42 |
|
and |
43 |
|
.I \-f |
44 |
|
options. |
45 |
+ |
The variable and function definitions in each |
46 |
+ |
.I \-f source |
47 |
+ |
file are read and compiled from the RADIANCE library where it is found. |
48 |
|
Negative coefficients and functions are allowed, and |
49 |
|
.I pcomb |
50 |
|
will produce color values of zero where they would be negative. |
220 |
|
To make a picture of a dot: |
221 |
|
.IP "" .2i |
222 |
|
pcomb \-x 100 \-y 100 \-e 'ro=b;go=b;bo=b;b=if((x-50)^2+(y-50)^2\-25^2,0,1)' > dot |
223 |
+ |
.SH ENVIRONMENT |
224 |
+ |
RAYPATH the directories to check for auxiliary files. |
225 |
|
.SH AUTHOR |
226 |
|
Greg Ward |
227 |
|
.SH "SEE ALSO" |