# NullFit Pro by NullcoreNullcore Official SiteThe fastest way to refit clothing for VRChat avatars — now with live real-time sculpting.NullFit Pro is the upgrade tier for power users: drag-and-watch live preview, four refit algorithms with auto-repair, multi-outfit batching, and surgical per-region control. A job that used to eat 5+ hours per avatar now takes about 30 minutes.Watch the full workflow: https://youtu.be/x6WbdYue5vkQuick showcase (under 30s): https://youtu.be/05IQkzGcnRc(Shows the complete pipeline — including the 30-second touch-up sculpting on the few outfits that need it. No misleading "one-click magic" cuts — what you see is what you get.)Rather run it monthly in the cloud instead?https://mixxy.gumroad.com/l/NullcoreCloudNullcore Cloud runs NullFit and NullSculpt on my servers. Cancel anytime.---## What Pro unlocks### Live Preview — real-time sculpting- ✦ Four real-time sliders — Looseness, Anti-Clip, Body Clearance, Polish. Drag and watch the refit react instantly.- ✦ Four presets — Tight / Standard / Loose / Layered. One click for the common cases.- ✦ Clipping heatmap + Fit Check score — see exactly where cloth pokes through, with a fit-quality score, before you commit.- ✦ No bake-and-pray loop. Sculpt, look, ship.### Refit algorithms — pick the one your avatar needs- ✦ Standard — the everyday refit. Clean and fast; all most humanoid avatars need.- ✦ Better — the default Pro algorithm. Stronger refit plus one-click clipping cleanup. Handles ~95% of standard avatars.- ✦ Adaptive — built for complex avatars (anthro, stylized) where the standard refit distorts. Follows unusual shape-key authoring that simpler refitters can't.- ✦ Snap — last-resort fit for irregular avatars: dragons, custom proportions, anything other algorithms can't track. Fits cloth directly to the body's current shape, no matter how weird.- ✦ If a refit looks off, the panel tells you which stronger option to try next. You don't have to guess.### Get the fit perfect- ✦ Auto Clipping Repair — standalone, three detection modes (Fast / Balanced / Thorough), strength up to 2.0, optional smoothing.- ✦ Shrink to Fit — pull cloth in snug against the body for a clean close fit.- ✦ Symmetrize — mirror a fit so both sides match perfectly.- ✦ Smoothing Workshop — standalone smoothing playground. Run it on any shape-key result, click to layer the effect, dial the strength. Pair with Preserved Faces to smooth everything except the bits you want crisp.- ✦ Preserved Faces — in Edit Mode on the cloth, select the parts you don't want touched (waistband, trim, anything) and click Mark. Those faces stay locked no matter what refit you run.### Surgical control- ✦ Shape Key Filter — restrict the refit to specific regions. "Breasts Only" refits just the cup and leaves straps and band alone; "Exclude Breasts" refits everything except the chest.- ✦ Strength Slider — one 0.5–2.0 dial. 1.0 is normal, higher for more breathing room, lower for a tighter fit. No guessing at millimeter numbers.### Productivity & batch- ✦ Refit All Selected — apply the refit to every selected outfit in one click.- ✦ Match All Shape Keys — for each body shape key, create a driver-ready cloth-side key so the outfit follows the body live.- ✦ Multi-Body Wardrobe & Presets — capture body shapes as presets, then run any number of outfits against any number of bodies in one click.- ✦ Weight Transfer — copy body vertex groups onto store-bought outfits so they inherit your avatar's rig.- ✦ Align to Body & Bake Cloth Pose — helpers to seat an outfit on the body and bake a posed result before refitting.---## How it worksA Blender add-on does the work in your scene, paired with the Nullcore Companion app that handles the heavy lifting. Install both, activate Pro with your license key, and refit.## Get started1. Buy here — your license key arrives by email within seconds.2. Download the bundle from your Gumroad library: three files — Nullcore-Companion-[VERSION]-Setup.exe, nullfit.py (the Blender add-on), and README.txt.3. Run the installer. A real per-user Windows wizard — no admin, no UAC, no zip-fiddling. SmartScreen will warn on first run since the build isn't signed yet — click More info → Run anyway. (EV cert is on the wishlist.)4. Companion launches. Paste your key, click Activate.5. The refit engine downloads automatically from your Library tile. Restart Companion once when it finishes.6. Install nullfit.py in Blender — Pro features unlock in the NullFit tab.That's the whole process. No subscription, no monthly check-ins.---## Tech specs- Platforms: Blender 2.93 LTS through 5.x on Windows — every version, no gaps. macOS / Linux on the roadmap if there's demand.- CATS-compatible: runs alongside the CATS Blender Plugin without conflict.- Avatars: any avatar with shape keys + clothing. VRChat / VRC. Humanoid, anthro, dragon, stylized, and custom-proportion avatars — including the irregular cases other refit tools can't handle.- License: 1 machine per license. Moving to a new PC? DM me on Discord and I'll release your slot.- Updates: free updates on the v1.x line — your purchase covers ongoing Pro features.- In-app updates: Companion notifies you when a new version ships and pulls it directly — no return trip to your store page.- Privacy: activation requires internet (one-time, plus a 7-day offline grace period after). No telemetry, no usage tracking, no phone-home during normal use. If your connection drops for up to a week, Pro keeps working.---## Is Pro actually for you?The base plugin + Companion stay free for single-refit use. Pro is for power users — multi-outfit batches, irregular avatars (anthro, dragons, custom proportions), live-preview sculpting, and per-region surgical control. If your avatars are standard humanoids and you only refit one outfit at a time, the free tier will probably do you fine.---## Refund policyAll sales are final once a license has been activated. That said — if something is genuinely broken on your end, DM me on Discord first. I'd rather fix it than leave you stuck.---## Support- Discord (fastest): https://discord.gg/DRXRnPDmbJ- GitHub issues: https://github.com/nunnie-bunnies/NullFit/issuesBy purchasing you agree to the End User License Agreement: https://nullcorestudio.com/eula---Product by Nunnie Bunnies (Mao Mao). Part of the Nullcore toolkit.