User guide

Viz Engine Administrator’s Guide

Viz Engine 1 Viz Engine 2

Video Out B Unused Fill

Video Out C Key Unused

Video Out D Unused Key

Communication Port 6700 6800

Since this configuration puts an extra load on the Matrox card, it is important to use the

available resources with care.

• In the video section of the scene switch off all unused layers

• Let the GPU do the color conversion.

The Matrox card itself is synced through the Viz Engine 1 instance.

It is important that only one display is active in the NVIDIA control panel. If you span

the desktop across multiple GPUs, the affinity mask has no effect and both engines will

render on GPU.

Viz Video Wall distributor

The Viz Video Wall distributor listens to port 6100 as if it was a regular Viz Engine. The

engines are connected via ports 6700 and 6800 respectively.

During startup the engines are not in sync; hence, you need to send the Viz command

RENDERER SET_VSYNC 1 for them to listen to each other. If one Viz Engine fails,

RENDERER SET_VSYNC 0 should be sent to the other renderer to allow it to run freely.

• RENDERER*CURRENT_CAMERA*ZERO_PARALLAX_DIST SET will set the distance of the

zero parallax plane to the camera origin.

• RENDERER*CURRENT_CAMERA*EYE_SEPARATION SET sets the eye separation of the

current camera.

These properties are also available for the individual cameras in all three layers.

To configure a machine with two graphics cards

1. Install Viz Engine 3.3 or later and choose Dual Channel or Viz Trio Box CG

setup.

2. From the Viz3 sub folder ConfigExample/TrioOneBox or ConfigExample/

DualChannel, select the example configuration file that suits your desired video

output format.

3. Create two copies of the selected configuration file and place them in your Viz3

directory and rename one to VIZ-YOURHOSTNAME-0-0.cfg and the other VIZ-

YOURHOSTNAME-1-0.cfg.

4. Start Viz Config for both instances (channel 1and channel 2) and enter settings for