// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Encode a direction as a normal-map pixel
// Not compiled or tested in-world
// Setup: Use a spare owned prim. Set nonzero NORMAL. Touch for owner-only numeric output.
// Stop / restore: Remove/disable; no colors or materials are applied.
// Notes: This is numerical encoding only. A texture image also needs the intended tangent basis and channel convention.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Color calculation only.
vector NORMAL=<0.3,-0.2,1.0>;
default
{
    touch_start(integer detectedCount)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        if(llVecMag(NORMAL)<0.000001)
        {
            llOwnerSay("Nonzero normal required.");
            return;
        }
        vector pixel=(llVecNorm(NORMAL)+<1.0,1.0,1.0>)*0.5;
        llOwnerSay("Encoded pixel="+(string)pixel);
    }
}