| 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 |
| 19 |
< |
#ifdef SPEED |
| 75 |
< |
#define WFLUSH (5*SPEED) |
| 76 |
< |
#else |
| 77 |
< |
#define WFLUSH 100 /* flush after this many rays */ |
| 19 |
> |
#define WFLUSH 2048 /* flush after this many rays */ |
| 20 |
|
#endif |
| 79 |
– |
#endif |
| 21 |
|
|
| 22 |
|
#ifdef SMLFLT |
| 23 |
|
#define sscanvec(s,v) (sscanf(s,"%f %f %f",v,v+1,v+2)==3) |
| 104 |
|
return(-1); |
| 105 |
|
} |
| 106 |
|
if (!direc || ourview.type == VT_PAR) { |
| 107 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
| 107 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
| 108 |
|
if (!localhit(&thisray, &thescene)) { |
| 109 |
|
error(COMMAND, "not a local object"); |
| 110 |
|
return(-1); |
| 118 |
|
VCOPY(vec, thisray.rdir); |
| 119 |
|
else |
| 120 |
|
VCOPY(vec, thisray.rop); |
| 121 |
< |
} else if (direc) |
| 122 |
< |
for (i = 0; i < 3; i++) |
| 123 |
< |
vec[i] -= ourview.vp[i]; |
| 121 |
> |
} else if (direc) { |
| 122 |
> |
for (i = 0; i < 3; i++) |
| 123 |
> |
vec[i] -= ourview.vp[i]; |
| 124 |
> |
if (normalize(vec) == 0.0) { |
| 125 |
> |
error(COMMAND, "point at view origin"); |
| 126 |
> |
return(-1); |
| 127 |
> |
} |
| 128 |
> |
} |
| 129 |
|
return(0); |
| 130 |
|
} |
| 131 |
|
|
| 166 |
|
h/hresolu, v/vresolu)) < -FTINY) { |
| 167 |
|
setcolor(thisray.rcol, 0.0, 0.0, 0.0); |
| 168 |
|
} else { |
| 169 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
| 170 |
< |
samplendx++; |
| 169 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
| 170 |
> |
samplendx = rand_samp ? random() : samplendx+1; |
| 171 |
|
rayvalue(&thisray); |
| 172 |
|
} |
| 173 |
|
|
| 372 |
|
if ((err = setview(vp)) != NULL) { |
| 373 |
|
sprintf(errmsg, "view not set - %s", err); |
| 374 |
|
error(COMMAND, errmsg); |
| 375 |
< |
} else if (bcmp((char *)vp, (char *)&ourview, sizeof(VIEW))) { |
| 376 |
< |
copystruct(&oldview, &ourview); |
| 377 |
< |
copystruct(&ourview, vp); |
| 375 |
> |
} else if (memcmp((char *)vp, (char *)&ourview, sizeof(VIEW))) { |
| 376 |
> |
oldview = ourview; |
| 377 |
> |
ourview = *vp; |
| 378 |
|
newimage(); |
| 379 |
|
} |
| 380 |
|
} |
| 387 |
|
{ |
| 388 |
|
double d; |
| 389 |
|
FVECT v1; |
| 390 |
< |
VIEW nv; |
| 390 |
> |
VIEW nv = ourview; |
| 391 |
|
register int i; |
| 392 |
|
|
| 447 |
– |
VCOPY(nv.vup, ourview.vup); |
| 448 |
– |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
| 393 |
|
spinvector(nv.vdir, ourview.vdir, ourview.vup, angle*(PI/180.)); |
| 394 |
|
if (elev != 0.0) { |
| 395 |
|
fcross(v1, ourview.vup, nv.vdir); |
| 396 |
|
normalize(v1); |
| 397 |
|
spinvector(nv.vdir, nv.vdir, v1, elev*(PI/180.)); |
| 398 |
|
} |
| 399 |
< |
if ((nv.type = ourview.type) == VT_PAR) { |
| 400 |
< |
nv.horiz = ourview.horiz / mag; |
| 401 |
< |
nv.vert = ourview.vert / mag; |
| 399 |
> |
if (nv.type == VT_PAR) { |
| 400 |
> |
nv.horiz /= mag; |
| 401 |
> |
nv.vert /= mag; |
| 402 |
|
d = 0.0; /* don't move closer */ |
| 403 |
|
for (i = 0; i < 3; i++) |
| 404 |
|
d += (vc[i] - ourview.vp[i])*ourview.vdir[i]; |
| 461 |
– |
nv.vfore = ourview.vfore; |
| 462 |
– |
nv.vaft = ourview.vaft; |
| 405 |
|
} else { |
| 464 |
– |
nv.horiz = ourview.horiz; |
| 465 |
– |
nv.vert = ourview.vert; |
| 406 |
|
d = sqrt(dist2(ourview.vp, vc)) / mag; |
| 407 |
< |
if ((nv.vfore = ourview.vfore) > FTINY) { |
| 407 |
> |
if (nv.vfore > FTINY) { |
| 408 |
|
nv.vfore += d - d*mag; |
| 409 |
|
if (nv.vfore < 0.0) nv.vfore = 0.0; |
| 410 |
|
} |
| 411 |
< |
if ((nv.vaft = ourview.vaft) > FTINY) { |
| 411 |
> |
if (nv.vaft > FTINY) { |
| 412 |
|
nv.vaft += d - d*mag; |
| 413 |
|
if (nv.vaft <= nv.vfore) nv.vaft = 0.0; |
| 414 |
|
} |
| 415 |
+ |
nv.vdist /= mag; |
| 416 |
|
} |
| 417 |
|
for (i = 0; i < 3; i++) |
| 418 |
|
nv.vp[i] = vc[i] - d*nv.vdir[i]; |
