How can you model real-world objects using 3D scanning?

I partially agree, I think the first step is the understanding of why you need to scan something. Each scanner has different pro and cons but mainly they give you different results. Do you need a detailed 3d model with accurate measure or do you need the appearance of the scanned object (external color and texture). Each scanner has limitations and before starting, you have to know what you really need!!!! seems obvious but....

No. Start with asking what's the actual need first! Your compromise is accuracy VS cost. Photogrammetry uses photos stitched into 3D models, providing inexpensive but less accurate scanning, because it uses an inference algorithm. Laser scanning measures objects precisely using lasers, capturing fine details quickly. However, such scanners are expensive. In my field of robotics, photogrammetry allows basic geometry capture. Laser scanning enables highly accurate details. For startups, photogrammetry is affordable. When serving high-standards clients like #Neom or #SABIC, laser scanning is up to the expectations. The choice depends on the budget and scanning purpose. There are other technologies too, but this gives a good picture.

One of the first questions we ask when scanning a project is- What will you be using the deliverable for? It might be more cost effective to outsource a scanning project based on the level of detail and labor expertise / hours required. We use specific scanners based on the desired outcome, the project type, occupancy of a space and the make up of a space (windows, walls, etc).

There are a number of very interesting uses for a scanned 3D model, starting with a model intended to be a digital twin like what Nvidia created for car factory. In such a case, the model allows monitoring of all factory operations live. In this case the model as detailed as possible with laser scanning. Another fascinating use is the imitation of reality in the virtual world, the metaverse. since many of these platforms are web-based, the model should be as easy as possible. NERF technology and producing a model from images with a combination of reducing the amount of polygons in the model will be able to produce a model suitable for these worlds. There is no doubt that there is a fascinating path ahead of us.

The best method of 3D scanning is Laser 3D scanning is certainly the most common and used 3D scanning technique. Digitally capturing the shape of the object using laser light to get a digital representation of the real object and the cost of Mid-range handheld 3D scanners tend to cost between $10,000 and $30,000.

Choosing the right platform is critical for choosing how to scan. Whether it is a laser scan, a dedicated scanning device, drone photos and even cellphone photos. The quality of the scan model should be adapted to the use we want to use the model. In addition, we have to take into account what hardware the model platform will run on, whether it is a powerful computer, a website or a VR headset.

The most important issue here is to understand the lighting conditions before commencing a scan. No model looks great with a shadowed dents on its model. It is better to have a neutral lighting condition before scan to make sure there are no strong lights reflecting on surfaces or the presence of darker shadows in a scanning process. Refer to texturing techniques when they capture it on a cloudy and neutral lighting conditions. To get best results prefer a 3d scanning of assets only on better lightning conditions to avoid errors in 3D datascanning.

A few points to have into consideration: Making sure of the lighting conditions and calibrate the colours of the object. Apply a matte powder or powder to reflective surfaces is crucial.

Yes, I completely agree. All these explanations are the first steps of a good scan. We should know the part we want to scan completely, consider the color or coating, consider the ambient light and observe everything that is needed to have a correct scan or mesh.

In my opinion blender software is the best when it comes to cleaning a mesh and reshape it tothe perfect result. It's fast and easy to navigate and user friendly to operate the application and doesn't cost anyone.

Blender has to be the best of the 3 in terms of flexible UI, efficiency, 3D sculpting and painting, and using Eevee to check your outcome as you work.

If I want to explain from my own experience, I can mention Geomagic software. I am very comfortable with this software and I can easily correct the open points and turn it into a model

Best part about scanning for a 3d asset is you do not need to worry about applying new textures anymore. As while scanning the images takes itself over the mesh as a pre-applied texture. But in case of physics based rendering a manual tessellation node process may need to required by texturing artist to solve this issue. So that when a 3d light is added to that assets you can see true shadow behaviour and creates a good amount of level of details in it.

I highly recommended fbx as itsa great output format that can also carry applied textures. But if peopleare working for games in unreal engine i would recommend the gltf format which is even lighter in size comparison with fbx and has better rich format output.

wow, just about everything in this article is incorrect ! It is obviously written by an AI app, not a 3D scanning/modelling professional.

The article scrapes the surface in terms of 3D scanning and modelling a real world object. There's way more depth and steps involved in the process to ensure that you're getting your time's worth.