| 277 |
|
is simulated as being open for motion blur. |
| 278 |
|
Motion blur is computed by |
| 279 |
|
.I ranimove |
| 280 |
< |
using image-based rendering methods, and will not be exact. |
| 281 |
< |
The default value is 0, meaning no motion blurring. |
| 280 |
> |
using image-based rendering methods in a rather crude fashion. |
| 281 |
> |
A much better result is achieved by setting |
| 282 |
> |
.I MBLUR=0 |
| 283 |
> |
and using the |
| 284 |
> |
.I pmblur2(1) |
| 285 |
> |
command as a post-process, assigning the |
| 286 |
> |
.I ZNAME |
| 287 |
> |
and |
| 288 |
> |
.I MNAME |
| 289 |
> |
variables described below. |
| 290 |
> |
The default motion blur is 0. |
| 291 |
|
.TP |
| 292 |
|
.BR RATE |
| 293 |
|
This variable specifies the animation frame rate, in frames per second. |
| 344 |
|
.I printf(3) |
| 345 |
|
style integer field to distinguish one frame number from another. |
| 346 |
|
The final frames will use this name with a ".zbf" suffix. |
| 347 |
< |
This is intended for debugging purposes, and is not useful in |
| 348 |
< |
most circumstances. |
| 347 |
> |
This is needed by the |
| 348 |
> |
.I pmblur2 |
| 349 |
> |
command to compute a better motion blur. |
| 350 |
|
There is no default setting for this variable. |
| 351 |
|
.TP |
| 352 |
|
.BR MNAME |
| 355 |
|
.I printf(3) |
| 356 |
|
style integer field to distinguish one frame number from another. |
| 357 |
|
The final frames will use this name with a ".mvo" suffix. |
| 358 |
< |
This is mostly for debugging and special applications, |
| 359 |
< |
and not intended for normal use. |
| 358 |
> |
This file is used together with the image and depth buffer by |
| 359 |
> |
.I pmblur2 |
| 360 |
> |
to compute a better motion blur. |
| 361 |
> |
In this case, the |
| 362 |
> |
.I MBLUR |
| 363 |
> |
variable should be unset or zero. |
| 364 |
|
The file will contain 3 16-bit unsigned values per pixel. |
| 365 |
< |
The first two are the x and y offsets from the previous frame, with |
| 366 |
< |
an offset of 32768. |
| 365 |
> |
The first two are the x and y offsets to each pixel in the previous frame, |
| 366 |
> |
with an offset of 32768 being no movement. |
| 367 |
|
The third value is 0 if the previous frame's pixel was on a |
| 368 |
|
different object, and 32768 if it was on the same object. |
| 369 |
|
There is no default setting for this variable. |
| 422 |
|
.SH AUTHOR |
| 423 |
|
Greg Ward |
| 424 |
|
.SH "SEE ALSO" |
| 425 |
< |
fieldcomb(1), oconv(1), pfilt(1), pinterp(1), pvalue(1), rad(1), |
| 425 |
> |
fieldcomb(1), oconv(1), pfilt(1), pinterp(1), pmblur2(1), pvalue(1), rad(1), |
| 426 |
|
ran2tiff(1), ranimate(1), rpict(1), xform(1) |
