threejs-atmosphere-aerial-perspective

Name: threejs-atmosphere-aerial-perspective
Author: scottstts

377stars47forks

How to install threejs-atmosphere-aerial-perspective?

scottstts/threejs-awesome-graphics-agent-skills/threejs-atmosphere-aerial-perspective

$npx -y skills add scottstts/Threejs-Awesome-Graphics-Agent-Skills --skill threejs-atmosphere-aerial-perspective

Installs into the current project.

Summary

Implement physically motivated sky and aerial-perspective systems in Three.js. Use for planetary atmospheres, ground-to-space transitions, Rayleigh/Mie scattering, precomputed LUTs, depth-based transmittance and inscattering, sun/moon discs, and atmosphere-aware lighting.

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SKILL.md

1	# Atmosphere and Aerial Perspective
2
3	Treat sky rendering and aerial perspective as two views of the same scattering model. They must share radii, density profiles, coefficients, sun direction, exposure scale, and coordinate transforms.
4
5	## Choose the implementation tier
6
7	- Small scene with no orbital camera: analytic height/distance approximation.
8	- Planetary ground-to-space camera: ray integration or precomputed LUTs.
9	- Large geospatial world: LUTs plus world-to-planet transform, altitude correction, and depth-aware aerial perspective.
10
11	Read [references/atmosphere-system-contract.md](references/atmosphere-system-contract.md)
12	before implementation. It separates the LUT/ellipsoid architecture from
13	dynamic integration and the shell/post handoff.
14
15	Read the [LUT sky and aerial-perspective entry](examples/lut-aerial-perspective/atmosphere-effect.js)
16	and its `source/` modules for the SkyMaterial, SkyLightProbe,
17	SunDirectionalLight, AerialPerspectiveEffect, precomputed-texture loader,
18	sun/moon direction, lens flare, tone mapping, and dithering path used by the
19	LUT example.
20
21	## Required outputs
22
23	- sky radiance;
24	- sun transmittance/color;
25	- segment transmittance from camera to visible surface;
26	- segment inscattering;
27	- optional sky irradiance for materials;
28	- explicit scale conversion between world units and atmosphere units.
29
30	## Failure conditions
31
32	- sky and terrain haze use different sun directions or coefficients;
33	- the atmosphere is a uniformly transparent sphere;
34	- camera altitude is measured in a local flat frame during orbital motion;
35	- scene depth is treated as linear when it is not;
36	- exposure is used to hide incorrect radiance scale;
37	- atmosphere fades abruptly at shell entry.
38
39	## Routing boundary
40
41	This skill owns molecular/aerosol sky scattering and surface-segment aerial
42	perspective. Use `$threejs-volumetric-clouds` for weather-shaped cloud density,
43	temporal cloud reconstruction, and cloud shadows.

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threejs-atmosphere-aerial-perspective

377stars47forks

View on GitHub

How to install threejs-atmosphere-aerial-perspective?

scottstts/threejs-awesome-graphics-agent-skills/threejs-atmosphere-aerial-perspective

$npx -y skills add scottstts/Threejs-Awesome-Graphics-Agent-Skills --skill threejs-atmosphere-aerial-perspective

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# Atmosphere and Aerial Perspective
2
3	Treat sky rendering and aerial perspective as two views of the same scattering model. They must share radii, density profiles, coefficients, sun direction, exposure scale, and coordinate transforms.
4
5	## Choose the implementation tier
6
7	- Small scene with no orbital camera: analytic height/distance approximation.
8	- Planetary ground-to-space camera: ray integration or precomputed LUTs.
9	- Large geospatial world: LUTs plus world-to-planet transform, altitude correction, and depth-aware aerial perspective.
10
11	Read [references/atmosphere-system-contract.md](references/atmosphere-system-contract.md)
12	before implementation. It separates the LUT/ellipsoid architecture from
13	dynamic integration and the shell/post handoff.
14
15	Read the [LUT sky and aerial-perspective entry](examples/lut-aerial-perspective/atmosphere-effect.js)
16	and its `source/` modules for the SkyMaterial, SkyLightProbe,
17	SunDirectionalLight, AerialPerspectiveEffect, precomputed-texture loader,
18	sun/moon direction, lens flare, tone mapping, and dithering path used by the
19	LUT example.
20
21	## Required outputs
22
23	- sky radiance;
24	- sun transmittance/color;
25	- segment transmittance from camera to visible surface;
26	- segment inscattering;
27	- optional sky irradiance for materials;
28	- explicit scale conversion between world units and atmosphere units.
29
30	## Failure conditions
31
32	- sky and terrain haze use different sun directions or coefficients;
33	- the atmosphere is a uniformly transparent sphere;
34	- camera altitude is measured in a local flat frame during orbital motion;
35	- scene depth is treated as linear when it is not;
36	- exposure is used to hide incorrect radiance scale;
37	- atmosphere fades abruptly at shell entry.
38
39	## Routing boundary
40
41	This skill owns molecular/aerosol sky scattering and surface-segment aerial
42	perspective. Use `$threejs-volumetric-clouds` for weather-shaped cloud density,
43	temporal cloud reconstruction, and cloud shadows.

People who liked this also viewed

6 picks

Type