What’s this video about?
If you’ve just started working with 3D models in Unity, this video will help you avoid the most common mistakes
beginners often make:
Mistake 1: Incorrect Pivot Point Placement
When a model’s pivot is misaligned, rotating the object won’t behave as expected – it will rotate around a random
point instead of its own center. Also, setting the model’s position to (0,0,0) might place it somewhere unexpected.
Solution:
- In Unity, add an empty GameObject at the logical center point and make the model a child of it – this way, the
empty object becomes the pivot. - Alternatively, open the model in Blender and adjust the origin using Set Origin.
Mistake 2: Incorrect Scale
Did your imported character turn out to be 3–4 meters tall? An incorrect scale can cause issues with lighting
(especially baked lighting), physics, and other systems.
Solution:
- Apply the correct scale in your 3D editor (in Blender: Ctrl + A → Apply Scale).
- Set the correct Scale Factor in the model’s import settings in Unity.
Mistake 3: Pink Materials
If your model looks pink in Unity, it means the materials couldn’t be rendered—usually because the shader used is
incompatible with your render pipeline.
Solution:
- Select a compatible shader in the material settings.
- Models using complex shaders often don’t import correctly into Unity. It’s best to create your own
shader in Unity and manually assign textures to the appropriate channels.
By the way, all of our models are set up to work with all Unity render pipelines.
Mistake 4: Too Many Polygons
If your model contains too many triangles, it can negatively
affect performance and lower the game’s FPS.
Solution:
- Manually optimize the mesh in a 3D editor (which can be time-consuming), or look for a more optimized
version of the model. - Use Blender’s Decimate modifier to reduce polygon count (note: this doesn’t work well
for all models).
Mistake 5: Missing Colliders
If your character or object falls through the ground, it likely doesn’t have a collider.
Solution:
Add a Mesh Collider or Box Collider in Unity.
💬 Got questions?
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