426
questions
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33
views
Three JS | Synchronize perspective camera position while switching between OrbitControls and DeviceOrientationControls
In my application ( React JS ) I'm switching between orbit controls and device orientation controls
import { DeviceOrientationControls, OrbitControls } from '@react-three/drei';
...
const [...
- 11
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votes
0
answers
45
views
Cannot set up custom camera in visionOS immersive space
I am unable to use a custom camera in visionOS immersive space.
I wrote a minimal demo app (below), based on Apple's Immersive Environment App template.
This app creates a box that is positioned so ...
- 15k
1
vote
1
answer
50
views
Z-Fighting on GeForce RTX but not on older cards
First, some pictures. Here is a CORRECT render done on a Quadro P2200, which is the main dev machine because of high compatibilty with mobile graphics in speed an acceleration:
This is the image in ...
- 672
1
vote
1
answer
77
views
How to display a RealityKit Perspective Camera View in a visionOS SwiftUI 2D window?
I am developing an immersive visionOS app based on RealityKit and SwiftUI.
This app has ModelEntities that have a PerspectiveCamera entity as child.
I want to display the camera view in a 2D window in ...
- 15k
0
votes
0
answers
27
views
Image analysis with MATLAB: transforming an image taken at an angle back to direct view
I have a series of photographs taken at an angle, like this:
What I would like to do is "straighten" these photographs into direct view:
The above examples are taken from this Photoshop ...
- 101
3
votes
1
answer
93
views
Zooming in/out on a sphere while the point position under cursor stays invariant
Just like in google earth, my game renders a sphere with the camera moving around it. The sphere has the radius 1 and is centered at the coordinate origin. The camera is always targeting the sphere ...
- 2,370
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votes
0
answers
118
views
How to do Perspective Transformation of Image
Suppose I have colmap camera poses, is it possible and how to obtain a new view of input image I (planar object) from a different viewpoint/camera pose using those poses?
Colmap camera poses has ...
- 1
0
votes
0
answers
26
views
Three.js Camera auto changes value of position and up (direction)
I’m having an issue about saving and loading the camera’s position and up (the direction in which the camera is looking at). I’m looking for help.
I’m sorry I cannot reproduce the same context.
I’m ...
- 1
0
votes
0
answers
53
views
Can one predict the location of the unseen point?
My question is quite simple. I have two images, on the first one I know the location of points P1, P2, P3, and P4. In the second image, I know the location of P2', P3', P4', and point Q'. Is there any ...
- 3
0
votes
0
answers
70
views
Get the coordinate of a model point from the screen
There is a some 2D object, it is located in the coordinate range -1 to 1. In world space it is also located in these coordinates (but z is shifted by -3 units).
My matrixes:
m_model.translate({0.0,0.0,...
- 13
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votes
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answers
21
views
Load panorama at specific position then move from there on click and drag
I have a panorama. I have an object on that panorama, and I have the xyz position of the object.
On the onload event of the panorama, the camera sets to a default position, if I give it no ...
- 1
1
vote
0
answers
53
views
Correct screen positioning of a sprite in a pseudo 3D environment
I am currently working on a small project in PICO-8 (that's why the code is in Lua and I am rendering to a 128x128 screen), where I tried re-creating a pseudo-3D environment similar to the Mode-7 ...
- 31
0
votes
1
answer
104
views
How to account for yaw and pitch tilt for real world landmark object labeled on iOS camera view perspective
Have an iOS app that labels landmarks (e.g. buildings, mountains the user) in the camera view in realtime, i.e. what the user sees in front of him. When it is straight on, it is no problem and ...
- 1
0
votes
1
answer
121
views
Postprocessing Perspective Transformation in Three.js
i want to create a scene in three.js, where the camera is moving. In every frame there are 4 points visible which form a quadriliteral. Subsequently, I want to process each frame by warping these 4 ...
- 15
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0
answers
51
views
I am making a 3D Engine but even with the correct matrixes but it breaks when rotating
So, I have make a 3d engine and I am trying to make the camera orbit around the player (in this case a cube), I have code for orbiting, 3D Projection, etc. but even with the correct matrixes the ...
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