Rendering, a fundamental pillar of digital graphics, has undergone an extensive transformation in recent years. From an activity that was initially limited to generating two-dimensional images, it has evolved into an advanced technology capable of producing amazing photorealistic results and virtual realities in which to navigate in real time. Let’s see in detail: what rendering is, which rendering types and techniques are available which are the necessary hardware requirements and which are the advantages offered to users in the field of design and visualization, with a particular focus on interior and architectural design.

What is rendering?

Rendering is the process of creating digital images from three-dimensional models or two-dimensional data. The meaning of the word 'rendering' refers to the idea of translation, restitution and rendering. This process involves calculating the optical properties of the scene, such as lighting, shadows and reflections, to generate a visually appealing and realistic image.

ArredoCAD Design - Render

Render and rendering: are they the same thing?

No, they are not. It is important to distinguish the term 'render', which indicates the final result of the image, from the term 'rendering', which refers to the process carried out by a rendering software or graphic rendering engine.

Types of Rendering

Rendering is divided mainly into two types: Real Time Rendering, and Offline Rendering. Real Time Rendering can generate instant images and it is ideal for interactive applications such as video games and virtual simulations where you can navigate. In contrast, Offline Rendering takes longer to calculate high-quality images, and it is often used in the film industry, in architecture, and design.

Graphic rendering technologies

Graphic rendering technologies are critical to achieving accurate and realistic visual results:

  • Z-Buffer,  for example, is used to manage the depth of objects in the scene, ensuring that the elements are arranged correctly.
  • Scanline Rendering calculates  lighting along scan lines, optimizing the rendering process.
  • Ray Tracing, on the other  hand, simulates the path of light rays in the environment to determine the appearance of surfaces, ensuring realistic reflections and refractions.
  • Ray Casting is a  more simplified technique based on calculations of intersection between rays and objects in the scene, ideal for real-time applications./li>

Hardware requirements for the rendering

Rendering can be a computationally intensive process and  requires powerful hardware for optimal results. These hardware requirements include a multicore CPU, a dedicated graphics card with support for technologies such as CUDA or openCL, a high amount of RAM and, if possible, the use of fast storage drives such as SSDs to handle large amounts of data.

Rendering in interior and architectural design

Rendering plays a key role in interior and architectural design, allowing designers to view 3D projects that do not exist as yet, in a realistic way. It allows understanding how the space will appear at the end, experiment with materials and lighting and communicate effectively with customers and users on topics ranging from the layout of spaces to the choice of materials and colors.

The advantages of rendering

The advantages of rendering are many and go beyond the simple generation of images. Realistic visualization of projects prior to their physical realization allows you to identify potential problems  and make changes before it’s too late, saving time and money in the design phase. In addition, rendering enables effective and persuasive communication with customers and other actors, conveying a clear idea of how the project will appear and facilitating the decision making process. This even without considering the possibility to advertise and show the project to potential buyers before it becomes a reality, such as in the real estate market. Rendering is therefore a powerful technology that has revolutionized the way we design and visualize the world around us. Thanks to the various types, techniques and applications, rendering offers a wide range of possibilities to create realistic and engaging images that inspire, inform and communicate. With a deep understanding of the rendering process and the related benefits, we can make the best use of the full potential of this amazing technology.

The ArredoCAD Designer rendering engine

ArredoCAd Designer  is a 3D design software to the world of furniture and architectural interior design. In addition to the Real Time rendering technology of the realtime Player, ArredoCAD also includes an Offline renderD-Lux , created using the potential of LuxCoreRender, among the main 'unbiased' tools that aim at the realistic reproduction of light effects. Extremely fast and powerful, it allows you to modify, turn on and off natural and artificial lights in real time without re-rendering the scene and ensuring considerable  time saving.

ArredoCAD Design - LuxCoreRender

With Dlux of ArredoCAD, you can also create 360 panoramic renders and then interactive Virtual Tours where you can also insert multimedia elements such as videos, links to websites, data sheets, images and texts. Want to try ArredoCAD and all the available rendering options for free? Download the 30-day trial from here.