Hello, I’m new bee of this framework. I met some problem about this: https://playground.babylonjs.com/#Z4ZGAY#3 you can find the question when you rotate the gzimo about directional light. The direction is obviously wrong in right hand system.

Hey! The vector3 in the light constructor is a direction. It cannot be (0, 0, 0): https://playground.babylonjs.com/#Z4ZGAY#4

OK. I will fixed it in my code. But you can see that the direction is different between left hand system & right hand system. You can try to disable the comment of ‘scene.useRightHandSystem’, then observe the gizmo’s direction.

Oh yeah…unfortunately gizmos are not designed for right handed Pinging @Cedric to see if he can have a look:)

Actually, I’m wondering if the issue is with the gizmo. 1st screen: Left Hand coordinates. Sphere.position.x = -1 is on the left.Light vector is (1.,0,0). Light comes from the left goes to right. Sphere lighting and lightmesh orientation are fine. [image] Coordinates changed to right hand. [im…

oh right!! This is a light issue Good catch! Can you have a look at it?

And the corresponding PR Fix Right Hand coordinates with directional lights and shadows by CedricGuillemet · Pull Request #6712 · BabylonJS/Babylon.js · GitHub

Thx @Cedric & @Deltakosh . Hope new version will finish as soon as possible.

Hi, @Cedric & @Deltakosh . The spot light has the same question.

[SOLVED] Unexpected light gizmo on right hand system

Questions

Zcating August 21, 2019, 2:42pm 15

Thx!!!

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[SOLVED] Unexpected light gizmo on right hand system

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