Getting Started with Entropy 3.0 under Linux/Irix
September 1, 2001
In the following discussion, we assume that the Entropy 3.0 distribution will reside in "/usr/local/exluna". To install in a different location, simply substitute "/usr/local/exluna" with the path corresponding to your desired location.
Remove
any previously-installed version of Entropy
Unpack the
Entropy 3.0 distribution
Note that you may need root permission to create the /usr/local/exluna directory.
%
mkdir /usr/local/exluna
% cd /usr/local/exluna
% tar xzvf Entropy30R1.mips3.tar.gz
or
% tar xzvf Entropy30R1.linux.tar.gz
This will unpack the Entropy 3.0 distribution into /usr/local/exluna/Entropy.
Set the ENTROPYHOME environment variable
Entropy uses the ENTROPYHOME environment variable to find default shaders
and textures, the shading language pre-processor, and other files. You should
set this environment variable in your shell initialization file (e.g. .tcshrc
or .cshrc):
ksh: export
ENTROPYHOME=/usr/local/exluna/Entropy
csh/tcsh: setenv
ENTROPYHOME /usr/local/exluna/Entropy
Add ENTROPYHOME/bin to your path
In order to run Entropy's various programs
from a command prompt, you must add the Entropy 3.0 bin directory to your
path in your shell initialization file (e.g., .tcshrc, .cshrc, etc.). For
example, under tcsh, you could add the following line to the end of your
.tcshrc file:
set path=($path /usr/local/exluna/Entropy/bin)
Acquire and install Entropy 3.0 licenses
See Entropy 3.0 Licensing for full details.
Recompile any previously-compiled Entropy shaders.
If you have installed a previous version of Entropy, be sure to recompile
any shaders with the new shader compiler.
Render a test scene from the examples directory
In order to display rendered images, X Windows must be running.
In a shell window:
% cd /usr/local/exluna/Entropy/examples/scenes/vasegallery
% entropy -d vasegallery1.rib
An iv window should appear, and the image should begin to render.