I just recently switched from Babylonjs to Threejs. I love the performance and how light it is, but now I’m facing a problem. I know that Threejs uses right-handed coordinate system, and I have to switch it to left-handed system to match Babylonjs play replays that I had before and scenarios that p…

Woow! Thank you that worked as well! Yes, I had the issue of render inside-out and finally found a solution: I was also able to fix it few moments ago by flipping both the camera and scene. scene.scale.z = -1; camera.scale.z = -1; Will make the whole system left-handed fully without any issues s…

That’s crazy that that even worked! Do your models not render insideout? Maybe you have to invert shadowSide or something too… https://threejs.org/docs/#api/en/materials/Material.shadowSide

Very cool. I’m gonna have to remember this. :smiley: good work!

Just to clarify… when you swapped both scene and camera scale, did you still have to flip shadowSide?

No. Also I removed the side: THREE.Double as well. It worked perfect without any issues. I don’t know why this is not known yet because I see a lot of people asking how to flip the coords to left-handed. But I’m not sure if this will cause any issues for any other people, but for me so far everyth…

That’s great to know. Hopefully I’ll remember it when someone asks… and/or it will show up in search. :smiley: Churrs!

Flip camera Z will disable shadow

Questions

manthrax April 12, 2024, 1:19am 4

Very cool. I’m gonna have to remember this. good work!

Convert from one coordinate system to another?

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Flip camera Z will disable shadow

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