Most common upload mistakes

If you upload your assets to BlenderKit, you get focused feedback on your assets from our team. The validation comments that appear below your assets link to the tutorials or short explanations of these issues on this page.

Fixing inverted normals in Blender

Fast way to fix your inverted normals

Brush Preview

Brush Preview

HDRs not accepted due to usefullness

BlenderKit HDR library collects only usefull HDR maps

Low range HDRs aren't HDRs

Images that have 8bit depth or their values are capped between 0 and 1 aren't real HDRs

Unsufficient scene lighting

Unsufficient lighting

Improve Scene composition

Improve Scene composition

Add more cameras to your scene

Add more cameras to your Scene template

Unclear purpose of 3D scene

Unclear purpose of your 3D scene

Insufficient quality of uploaded asset

What is our quality limit for accepting assets?

UV maps names shouldn't be included in the material

UV maps names shouldn't be included in the material when you upload it.

Asset fixed during validation

Since the problems were minor, we fixed them for you.

Improve thumbnail quality

Improve the thumbnail quality of your asset.

Material bump intensity shouldn't be too strong

If you overdo bump intensity in Blender, you can get not only unrealistic look, but also shading artefacts.

DirectX normal map

Your normal maps don't match the OpenGL standard. The material will not look correct after being downloaded from the BlenderKit.

How to name and describe your assets.

How to improve your asset naming in Blender and BlenderKit

Missing profile info

Missing profile info

Upload Looks like a test

Your BlenderKit upload looks to be just a test

Unfinished asset

Unfinished assets

Incorrect upload

Incorrect upload

Asset is a too close variant of previous upload

Just changing the colour isn't enough ;)

Duplicate asset

Duplicate asset

Disconnected nodes

Disconnected nodes

Nodes spaghetti

The nodes are organized in a confusing manner. This may cause inconvenience to BlenderKit users.

Copyright violation

A few words about Piracy and CC0 models. Just don't do it please.

Tutorial result (another donut)

This upload looks like another tutorial result!

Material too simple

We try to keep only high-quality materials.

Improve material IOR

The material doesn't have the IOR of the material that's in its name.

material Subsurface scattering radius

Subdivision surface scattering radius in Blender is in metric units and should rarely be over 0.05

Unconventional Thumbnail

Unconventional Thumbnail will make the BlenderKit base non-uniform.

material PBR setup

When Principled shader setup is incorrect.

Wood mapping on model

The wood should always be mapped with the grain oriented parallel to the longer side of the wooden part, then the material in the BlenderKit database will look great.

Plant leaves with the alpha channel overlapping

Leaves with the alpha channel overlap, this can lead to an unrealistic rendering of the plant.

How to make lighter models in Blender

What defines when a model is too heavy for Blender 3D

Manufacturer and Designer tags

What are Manufacturer and Designer tags in BlenderKit?

Model Topology Issues

There are topology issues in this model, like double/overlapping faces, double vertices, non-manifold faces, subdivision surface artifacts, or similar.

Wrong meshes or missing parts

Some parts seem to be missing, for BlenderKit uploads, be sure everything is parented to a single parent and not to include (unparent) any extra hidden meshes.

Missing textures in file

If filepaths to the textures are complex or have non-standard characters, Blender might have problem packing these.

Improve materials on Model

There are some things to improve in your materials. Please study how to correctly use Cycles / EEVEE material systems to reach a better result.

Why applying scale (and rotation) matters

So many reasons to apply scale whenever you can in Blender 3D!

Model unrealistic shape

The shape/proportions of the of the object aren't realistic. Check reference pictures to study more the real shape of this object.

Multiple assets together

Please split this asset in several assets.

Unrealistic texture size

Upload your materials with correct 'texture size' parameter

No materials on model

You didn't use any or only too simple materials.

Authorship verification

In this article, the BlenderKit team explains its principled position on model authorship.

Put the model on the ground

The model in the scene should lie in a natural way for faster production and to follow the drag & drop philosophy of BlenderKit database.

"Fantasy Design"

In this short article, we will talk about Fantasy Design. The BlenderKit team sees Fantasy Design - as a design not of a very high level. As a rule, novice designers do not have enough knowledge, but they have a great desire to do Fantasy Design.