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  1. Hi everybody! I'm working on an Augmented Reality problem that involves math too complex for me. To be honest, I'm not sure there's a solution to this problem. Any help is of course welcome (even if this help consists in telling me "Impossible, you cannot go from an N dimension to an N+1 dimension). I would like to place a 3D object on a photo uploaded by a user. I have the intuition that by asking the user to place the origin and the axes of the coordinate data system, specifying for each of the axes a "real" length from a known reference frame, it could be possible to determine the sequence of transformations that led to such a projection of the 3D coordinate system. And deduce the position of the corresponding camera etc... to get the correct parameters to simulate the presence of a 3D object on a picture. This could of course only work if the user is able to draw the 3 axes and define their real length on the picture. Here is a nice drawing of the goal I would like to achieve : The user has entered the 3 axis on the projection picture, and thanks to known distance, has dimensioned them. The magic of math goes through there... We are able to draw a 3D object in this scene : here is a perfectly drawn unit cube on the XOZ plane? Here is a PG that reproduces the first part (the data entered by the user are directly entered in the code? https://playground.babylonjs.com/#2XZ6M5 I don't own that background, I just needed an image to show the problem. I thank you VERY MUCH in advance for your help ! PS : I know that the field of view of the camera is something to be taken in account as well, but I think a simple slider may allow user to change it to match picture's fov.
  2. Do BabylonJS has any capability to mix phone camera and 3D "scene" "object" together as augmented reality? Is there any tutorial any show case or example? Can we add any 3D object(s) over camera of phone? Is there any way camera is for VR (left and right lens) and possibility to ad 3D object over camera ? Greetings Ian
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