Polygon (poly) modelling is different from advanced surfaces or CAD modelling and is the industry standard for creating 3D visualization. It’s suited for modelling soft furniture or sculptural folds. Everything from people, cars, products or organic forms and landscapes are frequently modelled using poly mesh modelling. 3D poly models are easy to edit, UV map and texture compared to CAD. However, there are various tools to map CAD models. Occasionally, parts of a CAD model are poly modelled for texturing and animation purposes. Poly models are very flexible and offer many advantages over CAD – they are ideal for optimizing when used in virtual reality projects, for real-time or uploading to a web browser.
CREATE A 3D PROTOYPE
Poly modelling is so flexible that you can model and render anything from just a concept drawing to create a 3D visualization, sometimes even in just a few hours. Poly models are easier to manipulate during the design phase. It allows you to quickly update the overall form, letting it evolve more organically to find the perfect shapes. There are many modifiers and tools that aid the design phase, letting you create variations that are not possible with 3D CAD, unless you begin from scratch. In addition, poly models are generally easy to prepare for 3D printing – physically hold a design in your hands and get a true sense of how it looks and feels!
The image on the right is a 3D replica of a hand-painted glass blaska model from the Natural History Museum in Dublin and poly modelled in 3DS Max. With poly modelling you can replicate any object and texture it to look like that object. This is particularly useful if 3D scanning or photogrammetry is not possible. Once you have a 3D model, you can add layers and materials to give the render a cinematic effect. In the case study on the right, subsurface scattering is blended with a painted glass material. We animated the tentacles as a low-poly model and projected details using displacement maps to create a turnaround of the object. This technique avoids having to transport a fragile original to a photographer’s studio. Additionally, this approach can be significantly cheaper and offers much more flexibility.
The best way to create a 3D model of something in the real world is to adopt a photogrammetry workflow. You can process up to 3000 camera raw photos of a single object, delivering a high resolution 3D model and matching texture up to 8K. Utilizing plugins and post production processes, you can remove sunlight from a 3D scan to achieve a clean diffuse texture. Create endless variations combining maps from the texture baking process using different materials and textures.
For example, we can 3D scan part of a carved table, such as this hand carved Indian elephant table, and map the scan data to a round top or any other shape…