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
Related
i imported my blender backrooms model to unity, and i got a wierd mess, this is the model in unity , when its in blender it looks exactly as intended, and even when i render a image of the model in blender all the textures look like they should,this is the model in blender, not a rendered image, ive browsed countless "solutions" and i cant find one that applies to mine, i have tried changing unity import settings, extracting both materials and images, and so on, nothing makes the materials look proper, my guess is that its not accounting for UV mapping junk so its stretching the image so far that it becomes blurred beyond recognitiion, if anybody can help me out it would be much appreciated, also just a side note but i dont think the displacement maps work in unity like they do in blender
edit: the model has multiple objects, the floor ceiling and walls are all 3 seperate objects
edit again: here is the node layout for the floor, every other node layout for the walls and ceiling is just the floors layout but without a displacement map on it
It's been a minute since I've used Unity. But without looking at the blender file, I would suspect that it could maybe be that there's two UVs on your model, and Unity is using the wrong one. I believe Unity uses the first UV Map for texture info, while the others are used for lightmap info. If that's the case, just delete the wrong one in your model. Hopefully that helps!
Edit (more info): I created a basic model with walls, ceiling, and floor. The walls, and ceiling only have a UV Map called UVMap. However, the floor has two UV Maps: UVMap and UVMap.001. Like so:
Now, if I click on that little camera icon next to the UVMap/UVMap.001 you will possibly see the overall size of the bricks change. If so, delete the wrongly scaled UV Map so you only have one UV Map in that window. After that, I would just ensure all your UV Maps are called the same on your other meshes, which is typically UVMap as default. You will also want to be sure all of your images are being mapped by UV, not Object or Generated as Unity cannot use that information. From there you should be good to go!
I've decided to use Minecraft like characters in my small game since I do not know how to make 3d models (nor I want to learn how to do such thing in the near future).
However the task now seem a little harder than expected:
I've tried looking in the asset store for prefabs to use but without success.
So, I've decided to try and make a model on blender(by not knowing a thing about non parametric 3d modeling, my knowledge of blender is extremely limited) and import it into my unity game.
And surprisingly, I managed to create the model using McPrep, export it and import it into unity maintaining objects that drive the bones (the output is a bit messy but I think I can manage to clean it up a little).
However the imported version does not have any skin and appears in a gray shade.
Turns out that the output does not keep materials/textures with it!
I've tried getting the texture used by blender and it returns the same skin I fed into mcprep so, by using the same skin, I've tried creating a material with it by getting the .png and using it as texture in a unlit texture material.
However, the result is a bit messy as shown here (left is Blender, right is Unity):
How may I make the texture on unity3d be better and right? (I've heard there is a way using a C# script but I really don't know what it is nor how to do it)
EDIT:
Thanks for the answers before, I did set the filter to point obtaining the texture to be a bit better. However the part that should be transparent is displayed in black on top of the other part (I think).
The image on the right is only filter point and the one on the left is point + alpha is transparency and the transparent shader using unlit transparent
ANSWER FOUND:
As Bart said, make sure the textures' Filter Mode is set to Point, but additionally:
Minecraft player characters are made of 2 layers, the second layer usually has lots of transparency and is used for clothing or other relief detail. So you need to use a transparency-capable shader on your material in Unity.
You're running into a filtering issue. In your case you want no filtering to happen. So select your texture, and in the inspector change the import settings so that your "Filter Mode" is set to "Point". In this case it will do no filtering of the input and your large pixels should appear sharp as you want.
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 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.
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. :)