Anything pertaining to the techniques for creating a 3d-camera effect in an application dealing with 3d-graphics (a game, a simulator, a 3d CAD program, etc.). A 3d-camera effect reproduces the effect of a camera that can move in the virtual 3-dimensional space modeled by the application and can be used to "observe" the virtual environment from different point of views.
Questions tagged [3dcamera]
34 questions
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How to use Orbbec Astra sensor/camera on ROS to view pointcloud?
I have installed ROS indigo, openni2, and plugged Orbbec Astra sensor in.
When I try to execute:
roslaunch openni2_launch openni2.launch
I get the warning that no device is connected:
No matching device found.... waiting for devices.
Reason:…
Rebirth Bloods
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How to control a 3D camera using a single quaternion representation for its orientation?
I am creating a 3D camera for my game engine and I want to represent the camera by a single quaternion for its orientation. The local up,front and side camera axis are generated by converting this quaternion into a rotation matrix. The first row of…
abhi23
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Formula for adjusting camera's pixels cordinates do not make sense
I was doing a code for raytracing based on this tutorial: https://youtu.be/AARMPhL9d6g, but at the minute 3:30 there is this code below to adjust the image aspect ratio, but I can't understand the logic behind this adjust in ratio:
if (width >…
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Limiting (clamping) a rotation vec2 in C++
I am trying to stop my 3D character in a game engine I'm working on to be able to rotate their camera more than ~60 degrees (right now, you can clip through the floor and do a 360 degree rotation when turning the camera)
I have been researching on…
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How to rotate camera on poles
I'm working on a Three.js mini-game where you can flying a rocket through space. I was able to get the camera follow the rocket but when I rotate it for 180° upwards, the camera turns upside down. Could you please help me with these Angle…
js_thin_time
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Direction based on the forward facing camera
I'm trying to get if the 3d shoulder camera is facing the front of the player so I could stop the head from moving around.
I tried to do
Vector3 Direction = targetConstraint.position - sourceObject.position;
but that only worked if i was facing…
Turnrp
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How do we fix our flickering depth image when using an Orbecc Astra Camera and Rviz?
We try to set up the Orbbec Astra Embedded S camera with ROS and our goal is to detect objects by reconstructing a 3D point cloud from the camera images. We are using ROS Noetic and the ROS-Package "astra-camera"…
astra123
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I tried to plot the points of a point cloud using matplotlib but the plot obtained is inclined when compared to original point cloud
I want the plot not to be inclined, can someone help me on this
I took the points with X,Y,Z co-ordinates and tried to plot on python using matplotlib
sree-9
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Structured Light scanner - camera calibration problem
I want to create a 3D scanner based on structural light. How can i calibrate projector with camera in Python?
Hardware: Raspberry Pi 4, Pi Camera, Raspberry Pi HQ lens
Software: Python, OpenCV, and this project
Dawid Szewc
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Put a cube at the near clipping plane in Unity?
I'm trying to put a cube at the exact location and rotation as the near clipping plane of a camera, and also scale it to be the exact height and width of the near clipping plane.
Through code, I'm getting very close to doing this but it is still a…
Jackie
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From depth 2D image to 3D point cloud with python
I use a 3D ToF camera which streams a depth 2D image where each pixel values are a distance measurement in meters.
I know the following parameter of the camera: cx, cy, fx, fy, k1, k2, k3, p1, p2.
And I want to convert the depth 2D image into a…
Ghislain Moreau
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1 answer
How to Create a 3D Shaky Camera Effect in GML
I am currently working on a project in GameMaker:S.
I want to know how I would create an effect where the 3D camera bobs around, as if it is being held by somebody with unsteady hands? I've been trying to figure something out for a couple of days…
zxin
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Intel Real Sense C# Recording stream to a file
I am trying to use the Intel Real Sense SDK to acquire some guided frames and then I am trying to stitch them using the Intel Stitching algorithm.
However, the SetFileName function is not writing the file to the directory.
Can you please…
Praveen
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Google's Project Tango Get Points In Certain Screen Region
So I'm trying to figure out how to take Tango's point cloud and keep only the points located (by X and Y, depth doesn't matter) in a square area at the center of the DEVICE screen. So imagine a small square reticle that remains at the center of the…
awbasham
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Interferences while using two ToF cameras
Im using a DS325 from SoftKinetic and a Creative Senz3D at the same time with the DepthSense-SDK and the Point-Cloud-Library (on Ubuntu 15.04). But I got strong interferences.
Is there a possibility to control the laser (software side) either to…
Nico R.
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