Sebastian Castellanos Blender 5.0.1

Preview

Model sources

Patreon UniFans

Prerequisites

Before using this model, ensure you have the following add-ons installed:

• MustardUI2026.1.0: Required for model management.
• MHX Runtime System5.0.0: Necessary for the proper functioning of the model rig.

Optional Add-on

• Daz Importer5.0.0: Adds extra features but is not essential.
• Mustard Simplify2025.4.1: To simplify the model and enhance the usability of view preview.

Feature

• 🦴 Fully Daz G9 topology (FK + MHX)
• 🌭 MustardUI
• 👕 Costume
  • In-Game: Classic, Survivor, Drifter
  • Custom: Nike Socks
• 👨🏻 Basic Ckang shader

---

• 💪 Shapekeys
  • Faceit (ARKit Support)
  • Genital Control
  • Anus Control
• 💈 Curves hair
• ✨ Controllable skin properties

MustardUI

MustardUI is a convenient panel for you to use the model, found in the N key panel after clicking on Sebastian Armature.

You can switch the genital switch here, modify skin properties, switch costumes and hairstyles, and some minor features here.

Costume

In-Game

I have created several in-game costumes for Sebastian, including Classic, Survivor, and Drifter.

The Drifter Jacket and the shirts inside the jacket are included under Survivor, allowing you to freely combine them.

Custom

Includes a pair of simple socks that can be modified color through the Shader Editor.

Advanced controls

Faceit rig (ARKit support)

You can control expressions through the Faceit addon(mocap) or by directly using facial control devices.

Genital controls

I have set up detailed controls for genital parts (Foreskin) using shape keys, and you can manipulate them with specific bones.

Anus controls

You can find Morph in Mustard UI, which contains Shapekey controlled by Anus, allowing you to adjust Anus to your preferred shape.

Curves hair

Sebastian has several types of additional body hair made from curve hair.

In Mustard UI, you can find a GN section where, by default, the displayed curve hair is reduced by 90% compared to the actual hair, and setting it to 0 shows it all.

Another switch allows you to apply the effect to the rendering as well, which you can use as needed.

Controllable skin properties

I have integrated skin control properties into the Mustard UI. You can adjust the Dryness and Sweaty to make Sebastian appear sweaty in rendering.

Changelog

January 20, 2026 v2

• Massive Update