draco --texture-compress webp
27	```
28
29	## CAD Workflow Integration
30
31	Typical pipeline after generating models with build123d:
32
33	```
34	create geometry → export GLB → optimize → verify visually
35	```
36
37	1. build123d exports high-quality CAD geometry
38	2. gltf-transform compresses for web delivery
39	3. render-glb verifies the result
40
41	## Compression Methods
42
43	\| Method \| Best For \| Trade-offs \|
44	\|--------\|----------\|------------\|
45	\| Draco \| Web delivery, Three.js \| Smallest geometry, requires decoder \|
46	\| Meshopt \| Universal, animations \| Good compression + animation support \|
47	\| Quantize \| Compatibility \| No decoder needed, moderate compression \|
48
49	```bash
50	# Draco - best geometry compression
51	bunx @gltf-transform/cli draco input.glb output.glb
52
53	# Meshopt - geometry + animation compression
54	bunx @gltf-transform/cli meshopt input.glb output.glb
55
56	# Quantize only - no external decoder needed
57	bunx @gltf-transform/cli quantize input.glb output.glb
58	```
59
60	## Texture Compression
61
62	```bash
63	# WebP - good compression, wide browser support
64	bunx @gltf-transform/cli webp input.glb output.glb
65
66	# Resize large textures
67	bunx @gltf-transform/cli resize input.glb output.glb --width 1024 --height 1024
68	```
69
70	## Common Operations
71
72	### Inspect Model Stats
73	```bash
74	bunx @gltf-transform/cli inspect model.glb
75	```
76
77	Shows vertex count, file size breakdown, texture sizes - helps decide what to optimize.
78
79	### Simplify Geometry
80	```bash
81	# Weld duplicate vertices first
82	bunx @gltf-transform/cli weld input.glb temp.glb
83
84	# Then simplify
85	bunx @gltf-transform/cli simplify temp.glb output.glb --ratio 0.5
86	```
87
88	Useful for CAD models which often have more detail than needed for web viewing.
89
90	### Merge Multiple Models
91	```bash
92	bunx @gltf-transform/cli merge part1.glb part2.glb assembly.glb
93	```
94
95	### Aggressive Optimization
96	```bash
97	bunx @gltf-transform/cli optimize input.glb output.glb \
98	--compress draco \
99	--texture-compress webp \
100	--simplify true \
101	--simplify-ratio 0.5
102	```
103
104	## When to Use
105
106	\| Scenario \| Commands \|
107	\|----------\|----------\|
108	\| Web delivery \| `optimize --compress draco --texture-compress webp` \|
109	\| Check model stats \| `inspect` \|
110	\| High-poly CAD model \| `weld` then `simplify --ratio 0.5` \|
111	\| Combine parts \| `merge` \|
112	\| Debug issues \| `inspect` then targeted fixes \|

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gltf-transform

98stars11forks

View on GitHub

How to install gltf-transform?

rawwerks/vibecad/gltf-transform

$npx -y skills add rawwerks/VibeCAD --skill gltf-transform

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# glTF Transform
2
3	Post-process GLB/glTF files: optimize, compress, inspect, and transform 3D models.
4
5	- CLI docs: https://gltf-transform.dev/cli
6	- GitHub: https://github.com/donmccurdy/glTF-Transform
7	- npm: `@gltf-transform/cli`
8
9	## Zero-Setup with bunx
10
11	No installation required. Run any command with:
12
13	```bash
14	bunx @gltf-transform/cli <command> [args]
15	```
16
17	First run downloads the tool, subsequent runs are instant.
18
19	## Quick Start
20
21	```bash
22	# Inspect model stats first
23	bunx @gltf-transform/cli inspect model.glb
24
25	# One-command optimization (good defaults)
26	bunx @gltf-transform/cli optimize input.glb output.glb --compress draco --texture-compress webp
27	```
28
29	## CAD Workflow Integration
30
31	Typical pipeline after generating models with build123d:
32
33	```
34	create geometry → export GLB → optimize → verify visually
35	```
36
37	1. build123d exports high-quality CAD geometry
38	2. gltf-transform compresses for web delivery
39	3. render-glb verifies the result
40
41	## Compression Methods
42
43	\| Method \| Best For \| Trade-offs \|
44	\|--------\|----------\|------------\|
45	\| Draco \| Web delivery, Three.js \| Smallest geometry, requires decoder \|
46	\| Meshopt \| Universal, animations \| Good compression + animation support \|
47	\| Quantize \| Compatibility \| No decoder needed, moderate compression \|
48
49	```bash
50	# Draco - best geometry compression
51	bunx @gltf-transform/cli draco input.glb output.glb
52
53	# Meshopt - geometry + animation compression
54	bunx @gltf-transform/cli meshopt input.glb output.glb
55
56	# Quantize only - no external decoder needed
57	bunx @gltf-transform/cli quantize input.glb output.glb
58	```
59
60	## Texture Compression
61
62	```bash
63	# WebP - good compression, wide browser support
64	bunx @gltf-transform/cli webp input.glb output.glb
65
66	# Resize large textures
67	bunx @gltf-transform/cli resize input.glb output.glb --width 1024 --height 1024
68	```
69
70	## Common Operations
71
72	### Inspect Model Stats
73	```bash
74	bunx @gltf-transform/cli inspect model.glb
75	```
76
77	Shows vertex count, file size breakdown, texture sizes - helps decide what to optimize.
78
79	### Simplify Geometry
80	```bash
81	# Weld duplicate vertices first
82	bunx @gltf-transform/cli weld input.glb temp.glb
83
84	# Then simplify
85	bunx @gltf-transform/cli simplify temp.glb output.glb --ratio 0.5
86	```
87
88	Useful for CAD models which often have more detail than needed for web viewing.
89
90	### Merge Multiple Models
91	```bash
92	bunx @gltf-transform/cli merge part1.glb part2.glb assembly.glb
93	```
94
95	### Aggressive Optimization
96	```bash
97	bunx @gltf-transform/cli optimize input.glb output.glb \
98	--compress draco \
99	--texture-compress webp \
100	--simplify true \
101	--simplify-ratio 0.5
102	```
103
104	## When to Use
105
106	\| Scenario \| Commands \|
107	\|----------\|----------\|
108	\| Web delivery \| `optimize --compress draco --texture-compress webp` \|
109	\| Check model stats \| `inspect` \|
110	\| High-poly CAD model \| `weld` then `simplify --ratio 0.5` \|
111	\| Combine parts \| `merge` \|
112	\| Debug issues \| `inspect` then targeted fixes \|

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6 picks

Type