Mapping *
SphereMappingCreate(
Vector *center,
Vector *norm,
Vector *uaxis)
{
Mapping *res;
res = (Mapping *)Malloc(sizeof(Mapping));
res->flags = OBJSPACE;
res->method = SphereMapping;
if (center)
res->center = *center;
else
res->center.x = res->center.y = res->center.z = 0.;
if (norm && uaxis) {
res->norm = *norm;
if (VecNormalize(&res->norm) == 0.) {
RLerror(RL_ABORT, "Degenerate mapping vector.\n");
return (Mapping *)NULL;
}
if (VecNormCross(norm, uaxis, &res->vaxis) == 0.) {
RLerror(RL_ABORT, "Degenerate mapping vector.\n");
return (Mapping *)NULL;
}
(void)VecNormCross(&res->vaxis, norm, &res->uaxis);
} else {
res->norm.x = res->norm.y = res->uaxis.y = res->uaxis.z =
res->vaxis.x = res->vaxis.z = 0.;
res->norm.z = res->uaxis.x = res->vaxis.y = 1.;
}
return res;
}
/*
* create plane primitive
*/
Plane *
PlaneCreate(Vector *pos,Vector *norm)
{
Plane *plane;
Vector tmpnrm;
tmpnrm = *norm;
if (VecNormalize(&tmpnrm) == 0.) {
RLerror(RL_WARN, "Degenerate plane normal.\n");
return (Plane *)NULL;
}
plane = (Plane *)share_malloc(sizeof(Plane));
plane->norm = tmpnrm;
plane->pos = *pos;
plane->d = dotp(&plane->norm, pos);
return plane;
}
/*
* Set default parameters
*/
void
RSSetup()
{
extern SurfList *CurSurf;
extern Medium TopMedium;
extern void NoiseInit();
#ifdef MULTIMAX
unsigned int bytes;
/*
* Initialize shared memory stuff.
*/
bytes = 1 << SHARED_BYTES;
if (share_malloc_init(bytes) == -1) {
RLerror(RL_PANIC, "Cannot share_malloc %d bytes.\n",bytes);
} else
fprintf(fstats,"Malloced %d bytes of shared memory.\n",
bytes);
#endif
Camera.hfov = HFOV;
Camera.vfov = UNSET;
Camera.pos.x = EYEX;
Camera.pos.y = EYEY;
Camera.pos.z = EYEZ;
Camera.lookp.x = LOOKX;
Camera.lookp.y = LOOKY;
Camera.lookp.z = LOOKZ;
Camera.up.x = UPX;
Camera.up.y = UPY;
Camera.up.z = UPZ;
Camera.focaldist = UNSET;
Camera.aperture = 0.;
Screen.xres = Screen.yres = UNSET;
Options.cpp = TRUE;
Options.maxdepth = MAXDEPTH;
Options.report_freq = REPORTFREQ;
Options.jitter = TRUE;
Options.samples = UNSET;
Options.gaussian = GAUSSIAN;
Options.filterwidth = UNSET;
Options.contrast.r = UNSET;
Options.ambient.r = Options.ambient.g =
Options.ambient.b = 1.0;
Options.cutoff.r = UNSET;
Options.cache = TRUE;
Options.shadowtransp = TRUE;
Options.crop[LOW][X] = Options.crop[LOW][Y] = 0.;
Options.crop[HIGH][X] = Options.crop[HIGH][Y] = 1.;
Stats.fstats = stderr;
Options.pictfile = stdout;
#ifdef URT
Options.alpha = TRUE;
Options.exp_output = FALSE;
#endif
Options.gamma = GAMMA;
Options.eyesep = UNSET;
#ifdef LINDA
Options.workers = WORKERS;
#endif
Options.totalframes = 1;
Options.startframe = 0;
Options.starttime = 0.;
Options.framelength = 1.;
Options.shutterspeed = 0.;
TopMedium.index = DEFAULT_INDEX;
TopMedium.statten = 1.0;
NoiseInit(); /* Initialize values for Noise() */
/*
* Top of object definition stack points to the World object.
* The World object is always a list.
*/
Defstack = GeomStackPush(GeomListCreate(), (GeomList *)NULL);
Defstack->obj->name = strsave("World");
/* Initialize surface stack */
CurSurf = SurfPush((Surface *)NULL, (SurfList *)NULL);
}
/*===========================================================================*\
*
* Routine: rt_Setup()
*
* Comments: Sets the default parameters
*
\*===========================================================================*/
static
TQ3Status
rt_Setup(TRTDrawContext * /*inContext*/)
{
extern Medium TopMedium;
extern void NoiseInit();
#ifdef MULTIMAX
unsigned int bytes;
/*
* Initialize shared memory stuff.
*/
bytes = 1 << SHARED_BYTES;
if (share_malloc_init(bytes) == -1) {
RLerror(RL_PANIC, "Cannot share_malloc %d bytes.\n",bytes);
} else
fprintf(fstats,"Malloced %d bytes of shared memory.\n",
bytes);
#endif
Camera.hfov = HFOV;
Camera.vfov = UNSET;
Camera.pos.x = EYEX;
Camera.pos.y = EYEY;
Camera.pos.z = EYEZ;
Camera.lookp.x = LOOKX;
Camera.lookp.y = LOOKY;
Camera.lookp.z = LOOKZ;
Camera.up.x = UPX;
Camera.up.y = UPY;
Camera.up.z = UPZ;
Camera.focaldist = UNSET;
Camera.aperture = 0.;
Screen.xres = Screen.yres = UNSET;
Options.cpp = TRUE;
Options.maxdepth = MAXDEPTH;
Options.report_freq = REPORTFREQ;
Options.jitter = TRUE;
Options.samples = UNSET;
Options.gaussian = GAUSSIAN;
Options.filterwidth = UNSET;
Options.contrast.r = UNSET;
Options.ambient.r = Options.ambient.g =
Options.ambient.b = 1.0;
Options.cutoff.r = UNSET;
Options.cache = TRUE;
Options.shadowtransp = TRUE;
Options.crop[LOW][X] = Options.crop[LOW][Y] = 0.;
Options.crop[HIGH][X] = Options.crop[HIGH][Y] = 1.;
Stats.fstats = stderr;
Options.pictfile = stdout;
#ifdef URT
Options.alpha = TRUE;
Options.exp_output = FALSE;
#endif
Options.gamma = GAMMA;
Options.eyesep = UNSET;
#ifdef LINDA
Options.workers = WORKERS;
#endif
Options.totalframes = 1;
Options.startframe = 0;
Options.starttime = 0.;
Options.framelength = 1.;
Options.shutterspeed = 0.;
TopMedium.index = DEFAULT_INDEX;
TopMedium.statten = 1.0;
NoiseInit(); /* Initialize values for Noise() */
return kQ3Success;
}