Questions tagged [units]

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64
votes
2answers
21k views

How do blender units and meters, feet, or yards correlate?

If I'm using blender game engine, how do blender units work in relation to gravity, acceleration, or weight? Is there a rough physical world equivalent?
11
votes
3answers
7k views

How can I use imperial units when entering measurements?

I've set my units (UnitSettings.system) to Imperial in Properties → Scene → Units. I can now see my measurements in imperial units. For example, I see ...
11
votes
2answers
2k views

Blender units vs metric

I just started getting into 3d printing. At first I scaled my models down to a few cm tall in blender, but found them nearly microscopic at print time. After some fiddling with netfab, it seems like ...
10
votes
1answer
2k views

Digits of precision of vertices coordinates

Vertices coordinates are float or double values ? Is it possible to see them with full precision and not only with the limited precision of the text fields ? Or better is it possible to see the bit ...
9
votes
2answers
14k views

Ideal camera settings to approximate human eye?

As far as things such as Focal Length, Sensor Size, etc., what are the ideal camera settings in blender that most closely approximate the human eye? Right now, everything in my scene seems like it is ...
8
votes
1answer
4k views

How to measure face size in meters, centimeters or any units which is set?

How can I measure the size of a face in edit mode?
8
votes
1answer
2k views

How to show more digits in blender when working at a small scale

How can I get more digits in the user interface for modeling. Of course we can scale up the scene always, but that is just annoying, I like to work in millimeters for example which is possible with ...
8
votes
1answer
29k views

How to change the grid's length values? [duplicate]

I have a model of a gear that should be in the millimeters but when I scale it to that size it becomes so small that I can't zoom in to see it. Right now the grid is in metric and each grid is 1m x 1m ...
8
votes
3answers
1k views

How to calculate specific liquid volume?

I'm new to Blender and have a question regarding modeling of realistic scaled objects. I'm modeling a complex shaped bottle and I would like to scale it (using metric values) to hold a specific volume ...
7
votes
4answers
5k views

Why is Blender's default cube 2 cubic meters instead of 1?

I had a very frustrating experience with Blender's UI. In the transform section there is location, rotation and scale and I thought scale would be dimensions, which I found out later it is not. Now I ...
7
votes
1answer
32k views

Modeling with metric units (cm)

I want to model a cover for my key with exact proportions in centimeters. What tool I should use and how should I do that?
7
votes
1answer
1k views

Does the setting for domain size make a difference if the units are set to something other than None?

I've been trouble-shooting a fluid simulation and something that kept sticking in my throat was that my Fluid World scene size was set to 0.5 meters when my domain was actually much larger than that. ...
6
votes
1answer
1k views

Move object in inches instead of feet?

Whenever I move an object in blender in unit mode(Imperial), it always make it in feet. For example, if I type G Y 12, it will move 12 feet. How can I make it move 12 inches instead?
6
votes
1answer
90 views

Is there a way to “unprotractor” a mesurement with the ruler/protractor tool?

I sometimes accidentally protractify a measurement when using the ruler/protractor tool. Pressing ⎈ CtrlZ does nothing (I guess being a model operator it doesn't have undo implemented). Is ...
6
votes
1answer
2k views

How to simulate a real camera with blender

I have a camera with a fisheye lens. I need to simulate it on blender to get the same images camera properties: sensor size: 2/3". image resolution: 1360*1024 fisheye focal: 1.8mm H*V (FOV): 185*185 ...
6
votes
1answer
2k views

How to lock texture tile size while painting?

I am a new to the blender. While I was painting texture to the mesh surface, I noticed that if I move camera(view) even a little bit and paint again, the new painted area texture tiles are different ...
6
votes
1answer
4k views

What is the unit of measure with the ruler tool?

