static errcode GetLight(parsehandle * ph, SceneHandle scene) {
char tmp[255];
apiflt rad, Kc, Kl, Kq;
apivector ctr;
apitexture tex;
float r, g, b, a;
errcode rc;
void * li;
memset(&tex, 0, sizeof(apitexture));
rc = GetString(ph, "CENTER");
rc |= GetVector(ph, &ctr);
rc |= GetString(ph, "RAD");
fscanf(ph->ifp, "%f", &a); /* read in radius */
rad=a;
fscanf(ph->ifp, "%s", tmp);
if (!stringcmp(tmp, "COLOR")) {
fscanf(ph->ifp, "%f %f %f", &r, &g, &b);
tex.col.r=r;
tex.col.g=g;
tex.col.b=b;
li = rt_light(scene, rt_texture(scene, &tex), ctr, rad);
}
else {
if (stringcmp(tmp, "ATTENUATION"))
return -1;
rc |= GetString(ph, "CONSTANT");
fscanf(ph->ifp, "%f", &a);
Kc=a;
rc |= GetString(ph, "LINEAR");
fscanf(ph->ifp, "%f", &a);
Kl=a;
rc |= GetString(ph, "QUADRATIC");
fscanf(ph->ifp, "%f", &a);
Kq=a;
rc |= GetColor(ph, &tex.col);
li = rt_light(scene, rt_texture(scene, &tex), ctr, rad);
rt_light_attenuation(li, Kc, Kl, Kq);
}
return rc;
}
static errcode GetScenedefs(FILE * dfile, SceneHandle scene) {
apivector Ccenter, Cview, Cup;
apiflt zoom, aspectratio;
int raydepth, antialiasing;
rt_outputfile(scene, "outfile.tga");
rt_resolution(scene, 512, 512);
rt_verbose(scene, 0);
zoom=1.0;
aspectratio=1.0;
antialiasing=0;
raydepth=6;
Ccenter.x = 0.0;
Ccenter.y = 0.0;
Ccenter.z = -5.0;
Cview.x = 0.0;
Cview.y = 0.0;
Cview.z = 1.0;
Cup.x = 0.0;
Cup.y = 1.0;
Cup.z = 0.0;
rt_camera_setup(scene, zoom, aspectratio, antialiasing, raydepth,
Ccenter, Cview, Cup);
{ /* lighting hack */
apivector ctr;
apitexture tex;
memset(&tex, 0, sizeof(apitexture));
tex.col.r = 1.0;
tex.col.g = 1.0;
tex.col.b = 1.0;
ctr.x = 0.0;
ctr.y = 0.0;
ctr.z = -100.0;
rt_light(scene, rt_texture(scene, &tex), ctr, 1.0);
}
return PARSENOERR;
}
int NFFGetLight(FILE *dfile, SceneHandle scene) {
apiflt rad;
apivector ctr;
apitexture tex;
float r, g, b;
NFFGetVector(dfile, &ctr);
rad = 1.0; /* XXX hack for now */
r = g = b = 1.0;
fscanf(dfile, "%f %f %f", &r, &g, &b);
tex.col.r = r;
tex.col.g = g;
tex.col.b = b;
rt_light(scene, rt_texture(scene, &tex), ctr, rad);
return NFFNOERR;
}
static errcode GetLight(FILE * dfile) {
apiflt rad;
vector ctr;
apitexture tex;
float a;
errcode rc;
memset(&tex, 0, sizeof(apitexture));
rc = GetString(dfile,"CENTER");
rc |= GetVector(dfile, &ctr);
rc |= GetString(dfile,"RAD");
fscanf(dfile,"%f",&a); /* read in radius */
rad=a;
rc |= GetColor(dfile, &tex.col);
rt_light(rt_texture(&tex), ctr, rad);
return rc;
}
void * rt_light3fv(SceneHandle voidscene, void * tex,
const float *ctr, float rad) {
vector vctr;
vctr.x = ctr[0]; vctr.y = ctr[1]; vctr.z = ctr[2];
return rt_light(voidscene, tex, vctr, rad);
}
int main(int argc, char **argv) {
SceneHandle scene;
int i, j;
apivector Ccenter, Cview, Cup;
apivector ctr1, ctr2;
apitexture tex1, tex2;
void * vtx1, * vtx2;
char fname[100];
rt_initialize(&argc, &argv);
Ccenter.x=0.0; Ccenter.y=0.0; Ccenter.z=-3.0;
Cview.x=0.0; Cview.y=0.0; Cview.z=1.0;
Cup.x=0.0; Cup.y=1.0; Cup.z=0.0;
ctr1.x=20.0; ctr1.y=20.0; ctr1.z=-40.0;
ctr2.x=-20.0; ctr2.y=20.0; ctr2.z=-40.0;
tex1.col.r=1.0;
tex1.col.g=0.5;
tex1.col.b=0.0;
tex1.ambient=1.0;
tex1.opacity=1.0;
tex2=tex1;
tex2.col.r=0.0;
tex2.col.b=1.0;
initspheres();
for (i=0; i<MAXFRAMES; i++) {
scene = rt_newscene();
vtx1=rt_texture(scene, &tex1);
vtx2=rt_texture(scene, &tex2);
sprintf(fname,"outfile.%4.4d.tga",i);
if (rt_mynode()==0) printf("Rendering: %s\n", fname);
rt_outputfile(scene, fname);
rt_resolution(scene, XRES, YRES);
rt_verbose(scene, 0);
rt_camera_setup(scene, 1.0, 1.0, 0, 5, Ccenter, Cview, Cup);
movesp();
drawsp(scene);
rt_light(scene, vtx1, ctr1, 1.0);
rt_light(scene, vtx2, ctr2, 1.0);
rt_renderscene(scene);
rt_deletescene(scene);
for (j=0; j<NUMSP; j++)
free(sp[i].voidtex);
}
rt_finalize();
return 0;
}