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Push your simulations to new extremes with new maths/physics classes featuring double precision floating-point numbers.

Render pipeline compatibility

The Built-in Render Pipeline is Unity’s default render pipeline. It is a general-purpose render pipeline that has limited options for customization. The Universal Render Pipeline (URP) is a Scriptable Render Pipeline that is quick and easy to customize, and lets you create optimized graphics across a wide range of platforms. The High Definition Render Pipeline (HDRP) is a Scriptable Render Pipeline that lets you create cutting-edge, high-fidelity graphics on high-end platforms.

Unity Version	Built-in	URP	HDRP
2022.3.22f1	Compatible	Compatible	Compatible

Description

Vector3 and friends, but backed by doubles instead of floats.

This free library gives you new data types in Unity. They provide the same functionality as the Unity maths and physics libraries, but they are built using double precision floating-point numbers.

The classes are designed to be instantly familiar to Unity users. There are very few caveats or missing methods. The included classes and methods are fully listed with comprehensive documentation here.

Consider of course that doubling the precision will affect memory usage and performance. If there's something you think is missing, feel free to get in touch.

Robbo

Technical details

Double precision implementation of the following Unity classes:

Mathf
Vector2
Vector3
Vector4
Quaternion
Matrix4x4

Note that sometimes an exact match to the Unity equivalent wasn't possible. Furthermore, not every single method from these classes has been implemented. In general, this is only for methods whose double precision equivalent likely offers little practical benefit.

The complete details of any differences between the above classes and their Unity equivalents, including which methods are/aren't implemented, can be found here in the documentation:

https://robertjclose.github.io/DPML-documentation/

If you are looking for a double-precision version of a particular method, please check the documentation to ensure that it is supported by this package.

If a method is not supported, but you have found a good reason why it should be, please get in touch and I will do my best to add it!

Related keywords

Simulation maths Physics