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Votes

8

Found in

2018.3.0f2

Issue ID

1110660

Regression

No

Continuous speculative collision produces incorrect contact points

Physics

-

How to reproduce:

1. Open attached project
2. Open scene Scenes/SampleScene.unity
- Scene contains two bars constrained using Configurable Joints and a wall
- The bars are meant to rotate back and forth so they are in contact with the wall at both ends, one end at a time
3. Play the scene
- As the bars collide with the wall, contact points are displayed as spheres
- Note that the points do not correctly align with where the bar is touching the wall

- Reproduced with 2018.3.3f1 (d2dda06f4fb1)

  1. Resolution Note:

    Speculative CCD calculates predicted contacts rather than actual contacts

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Comments (2)

  1. BuildSucceeded

    Nov 22, 2019 11:59

    So its still not been fixed?

  2. Partel-Lang

    Sep 30, 2019 06:16

    So how can I tell actual contacts from predicted contacts if I wanted to play particle/sound FX on actual collision? This is completely useless.

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