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Difference Between 2D and 3D Virtual Scenes | Datavideo

Difference Between 2D and 3D Virtual Scenes

Jul 19 2021

Are you interested in understanding the difference between 2D and 3D virtual scenes? Let's first clarify what 2D and 3D refer to. 2D refers to two-dimensional, flat images (2 Dimensions), while 3D is three-dimensional, like the lifelike, three-dimensional images in real life (3 Dimensions). The following illustrations can provide a clear explanation.

【Pic. 1】When looking at the front view of the bear in both 2D and 3D, they both have the correct shapes, appearing round and chubby.

【Pic. 2】However, once you change the viewing angle, the differences become apparent.

Let's focus on the 3D bear on the right in Image Two. We can see the bear's side profile, clearly observing details such as its side-facing hand, its head's curvature, and even its ears' shape. It's as if a bear is standing next to us, providing an immersive feeling.

On the other hand, regardless of the viewing angle, the 2D bear on the left doesn't reveal any additional details compared to Image One. If you pay attention, you can notice that the 2D bear in Image Two has been stretched and deformed, losing the round and chubby appearance seen in Image One.

From the above description, 2D is a flat image. Although artistic techniques can create a sense of depth, their essence is still flat. Therefore, changing the viewing angle won't reveal more object information, only a stretched and deformed flat image. In contrast, 3D graphics, generated through computer intelligence, allow viewers to adjust their perspective, obtain comprehensive visual information, and achieve a realistic, immersive experience.

【Pic. 3】TVS-1200A provides a 2D virtual background.

Let's easily understand the difference between 2D and 3D virtual scenes in Datavideo's TVS series. Taking Datavideo TVS-1200A as an example, it adopts a 2D virtual scene, as shown in Image Three. You might wonder, aren't these scenes very "three-dimensional"? Isn't that 3D? The dinosaur museum on the right, especially, seems to have a large space behind it, creating a realistic feeling as if the host can walk to the backlit window.

What's the explanation? Look at Image Four. One of the admirable features of this work is its natural and penetrating depth effect. The depth extends backward, creating a grand atmosphere and a three-dimensional imaginary space.

【Pic. 4】The left image is for the front view, and the right image is for the side view.

However, Image Four is still a 2D work! Although it achieves an imaginative three-dimensional space with skillful techniques, the image is still 2D. From the right image in Image Four, you can see that, when viewed from another angle indoors, the lines of the objects are stretched and deformed, lacking physical rationality.

By now, you should easily understand the following concept: 2D works can also present an excellent sense of three-dimensionality, but only within a specific range of viewing angles, where this three-dimensional sensation is reasonable.

In contrast, 3D virtual scenes can achieve a real sense of three-dimensionality and spatiality. In the 3D virtual scene of Datavideo TVS-2000A, such as the classroom scene in Image Five, we can move the virtual camera, change the shooting angle, and achieve a natural feeling like the teacher is in a real classroom. Whether the lens is directed towards the orange wall to capture the logo on the wall or towards the large window to capture the outdoor scenery, it creates a natural and reasonable spatial perception without any image distortion. The powerful computing capabilities of Datavideo TVS-2000A leverage the features and advantages of 3D virtual scenes, undoubtedly bringing more flexibility and richness to your program production.

【Pic. 5】 TVS-2000A 3D virtual scene for course recording.


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