Rendering
Contents:
This is the Visualization team
Oliver Strutynski,
Florian Echtler,
Heike Kraft,
Tobias Klug,
Christian Hessmann,
Stefan Metzger,
Christian Reiser
Architecture of the visualization component for the FataMorgana
System
Due to the requirements for a reliable and flexible AR system we have agreed
on building a distributed rendering component. The wearable has two
seperate components for receiving image data and displaying the image on the
screen/HMD.
To get the image data the receiver contacts the renderer (locally or over a
network) using a TCP/IP connection.
The renderer itself is again split up into two modules. The compute-server
(currently called renderer) receives DWARF position events and waits for an
incoming connection from a wearable. If that connection exists the renderer
uses shared memory to send the position data to the rendering component
(currently called glutrenderer) which in turn renders the model (received
from the world model component) and writes back the resulting image to a
shared memory area which will the be read by the compute server, who sends
the image to the wearable using the TCP/IP connection initiated above.
Note that the glut renderer continuously renders images. It can therefore
not be guaranteed that it will render an image for a given position.
Instead, when finished with rendering for the last position read, the glut
renderer will get the position currently in the shared memory area and will
generate an image for this position. Images will be marked using timestamps
and perhaps a unique sequence number.
Our tools
Our task
Our task is to build a car on a specific position and render it.
The implementation
We receive a matrix from the
tracking team with the data of the markers and the position of the virtual car
depending to the world model. With this matrix we build the camera-position and render the
car.
Current status
- We can build a car but the video is not running properly
- We couldn't place the car properly, yet.
The resolution
Here you can see the video.