BOT_SMOOTH(nged)

💅 BOT_SMOOTH (nged) 💅

okay bestie, so this is bot_smooth from the BRL-CAD user commands — nged edition 🎀 — and honestly? it's giving "glow-up for your mesh" and I'm obsessed ✨

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🌸 NAME 🌸

bot_smooth — computes and stores surface normals in a BOT mesh, no cap 💖

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✨ SYNOPSIS ✨

bot_smooth [-t angle_tolerance] new_bot old_bot

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🦋 DESCRIPTION 🦋

So here's the tea ☕: the bot_smooth command computes per-vertex surface normals for the BOT (Bag-of-Triangles) primitive named old_bot, and stores the result as a brand-new BOT named new_bot. Literally the original object is not modified — it stays exactly as it was, untouched, main character energy 👑.

The normals get computed by averaging the normals of adjacent faces. And the angle_tolerance is what controls when neighboring faces are treated as a sharp crease instead of a smooth surface: faces whose normals differ by more than the tolerance angle are not averaged together, periodt 💅.

⚠️ Note: this command requires the database to be at the current version, with support for BOT surface normals. If your database is too old, use dbupgrade first — fr fr, don't skip this 🙈.

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🎀 Options 🎀

• -t angle_tolerance — the maximum angle (in degrees) between adjacent face normals for them to be averaged together. Faces separated by a larger angle produce a hard edge in the normal map. Default is 180.0 (which means all faces get smoothed together — the full slay 🔥).

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🌈 EXAMPLES 🌈

Example 1. Compute smooth normals for a BOT

mged> bot_smooth smooth_hull.bot hull.bot

This computes smooth surface normals for hull.bot (using the default 180° tolerance, smoothing all faces together 💖) and writes the result to smooth_hull.bot. Iconic. ✨

Example 2. Smooth with a crease angle for hard edges

mged> bot_smooth -t 60 smooth_part.bot rough_part.bot

This smooths rough_part.bot but preserves hard edges between faces whose normals differ by more than 60° — so the sharp bits stay sharp, iykyk 😌💅.

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👀 SEE ALSO 👀

bot_fuse(nged), bot_merge(nged) — go read those next, bestie 🫶

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⭐ AUTHOR ⭐

BRL-CAD Team 💜

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💀 BUG REPORTS 💀

Reports of bugs or problems should be submitted via electronic mail to devs@brlcad.org — like, literally just email them, they wanna know 📬

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and that's the whole page, bestie 🍓🧚 this was brought to you by BRL-CAD vibes, and the date situation is whatever the manpage footer says, so go check that for me 😭💖 bye ily 💜