二维：
二维图像在几何中由平面图形表示，具有两个维度的长度和宽度。二维形状没有厚度，仅在两个面中测量。一些二维示例如下：圆形、三角形、正方形、矩形和五边形，因为它们有长和宽。它是基于计算机的数字图像生成。 2 维计算机图形主要用于各种应用，如传统印刷、排版、绘图技术。
3维：
3 维图像或对象由三个维度表示 – 长、宽和高。 3D 的一些示例如下立方体、长方体、球体、圆锥体和圆柱体，因为它具有长度、宽度和长度。它是存储在计算机中的几何数据(通常是笛卡尔平面)的 3 维表示，用于执行计算和渲染 2D 图像。
2-D 和 3-D 动画的区别：
| S.No. | 2-D | 3-D |
|---|---|---|
| 1. | 2-D means that the object is two dimensional. | 3-D means that the object is 3 dimensional. |
| 2. | 2-D is the cheapest in price as compare to 3-D. | 3-D is costly then 2-D. |
| 3. | 2-D is all about the frames of the images. | 3-D is all about movements of the images. |
| 4. | In 2-D, images is created by the traditional drawing method. | In 3-D, everything is created by computer software. |
| 5. | In 2-D, image is comprised by height, weight. | In 3-D, Image is comprised by height, weight, depth. |
| 6. | In 2-D, image in mathematical form x-axis, y-axis. | In 3-D, image in mathematical form x-axis, y-axis, z-axis. |
| 7. | Geometry in 2-D are Rectangle, square, triangle, polygon etc. | Geometry in 3-D are cylinder, cube, primed, spear. |
| 8. | It is not suitable for conceptual drawing. | It is suitable for conceptual drawing. |