Porportional scaling of imports to correct size

When loading floorplans or other drawings to Arkio these often include dimension references that can be used to correctly scale the object in Arkio. The easiest way to scale objects is to load them in the correct size on placement in Arkio using the correct unit or size input (images) in the create>Import tab.

If this does not result in the correct size (visible when placing a person in the scene) you can also manually scale the objects by grabbing the corner of the drawing or 3D objects bounding box with your controller or the edit tool and scaling it proportionally using the diagonal guide line.
The diagonal scale edits will also snap to increments of 0,1 and 1 for easier decimal size corrections.

If you know the object’s approximate dimensions you can model a volume in Arkio with the correct size and scale the other object proportionally until it matches the size of the approximated volume. In case you have a more complex object it can help to focus on a smaller element inside that model. For vehicles, tires are often an easier reference that can help guide the correct size. It can require some back-and-forth edits to correctly size objects like this in Arkio but it’s more intuitive than scaling the objects in traditional modeling tools.

When working with floorplans you can use a similar trick and first model a volume in Arkio with dimensions shown on the drawing. Using that object you can pick up and reference the scale of the drawings by dragging the corner proportionally to match up that drawing to the element.

One of our users recently asked us about this and we see opportunities to further enhance the scaling in Arkio in future updates using size inputs. If you have any questions about workflows let us know so we can make it into a guide that can help other Arkio users!

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As a total noob, it’s exactly the kind of information that makes a big difference. Many thanks!

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Even though I imported the plans at the correct scale, carefully cutting the image to the right places so a round value could be used for example. And then using the measuring tool confirms that all dimensions match when I was moving around inside the model the scale was off. A 80cm wide dor felts like a 50cm width….

Is there a trick so one can feel the correct scale in VR? The dimensions are right to the centimeter, at a 25 meters quote for example, but it feels that everythng is smaller inside VR.

I even measured my room and draw a room of the same size and it felt smaller inside VR…

Hi Bruno,

Perception of scale is highly dependent on your active scale in Arkio, which can accidentally be adjusted with your controller grips. If you see the correct dimensions in Arkio but still feel something is off, you may not yet be in a human scale. When you teleport down into your model, you will always be at 1:1 scale, so that’s a quick way to confirm you are at the correct 1:1 human scale.

If you have an MR headset like the Quest 3, you can also teleport into the model and align your floorplans or 3D models to your real environment, as passthrough will allow you to validate your correct perception of scale vs what you loaded or created in Arkio.

Let us know if you have more questions about this!

Yes, I did confirm that I was at the “fresh” teleport. The import is correct, I can confirm by the sizes of the created walls if compared to the quotes or even the measuring tool. Even without touching the grab/scale control the feel of scale is off.

I took as a reference a strandard 80cm door. They feel like 50cm wide in VR. Then, instead of creating the plan from the reference I recreated my room, from measurements. It also feels small.

I have a Quest 2 so the AR part is not very good. I am worried because I am using Arkio to “try” my architet layouts and they where all feeling too small until a noticed that was not the case.

The imported plans where from a PNG tht I generated directly from the CAD and cut the image precisly at the correct area size (14m x 25m) so when I import it inside Arkio I can set the scale precisely.

I will try the AR tool to transform my room directly and check again today. I will recresate my room using Quest tools then import into Arkio and use the measurement tools and check the real dimensions to compare.

By designing the same room with the dimensions it felt smaller but one cannot exclude the psicological effect of confirmation bias! So import and compare it is.

Thanks for sharing the extra details,

AR/MR would be your most direct way to validate the scale perception, as you can compare it to your actual environment. The Quest 2 is getting older, so the passthrough will be blurry, and the lenses have more distortion than the pancake lenses of the Quest 3. However, you should still be able to see enough to validate the scale.

One thing that can also confuse the correct scale perception is having the headset with an invalid tracking space floor height. If that is the case, you will always be standing higher or lower than your actual height when teleporting down in Arkio. You should also be able to see this well in Mixed Reality.

Let us know how your new tests go, and if you have any further questions on this.