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UNITY BLENDER TREES TOO SMALL LICENSE

Usually this doesn’t matter, as the model looks exactly the same. Whatever value of X was positive in Blender, will be negative in Unity.

The X axis will be reversed from what you had in Blender. If you click on your newly created object and take a look at the transform panel, you will see that the scale is 1, and a rotation of “almost” -90 applied on X. You can place the file there by many difference ways:Īfter that, simply drag and drop the asset into your Scene. blend file into a location inside your Assets folder in your Unity project. fbx file, and then import this file into Unity.Īt first that sounds like both paths should be 100% equivalent. blend file into Unity, what really happens behind the scenes is that Unity will call Blender’s export scripts to generate a. fbx file from Blender, then importing this file into Unity There is no correct answer here, as different workflows and cases might find one approach better than the other one: You have two main options to import a Blender file into Unity.

Backface culling is when you explicitly tell your program that only one side of a face should be rendered. What about backface culling? Unity only supports one-side rendering per face, so enabling/disabling backface culling in Blender won’t make a difference. In those cases you should use a cube mesh shape for instance, or duplicate the face (you can extrude the face and move it slightly to the other side), you should never have a single face that will be looked at from both sides. What if I need to show both sides of a plane? Like a wall that separates two rooms for instance. To do that, go to Edit Mode, select all faces, go to Mesh > Normals > Recalculate Outside. In your model, all normals should always point outwards. This vector is called a normal and it points to only one side of the face. What is a normal? In a mesh, each face has a single vector which is perpendicular to the face. If you are experiencing this issue try the following: This is caused by the normals of those faces pointing inwards. Sometimes when importing a model into Unity, it appears as some faces are invisible. However, if you have a really high number in there, the model will show far away in Unity as well, so keep an eye there and setting it to 0 won’t hurt. When you place your model in Unity you will most likely move it around, so you don’t have to set the location transform in Blender to 0 as it won’t do much.

Keep an eye at the location transform in Blender.

Why is this? If you set the origin to say the middle of the model, when you import it to Unity and drag them to your terrain / floor, the middle of the model will be on Y = 0, so you might have to drag your model up each time. In order to set the origin of the model to the 3D cursor: select the model, then navigate to Object > Set Origin > Origin to 3D Cursor. To be more precise, Open the View window and set the location of the 3D cursor manually. To change the origin in Blender, select the Cursor tool and click where you want to place it. This might not apply to all cases, but for instance if in Unity you’ll have the floor on Y = 0 (Y as in vertical coordinate), and your Blender model (in this case, a tree) will go on ground level as well, it’ll be much easier if you set the origin in Blender to the base of your model.

Set the origin to a meaningful position.

If they already come with weird numbers in there this will be confusing. Why is this? In Unity you want to be able to apply transforms to your models. On the Transforms panel, the values for Rotation should show 0 and for Scale 1 on all the axes. We are not using Blender to create a rendered scene, we just care about the model, so unless you are indeed doing other things with your Blender file, you can remove these elements.

Delete the default Blender camera and lamp.

Say you created a nice-looking low poly tree in Blender, like so:īasic check list before attempting any import:

UNITY BLENDER TREES TOO SMALL LICENSE

Image credit: Primalshell, license CC BY-SA 3.0 2.

In Blender, the Z axis points upwards, whilst in Unity, the Y axis points upwards.

Blender uses right handed coordinate system, whereas Unity uses a left handed coordinate system (see illustration below).

The first thing to keep in mind is that there are two main differences between the coordinate system of Unity and Blender.