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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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Blender 3.4 coordinates in file unable to move objects [duplicate]

I just ran into this problem with an old file, where there are large coordinates in my viewport when I select an object, and when I try to move that object only the coordinates move and not the object ...
MarisaM's user avatar
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22 views

MPFB2 Rig Helpers Transform Differently for Left and Right Side of Armature

I try to translate an animated armature and found in Graph Editor that right side rig helpers translate correctly but left side's do inversely. What I do is, everything with default properties: In ...
lxndr's user avatar
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Get edges with subdivision modifier active?

I'm trying to get edges when subdivision modifier is active. Using depsgraph method gives the result as if the modifier had already been applied. ...
APEC's user avatar
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Yaw Pitch Roll of camera in local coordinate system

I retrieved camera properties from a bunch of Unreal scenes that I want to reproduce in Blender. The Unreal coordinate system is quite different: it is a left-handed one, cameras face +X instead of -Z ...
David Pagnon's user avatar
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Question about bpy's matrix_world to torch3d coordinate system conversion

From the visualization results, it appears that the camera pose I converted is not accurate. It has moved backwards. Is there have any suggestions ?QAQ 1.difference of cameras space 2 some discussion
Haitao Xiao's user avatar
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Absolute and Relative Coordinates; Camera Distortion; Calculation

Hello Blender Community, Question: How close is the object in the image? What are the absolute coordinates from the image's perspective? What is the error? An object: A frame with two reference ...
Miles Taylor's user avatar
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2 answers
52 views

3D axis are gone

The little 3D axis in the upper right corner were gone for months for me, I've tried everything with no results. I hoped that in version 4.0 it would be fixed but still nothing. I have all the gizmos ...
Kateryna  Mazurchak's user avatar
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1 answer
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Recreating clip space coordinates in Blender shader nodes

I've been trying to recreate the clip space coordinate system in Blender's shader nodes. From what I know, the only coordinate systems you have access to are object coordinates (position), world ...
LuigiTKO's user avatar
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Calculate the pixel location of an object in the rendered result

I'm implementing a simple script to calculate the location of an object (which is a 2D plane) in the rendered image: ...
Ta Thanh Dinh's user avatar
1 vote
1 answer
33 views

How to set the axis of blender so that it is consistent with the rotation direction of the sensor?

I am a beginner in blender. I use the serial port to connect the posture sensor with the blender. Now I have a problem: I rotate sensor around the Z axis, but in blender it rotates around the Y axis. ...
Handsome Fish's user avatar
2 votes
1 answer
84 views

How to add object coordinates to instance coordinates?

I'm trying to create infinite "Teleport Waves" and everything is going well until I try to move the teleport itself. Then the waves stay in place. My attempts to intercept the coordinates ...
arachnoden's user avatar
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Newbie question- Exporting X&Y screen coordinates of a marker to csv or Excel [duplicate]

super noob here, first time posting. I have a problem which I think you guys will be able to answer easily. I have several videos of an unbalanced disc and what I would need is to extract the vertical ...
Mikro1234's user avatar
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How to use .txt with 3D coords in BVH?

I have 3D coords from a hand mocap , the coords are (x,y,z), there are in a .txt list with 3 cols and each row represents a point. How can I transform them to BVH format? Any script, web, video or ...
Conspiques's user avatar
1 vote
1 answer
42 views

When I select the Donut object thousands of giant coordinate systems show up

I'm a Newbie in Blender. Now I'm learning Blender with the Donut Tutorial. I met a question today about the coordinate system. When I chose an object (Donut), then came a giant coordinate system, or ...
Bi Bi's user avatar
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How to export the point cloud coordinates created by the geometry node "distribution points on faces "?