When I use the ruler tool, it gives a very accurate reading, with many numbers past the decimal point. However, what am I reading? Is it giving me this in meters, centimeters, inches? And is there ...
5
votes
3answers
2k views

Translating or extruding in inches

How can I translate or extrude something in inches? If I hit E or G then type a value, it's taken as feet, and if I try to type in ", it's simply ignored. I live in metric land, but I do understand ...
5
votes
1answer
604 views

Is there a bpy function to convert from blender units to Imperial?

Is there a bpy function to convert from blender units to Imperial? something like: >>> blender_to_imperial(2.0) ... 6.562' This functionality is ...
5
votes
1answer
440 views

Why do we apply location, say after we moved an object

Why do we apply that location. If I have multiple objects in blender, I can relatively see each coordinates, and add new one based on existing. If I reset all will be zeros, so nothing to compare.
5
votes
1answer
954 views

How would I scale an animated scene? [duplicate]

I am making a new animation for a company, based on their previous version that I have received. The previous version is at some arbitrary scale, but since I am updating and adding geometry (new ...
5
votes
1answer
521 views

What is a sensible scale to work with?

I know the unit in Blender are arbitrary, e.g. you can have one unit represent 1cm, 1ft or 1 mile. I'd like to know if there's an advised (community or otherwise) scale that I should work to. Are ...
5
votes
1answer
477 views

What does 'Cube Size' mean when using Cube Projection UV unwrapping?

I don't understand how Cube Size is handled when doing a Cube Projection. Here is my example scene: my cube is 1m by 1m, applied rotation & scale, so its just a clean, perfect and beautiful 1m ...
5
votes
1answer
737 views

Can I use blender to create a model and 3D print it for some real device

I want to create a 3D model which can be used in real life. When given some real life dimensions, can we make models in blender with the exact same measurement down to the millimeter? For example I ...
4
votes
2answers
9k views

How to make the measuring grid larger?

When starting the blender, there is always a cube on the floor. The floor is actually a grid. My question is how to make this grid bigger so that we can measure big stuff?
4
votes
1answer
7k views

Where did object dimensions go in 2.8? [duplicate]

Anyone seen this panel? Essential for precise modeling.
4
votes
1answer
920 views

Changing the units in blender breaks camera view

I changed the scale in blender so exporting to unity would be less of a hassle. I followed this tutorial to do it: https://www.youtube.com/watch?v=ZnAb1w-Dmuc. The problem is that after changing the ...
4
votes
1answer
504 views

How can I change the snapping?

I put snapping on, but would like to snap objects with increments of .6 meters(60 cm). is there a way to change the snapping? I am working with lego bricks I brought in from Ldraw. Since ldraw ...
4
votes
2answers
2k views

What units does the cycles SSS scattering radius use?

As a sort of follow-up to this question, what units does the scattering radius use on a cycles subsurface scattering shader?
4
votes
1answer
2k views

How to stop Blender from slowing down zooming and panning?

I am working with Unreal Engine so I have entered unit scale of 0.01, and now I have realized that when I want to zoom into an object, it gets really slow well before I reach the object's surface. Is ...
4
votes
2answers
489 views

Blender unit conversion without scaling relative to the scene?

I'm a fairly new employee and Blender user (long-time Maya user). I may have gotten myself into a bind and hoping you all can help me out... As a new employee, one of the first things I asked was ...
3
votes
3answers
10k views

Can the scale tool show me the real size of the object instead of a 1 - 0 scale?

when I resize I want to see the real width\length\dept of the object instead of the x=1 y=1 z=1. Is there a way to do this?
3
votes
1answer
216 views

large scale modelling, numeric problems?

I would like to create some models on the scale of 1-10k blender units. I remember reading somewhere that modelling on that scale can cause numeric problems. Is this correct?
3
votes
1answer
528 views

How can I force input to be interpreted as millimetres instead of metres?

In Sketchup for example you can chose default unit. If you chose cm, you type in 17 and the line will be 17cm. Or you can choose to type in 1.7 and the line will be 1.7cm. Or you can change to metres ...
3
votes
1answer
865 views

Can I change entire scene scale?

