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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24 views

Geometry Nodes - Selections from A Variety of Collections Based on XYZ Index values

I'm trying to understand Geometry Nodes in 3.0 by doing my own modular generator where instances are being generated from a simple base mesh object (see image above) that is then put through a Remesh ...
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Z and Y coordinates are swapped, regardless of the transform orientation?

Whenever I try to resize an object locked to Y axis, it resizes what used to be Z axis. I cycled through all of the transform orientations, but the Z and the Y axis are still swapped. I'm using ...
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15 views

Vertex Coordinate Values in Global positions?

I've been using Blender 2.7 for a number of years, and I get very specific with my vertex locations by setting the transform XYZ to Global numbers instead of local. This has allowed me to make very ...
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1answer
28 views

How to apply texture based on normal coordinate?

I'm working on a project where I need to place two different texture one on the blue side and another on the pink side based on the output of Normal Coordinate from the Texture Coordinate node (See ...
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1answer
14 views

UV unwrap changes Material thats Using uv coordinate

So I made this plant and I wanted to join it into 1 object, uv unwrap it and export it with a baked texture, but the problem is when I uv unwrap it the material changes (because Im using a texture ...
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How to calculate the rendered Blender freestyle stroke coordinates

Is there any way we can access the coordinates of the rendered stroke as we can access for e.g Cube mesh. Since we can see if we enable blender freestyle rendering, it does the stroke rendering based ...
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2answers
113 views

How To Move All Selected Objects To A Specific Z Value?

Currently if I select a group of object and change the Z value it only move the object I originally selected. Is it possible to change the coordinates of a certain selection of objects of different Z ...
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13 views

Manage files with geographic coordinates

I need to import meshes generated by laser scanner point clouds into blender. The meshes are georeferenced with UTM coordinates. Do I have the possibility to import the georeferenced meshes in Blender ...
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1answer
24 views

I can not move/scale/rotate my object, instead a coordinate system from the object moves/scales/rotates [duplicate]

I am very new to Blender, but am already stuck at a point. When moving an object, it does not move the object, but a coordinate system from the object. The same goes for rotating and scaling. I could ...
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26 views

Get vertices positions in an animation

I have an animated character with bones. In its frame, there is an Eyes object that interests me. I want to know its position in my render during the whole animation. I can have its position (the one ...
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2answers
53 views

Animating grid lines forming into a big grid

I am trying to animate lines into forming into a big grid something similar to this: https://www.youtube.com/watch?v=LPwP_CPVwqM How can I achieve this type of animation? At first I was thinking of ...
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2answers
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Display childs local coordinates to parent

I don't get Blender's parenting system. I have a cube at location 1, 1, 1, create a new sphere at 0, 0, 0 and use the Make Parent command with ...
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0answers
40 views

Adress and select specific triangles of a stl data set

Dear Stackexchange community, I'm a beginner in Python and Blender. In general, we work with STL-data. I found a python code, that could parse the coordinates of each triangle (one scan data-set ...
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1answer
42 views

OBJ import coordinates

Importing OBJ files in blender gives positions that don't (textually) match the .obj file. That is to say, a vertex that has position ...
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1answer
50 views

How can I get the global coordinates of joints or bones of a skeleton during animation? [duplicate]

I want to get the coordinates of joints of a skeleton. The following is the main code I used. ...
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0answers
18 views

How to describe an object in the camera reference frame?

I have an environment with a sphere, a camera and the sun. Both the camera and the sun track the sphere, such that they point always to the sphere. All the coordinates are referred to the origin of ...
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23 views

Vertex coordinates of selected vertices not updating, but indices update

I am writing some code that selects the end vertices of an open tube, and then saves the indices and coordinates in a list so I can use these points to bridge edge loops. ...
2
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1answer
44 views

Half of the scale value not in the middle

I just tried starting with Blender by scaling a cube with the values x=20,y=20. Afterwards I tried to move the bottom left corner to the origin by changing the location by half of the values (10,10) -...
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1answer
30 views

Getting baked animation values using python while preserving editable animation

I'm trying to use python to get world space location and rotation values of an animated camera, including transformations applied trough parents and constraints. I need the Values as XYZ coordinates ...
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0answers
17 views

Help with local coordinates with parents, constraints, and drivers [duplicate]

I'm trying to make a wheel rotation system using drivers https://youtu.be/3mIrbZb-ZQQ I have tried to fix this with drivers, constraints, and parents, all of them do the same thing.
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1answer
35 views

Can you use .cub files in blender?

I am looking into a research opportunity with my college and my professor explained to me that he uses a application called Multiwfn and it produces a large txt file of coordinates, I was wondering if ...
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1answer
56 views

Get pixel coords for vertex in viewport

Is it possible to get the screen XY coordinates in viewport for a vertex in orthographic view? I get pixel locations as per a previous answer like this: ...
3
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1answer
70 views

Bend a flat gradient without distortion

I am trying to make some shapes out of object coordinate vectors. I want to take a linear gradient (the X, Y, or Z) and bend it an arbitrary amount around an arbitrary point without distorting it. ...
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0answers
27 views

how to iterate over the connected vertices sequentially of polygon?

I have a map where each country is a polygon of many vertices. I want to get an array of coordinates of the vertices of a polygon. Now I get and save the list of selected vertices in the table in edit ...
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changing the coordinate system of imported 3D stl

i am an oral and maxillofacial surgeon. when i import models from the impression of patients teeth it is imported in the 0 position of the coordinate system. when i immport models from segmentation ...
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2answers
45 views

UV cube projection preserving vertex coordinates

When I apply "UV > Cube projection" it centers all the islands somewhere around (0.5,0.5) UV coordinates. I'd like, however, to preserve the the local vertex coordinates. For example if ...
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2answers
145 views

Getting vertex coordinates with applied shape keys

I'm trying to write a function that returns vertex coordinates including their transformation that was a applied by (one or multiple) shape keys. Currently this is how I tried, but I only get vertex ...
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1answer
106 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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0answers
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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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76 views

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
35 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
37 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
78 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 ...
5
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1answer
259 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 ...
6
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1answer
165 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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44 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
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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
1k 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
47 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
46 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 ...
2
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1answer
27 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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0answers
13 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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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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0answers
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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
86 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
349 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
184 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
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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 ...
3
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1answer
598 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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2answers
285 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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