Questions tagged [3d]
3D computer graphics are graphics that use a three-dimensional representation of geometric data stored in the computer for the purposes of performing calculations and rendering 2D images.
17,274
questions
0
votes
0
answers
18
views
Translated meshes appear tilted towards camera
I'm using Vulkan APIs to render meshes with the standard projection-view-model matrix approach. However, when translating objects, they appear tilted and distorted, always facing the camera. I don't ...
- 11
0
votes
1
answer
24
views
Unity: Rigidbody moves on a moving Rigidbody
I am making a game in Unity where one player can drive a truck and another player can move inside that truck. When the player enters the back of the truck I parent him to the truck so he moves with ...
- 1
1
vote
1
answer
25
views
Working on a 3D audio visualizer project (Unity) and I can't convert Vec3 to Float, what am I doing wrong?
Noob here... I am working with a c# script in Unity which was originally written to scale an object on 2 separate axes (X/Z) using 2 separate variables (based on audio input). The change I am trying ...
0
votes
0
answers
15
views
Three.js: How to prevent flickering, which occurs when page restarts. (White flashing)
On my discover flickering occurs when page “off”. Effect act during 1-2ms in canvas. Moreover this problem may occur or not occur in any canvas blocks on page.
I tested more variants of solution this ...
- 1
0
votes
0
answers
28
views
Is there a way to get a Shap.kernelExplainer.shap_values in Python to accept 3-dimensional data?
I want to do a SHAP analysis of a model. The model is a RNN that takes a whole timeseries as input, where every time series is in the format (101, 12). However, the SHAP package won't accept 3-...
0
votes
1
answer
49
views
Calculating angle between 3 points give weird result according pattern angle
I want to calculate the angle between two segments in 2D space. The two segments are defined by AB and BC.
The result of the calculation seems to vary according to the orientation of the vectors.
...
- 53
0
votes
1
answer
38
views
A way to fit circles on 3D data
What I am trying to do is to fit a circle across all cross-sections of 3D point cloud data that resembles a pipe.
The data resembles a cylindrical shape with disconnected parts in between, which can ...
- 23
0
votes
0
answers
11
views
How can I rig human-looking face onto a 3d FLAME mesh talking head?
Noob question here as I've just started working with Blender and 3d models:
I'm currently working with Blender 3.4.1 and I'm using Python script which runs blender on render.py and animates a 3d ...
- 629
0
votes
0
answers
20
views
How to set the camera rotation and translation in pytorch3d?
I have a mesh A in world coordinate. I read the tutorial of pytorch3d:
R, T = look_at_view_transform(2.7, 10, 20)
cameras = FoVPerspectiveCameras(device=device, R=R, T=T)
But my mesh is not at (0, 0, ...
0
votes
0
answers
10
views
z value in NDC outside [-1...1]
I'm trying to write a simple graphics pipeline, I encountered a problem in NDC. The coordinates are out of range from -1 to 1, while the top is clearly inside the camera pyramid (near plane at a ...
1
vote
0
answers
33
views
Improving VTK Virtual Camera Setup for Accurate Mesh Visualization
I am working on a project where I need to visualize a 3D object mesh using a virtual camera in VTK, aiming to match the real-world camera setup. I use SolvePNP to obtain the rotation vector (rvec) and ...
- 182
-1
votes
0
answers
11
views
How to Center a 3D model into SceneView with the rotation capability in Java?
I am trying to preview a 3D model in my app without AR by using SceneView, In my app I could render the 3d model into SceneView Successfully, Now I want to center the 3d model into SceneView with ...
- 29
0
votes
0
answers
14
views
Lighting doesn't work in Unity with built in URP
I made a Unity project via the 3D URP, and I've been trying to use lighting thru sprite renderers, and 3d objects, however it doesn't work.. At all.
I'm trying to test to see if a red light would ...
- 19
0
votes
0
answers
7
views
SemanticKITTI rotation troubles
The pose data provided with the SemanticKITTI (https://semantic-kitti.org/) LIDAR dataset is formatted unusually. For instance, they use a 'yzx' coordinate system instead of the standard 'xyz'. My ...
- 1
-1
votes
0
answers
20
views
Three.js outline affect problem,can't show the scene clearly
I tried to add outline affect for a cube at scene.But the scene has some problem:the scene is so vague that I can't see the cube clearly.I tried to use SMAAPass before but it didn't work.I want to ...
- 1