Let's say I created some objects without regard to their actual size. Is there a way to set the scale of the scene such that nothing actually changes other than what blender considers the size to be? ...
3
votes
2answers
3k views

Blender Loop cuts and vertices measurement

I have some problems when adjusting loop cuts and when I extrude the vertices of loop cuts. When I do a loop cut I would like to place the cut at the position of an exact millimeter. I have in the ...
3
votes
1answer
247 views

Ruler disagrees with vertices

I select a point in edit mode, and it gives me some reasonable xyz Vertex values in the "Transform" area (for example 955, -455, 100). I select another point and I also get reasonable values (for ...
3
votes
1answer
977 views

Location of object wrong?

So I just realized some strange stuff is happening when i export my object, and I realized the original object made in blender is not at center, but the weird part is that its origin is at the center ...
3
votes
1answer
585 views

How to make gravity respect the scale in Scene > Units?

I need to assume 1 BU = 1 cm, for use with Unreal Engine. That's because I can't use the FBX exporter's "Scale" value - it's not recognized properly in Unreal. In Scene's settings, I chose Metric and ...
3
votes
0answers
184 views

How to setup scene for Isometric workflow? In order to import 2D ISO image to make it in 3D

You know we can make 2D isometric renders of 3D images, right? I want to do the reverse; I import an isometric image and want to use it to create the 3D model. An illustration of the work I'm trying ...
2
votes
1answer
520 views

Blender Suggestions [duplicate]

Where exactly can I discuss/suggest ideas/areas where improvement could be made? The problem I am having is finding a place among all the various sites where I can actually submit a suggestion. Can ...
2
votes
1answer
121 views

2 = 1 Why are values I enter in Blender getting halved?

After I enter a value of '1', it gets divided by '2'. Why does this happen, and how do I get rid of it? This happens everywhere where I enter a value. Enter '4' it becomes '2', enter '16', it becomes '...
2
votes
1answer
11k views

Why is my object in blender bigger by approximately a factor 10 than in my CAD program?

I export my CAD models, which I create on Creo 2.0 (originally called Wildfire 5.0) as STL files, and import them into blender. But when I compare their sizes, ...
2
votes
1answer
28 views

Does Blender has input Degrees, Minutes and Seconds?

How can I enter angles in Degrees, Minutes and Seconds in Blender? for example : 30º 23' 45 "
2
votes
1answer
41 views

cycle units measurement through hotkey is it possible?

i find imperial is much easy or convenient to setup with camera distance from object a to b and eye level height i want to set a hotkey that cycle through units ( metric , imperial ) hitting same ...
2
votes
1answer
935 views

Scale plane to size of grid element

I am trying to make my plane exactely the width / height of a grid cell. I thought I could do that by clicking "Snap Element"->"Increment", but that does not do anything. Can anybody tell me what I am ...
2
votes
2answers
1k views

Depth in meters for rendered images

How can I get the depth in meters? I need the "real" distance from the camera to each pixel. As the next picture but each pixel values representing the distance in meters to the camera. I am ...
2
votes
1answer
1k views

Render Blender's object with size defined in pixels

Let's say I have a 3D scene in Blender - I need to make an orthographic image where 1 Blender's unit will be exactly 1 pixel. Camera from above the scene, looking down (vector (0, 0, -1)). Please don'...
2
votes
1answer
417 views

How to make Blender remember STL export settings as default

I model in millimeters inside Blender, for 3D printing. Every time I want to Export STL, I have to untick Scene Units and change the Scale to 10.0. These settings ...
2
votes
1answer
271 views

How can I ensure a minimal precision of 1cm in my project?

I'm working on a project for some architects. I have following requirement: The maximal allowed error is 1cm. Many people will work on that plan for some years. I think every Object/Vertex may be ...