I'm trying to group some objects together in unity by creating new empty GameObject, zeroing its position, then dragging my children objects into it, my problem is that it's anchor position is far away from children positions, am I missing anything? please see the picture for clarification: Picture
You must set the pivot where you want, in 3dsMax and only then export it.
It's a basic, well-known problem in 3D engineering and games.
Regarding how to change the pivot in 3dsMax or other software. That's a question for that software, it's different in everything. For example in Cheetah3D you press the button labelled
Reset the pivot to here
I emphasize that you MUST change it in the model-making software, you can't do so in Unity and there is no workaround.
Note that if you just google
"3dsMax set pivot model"
you will instantly find many tutorials on this. Example.
Related
My university colleagues and I are trying to develop a Virtual Reality project for university where we use an Oculus headset and create a scene with a mouse where you can select and click and drag different objects in the scene. You are supposed to be stationary and move one of the controllers as if it was a mouse. However, we want to modify the behaviour of the controller to better fit the 3D environment. When an object is not selected, we want to interpolate the depth of the cursor according to the interpolation of the nearest objects. There is a paper that we were shown in class that we are supposed to drag inspiration from, and it achieved this kind of behaviour of the cursor with a normal mouse but I can't seem to find any information on how they did it. Our final goal would be to compare both ways of managing the scene and assess which one is better. We are using Unity with VRTK as suggested by our professor, but we and can't really seem to be able to access the mouse's file on how it moves or its behaviour, and we are kind of lost on where to go. Could someone help with this?
Here is the paper where they talk about it:
https://dl.acm.org/doi/pdf/10.1145/3491102.3501884
We so far have tried creating a simple scene and adding objects with different behaviours as well as a controller instance, but we seem to only be able to modify the events of the mouse and not its specific behaviour.
Kind regards and thanks
I'm working in a Unity application with HoloLens, where I place different prefabs across a room and I use TapToPlace to put it on a surface using SpatialMapping. I works great with some fbx models that I had, but then I received some models that I got in .max format, which I converted to FBX using 3DS Mask, they look good, but the exact setup as the other models, whenever I tap them, they are place halfway below the surface.
I've noticed that the working prefabs puts the cursor right at the bottom when in placing mode, while the "broken" ones put the cursor in the middle. Here is an example of how it looks in Unity:
Working:
Not working:
What is that circle there? it looks like the cursor, because everytime that I tap the object, the cursor is placed exactly there for each prefab, but for the ones in the center, half of the model shows below the surface, somehow it looks like it's related; is there a way to move that to the bottom as the working one looks like? if not, is there something that I need to do in 3DS max when exporting these new models to FBX? both models are using box collider, TwoHandManipulatable and TapToPlace.
Thank you, I appreciate the help.
The issue is on the axisof the model -- the pivot point of the model is not at the bottom of the model.
If at all possible it is recommended that you fix the model in your 3D modelling application, If this is not possible, you can fix it in Unity by adding an extra parent transform, more information please see:
https://answers.unity.com/questions/62675/redefine-axis-of-an-object.html
https://answers.unity.com/questions/357698/can-we-change-the-pivot-points-of-any-gameobject.html
Is there a possibility with a google tango camera to create a situation, that my player goes on the table and if he comes out of the table he falls? Has anyone ever done anything similar and has references or ideas on how to do it?
in order to implement the functionality that you described, you will need to find different planes from the real world and translate their position into Unity scene. There is a class in Tango SDK, called TangoPointCloud which contains several methods for recognizing planes and translate their position into unity scene points. By knowing the positions of the table and the floor, you might be able to implement the feature you want. In my case, TangoPointCloud helped me find the walls from a room and their position relative to unity scene units.
In general I wanted to make it in unity3d but I saw that in tutorials, they made it in blender.
This is what I did in unity:
I want to make this high cube hollow on the inside, and make a small door so that I will be able to walk inside the cube. Later on, I want to somehow add stairs but the problem now is how to make it hollow on the inside.
I saw in some places the suggestion to use blender so I tried this tutorial in blender:
Blender
But got stuck there after I checked the Add Mesh Extra Objects and clicked on Save User Settings. I tried then to click on the bottom on Add > Mesh but then I don't have Extra Objects. I have Extras objects like in the tutorial video.
Anyone my main goal is to make the high cube hollow on the inside with a small door on the bottom so I will be able to walk inside.
From what I know Unity3D has no 3DModelling by default (maybe there is something for that in store), so you need to use Blender or some other program (for example Maya). There is https://blender.stackexchange.com/ where you can ask same question (since it is not really unity3d related)
Maybe this will be helpful : https://blender.stackexchange.com/questions/5849/how-do-i-create-a-solid-object-cube
Overall what you could do, but it is not the est way - you can build a everything out of boxes yourself in Unity3D
Try use to boolean modifier. Take a look this tutorial:
Blender 2.6 Tutorial 26 - Boolean Modifier
I'm trying to do some Augmented Reality in Unity using the Vuforia plugin. I've managed to get everything working (I'm using a 3d model of a car), only the position of the car relative to the marker is wrong when I come to preview it (click the 'Play button at the top and watch through the computer's camera - is 'preview' the right name for this?).
It should be sitting on the the marker in the center, but instead it's floating above the marker and off to the side by quite a bit. The positioning is definitely right in the program itself, so I'm not sure why this isn't reflected in the preview.
Also: at the moment the car is simply an untextured grey object. I realise the textures are included in a subfolder, however I can't drag the entire car's folder (including the Textures subfolder) into the ImageTarget, only the .3ds file itself. Does anyone know how to apply the original textures to the car?
Thanks so much for your help in advance!
Ben
Well, to start answering your question about the drifting away part, you've probably got a Rigidbody attached to your Car? Well, if that's the case, then Go to the Inspector where the Rigidbody is and you'll see constraints.
To avoid it floating off, you might want to check Freeze Positions for whichever direction it needs. Probably Y axis.
Now, I'm not entirely sure if you're using Vector.AddForce to move your objects, but if you are then just check if your car can move if you've put all constraints on.
If you can't then in your code trying using Object.Rigidbody.SetActive(true) when you need it to start moving, and Object.Rigidbody.SetActive(false) when its done.
On the other hand, if you aren't using Vector.AddForce() then remove Rigidbody component if you've used it.
As for the material. If you've got the material in your folder that you've downloaded then just drag and drop it into Assets. Now sometimes your car may be one solid mesh, but some times it may be multiple meshes. So which ever the case. Drag the material from your Assets onto the Hierarchy panel over your car mesh/meshes and it should turn into that color.
Hope it helps. :)