| 30 |
|
If the direction vector is (0,0,0), a bogus record |
| 31 |
|
is printed and the output is flushed if the |
| 32 |
|
.I -x |
| 33 |
< |
value is unset or zero. |
| 33 |
> |
value is one or zero. |
| 34 |
|
(See the notes on this option below.)\0 |
| 35 |
|
This may be useful for programs that run |
| 36 |
|
.I rtrace |
| 199 |
|
.I res. |
| 200 |
|
The output will be flushed after every |
| 201 |
|
.I res |
| 202 |
< |
input rays. |
| 202 |
> |
input rays if |
| 203 |
> |
.I \-y |
| 204 |
> |
is set to zero. |
| 205 |
> |
A value of one means that every ray will be flushed, whatever |
| 206 |
> |
the setting of |
| 207 |
> |
.I \-y. |
| 208 |
|
A value of zero means that no output flushing will take place. |
| 209 |
|
.TP |
| 210 |
|
.BI -y \ res |
| 335 |
|
.I \-i |
| 336 |
|
option. |
| 337 |
|
.TP |
| 338 |
< |
.BI -sj \ frac |
| 339 |
< |
Set the specular sampling jitter to |
| 340 |
< |
.I frac. |
| 341 |
< |
This is the degree to which the highlights are sampled |
| 342 |
< |
for rough specular materials. |
| 343 |
< |
A value of one means that all highlights will be fully sampled |
| 344 |
< |
using distributed ray tracing. |
| 338 |
> |
.BI -ss \ samp |
| 339 |
> |
Set the specular sampling to |
| 340 |
> |
.I samp. |
| 341 |
> |
For values less than 1, this is the degree to which the highlights |
| 342 |
> |
are sampled for rough specular materials. |
| 343 |
> |
A value greater than one causes multiple ray samples to be sent |
| 344 |
> |
to reduce noise at a commmesurate cost. |
| 345 |
|
A value of zero means that no jittering will take place, and all |
| 346 |
|
reflections will appear sharp even when they should be diffuse. |
| 347 |
|
.TP |
| 670 |
|
Greg Ward |
| 671 |
|
.SH "SEE ALSO" |
| 672 |
|
getinfo(1), lookamb(1), oconv(1), pfilt(1), pinterp(1), |
| 673 |
< |
pvalue(1), rpict(1), rtcontrib(1), rvu(1), vwrays(1), ximage(1) |
| 673 |
> |
pvalue(1), rpict(1), rcontrib(1), rvu(1), vwrays(1), ximage(1) |
