| 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 |
| 48 |
+ |
where it is found.)\0 |
| 49 |
|
Negative coefficients and functions are allowed, and |
| 50 |
|
.I pcomb |
| 51 |
|
will produce color values of zero where they would be negative. |
| 119 |
|
and |
| 120 |
|
.I pa(n) |
| 121 |
|
gives the corresponding pixel aspect ratio. |
| 122 |
+ |
Exposure values will be set to 1.0 for inputs with the |
| 123 |
+ |
.I \-o |
| 124 |
+ |
option set. |
| 125 |
|
Finally, for pictures with stored view parameters, |
| 126 |
|
the functions |
| 127 |
|
.I "Ox(n), Oy(n)" |
| 147 |
|
will return a negative value, and |
| 148 |
|
.I S(n) |
| 149 |
|
will return zero. |
| 150 |
+ |
The first input picture with a view is assumed to correspond to the |
| 151 |
+ |
view of the output picture, which is written into the header. |
| 152 |
|
.PP |
| 153 |
|
The |
| 154 |
|
.I \-h |
| 224 |
|
To make a picture of a dot: |
| 225 |
|
.IP "" .2i |
| 226 |
|
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 |
| 227 |
+ |
.SH ENVIRONMENT |
| 228 |
+ |
RAYPATH the directories to check for auxiliary files. |
| 229 |
|
.SH AUTHOR |
| 230 |
|
Greg Ward |
| 231 |
|
.SH "SEE ALSO" |
| 232 |
< |
getinfo(1), icalc(1), pcompos(1), pfilt(1), rpict(1) |
| 232 |
> |
getinfo(1), icalc(1), pcompos(1), pfilt(1), rmtxcomb(1), rmtxop(1), rpict(1) |
