| 7 |
|
* External symbols declared in rpaint.h |
| 8 |
|
*/ |
| 9 |
|
|
| 10 |
< |
/* ==================================================================== |
| 11 |
< |
* The Radiance Software License, Version 1.0 |
| 12 |
< |
* |
| 13 |
< |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
| 14 |
< |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
| 15 |
< |
* |
| 16 |
< |
* Redistribution and use in source and binary forms, with or without |
| 17 |
< |
* modification, are permitted provided that the following conditions |
| 18 |
< |
* are met: |
| 19 |
< |
* |
| 20 |
< |
* 1. Redistributions of source code must retain the above copyright |
| 21 |
< |
* notice, this list of conditions and the following disclaimer. |
| 22 |
< |
* |
| 23 |
< |
* 2. Redistributions in binary form must reproduce the above copyright |
| 24 |
< |
* notice, this list of conditions and the following disclaimer in |
| 25 |
< |
* the documentation and/or other materials provided with the |
| 26 |
< |
* distribution. |
| 27 |
< |
* |
| 28 |
< |
* 3. The end-user documentation included with the redistribution, |
| 29 |
< |
* if any, must include the following acknowledgment: |
| 30 |
< |
* "This product includes Radiance software |
| 31 |
< |
* (http://radsite.lbl.gov/) |
| 32 |
< |
* developed by the Lawrence Berkeley National Laboratory |
| 33 |
< |
* (http://www.lbl.gov/)." |
| 34 |
< |
* Alternately, this acknowledgment may appear in the software itself, |
| 35 |
< |
* if and wherever such third-party acknowledgments normally appear. |
| 36 |
< |
* |
| 37 |
< |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
| 38 |
< |
* and "The Regents of the University of California" must |
| 39 |
< |
* not be used to endorse or promote products derived from this |
| 40 |
< |
* software without prior written permission. For written |
| 41 |
< |
* permission, please contact [email protected]. |
| 42 |
< |
* |
| 43 |
< |
* 5. Products derived from this software may not be called "Radiance", |
| 44 |
< |
* nor may "Radiance" appear in their name, without prior written |
| 45 |
< |
* permission of Lawrence Berkeley National Laboratory. |
| 46 |
< |
* |
| 47 |
< |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| 48 |
< |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 49 |
< |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 50 |
< |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
| 51 |
< |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 52 |
< |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 53 |
< |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 54 |
< |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 55 |
< |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 56 |
< |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 57 |
< |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 58 |
< |
* SUCH DAMAGE. |
| 59 |
< |
* ==================================================================== |
| 60 |
< |
* |
| 61 |
< |
* This software consists of voluntary contributions made by many |
| 62 |
< |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
| 63 |
< |
* information on Lawrence Berkeley National Laboratory, please see |
| 64 |
< |
* <http://www.lbl.gov/>. |
| 65 |
< |
*/ |
| 10 |
> |
#include "copyright.h" |
| 11 |
|
|
| 12 |
< |
#include "ray.h" |
| 12 |
> |
#include <string.h> |
| 13 |
|
|
| 14 |
+ |
#include "ray.h" |
| 15 |
|
#include "rpaint.h" |
| 70 |
– |
|
| 16 |
|
#include "random.h" |
| 17 |
|
|
| 18 |
|
#ifndef WFLUSH |
| 122 |
|
VCOPY(vec, thisray.rdir); |
| 123 |
|
else |
| 124 |
|
VCOPY(vec, thisray.rop); |
| 125 |
< |
} else if (direc) |
| 126 |
< |
for (i = 0; i < 3; i++) |
| 127 |
< |
vec[i] -= ourview.vp[i]; |
| 125 |
> |
} else if (direc) { |
| 126 |
> |
for (i = 0; i < 3; i++) |
| 127 |
> |
vec[i] -= ourview.vp[i]; |
| 128 |
> |
if (normalize(vec) == 0.0) { |
| 129 |
> |
error(COMMAND, "point at view origin"); |
| 130 |
> |
return(-1); |
| 131 |
> |
} |
| 132 |
> |
} |
| 133 |
|
return(0); |
| 134 |
|
} |
| 135 |
|
|
| 376 |
|
if ((err = setview(vp)) != NULL) { |
| 377 |
|
sprintf(errmsg, "view not set - %s", err); |
| 378 |
|
error(COMMAND, errmsg); |
| 379 |
< |
} else if (bcmp((char *)vp, (char *)&ourview, sizeof(VIEW))) { |
| 380 |
< |
copystruct(&oldview, &ourview); |
| 381 |
< |
copystruct(&ourview, vp); |
| 379 |
> |
} else if (memcmp((char *)vp, (char *)&ourview, sizeof(VIEW))) { |
| 380 |
> |
oldview = ourview; |
| 381 |
> |
ourview = *vp; |
| 382 |
|
newimage(); |
| 383 |
|
} |
| 384 |
|
} |
| 391 |
|
{ |
| 392 |
|
double d; |
| 393 |
|
FVECT v1; |
| 394 |
< |
VIEW nv; |
| 394 |
> |
VIEW nv = ourview; |
| 395 |
|
register int i; |
| 396 |
|
|
| 447 |
– |
VCOPY(nv.vup, ourview.vup); |
| 448 |
– |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
| 397 |
|
spinvector(nv.vdir, ourview.vdir, ourview.vup, angle*(PI/180.)); |
| 398 |
|
if (elev != 0.0) { |
| 399 |
|
fcross(v1, ourview.vup, nv.vdir); |
| 400 |
|
normalize(v1); |
| 401 |
|
spinvector(nv.vdir, nv.vdir, v1, elev*(PI/180.)); |
| 402 |
|
} |
| 403 |
< |
if ((nv.type = ourview.type) == VT_PAR) { |
| 404 |
< |
nv.horiz = ourview.horiz / mag; |
| 405 |
< |
nv.vert = ourview.vert / mag; |
| 403 |
> |
if (nv.type == VT_PAR) { |
| 404 |
> |
nv.horiz /= mag; |
| 405 |
> |
nv.vert /= mag; |
| 406 |
|
d = 0.0; /* don't move closer */ |
| 407 |
|
for (i = 0; i < 3; i++) |
| 408 |
|
d += (vc[i] - ourview.vp[i])*ourview.vdir[i]; |
| 461 |
– |
nv.vfore = ourview.vfore; |
| 462 |
– |
nv.vaft = ourview.vaft; |
| 409 |
|
} else { |
| 464 |
– |
nv.horiz = ourview.horiz; |
| 465 |
– |
nv.vert = ourview.vert; |
| 410 |
|
d = sqrt(dist2(ourview.vp, vc)) / mag; |
| 411 |
< |
if ((nv.vfore = ourview.vfore) > FTINY) { |
| 411 |
> |
if (nv.vfore > FTINY) { |
| 412 |
|
nv.vfore += d - d*mag; |
| 413 |
|
if (nv.vfore < 0.0) nv.vfore = 0.0; |
| 414 |
|
} |
| 415 |
< |
if ((nv.vaft = ourview.vaft) > FTINY) { |
| 415 |
> |
if (nv.vaft > FTINY) { |
| 416 |
|
nv.vaft += d - d*mag; |
| 417 |
|
if (nv.vaft <= nv.vfore) nv.vaft = 0.0; |
| 418 |
|
} |
| 419 |
+ |
nv.vdist += d - d*mag; |
| 420 |
|
} |
| 421 |
|
for (i = 0; i < 3; i++) |
| 422 |
|
nv.vp[i] = vc[i] - d*nv.vdir[i]; |
