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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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How to add two shapes coordinates?

Ok. Imagine yourself that I have two grids with the same amount of vertices. I sulpt a face of a man out of one of them. On the second one I sculpt a big "Z" letter. How can I combine those grids ...
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How to animate an object rotating on its own axis?

I want to animate a planet spinning on a slight tilt, like the earth does. I want to use a generator (in the graph editor) to have consistent, procedural motion, but animating any single axis of ...
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How can I export STL->OBJ without the coordinate system getting messed up?

We use a 3rd-party tool which generates STL files with a specific medical coordinate system (either RAS/LPS for those interested). Our software can only load the 3D meshes in OBJ format but whenever ...
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How to write python to show Toruses from an imported txt file containing center coordinates

I have a question about Python. By the way, I'm beginner of Python and English. I wrote a script showing Toruses from an imported txt file containing center coordinates, but I got an error at ...
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Vertex coordinates in console are slightly different than in the UI

If I have a default cube, dimensions 1 meter on each side, and I run a script to output the vertex coordinates to the console, they print correctly (i.e., the values are either 0.0 or 1.0). However, ...
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28 views

Convert Cycles depth/z to distance to image plane

I want to simulate a depth sensor with Blender Cycles, but the z-pass returns the length of the sight ray and not the distance to the image plane. Here is a formula to convert the depth map, but I am ...
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32 views

Change pivot point to selected point [duplicate]

In the attached picture, that the model is in the center of the point. I want to change from pivot point to point, where I want to picture it. In Maya 2017 Student version works like this, when it is ...
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Bone scale vs vertex scale

The vertices and the bones seem to be working with a different coordinate system. In the image, the bone and vertex at roughly the same height are mis-scaled by a factor of 40. When I export it into ...
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How to translate plane coordinates x,y to equirectangular?

I have a procedural texture with a circle made by formula X ** 2 + Y ** 2 < R ** 2. It looks like a circle on a plane. But if I try to use this formula in the World environment - the circle is ...
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291 views

How can I export or print coordinates of each selected vertex?

I am pretty new to Blender. I need to get coordinates of each selected vertex somehow. I don't really want to manually copy coordinates of each and single vertex that would just take a lot of time. I ...
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378 views

How do I generate pixel-art friendly UV maps?

Here and here, you can see examples of what I'm trying to do in terms of texturing. The UV maps shown for these models appear to be very clean and uniform, pixel-friendly and keep distortion/artifacts ...
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Local translation with pivot point established on the active object

Whenever i try to translate objects, with pivot point established on the active object, every object translates in their own local coordinates. Video will explain it better: youtube.com/watch?v=...
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Coordinates of the segments of the hair particle

All Hair Particles are based on Vertices. I activated the option in ParticleSystem "Advanced" and switched to Verts. A hair has 4 segments. I would like to read these segments per hair as coordinates. ...
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How to add a certain number to an object's coordinates

I'm currently making a first person game in BGE. I animated an action for the camera of slowly going up and down to make the walking more realistic. I added it to the player's logic, but instead of ...
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How to show global location coordinates

How can I see the global coordinates of a bone? Blender only show the transform for local coordinates.
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58 views

Compute object's foreground mask in screen coordinates

For a research project I am using Blender's Python API to generate some simple random scenes. In addition to the generated renders, I need to acquire a 'foreground mask' in screen (image) coordinates ...
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Placing cameras like a triangle

I am trying to place the cameras in a equilateral triangle fashion. But, I am quite not sure if my coordinates are correct. How do I find co-ordinates to arrange them in a equilateral triangle? Thanks ...
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Display coordinates in render output

Is it possible to write into some kind of a label data from the Object properties? I.E If I move a cube in the 3D space, can I write down on the rendered output the cube's coordinates on every frame?
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How do I get the object to the ground floor grid?

I have an object that is far away from the starting point grid. When I Add a Bezier Curve, it is on the grid and switch to Top view, it is too far away to see and manipulate. How do I get my object in ...
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Texture smearing using Object Texture Coordinates

I'm trying to apply textures to a building model, and I want them to be a consistent scale & orientation. Various searches have told me that using Object Texture Coordinates allows this, and so I'...
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Snap an empty to a bone's coordinate, quickest way?

I'm doing a ragdoll system with lots of rigidbody constraints. I use empties as constraints, which will be snapped to the location of a bone. The problem is that my armature has too many bones and I ...
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1answer
86 views

Script for getting Camera Look At co-ordinates

(I'm new to Blender) Using a script, how can I get the an X, Y, Z set of co-ordinates showing me where the current camera is looking at? My use case is that the user just moves the camera visually ...
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36 views

Generated UV Coordinates

How do i generate uv coordinates like the one in the video for my 3D file? This is for mad mapper and projection mapping. https://vimeo.com/206555850enter image description here
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Change z location in pose mode cause object move horizontaly

Blender has z-up coordinate system, but when i change z-value in pose mode, the mesh do not move up or down
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1answer
35 views

Local Coordinates Assignment

I have a modeled SCARA robot in blender, this is moved through the use of a sensor and a python program. The problem now is that my inverse kinematics solved angle does not coincide in run in blender. ...
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Assign Local Coordinates in blender object

Hi can I ask if anyone here know how to assign local coordinate system on blender object. I want to apply it in my inverse kinematics of the robot arm. Thanks
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How to change the Coordinate Reference System of a model to align with another?

