Rex Teeth: is this $3 stack worth it for Gaming?
If you have spent the last few hours wrestling with a T-Rex avatar in Blender, trying to get the jaw to move without the whole head exploding into a polygon soup, you know the pain. Most generic animal models come with a rigid, unarticulated mouth. You can make the head turn, but you can’t make it talk. That is a dealbreaker if you are building a character for VRChat, a game, or just a high-fidelity 3D print. You need a mouth that actually works. (Rex Teeth)
Rex Teeth from Bubblegumz is a $3 solution for exactly that problem. It is not a full head; it is a specialized, rigged set of upper and lower fangs designed to slot into the Rexioum model. It comes pre-rigged with 17 shape keys, meaning the visemes (mouth shapes for speech) are already calculated and ready to drive. If you are tired of manually keyframing jaw movements or trying to figure out how to link separate meshes in Unity, this is the shortcut that saves you hours of technical headache.
Quick answer
| Best for | 3D artists and avatar creators who already own the Rexioum base model and need a functional, talking mouth for it. |
| Skip if | You don’t own the Rexioum model, you need a full row of teeth (this is fangs only), or you are looking for a complete head mesh. |
| Price | $3 |
| Format | .fbx, .blend, Unity Package, 17 Shapekeys, 1536 polygons |
| One-line take | A low-poly, pre-rigged fang set that turns a static T-Rex head into a speakable character for the price of a coffee. |
If you have the base model and just need the mouth to work, check the current file formats and license details before you buy.
What you’re actually buying
At $3, this is an impulse-buy price point, but the deliverable is surprisingly dense for the cost. You aren’t just getting a static mesh. The pack includes the source .blend file, an .fbx for general use, and a dedicated Unity Package. This means you don’t have to guess at the import settings for your engine of choice. The geometry is lightweight—just 1536 polygons—which is perfect for real-time applications like VRChat where high poly counts can kill frame rates. (Rex Teeth)
The real value here is the rigging. The teeth come with 17 shape keys covering a full range of visemes: V_IH, V_NN, V_SS, V_TH, V_KK, V_EE, V_OU, V_RR, V_CH, V_OH, V_DD, and V_AA. It also includes specific expressions like MouthOpen, NuzzleShort, Grin_L, Grin_R, and Blep. This is a complete mouth animation set. You can drive these with a standard audio viseme controller in Unity or Blender, and the teeth will move naturally with the speech. (Rex Teeth)
The seller notes that the teeth are “100% from scratch rigged to fit the Rexioum.” This specificity is key. It’s not a generic “dinosaur teeth” pack that might have wrong proportions or scale. It is built to merge with the body. The listing recommends adding this in Blender, as the shape keys should automatically merge if the teeth are merged with the body mesh. For Unity users, the seller warns that linking visemes on separate meshes can be tricky, so the .blend workflow is the recommended path for the smoothest integration. (Rex Teeth)
One important detail to note: this pack contains only the upper and lower fangs, not the entire row of teeth. If your Rexioum model is missing the full dental structure, this will only complete the fang portion. However, for most stylized or realistic T-Rex avatars, the fangs are the primary visual and functional element of the mouth. The file size is 49.4 MB, which is reasonable given the inclusion of multiple file formats and the texture/UV maps. (Rex Teeth)
Why it’s on our radar
This is a niche product, but it solves a very specific, high-friction problem in the avatar creation community. Finding pre-rigged, low-poly animal parts that actually work with specific base models is rare. Most creators have to model and rig the mouth themselves, which is time-consuming and prone to errors. By offering a “drop-in” solution for the Rexioum, Bubblegumz is saving hours of work for anyone building a T-Rex character. (Rex Teeth)
The inclusion of the Unity Package is a smart touch. Many indie developers and VRChat creators use Unity, and having a pre-configured package with the shape keys and materials set up correctly removes a significant barrier to entry. The price point of $3 is also excellent for a specialized asset. You could spend a day trying to rig a jaw and get it wrong; this gets you a working, animated mouth for the cost of a sandwich. (Rex Teeth)
What actually matters
Before you hit buy, check three things to make sure this fits your project: (Rex Teeth)
- Do you own the Rexioum? The listing explicitly states “rex not included.” This is a complementary asset. If you are building a T-Rex from scratch or using a different base model, these teeth will not fit. The rigging is specific to the Rexioum’s geometry. (Rex Teeth)
- Do you need the full row of teeth? The description clarifies: “These are only the upper and lower fangs not the entire row of teeth.” If your model requires the back molars or the full dental arch, this pack will leave a gap. If you just need the prominent fangs for a stylized look, this is perfect. (Rex Teeth)
- Are you comfortable with Blender? The seller recommends using Blender to merge the teeth with the body to ensure the shape keys merge automatically. If you are strictly a Unity-only user and don’t know how to handle separate mesh visemes, you might hit a snag. The
.blendfile is your best friend here for the initial setup. (Rex Teeth)
The license is generous for the price. You can use it commercially (with credit to Bubblegumz), edit it, and integrate it into your projects. You just can’t resell the teeth alone or claim them as your own. This is a standard, fair license for a $3 asset. (Rex Teeth)
Mid-check
If you have the Rexioum model and you’re ready to give your T-Rex a voice, this is the piece you’ve been missing. (Rex Teeth)
FAQ
Does this include the full head or just the teeth? This pack includes only the upper and lower fangs. It does not include the full row of teeth or the head mesh itself. It is designed to be merged with the Rexioum base model. You can see the exact scope of the deliverable on the Rex Teeth product page.
Can I use this in Unity directly? Yes, the pack includes a Unity Package. However, the seller recommends using Blender to merge the teeth with the body first, as this ensures the shape keys merge automatically. If you try to use the separate meshes in Unity without proper linking, the visemes might not work correctly. The Unity Package is included for those who know how to handle the setup.
What is the polygon count? The teeth are low-poly, with 1536 polygons. This is ideal for real-time applications like VRChat or mobile games where performance is critical. The low poly count ensures smooth animation without lagging your frame rate. (Rex Teeth)
Is commercial use allowed? Yes, commercial use is allowed with credit to Bubblegumz. You can use the teeth in games, avatars, or other commercial projects. You are not allowed to resell the teeth alone or redistribute them in servers. Check the license terms for the full details.
Bottom line
If you are building a T-Rex avatar and you’re stuck on the mouth, Rex Teeth is the fastest way to fix it. For $3, you get a pre-rigged, low-poly fang set with 17 shape keys, ready to drive with audio visemes. It’s a specialized tool, but for the Rexioum community, it’s a no-brainer. It saves you hours of rigging work and gives your character a functional, expressive mouth. If you have the base model, grab this and get your T-Rex talking.