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3D CAD Field Instrument Prompt

Turn a real 3D scene into a responsive, accessible web experience with purposeful interaction.

A free implementation prompt for a production-grade 3D terrain instrument with real scene state, responsive composition, and WebGL fallback behavior.

30 min setupbeginnerThree.js + WebGL

What is included

Everything needed to make the result.

  • Public skill file
  • Starter instructions
  • Open preview

File and codebase preview

See the system shape.

create a production-grade 3d website inspired by the attached reference image, using the installed `SKILL.md` as the governing implementation standard.

do not recreate the reference literally. preserve the core interaction idea, a scientific expedition interface layered around a central 3d terrain scene, but create a completely new visual system, layout, data model, and environment.

## project

build a website for:

**ORBITAL FIELD UNIT**

an autonomous planetary research platform for remote terrain analysis, mineral mapping, atmospheric observation, and expedition planning.

the website should feel like a live scientific instrument rather than a marketing landing page.

## core experience

the viewport is a full-screen mission interface.

a large interactive 3d planetary environment occupies the center.

scientific modules are positioned around the environment as semi-transparent interface surfaces.

the ui should feel physically connected to the scene.

changing a control should visibly change the 3d environment.

the 3d scene is the product.

## environment

create a procedural alien desert basin.

scene elements:

* large eroded mountain ridge in the distance
* shallow crater basin
* dry sediment channels
* scattered dark mineral formations
* one central geological specimen
* volumetric atmospheric haze
* low sun angle
* long hard shadows
* subtle suspended dust
* terrain variation generated from noise or displacement
* no earth vegetation
* no sci-fi buildings
* no spacecraft in the hero

the landscape should feel scientifically plausible rather than fantasy.

## central specimen

place one large geological formation near the center foreground.

dimensions in virtual scale:

* approximately 2.4m wide
* 1.7m tall
* asymmetrical silhouette
* rough oxidized surface