Difference Between 3D and 4D

The terms "3D" and "4D" are commonly used to describe different types of experiences, but they refer to very different things. 3D is used to describe three-dimensional space, which is the physical world around us, while 4D is used to describe four-dimensional space-time, which includes time as a dimension. In this essay, we will explore the differences between 3D and 4D.

What is 3D?

Three-dimensional space, or 3D, refers to the physical world around us that we can see, touch, and interact with. It is characterized by three dimensions - length, width, and height. We can use these three dimensions to describe the position of objects in space, their size, and their shape. For example, we can describe the size of a table using its length, width, and height.

Three-dimensional space is also used in computer graphics and animation to create lifelike images and videos. In this context, 3D refers to the creation of three-dimensional objects and environments using computer software. The software can be used to create models of objects, which can then be manipulated to create animations or still images.

What is 4D?

Four-dimensional space-time, or 4D, includes time as a fourth dimension. This means that it is not just space that is being described, but also the movement of objects through time. In physics, space-time is used to describe the universe, and it is a fundamental concept in the theory of relativity.

In 4D space-time, an object's position in space and time is described using four coordinates - three for space (length, width, and height) and one for time. For example, if we were tracking the motion of a car, we would use four-dimensional space-time to describe its position at any given moment.

Differences: 3D and 4D

One of the key differences between 3D and 4D is that 3D is static, while 4D is dynamic. In other words, 3D describes objects and environments as they are, while 4D describes how they change over time. For example, a 3D model of a tree would show it in a single moment in time, while a 4D model would show how the tree grows and changes over time.

Another difference between 3D and 4D is that 3D is more tangible, while 4D is more abstract. 3D objects and environments can be physically interacted with, while 4D space-time is more of a conceptual construct. It is a way of describing the universe, but it is not something that we can touch or see directly.

Despite these differences, both 3D and 4D have important applications in a wide range of fields. In addition to computer graphics and animation, 3D is used in architecture, engineering, and manufacturing to create designs and prototypes of buildings and products. 4D, on the other hand, is used in physics and astronomy to study the behavior of the universe and to make predictions about its future.





Dimensions have been developed as the knowledge of the space increased. They are measurable things, i.e.Universe variables. The concept of flat universe reflects the idea of 2 dimensions.

Our reality, however, is presented in three dimensions – everything around us is explained by its length, width and height.

Adding the dimension of time as an abstract dimension leads to the idea of four dimensionality.


3d representation is presented with three variables – length, width and height.

4d adds the time variable.


3d presentation is a real-life factual concept.

4d is an abstract idea.


In conclusion, 3D and 4D are very different concepts that are used to describe different aspects of the world around us. 3D refers to the physical world we can see and touch, while 4D includes time as a dimension and describes how objects and environments change over time. Both 3D and 4D have important applications in a variety of fields and are essential tools for understanding and interacting with the world around us.

Updated on: 25-Apr-2023

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