Hi, Let’s say I have a scene with multiple objects in it, and I want my camera to focus one of them in particular. But I want my camera to be positioned in such a way that this target oject will be positioned at some specific coordinates in the viewport (for instance let’s say 25% from the left an…

that is not what I meant at all, but ok. I will give you this broken code - it moves the camera so that the cube goes under the mouse where you click, but it should not really work and I dont know why it does :sweat_smile:

Sounds pretty much like a question which popped up again recently: [image] Offset OrbitControls pivot point Questions Hey, I need to offset my “scene center” and want to orbit around a offseted pivot point. My canvas is filling the whole browser window and I have a sidem…

An easy way would be to add the object to camera space. In this snap_shot, one can see a plane ( upper left corner ) with DDS texture that has a fixed transformation. [Screen_Capture]

That was an interesting post indeed. The author of the question ended up increasing the width of the rendered viewport to offset the center ( see ), which isn’t a acceptable solution to me. Also, the yomotsu/camera-controls repo was mentionned along with this specific demo which is quite interesting…

Thanks for your answer but I’m not sure I understand. :thinking: In your example, I would need the center of the 3d face object to be at a given screen space position (like 25% from the left, and 50% from the top). And I don’t want to move the face itself (because it could be part of a larger scen…

(putting @mjurczyk red hat on) There is approximately one billion of ways to position a camera like that. You will have to be waaaaaay more specific.

Hi and thanks for your answer! I’ll try to be as specific as I can: Let’s say I’m making a website with : a full-screen canvas in the background some text above it. [mockup1] The background canvas displays a 3d space with a red ball positioned at the center (0,0,0). I have positioned a persp…

Summing up your requirements: a perspective camera 2D HTML text in front (i.e.: on top) of 3D scene shifting of the world not allowed translation/rotation of camera preferred, to see what’s “behind” 2D HTML text the only solution I can come up with would look something like this, with the light b…

Thanks @makc3d , it seems to work fine, although I couldn’t solve the problems you pointed out in the code. I think it will still do the trick!

Orientate the camera so that a given 3d point is always at a given 2d position in the viewport

Questions

vielzutun.ch May 5, 2022, 3:53am 2

Sounds pretty much like a question which popped up again recently:

Topic		Replies	Views
Offset OrbitControls pivot point Questions orbit-controls	10	5022	July 23, 2024
How can I center my object (random position, rotation) in my camera? Questions camera	3	481	June 28, 2024
How to position the camera so that the given world coordinate is projected on the given screen position Questions transform	2	569	May 2, 2023
Move the camera towards the object Questions orbit-controls	5	4535	March 17, 2021
Change the perspective camera's perspective origin Discussion camera	14	1531	March 23, 2024

Orientate the camera so that a given 3d point is always at a given 2d position in the viewport

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