Conversation

Notices

1. Embed this notice
   SuperDicq (superdicq@minidisc.tokyo)'s status on Wednesday, 16-Oct-2024 18:06:57 JST SuperDicq

   in reply to

   • 【Ξｎｉｇｍａｔｉｃｏ】:misskey:

   @enigmatico@mk.absturztau.be +Y up probably makes the most sense to people who are used to looking at 2D graphs, like in math class, where usually the Y coordinate is up.
   
   Personally I think +Z up makes the most sense. For example your drawing a topdown map in 2D (just X and Y) and then you just add the Z coordinate to make your map in 3D. If you use +Y up you would have to draw your initial map with just a X and Z coordinate which would be weird.

   • Embed this notice
     【Ξｎｉｇｍａｔｉｃｏ】:misskey: (enigmatico@mk.absturztau.be)'s status on Wednesday, 16-Oct-2024 18:06:58 JST 【Ξｎｉｇｍａｔｉｃｏ】:misskey:

     2D games often had +Y down instead of up. This is because the screen is drawn from the top left corner to the bottom right corner. And by screen draw I mean, how old CRTs used to draw the image.
     
     I have no idea why +Y is up in 3D games. Probably because OpenGL did that? Someone must have done that first and everyone copied it.
     
     The standard should be left hand, +X is right, +Y is forward, +Z is up.