Rotation Problem | Three.js | Page 1

gray imp Apr 25, 2023, 12:37 AM

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Consider using rotation and position directly, instead of translate / rotate methods

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Easier in a long run

wary jetty Apr 25, 2023, 12:37 AM

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I dont understand I guess

gray imp Apr 25, 2023, 12:38 AM

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object.position.x +=

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For example

wary jetty Apr 25, 2023, 12:38 AM

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translate doesn't do that underneath?

gray imp Apr 25, 2023, 12:38 AM

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Nope, iirc they do it in world space, and position works in object space

wary jetty Apr 25, 2023, 12:39 AM

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🤯

wary jetty Apr 25, 2023, 12:53 AM

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gray imp Nope, iirc they do it in world space, and position works in object space

No clue why, but for my objection with dimn of 30, I'm still having to do

stairs.object.rotation.y += Math.PI / 2
stairs.object.position.z += 14
stairs.object.position.x += 14

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To get it to align flush

gray imp Apr 25, 2023, 12:55 AM

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Put the object inside an empty group

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And centre it inside

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Then rotate the group

wary jetty Apr 25, 2023, 12:55 AM

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it's just one mesh, but i can try that

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Screen_Shot_2023-04-24_at_8.54.33_PM.png

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That seam at the bottom of the stairs

gray imp Apr 25, 2023, 12:57 AM

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Should the object snap to the centre of the grid cell? Or to edge?

wary jetty Apr 25, 2023, 1:01 AM

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edge

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the rotated 180 degree version should occupy the same space as the original

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and the 270 degree version should occupy the same space as the 90 degree version

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that is my goal

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For dimensions 30x40,
I have to offset not by 30 / 2 = 15, but by 14

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Changed dimn to 40x60
and now have to offset not by 40/2 = 20, but by 18

#Rotation Problem