Manual page for SHADER(1)
shader - compile shading language source into run-time shaders
SYNOPSIS
/usr/prman/shader
[ -Iincdir ]
[ -o outputfile ]
[ -s srcfilename ]
[ -v ]
[ -q ]
[ -Uname ]
[ -Dname ]
[ -Dname=def ]
files ...
DESCRIPTION
shader
translates shading language source statements into modules
suitable for execution in the RenderMan run-time environment.
If the files specification is missing, shader
looks for input on stdin.
Unless overridden with the -q
option, the compiler prints the name of each shader module
as it is compiled.
OPTIONS
The following options are supported by shader.
- -Iincdir
-
This option is actually passed to and interpreted by cpp,
the C pre-processor.
It specifies the directory in which to search for
#include files.
Several such options may be given to shader and directories
are searched in the order specified.
The default directory, /usr/prman/lib/shaders will be
searched last.
- -U name
-
This option is passed to and interpreted by cpp.
It removes any initial definition of
name,
where
name
is a reserved symbol that is predefined by the particular version of
cpp.1
See
cpp.1
for the implementation-dependent
list of these possibly reserved symbols.
- -D name
-
This option is passed to and interpreted by cpp.
It defines
name
as 1 (one). This is the same as if a
-Dname=1
option appeared on the
shader
command line, or as if a
#define name 1
line appeared in the source file that
shader
is processing.
- -D name=def
-
This option is passed to and interpreted by cpp.
It defines
name
as if by a
#define
directive. This is the same as if a
#define name def
line appeared in the source file that
shader
is processing.
The
-D
option has lower precedence than the
-U
option.
That is, if the same name is used in both a
-U
option and a
-D
option, the name will be undefined regardless of the order of the options.
- -o outputfile
-
By default, shader places its output in a file named
"shader_name.slo" where shader_name is the name
of the shader as specified in the shader definition statement
in the source file.
Note that this is not necessarily the same as the source
file name.
The -o option allows the user to override this default
naming convention.
It should be used with care since the run-time system looks
for shader executables according to the default naming convention.
The outputfile specification may be either a file name,
in which case output is written to the specified file, or one
of the following special names:
-
- -
-
Write the output to stdout
- -src
-
Derive an output filename from the source filename by
removing any directory prefix and a .sl suffix
and appending a .slo suffix.
- -shader
-
Derive the output filename from the name of the shader
and the .slo suffix.
This is the default.
- -s srcfilename
-
This allows specification of the original source file
name in those cases where it may be difficult or impossible
to infer it otherwise
(e.g., when the source file is being cated to stdin).
- -v
-
The verbose option produces more output from
the compiler.
- -q
-
The quiet option suppresses the normal
printing of the shader module names as they are compiled.
FILES
/lib/cpp pre-processor
/NextLibrary/Shaders default include directory
/usr/prman/shader shell front end
/usr/prman/lib/shadecom compiler executable
Created by unroff & hp-tools.
© somebody (See intro for details). All Rights Reserved.
Last modified 11/5/97
