// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Quantize an RGB color to fixed channel levels
// Not compiled or tested in-world
// Setup: Use a spare owned prim. Set LEVELS2..256 and RGB0..1. Touch for owner-only numeric output.
// Stop / restore: Remove/disable; no colors or materials are applied.
// Notes: This produces a regular RGB cube palette; it is not adaptive image quantization.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Color calculation only.
vector RGB=<0.18,0.53,0.87>;
integer LEVELS=6;
default
{
    touch_start(integer detectedCount)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        if(LEVELS<2||LEVELS>256||RGB.x<0.0||RGB.y<0.0||RGB.z<0.0||RGB.x>1.0||RGB.y>1.0||RGB.z>1.0)
        {
            llOwnerSay("Invalid levels/color.");
            return;
        }
        float steps=LEVELS-1;
        vector q=<llRound(RGB.x*steps)/steps,llRound(RGB.y*steps)/steps,llRound(RGB.z*steps)/steps>;
        llOwnerSay("Quantized="+(string)q+" error magnitude="+(string)llVecDist(q,RGB));
    }
}