Thank you for all the enthusiasm and great feedback on UE5’s Early Access release!
We have noticed a lot of questions regarding Chaos Physics and I wanted to address the most common questions here:
A lot of the feedback we are seeing relates to Chaos Physics performance and how it compares to the legacy system. This is one of our top priorities for Chaos and we are working on improving performance across the board for UE5’s full release. We are tackling the use cases that are most common in games first, but we expect significant improvements in all areas for the full release. If you encounter poor performance using Chaos, please submit a bug report using our Bug Submission Form.
PhysX support in Early Access and beyond
Chaos Physics is enabled by default in the Early Access build and will be the default physics system once UE5 releases early next year. However, PhysX can still be enabled manually for those who need it. You will need to enable PhysX in a source build and recompile the engine. Please note that we plan to deprecate PhysX from UE5 completely in a future release post 5.0.
If you’d like to keep up with the updates to Chaos Physics you can download the latest source build from Github.
Submit feedback / bugs
We are actively gathering feedback and looking at submitted bugs, so please feel free to submit any bugs via the Bug Submission Form.
You can also leave your feedback in this thread.