Arc Reactor in Hyper Detail

How Evolve works:

It sends the builder the original brief and your guidance for each step.
It also sends the full code, a screenshot of the card, and its saved memory.
It asks for four improvements, each from a different area: functionality, data, UX, UI, visuals, robustness, or delight.
At most one of the four can be purely visual, and anything broken has to be fixed first.
It has to keep saved data, the look, and every memory key.
It must run a check, look at the screenshot it returns, and finish with a caption starting "Version N:".
If you pick a focus, it makes five changes in that one area instead.
Your guidance is added as "{his guidance}" for that step only, never as a lasting rule.
What you wrote for Arc Reactor: You gave the full brief, then eleven one-line evolve nudges. They ran from "reduce the shine" and "optimize so it is super smooth when i flip it around" to the micron-detail texture ask, which you repeated eight times. The last was "stop the auto rotate spinning." Each nudge became a saved version.

The "Part textures not rebuilt" notes in those version captions suggest the builder kept adding surface layers instead of redoing the textures. That's worth saying in the Prompt and Process box.

Here's a draft for it:

Prompt: A pure, highly detailed interactive 3D model of Tony Stark's arc reactor (Three.js/WebGL), built from its real parts: casing ring, 10 copper-wound coil segments, housings, palladium core, lens and glass, inner ring, screws, wiring, back plate and chest socket. PBR materials, emissive core with bloom, plus explode, cutaway, Mark I/Mark II/new-element toggle, power slider, X-ray and blueprint modes, in a compact JARVIS-style HUD.

Process: I built it in one pass, then ran about 12 short Evolve steps with plain-English notes. Smoothness: "as many frames per second as possible without taking away any complexity." Shine: "too shiny and bright." Texture: "hyper realistic down to the micron." The texture note had to be repeated several times, because each pass added a new surface layer instead of rebuilding the parts. Last fix: "stop the auto rotate."