| 3 |  |  | 
| 4 |  | This file describes how to build and install Radiance using the SCons | 
| 5 |  | based build system (an alternative to the traditional makeall script | 
| 6 | < | expleined in the README file). | 
| 6 | > | explained in the README file). | 
| 7 |  |  | 
| 8 |  |  | 
| 9 |  | Requirements | 
| 10 |  | ------------ | 
| 11 |  |  | 
| 12 |  | Please make sure that you have dowloaded and unpacked BOTH the Radiance | 
| 13 | < | source package AND the archive with the auxiliary files. Crucial parts | 
| 14 | < | of the system will be missing if you only have one of them. | 
| 13 | > | source package AND the archive with the auxiliary support files. | 
| 14 | > | Crucial parts of the system will be missing if you only have one of | 
| 15 | > | them, and SCons will be unable to build the software. | 
| 16 |  |  | 
| 17 |  | SCons is a platform-independent software configuration and build system | 
| 18 |  | written in Python. If SCons and Python are not already installed on your | 
| 21 |  | Python:  http://www.python.org/ | 
| 22 |  | SCons:   http://www.scons.org/ | 
| 23 |  |  | 
| 24 | < | For many systems, precompiled packages are availabls, such as Installer | 
| 24 | > | For many systems, precompiled packages are available, such as Installer | 
| 25 |  | files for Windows. Most Linux distributions already come with Python | 
| 26 |  | installed and ready to use. | 
| 27 |  |  | 
| 126 |  | ------------ | 
| 127 |  |  | 
| 128 |  | The software will be installed into the directories given either in the | 
| 129 | < | configuration file through command options, by invoking | 
| 129 | > | configuration file or through command options, by invoking | 
| 130 |  |  | 
| 131 |  | $> scons install | 
| 132 |  |  | 
| 148 |  | To save disk space on your system, or in preparation of a fresh build | 
| 149 |  | with different settings, you can clean up the source tree by invoking | 
| 150 |  |  | 
| 151 | < | %> scons -c | 
| 151 | > | $> scons -c | 
| 152 |  |  | 
| 153 |  | This will delete all the generated object files, libraries, and | 
| 154 |  | executables in and below the "ray/src/" subdirectory. |