Questions tagged [coordinates]

Blender represents locations in a scene by their coordinates. The coordinates of a location consist of three numbers that define its distance and direction from a fixed origin.

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9 views

select certain vertices and export the xyz coordinate

How may I select certain vertices I want from this 3d mesh in Blender and export these vertices coordinates values as a table in a *.xls or *.csv file format? I'm looking at 100 over vertices to be ...
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18 views

Rotate a mesh selecting 3 points which will be the floor

In Zephyr, I've seen that there is a functionality to rotate the mesh selecting 3 points which will be the floor. Do we have such functionality in Blender? This is quicker that playing with the gizmo ...
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How to move a bone's tail to coordinate in pose mode?

How can I update the coordinates of each bone's head & tail like I did in edit mode, but in pose mode? Is rotation (along multiple axes) with resizing (as the distance between every two tails may ...
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1answer
20 views

axis_conversion producing unexpected result?

I am attempting to convert the world transforms of scene objects into a different coordinate system (-Z forward Y up) using axis_conversion method as follows: ...
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1answer
21 views

Plotting multiple, separate, closed Bezier objects from dataset of xyz coordinates

I am new to blender and am using python within blender to do the following: Read in list of coordinate data for bezier curve objects - DONE For each unique object within the dataset, take that ...
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2answers
54 views

How to get the coordinates of a sliced volume?

I have a project where I need to calculate the immersed volume of a floating body (e.g., ship). I am starting with the basics, so I am considering a cube for now. The waterline is assumed to be a ...
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1answer
238 views

How can I “bend” object coordinates?

As you can see, the object coordinates don't bend along with the object itself. I know this is intentional, but is there a way to perhaps make them follow the contours of the object, or to manually ...
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1answer
117 views

Finding image coordinates of rendered vertex after refraction, distortion, etc

I'm in blender 2.92 working with the Python API. I know how to get the pixel coordinates of a vertex before refraction, lens distortion, etc.--see e.g. How to find image coordinates of the rendered ...
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21 views

Camera extrinsics matrix blender

The camera object in blender python API has the variable matrix_world. I was hoping it would give the camera pose wrt to the world coordinate system but if you ...
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0answers
18 views

Error Setting new vertice coordinate values in python - 'BMVertSeq' object does not support item assignment

I have a model containing two meshes which need to be resized with python. Let's call them an artwork and a frame. I want to resize the artwork depending on parameters passed in, but for simplicity ...
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1answer
191 views

Get Point Coordinates generated with Geometry Nodes?

Say you generate some random points using Geometry Nodes, how can you get all those point coordinates using the python api? The only hint I have is that the point coords are located under Point Cloud ...
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1answer
29 views

Is it possible to move an object to deform a lattice?

I've seen the lattice used to move objects into place by deforming the lattice but I want to do something different. I want to move an object to create the deformations of a lattice and apply that ...
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1answer
22 views

Apply all Transforms to duplicated objects

I have been copy/pasting objects because when I Duplicate objects, I can no longer "apply all transforms" (control a) to them. I use that feature to reset the rotations to 0 and scaling ...
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1answer
26 views

How do you change generated to object coordinates without changing the xyz

I was just wondering how you change generated to object coordinates without changing the xyz I am getting a little bit closer to it by adding -0.5 to the generated coordinate, but I'm still missing ...
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10 views

Coordinates problems in the bones of a character imported from Daz

I'm using the Daz-Blender bridge addon and i'm having issues importing characters in Blender from Daz. This is the condition in which I find the character when I import into Blender: In the folder ...
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26 views

Issues setting units to 0.01 meters

When I set the scene units to 0.01 meters several issues appear, and I hope there's a simple solution. When set to adjust origin, the origin access icon is ridiculously tiny (this would be a ...
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71 views

Need WORLD XYZ from Camera x/y/depth

Currently using location_3d_to_region_2d within a script to get the screen-space coordinates of each vertex. I need to do the reverse -- given a Cam and X/Y/depth get X,Y,Z world space. I've ...
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1answer
28 views

stl-Voxelisation and coordinates

I am new to Blender and have searched a lot for my problem, but unfortunately have not found anything useful... Is there a possibility to voxelise an stl-file with Blender and to define the voxel size ...
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2answers
89 views

random place on a face with python

I'm trying to place an object at a random place on a plane. So far, I found out how to get the vertices locations in real world. ...
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2answers
52 views

Draw straight lines for sphere/polar coordinate meshes

I want to make a texture that basically splits a sphere into 8 quadrants, and has two boxes which are place on opposite poles (since these two boxes are where more of the visual detail is in an ...
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0answers
25 views

Bounding box of 3D object in 2D render is offset

I am currently trying to translate a 3D object in my Blender scene to a region of interest in the respective 2D render. I have found these solutions 1, 2, and 3 that make use of the ...
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1answer
291 views

How to apply driver based on geometry-node-generated coordinates

I had an idea that I'm attempting to implement with Blender geometry nodes. Basically, a swarm of scarabs, which should open and close their wings when their z-height is close to a certain value. I've ...
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1answer
86 views

Which matrix to use to transform children local coordinates to global?

Setup I have an object Plane with 6 vertices. To each vertex I assign another object as child. Then I apply two keyframes on location to object Plane: In frame 0 it goes to Z = 5 In frame 81 it goes ...
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32 views

Two objects right next to each other, but wildly different coordinates [duplicate]

Can someone explain why the coordinates on these two objects are so drastically different? The Y direction, which is UP/DOWN in this view, should be the same between these two objects. But they ...
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22 views

Extract object coordinates on from Keyframes and save in external file [duplicate]

I wish to create the animation of a robot on Blender and simulate the same animation in Webots to check for feasibility. For this, I'm thinking of extracting coordinate data from all objects in the ...
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1answer
30 views

Drivers breaking down after model transformation

I am currently modelling a complicated gearbox and I am using drivers to model the relations between the parts. There are multiple gears turning in different ratios and to each gear, a few parts are ...
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0answers
27 views

How to align local coordinate with object?