Tried everything I could but cannot find a solution to export it in python code!
Mr. H's user avatar
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Object is not perpendicular to the axis

I have a model which is created by 3d reconstruction and the human is connected to the floor. I found that the human body is not in the same direction as the z-axis, as figure 1 shows. What I want is ...
Jin Gordon's user avatar
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30 views

I want to find the three-dimensional coordinates of the light hitting the surface of an object

I simulated the effect of a laser with a light, causing it to shine on an object, as shown in the figure. Now I want to find the pixel coordinates of the light bar after rendering is completed. Is ...
Vanc's user avatar
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Blender import camera from COLMAP has wrong direction

I have the image.txt files from colmap, which includes the quaterion(QW, QX, Qy, QZ) and the translation(tx, ty, yz). I use the following code to do the transformation, but the direction of the camera ...
Jin Gordon's user avatar
-1 votes
1 answer
253 views

Exporting X & Y coordinates to file

Im trying to export X & Y coordinates of certain object to file with this script I found years ago somewhere: ...
konstailematon's user avatar
1 vote
1 answer
60 views

Uv coordinates values seem to be placed on the wrong vertices

Let's say I have a simple plane in which I have created a UV with the "Smart UV Project": I've then created this simple script to put the UV coordinates (x and y position) on each vertex: <...
Goncalo's user avatar
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How to obtain vertex position and rotation data from a mesh made from geometry nodes?

I'm attempting to obtain location and rotation data on each vertex in a curve mesh that I draw on top of a shape, but I cannot find a way to export this information. For my project, I need the ...
JoshuaENGR's user avatar
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1 answer
57 views

Get the coordinates of the intersection between a line and 3d model

I'm new to Blender. I want to know if there's a way to get the coordinates of the intersection point between a given line and a 3D model, just like the picture below. Thanks!
Jin Gordon's user avatar
-2 votes
1 answer
291 views

Symmetry in sculpt mode is uneven

I am facing problem regarding the symmetry in sculpt mode version 3.3.10.0 . I even brought origin point to the center but still symmetry is uneven.
thanos's user avatar
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1 vote
1 answer
37 views

Symmetry axis is off center when joining

I am new to blender and still learning to navigate the interface. I am working on this model and my axis went off center after I joined the parts of the model. Now I can not work on the model ...
Raphael Mokora's user avatar
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1 answer
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Geometry Nodes: Set Curve Line end at Global Z=0 (Blender 3.5.1)

I'm trying to use geometry nodes to create a support system for 3D printing with a thin wall as the connection point: What I want to do is have columns going from the B points down to the floor at ...
Cornivius's user avatar
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2 votes
1 answer
319 views

Mapping Real World coordinates on 3D model of Earth

complete Blender noob here. I've worked with other node-based programs in the past so the geometry nodes seem (for the most part) intuitive to me. But Blender is obviously a different kind of beast... ...
Sascha's user avatar
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2 votes
2 answers
284 views

How to position numbers on faces

I want to position numbers on a die, and looking for an efficient technique to do that. My current approach is to copy Median XYZ of a face to coordinates of an object, can I do it in at once, instead ...
ʈɦɘ ʙɑɕʞ's user avatar
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1 answer
406 views

Script to import coordinates and create a bezier curve

I would like to create a script to import coordinates from a CSV and create a bezier curve along these coordinates. I have developed a script that imports the coordinates, but it creates a curve along ...
blenre231's user avatar
1 vote
0 answers
66 views

How to Snap Cursor to Selected, but accounting for the Modifier result?

Snap Cursor to Selected places your cursor at the selected vertex of your mesh (or the mean of multiple selected vertices). The trouble is that sometimes the vert ...
Mentalist's user avatar
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319 views

Get vertex coordinates of model mesh in every frame of animation

I am trying to get the coordinates of all vertices of a model for each frame of an animation in Blender using python. I have seen a lot of answers from 50 years ago like Iterating vertex of every ...
nickp3065's user avatar
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1 answer
556 views

Geometry nodes: get line's point global coordinates

Somebody, help me please. I want to bend the curve at any point. So I separate it into two parts and than I try to rotate one around the point of separation. But I cannot get the correct coordinates ...
Inversus's user avatar
1 vote
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332 views

How to get coordinates of intersection between a plane and an object (using python API)? [closed]

Like showing above, I would like to get the coordinates of intersection between an object and a cube(the cube also could be a plane). That's to say, I want to get the intersection coordinates in the ...
sdsy888's user avatar
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1 vote
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221 views

How to get the pixel coordinates of a rendered object

I want to render an object (plane) and want to know exactly where this object is in the image. To do so, I discovered this answer which was already quite helpful. Here the code I use, based on the ...
AMGEBEE's user avatar
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0 votes
1 answer
303 views

Morphing 3D objects with Coordinates using Python/Geometric Nodes

I really need your help. I am looking at morphing, say a cube into a sphere. I wish to do this by scaling/transforming specific points of the cube to new points (with coordinates) in order to form a ...
O I's user avatar
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1 vote
1 answer
483 views

How to correctly convert from world to camera space using convert_space()?

