I’m using splines/curves/Path3D to make a looping swim path for fish. I went off the tutorials I’ve found for moving a camera along a 3D Path, but I can’t seem to figure out a way to make it so the rotation is smoothly reset at the end/beginning of the loop. If you check this playground https://pla…

I found that the rotation parameters at the end and the beginning were different, so I changed them and now they are completely smooth. Fish on path | Babylon.js Playground (babylonjs.com)

@carolhmj I can not remember how you solved this in your demo ???

Yeeeah ensuring spline continuity is a tricky little thing, my Path3D demo is not a continuous curve so I ended up not having to solve that. To make the path smooth on the loop, you have to guarantee that the normal and binormal vectors are the same in the start and end, which is not something that …

Nice! And the fish stays upright as well! Thanks~

How to control/smoothen the rotation of an object moving along a 3D Path?

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xiehangyun April 4, 2023, 9:33am 3

Fish on path | Babylon.js Playground (babylonjs.com)
How about this?

Mesh following path3D

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How to control/smoothen the rotation of an object moving along a 3D Path?

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