I created hundreds of cylinders, joined them into a single object, then splitted back by mesh -> separate -> by loose parts in Edit mode. The splitted-back ...
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1answer
42 views

Trying to understand coordinate spaces in python

In a sense I have "solved" my original problem but I don't understand why/how its solved. I have a script that generates a number of objects and then attempts to create straight lines via a ...
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1answer
47 views

How do I keep two softbodies in the same position?

I have two softbody cubes, one is smaller than the other. They are both aflling at the same speed, but the problem is that when the bigger cube lands, the smaller cube goes all the way down. Is there ...
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14 views

How can I see the coordinate/transformation change when I change the pose of a model?

For example, if I rotate the right forearm of my model in blender, how can I see that the model's forearm changed numerically?
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2answers
216 views

Select everything inside the UV 0-1

I have a problem that I can't solve on my own. I want to select (or in my case deselect) everything that's inside the UV 0-1 space. I have a specific workflow that I follow and all my objects are ...
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1answer
76 views

Update child coordinates relative to parent

I'm facing an apparently well known issue with Blender that was already described here. Basically, when I create a new object at world level and then make it the child of another object, its ...
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1answer
68 views

Copy light location in relation to object

I am just starting out with blender and could use some help. I imported an .fbx from Revit and it works great. I have some streetlights in this project and when i change one of them in blender then ...
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48 views

How to fix an image texture to object and camera?

I've looked for a similar problem but couldn't find anywhere, so here it goes. I'm having an issue with fixing the position of this image in the body of the sphere, as you can see, it leaves the ...
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1answer
71 views

Understanding axis locking and local coordinate systems

I'm having trouble understanding axis locking methods, specifically in regards to local coordinate systems. I have three questions about this topic. In most explanatory threads on the internet its ...
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1answer
100 views

Importing shapefiles with other CRS other than Web Mercator and WGS84_latlon

New to Blender. I have correctly installed and activated the BlenderGIS and the bpyproj addons. The GIS module allows me to add a new CRS searching by the EPSG number when I try to import the shp. ...
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1answer
31 views

Saving objects' coordinates as RGBA

I need to save multiple objects' location in XYZ as RGBA data on an image. The colors should match that of blender in metric, so if I move the object up 105.4 centimeters in blender, the color should ...
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1answer
20 views

Can I define a coordinate system based on a mesh, as generated coordinates are based on a bounding box?

I am making a procedural cloud based on CGMatter's which takes the shape of the mesh assigned the cloud material, with the added ability to 'shrink' the initial (pre-distortion) volume box so the ...
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1answer
125 views

How to Copy and Paste Vertex Coordinates?

I have two meshes that are almost identical to each other. Mesh 1 is a human head, and Mesh 2 is the same head but cut in half. (think no mirror modifier) Both have the same topology where it would be....
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58 views

How to get real location (coordinates) of an object

When I applying modifications like "Track To" or/and "Copy Rotation" to object, it location of the object on Numeric Panel (Transform) does not changes but the object really change ...
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36 views

Any way to automatically move every UV Vertex inside the texture bounds?

I model in Sketchup and sometimes I need to make a 3D model with a single material, and uvmap must be unwrapped inside XY boundaries. However Sketchup is randomly placing uv maps all over the infinite ...
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37 views

Procedurally convert other coordinates into UV coordinates

Is there a way to convert from any sort of 3D coordinates into any given object's UV coordinates? I currently have a setup like this: The node group gives me a 3D grid so it needs some sort of 3D ...
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26 views

Is there an input box for world rotation location?

I only see transform location, rotation (Local). How to influence world coordinate, by inputting number in pose mode?
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1answer
46 views

Get height value at specific x and y coordinate via script

It may be simple but I don't get it to work. I have ground objects and several other objects that should stand on the ground. These other objects are automatically positioned. The x,y coordinates are ...
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1answer
354 views

Python: How to identify (by index) the edge closest to a given location?

I want to find the edge index of an edge, for the purpose of performing some operation on that edge programmatically. If I know where that edge is in a simple mesh (for example if I know its Z ...
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1answer
216 views

How to make an object automatically take the same height as another object?

I am currently working on recreating a city in Blender. I have two 3D versions of this city: the first one comes from my lidar data, therefore it is deformed and very "raw". The second one ...
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25 views

Click on mesh coordinates in python API

Is there a way to get the exact coordinates where you click on a mesh in python code? Faces can be big, so the vertices are not really good enough.
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37 views

Need a function to determine an object's rotation axis, based on it's orientation

Working on a project with some Python scripting to allow users to flip an object on any axis, and then use a routine that will rotate the object along the circle as shown in the pic below. My problem ...
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0answers
40 views

How can I create a 3D model of the CIELAB color space? [duplicate]

My professor and I are trying to create and print a 3D model of the CIELAB color space for one of my Master's studies. He has provided me with a CSV of the color space's data points (which you can ...
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33 views

Babylon files to GLB skips UV's

I am wondering how does exchanging a BabylonJS file between 3ds Max and Blender works. When you receive a BabylonJS file you need to convert it in BabylonJS Sandbox to GLB The BabylonJS file has a ...

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