I'm trying to use the python API to get the transformation matrix from world space to camera space. I want to do this by using convert_space() but I don't manage to ...
Marc's user avatar
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1 answer
377 views

Selecting vertices of a mesh using vertex coordinates

I have two meshes: (A and B) that are partly overlapping and have some vertices with different indices but the exact same global location. I would like to look at the vertex locations of mesh A and ...
Alex22's user avatar
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0 answers
58 views

Display and animate object in local axis

I would like to rotate an object along one on its local axis ; while I can do this via the viewport by selecting Local orientation, I would like to set keyframes using the Transform panel. However the ...
Laurent Crivello's user avatar
1 vote
0 answers
172 views

Getting the global coordinates of a vertex from mouse location

I have a some code here that I combined from other people to test out implementations on how to get the correct global coordinates of the vertex that your mouse is hoovering over. There are 2 ...
PoseCrator's user avatar
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91 views

How can I change the coordinate of part of an object to change the coordinate of all objects?

Imagine I have an object which is a vertebra with some markers on it. When I go to the edit mode and select each marker, I can easily see their coordinate of them. Now, if I want to register new ...
Reza Effatparvar's user avatar
1 vote
0 answers
323 views

How to get/copy pixel coordinates or rgb values from 2d image, in compositor editor?

Many times, i need to get and copy pixel coordinates (as well as rgb values) from the composite 2D image in the backdrop or image viewer. i can see it from the image editor by clicking in the image ...
uriel deveaud's user avatar
2 votes
0 answers
407 views

3D world to 2D image transformation with equidistant camera model

I'm currently implementing a simulation, where a 3D point needs to be transformed to a fisheye image with the equivalent of Blenders 'PANO' camera and the equidistant camera model. Does anyone know ...
Roman's user avatar
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1 vote
2 answers
349 views

Distribute pointed objects on a curved surface with random orientation and constraint

I am trying to put objects with random orientations on a curved surface, however the orientations must be limited to directions pointing away from the surface, thereby, avoiding clipping the surface. ...
WiseKouichi's user avatar
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0 answers
59 views

Import UV Mapping on mesh

i would like to import a uv mapping coordinate to a mesh, but the code didn't work, cause there is an error on Blender 3.3: File "C:\Users\Marku\Desktop\Blender Plugin\uvw.blend\Text.001", ...
Max_Ghut's user avatar
0 votes
1 answer
177 views

How to move an object in relationship to a specific vertex numerically?

I am coming from a "2d-world" like Adobe Illustrator where I easily could move objects in relationship with their "corners" numerically. How do I do this in Blender? Let me explain:...
Tommy Rypi's user avatar
0 votes
1 answer
295 views

Get the actual position of bone (head and tail) even when armature is rotated

I would like to know if it is possible to get the real coordinates of a bone's head and tail when the armature is rotated. I already got something working with translations of armature but can't ...
Guigz's user avatar
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1 vote
1 answer
125 views

Satellite rotation

I am trying to make the rotation of the satellite around the Earth. I'm obtaining the satellite's position in the orbit from TLE elements and getting the XYZ of it. So moving along the trajectory (...
Viktor's user avatar
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1 vote
0 answers
34 views

Is there a difference between local and global sizes? [duplicate]

So this is a bit of a "hard to formulate a title for" question, but the thing is, i have two mesh objects. Both of them sit at the same position in Z when i select them in object mode and ...
ozr2222's user avatar
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1 vote
0 answers
63 views

How to set the origin before adding a mesh?

How can I set the origin to the end of a mesh before adding it? For the moment I'm struggling with the overhead of calculating the center of each object's appropriate axis in order to get it properly ...
jjk's user avatar
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1 vote
1 answer
864 views

What is the fastest way to set global vertices coordinates to a numpy array using bpy?

The fastest way I know to get the vertices coordinates from the mesh is to use .foreach_get() method: ...
Andrey Sokolov's user avatar
2 votes
3 answers
655 views

Align cylinder center with edge

I've been trying to solve this problem for days now and i'm stuck. I want to align this cylinders center line with the selected line. I tried to use the location information/coordinates of the line ...
enn's user avatar
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