Simulate more 2D objects
New physics and sprite tools can simulate and display thousands of moving 2D objects.
Unity 6.5
2D physics with the Physics Core 2D API Update releaseSuperseded
What changed
Unity feature: Physics Core 2D and RenderSprite
Physics Core 2D provides a C#-driven physics world. RenderSprite draws sprites without creating a GameObject for each one, making a different approach to large simulations possible.
Use it
- Use the Physics Core 2D guide to create and step a world with bodies and shapes.
- Submit the visual results through Graphics.RenderSprite or RenderSpriteInstanced each frame.
Requirements and limits
- This is a code-driven workflow rather than Rigidbody2D component setup. RenderSprite supports 2D lights and masks but does not cast shadows in this release.