threejs-exposure-color-grading

Name: threejs-exposure-color-grading
Author: scottstts

377stars47forks

How to install threejs-exposure-color-grading?

scottstts/threejs-awesome-graphics-agent-skills/threejs-exposure-color-grading

$npx -y skills add scottstts/Threejs-Awesome-Graphics-Agent-Skills --skill threejs-exposure-color-grading

Installs into the current project.

Summary

Build a measured exposure and grading path in Three.js. Use for a 64x36 encoded luminance meter, asynchronous readback, weighted log-average exposure, asymmetric adaptation, single tone-map ownership, and a generated 32-cube post-tone-map LUT.

Files · 1

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SKILL.md

1	# Exposure and Color Grading
2
3	Treat exposure, tone mapping, grading, and output conversion as distinct stages. Tune them from measured HDR signal, not by stacking compensating color operations.
4
5	## Order
6
7	```text
8	HDR scene
9	→ luminance meter
10	→ adapted exposure
11	→ tone map
12	→ creative grade / 3D LUT
13	→ final output conversion
14	```
15
16	Read [references/scene-referred-color-pipeline.md](references/scene-referred-color-pipeline.md)
17	for the exact 64x36 meter, encoded readback, adaptation constants, 32-cube LUT,
18	and signal-ownership ambiguities.
19
20	## Failure conditions
21
22	- tone mapping occurs in both materials and post;
23	- exposure is used to repair physically inconsistent light ratios;
24	- meter weighting and scene framing are not inspected;
25	- adaptation speed is the same toward light and dark;
26	- LUT input/output spaces are undocumented;
27	- sRGB encoding happens twice;
28	- a display-domain LUT is moved before tone mapping without being rebuilt.
29
30	## Routing boundary
31
32	Use `$threejs-bloom` for HDR glow contribution and
33	`$threejs-image-pipeline` when this color path must share ownership with AO,
34	atmosphere, or effect-local render targets.

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threejs-exposure-color-grading

377stars47forks

View on GitHub

How to install threejs-exposure-color-grading?

scottstts/threejs-awesome-graphics-agent-skills/threejs-exposure-color-grading

$npx -y skills add scottstts/Threejs-Awesome-Graphics-Agent-Skills --skill threejs-exposure-color-grading

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# Exposure and Color Grading
2
3	Treat exposure, tone mapping, grading, and output conversion as distinct stages. Tune them from measured HDR signal, not by stacking compensating color operations.
4
5	## Order
6
7	```text
8	HDR scene
9	→ luminance meter
10	→ adapted exposure
11	→ tone map
12	→ creative grade / 3D LUT
13	→ final output conversion
14	```
15
16	Read [references/scene-referred-color-pipeline.md](references/scene-referred-color-pipeline.md)
17	for the exact 64x36 meter, encoded readback, adaptation constants, 32-cube LUT,
18	and signal-ownership ambiguities.
19
20	## Failure conditions
21
22	- tone mapping occurs in both materials and post;
23	- exposure is used to repair physically inconsistent light ratios;
24	- meter weighting and scene framing are not inspected;
25	- adaptation speed is the same toward light and dark;
26	- LUT input/output spaces are undocumented;
27	- sRGB encoding happens twice;
28	- a display-domain LUT is moved before tone mapping without being rebuilt.
29
30	## Routing boundary
31
32	Use `$threejs-bloom` for HDR glow contribution and
33	`$threejs-image-pipeline` when this color path must share ownership with AO,
34	atmosphere, or effect-local render targets.

People who liked this also viewed

6 picks

Type