Computer-generated imagery (CGI) has been around for decades, but in recent years CGI has become increasingly important in areas beyond filmmaking. This technology is used in advertising, architecture, engineering, virtual reality, and product development.
Creating CGI uses different techniques, including:
- 2D Pixel-based image editors such as Photoshop to produce vector shapes
- 3D Graphics software such as Autodesk 3ds Max generates a range of shapes from simple to complex forms, created from triangles and quadrangles, as well as simulating the way light reacts to a surface
- Algorithms to create complex fractural patterns
Types of CGI
CGI Photo Realistic Images
One type of CGI is photorealistic images. These images are made up of thousands of individual pixels. Each pixel represents a small portion of an image. A photo-realistic image looks very similar to what the eye sees when viewing real-life photographs. The techniques needed to create a photorealistic image are
- Correct use of light – the amount and direction of light will impact the texture of the finished image.
- Shading – The right shadowing will highlight the right areas and add realism to the image
- Perspective – all parts of the image need to be scaled correctly to ensure the image is flat or elongated.
- Camera angle – the correct viewpoint will imply the scale to the viewer
Photorealistic images can be used to market and sell a product before launch. eCommerce sites can also use Photorealistic images to support product listings or for use in funding campaigns or presentations to potential investors
Another type of CGI is called 3D models. This type of CGI is not photo-realistic. Instead, it’s based on mathematical equations that describe how light interacts with objects. It’s also known as virtual reality because it creates the illusion of being inside a three-dimensional space.
For Example. CGI has revolutionized furniture product marketing. The marketing team gets almost unlimited state-of-the-art imagery, including product views, cutouts, and combinations. These are all created digitally, starting with a high-quality 3D model.
A texture is an image that has been applied to a surface. You can think of it as a sticker that sticks to a wall. If you take a picture of a wall with a camera, you will capture the wall’s texture.
A 3D Artist can tweak a 3D model to change design colors and textures for the client to get CGI showcasing the different color and finishing options. CGI is much more cost-effective than producing a prototype for each color and sending them all to a photography studio.
Animations can use CGI to create entirely new worlds. Traditional animation involved created sequences of unique images to create a fluid motion, but CGI 3D animators create a series of virtual skeletons that have a set of key movements. The software handles the transitions.
The most well-known use of CGI animation is in TV and filmmaking. Still, CGI animation is used in diverse settings, including science, medicine, architecture, real estate, product development, marketing, and advertising.
If you are interested in learning more about how we can help you with your CGI needs, please contact us to learn about our CGI visualization services. From 3D architectural rendering and architectural modeling catering to architects and developers to product visualization and animation – we do it all.