Creating and rendering SceneKit nodes using pixel/point values?












0















I'm trying to use SceneKit to render some highly geometric and skeuomorphic UI elements. So far I've figured out how to use SCNView to render the scene, but I've run into two problems:




  1. SceneKit geometry is measured in meters, which means having to do point conversion any time geometry is manipulated or created.


  2. SCNView seems to perform it's own scaling on SCNScene it renders, without any clear API to disable or control that scaling. This makes it more difficult to map the geometry to the screen.



What techniques exist to create scenes in such a way that easily map to screen geometry?










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  • I am not sure what exactly you want to accomplish. There are the projectPoint and the unprojectPoint methods to convert between screen coordinates and SceneKit units though.

    – jlsiewert
    Jan 3 at 17:36











  • Thanks for the reply. I found the answer I was looking for here.

    – mattsven
    Jan 3 at 17:46


















0















I'm trying to use SceneKit to render some highly geometric and skeuomorphic UI elements. So far I've figured out how to use SCNView to render the scene, but I've run into two problems:




  1. SceneKit geometry is measured in meters, which means having to do point conversion any time geometry is manipulated or created.


  2. SCNView seems to perform it's own scaling on SCNScene it renders, without any clear API to disable or control that scaling. This makes it more difficult to map the geometry to the screen.



What techniques exist to create scenes in such a way that easily map to screen geometry?










share|improve this question























  • I am not sure what exactly you want to accomplish. There are the projectPoint and the unprojectPoint methods to convert between screen coordinates and SceneKit units though.

    – jlsiewert
    Jan 3 at 17:36











  • Thanks for the reply. I found the answer I was looking for here.

    – mattsven
    Jan 3 at 17:46
















0












0








0








I'm trying to use SceneKit to render some highly geometric and skeuomorphic UI elements. So far I've figured out how to use SCNView to render the scene, but I've run into two problems:




  1. SceneKit geometry is measured in meters, which means having to do point conversion any time geometry is manipulated or created.


  2. SCNView seems to perform it's own scaling on SCNScene it renders, without any clear API to disable or control that scaling. This makes it more difficult to map the geometry to the screen.



What techniques exist to create scenes in such a way that easily map to screen geometry?










share|improve this question














I'm trying to use SceneKit to render some highly geometric and skeuomorphic UI elements. So far I've figured out how to use SCNView to render the scene, but I've run into two problems:




  1. SceneKit geometry is measured in meters, which means having to do point conversion any time geometry is manipulated or created.


  2. SCNView seems to perform it's own scaling on SCNScene it renders, without any clear API to disable or control that scaling. This makes it more difficult to map the geometry to the screen.



What techniques exist to create scenes in such a way that easily map to screen geometry?







ios macos scenekit






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share|improve this question











share|improve this question




share|improve this question










asked Jan 3 at 1:36









mattsvenmattsven

14.9k65394




14.9k65394













  • I am not sure what exactly you want to accomplish. There are the projectPoint and the unprojectPoint methods to convert between screen coordinates and SceneKit units though.

    – jlsiewert
    Jan 3 at 17:36











  • Thanks for the reply. I found the answer I was looking for here.

    – mattsven
    Jan 3 at 17:46





















  • I am not sure what exactly you want to accomplish. There are the projectPoint and the unprojectPoint methods to convert between screen coordinates and SceneKit units though.

    – jlsiewert
    Jan 3 at 17:36











  • Thanks for the reply. I found the answer I was looking for here.

    – mattsven
    Jan 3 at 17:46



















I am not sure what exactly you want to accomplish. There are the projectPoint and the unprojectPoint methods to convert between screen coordinates and SceneKit units though.

– jlsiewert
Jan 3 at 17:36





I am not sure what exactly you want to accomplish. There are the projectPoint and the unprojectPoint methods to convert between screen coordinates and SceneKit units though.

– jlsiewert
Jan 3 at 17:36













Thanks for the reply. I found the answer I was looking for here.

– mattsven
Jan 3 at 17:46







Thanks for the reply. I found the answer I was looking for here.

– mattsven
Jan 3 at 17:46














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