Why?

Forums Technical Discussion Why?

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happybabywzy: Member; 152 posts; Joined: 2月 2019; オフライン

2023年6月4日 6:39

Hi, I use Reflect Vop to reflect a vector to mirror direction with a normal vector , but why like this?

Edited by happybabywzy - 2023年6月4日 06:39:54

Attachments:
JS[M[VW8FY_ETU5$Z489FA0.png (366.9 KB)


protozoan: Member; 1850 posts; Joined: 3月 2009; オフライン

2023年6月4日 7:04

Your incoming @N has the wrong direction for your desired output. It needs to point downwards, like (-1, -1, 0). Direction is important for the vex reflect function.

Martin Winkler


Konstantin Magnus: Member; 725 posts; Joined: 9月 2013; オンライン

2023年6月4日 7:04

Your input vector points upwards already, that's why it gets reflected down.

https://procegen.konstantinmagnus.de/ [procegen.konstantinmagnus.de]


happybabywzy: Member; 152 posts; Joined: 2月 2019; オフライン

2023年6月4日 8:05

protozoan
Your incoming @N has the wrong direction for your desired output. It needs to point downwards, like (-1, -1, 0). Direction is important for the vex reflect function.

Thank you for your reply , it helps a lot


happybabywzy: Member; 152 posts; Joined: 2月 2019; オフライン

2023年6月4日 8:05

Konstantin Magnus
Your input vector points upwards already, that's why it gets reflected down.

Thank you for your reply , it helps a lot

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