| 211 |
|
Distributed ray-tracing performs anti-aliasing by randomly sampling |
| 212 |
|
over pixels. |
| 213 |
|
A value of one will randomly distribute samples over full |
| 214 |
< |
pixels. |
| 214 |
> |
pixels, and is not really recommended due to the tendency of |
| 215 |
> |
samples to (nearly) coincide. |
| 216 |
|
A value of zero samples pixel centers only. |
| 217 |
< |
A value between zero and one is usually best |
| 217 |
< |
for low-resolution images. |
| 217 |
> |
A value around 0.5-0.8 is typical. |
| 218 |
|
.TP |
| 219 |
|
.BI -pm \ frac |
| 220 |
|
Set the pixel motion blur to |
| 464 |
|
lost when the program finishes or dies. |
| 465 |
|
By using a file, different invocations can share illuminance |
| 466 |
|
values, saving time in the computation. |
| 467 |
< |
Also, by creating an ambient file during a low resolution rendering, |
| 468 |
< |
better results can be obtained in a second high resolution pass. |
| 467 |
> |
Also, by creating an ambient file during a low-resolution rendering, |
| 468 |
> |
better results can be obtained in a second high-resolution pass. |
| 469 |
> |
(It is a good idea to keep all of the calculation parameters the same, |
| 470 |
> |
changing only the dimensions of the output picture.)\0 |
| 471 |
|
The ambient file is in a machine-independent binary format |
| 472 |
|
which may be examined with |
| 473 |
|
.I lookamb(1). |
