Unity supports HLSL data types, but handles some differently to provide better support on mobile platforms.
Unity doesn’t support HLSL floating point suffixes.
For example if you use 2.0h
to create a half precision float, Unity treats it as a high precision float instead.
Test your shadersA program that runs on the GPU. More info
See in Glossary on the target platform to know how it handles floating point exceptions (for example, division by zero).
Desktop GPUs that support Direct3D 10 support the IEEE 754 floating point standard. This means that float numbers behave exactly as they do in regular programming languages on the CPU.
Mobile GPUs might not support that standard and handle floating point exceptions differently. For example, division by zero might result in NaN
, zero or another value.
This is only supported by the OpenGL ES 2.0 Graphics API. On other APIs it becomes the lowest supported precision (half
or float
).
This is the lowest precision fixed point value and is generally 11 bits. fixed
values range from –2.0 to +2.0 and have a precision of 1/256.
Fixed precision is useful for regular colors (that are typically stored in regular textures) and performing simple operations on them.
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.