This is my first question on Stack Exchange :) I just can't figure out how to align two models based on different Coordinate Reference Systems (CRS). This is an imported DXF file based on Amersfoort ...
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65 views

How to get a Fresnel node to only affect one part of an object? Ie) The top of an object

Just had a quick question. In the image below, I am trying to get dust to show up at only the white parts of an image. I am trying to get a PBR dust effect where when you look at it, at an angle, ...
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46 views

Camera coordinate appears to be left handed

It is weird that I have a camera that has a left-handed coordinate system. All the other cameras are right handed. Left handed camera: Right handed camera (all others are right handed, too): I can'...
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How to fix the movement of an object?

There is a UV movement script. I need to make this script run only if the object moves in space. If he stands still, then UV should not move. I suppose we need to compare the coordinates of the object ...
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1answer
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Why doesn't my script work on all of the vertices of a mesh?

So, I wrote this script to read UVs from a mesh and use the values to position the actual vertices on the same coordinates, but in 3D space, here's the script: ...
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1answer
164 views

Cycles: Generate 3d coordinates before modifier stack is resolved

Im trying to create a volumetric material that uses a 3d texture. I need this volumetric to be animated along a curve. Right now, I have the material using generated coordinates. But the 3d texture ...
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animate rig with 3d coordinates

I have frame-by-frame x,y,z coordinates for each joint of a human skeleton. How can I use these to animate a rig? The coordinates aren't perfect so the length of the bones may vary slightly throughout ...
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How to get the location of an object relative to another one?

I'm writing an addon, and I need to be able to tell whether object B is located at position (x,y,z) relative to object ...
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1answer
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Why does number of coordinates increase after deformation?

I applied several deformation on grid, and exported it as ply file for each deformation. However, the number of coordinates increases as the deformation becomes intense. Is there any way to apply ...
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How to reproject a rendered image onto a plane intersecting camera's view?

I am trying to mimick the process of mapping an 2D image onto a 3D surface (or "orthorectifying" for aerial/satellite image). The set-up is the following: a ground plane (in green in the figure ...
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231 views

UV Mapping, XZY coordinates to UV coordinates

I'm kind of new to this and found myself having issues wrapping my head around UV-mapping. (also not 100% sure if this is the correct forum for my question) I am working on a small rendering engine (...
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177 views

Copy and paste X, Y and Z values

In Blender 2.79 there is a new option that allow you to copy all the transform values (x, y, z) at once in the N-menu with CTRL + ALT + C for copy and ...
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Blender 3D objects are shaking in viewport when it's too far from center

If you place any object in the viewport really far away from the center and start to rotate, it starts shaking/giggling... Does anyone know how to solve this problem by not moving objects to center? ...
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Why lattice coordinates differ in edit mode when selected?

Sorry, yet another question about lattice from a beginner... Consider a scene with a mesh (say, a default plane) and a (default) lattice. Let's run the following script in edit mode and in object ...
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243 views

Armature Bone Global Local coordinates python scripting

I'm writing a Python script to move a bone of an armature to a desired Global 3D point. When armature has only one bone my function works well, but when I add not connected bones, there seems to be an ...
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1answer
47 views

My global axes got rotated

My global axes are not not level anymore. How can I reset? So I don't mean an object, but the actual coordinate system.
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Create 3-D model from x y z data points [duplicate]

I am very new to Blender(just installed it). I have a txt file with data as follows: x [tab] y[tab]z [tab]c x [tab] y[tab]z [tab]c x [tab] y[tab]z [tab]c and so on... applying some function on f(...
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1answer
439 views

Positioning object to the center of camera view in 3D scene?

How to position an object to the centre of camera’s viewport in the scene (for example position camera wherever you want and toggle preview of it by pressing NUMPAD 0). So basically position object to ...
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1answer
97 views

Print Rotation Matrix From Variable?

So i have these variables that search for the active object's coordinates. ...
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1answer
43 views

Round the coordinates of a model that outputs to a text file?

Alright I have this: ...
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1answer
125 views

How to get a right click coordinates in 3d_view

I'm listening to the right click in my model operator. I wish to get its 3D coordinates in the 3D_view. I've tried the following code from here: ...
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What exactly is the center coordinate of the blender camera (cycles)?

This is related to this question: What is blender's camera projection matrix model? In the answer of this question, it is stated that the center coordinate of the blender camera is given by <...
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Python: Generated (Orco) Texture Coordinate to 2D Image

Summary: How to sample/evaluate a procedural texture using Generated (orco) texture coordinates, such that the resulting image will affect the object identical to that of the procedural texture, when ...
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1answer
89 views

Blender Cycle's z-coordinate vs. camera-centered z-coordinate (orthogonal distance)

Rendering a scene and writing the 'Z-buffer' into an EXR file using 'Blender Cycles', I get a depth map. That depth map differs from the depth map which is produced by 'Blender Render'. Given its ...