When working with Unreal Engine, it’s important to understand the units of measurement used throughout the software. This guide will provide an overview of the various units used in Unreal Engine, including length, width, height, and depth, as well as angle and time measurements.
Length
Unreal Engine uses a combination of different units for measuring length. The most commonly used unit is the meter (m), which is the standard unit for length in many countries around the world. Other units that are sometimes used include centimeters (cm) and inches (in).
Width and Height
Like length, Unreal Engine also uses a combination of different units for measuring width and height. The most commonly used unit for both width and height is again the meter (m), but centimeters (cm) and inches (in) are also sometimes used. It’s important to note that Unreal Engine uses a left-handed coordinate system, where positive values indicate movement to the right and negative values indicate movement to the left.
Depth
In addition to length and width, Unreal Engine also uses units for measuring depth. The most commonly used unit is again the meter (m), but centimeters (cm) and inches (in) are also sometimes used. It’s important to note that in a 3D environment like Unreal Engine, depth is typically measured from the origin point of the coordinate system, which is usually located at the bottom of the scene.
Angle Measurement
Unreal Engine uses radians as its primary unit for measuring angles. Radians are a continuous unit that measures the angle between two lines intersecting at a single point. They are calculated by dividing the length of an arc on a circle by the radius of the circle. Other units for measuring angles, such as degrees and minutes, can also be used in Unreal Engine but are less common.
Time Measurement
Finally, Unreal Engine uses seconds as its primary unit for measuring time. Seconds are defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom. Other units for measuring time, such as minutes and hours, can also be used in Unreal Engine but are less common.
Conclusion
In conclusion, Unreal Engine uses a combination of different units for measuring length, width, height, depth, angle, and time. It’s important to understand these units in order to effectively work with the software and create realistic 3D environments. By using radians for angle measurement and seconds for time measurement, Unreal Engine provides a consistent and efficient way to create high-quality 3D content.