Common Mistakes You May Encounter In Blender
[Work In Progress] Changelog in comments
1. Help! I installed a Blender Add-on, but nothing happened or it doesn't appear to work.
2. Help! I can't Scale or Rotate anymore in Blender!
- You may have accidentally enabled Manipulate Center Points.
3. Help! My selection is Rotating or Moving incorrectly!
- Example: gfycat.com/FewWarpedAfricanpar…
- Keep both Transformation Manipulators (Rotate and Translate) enabled.
- This will help you see the pivot point during rotation and other operations.
- Then change the Pivot Point.
4. Textures are not showing correctly while Viewport Shading is set to Texture.
- If your Viewport Shading is set to Texture, the model will only show the active selected Image Texture Node.
- Example: gfycat.com/LoneAngryJackrabbit
5. Help! Objects are disappearing / clipping while zooming in 3D Viewport Editor.
- Example: gfycat.com/MajorDefensiveGange…
- In the 3D Viewport Editor, press the N key to open the Properties Shelf.
- Try increasing the Clip value for End.
- Or try reducing the Scale of the Objects.
- You can also change the Clip value for the Camera Object in the Properties Editor.
6. Help! My objects in the 3D Viewport scene are too far away or offscreen!
- Press Home key [ 3D Viewport will reveal all objects in scene ]
- Press Numpad_Period key [ 3D Viewport will reveal selected Object(s) ]
Also check the Visible Layers
7. My rigged character isn't deforming properly when posing.
Before rigging a character, make sure both the Armature (Skeleton) and the Mesh Object(s) (Character Meshes) have their Transforms applied:
- Hotkey Ctrl + A [Object Mode]
- Object -> Apply -> Location | Rotation | Scale
You can also tell if an Object's transform hasn't been applied by looking at the location of the Object Origin (Origin Point)
8. Checkered hair, strange checkered hair mesh!?
this happens mostly from doa hair rips. what the creator did was add a front and back to the mesh instead of just making the mesh double sided (or its made from ripping, not too sure). so.. in places there's 2 faces right on top of another, causing the colliding and ugly shadows; and that criss-cross/checker pattern too. maybe it looks good in the doa games, but for gmod/sfm it looks like shit XD
it would take some time. but you would have to manually delete one of the sides where you see that collision.
I had this issue with one of Christies hairpieces, and instead of going through all that, i found another download where her hair looked normal and that issue was already fixed; you might wanna try to find another download for that specific hair; i'm sure there's a few Sarah Bryant models with this already fixed - Alan13
L Key = Select Linked [Faces, Edges, Vertices]
- This will select the connected faces on the hair mesh.
H Key = Temporarily Hide Selection
- This makes it easier to work with overlapping meshes.
Alt + H = Unhide Selection
9. My Normal Map texture makes my 3D model look blocky or inaccurate.
You may need to convert the Normal Map texture. Try 1 of the options below.
- In the Node Editor, select the Normal Map Texture Node, open the Properties Shelf (N key), and then uncheck 'Use alpha'.
- Invert the image color.
- Example: gfycat.com/WideeyedScentedCoyp…
- Change the Blue layer of the image to White.
- Example: gfycat.com/HealthyNegativeIndi…
- HUE method, select the part on the texture material and change the specific color.
- Invert the green channel of the normal map by adding a Invert Color Node between the Texture Map Node and the Normal Map Node. - tip by Starbrain
- Example: i.imgur.com/FcxGLoZ.png
- More Info: wiki.polycount.com/wiki/Normal…
10. My 3D model has weird shading or dark edges, even when there are no lights or textures/materials applied.
Try 1 of the solutions below:
- Select the Object, switch to Edit Mode, select the whole mesh, and Set Normals from Faces.
- Select the Object, switch to Edit Mode, select the whole mesh, and Remove Doubles.
- Select the Object, switch to Edit Mode, select the whole mesh, and Recalculate Normals.
*BONUS* What the hell is a Vertex Normal?
11. The textures on my 3D model are turning Pink (or Black) in the 3D Viewport Render after few minutes or hours in Blender.
- There's a chance the image textures are partially corrupted.
- Some variant of DDS textures may not play well with Blender. You should convert the image texture to a different image format (PNG, TGA, JPG, etc).
- Try packing the image texture files into the .blend file.
[Below will be moved to a Rigging Tutorial in the future]
I just had a thought about the weird placement of the pelvis bones from the Rigify's Human (Meta-Rig).
I don't think I've ever seen a tutorial address how to use the bottom tips of the pelvis.L and pelvis.R bones.
Then I thought, why not try using them as butt bones. It kind of makes sense.
- Before: i.imgur.com/PXUGM0F.png
- After: i.imgur.com/pmOHKW6.png
If you're working with Automatic Weights, it requires some experimentation.
For more tutorials, click here: