83     scalarvol *vol;  in newscalarvol()  local
92         vol = (scalarvol *)rt_getmem(sizeof(scalarvol));  in newscalarvol()
93         vol->loaded = 0;  in newscalarvol()
94         vol->data = nullptr;  in newscalarvol()
97         vol = invol;  in newscalarvol()
99     vol->opacity = tex->opacity;  in newscalarvol()
100     vol->xres = xs;  in newscalarvol()
101     vol->yres = ys;  in newscalarvol()
102     vol->zres = zs;  in newscalarvol()
103     strcpy(vol->name, fname);  in newscalarvol()
121     tx->img = vol;  in newscalarvol()
167     scalarvol *vol;  in scalar_volume_texture()  local
173     vol = (scalarvol *)bx->tex->img;  in scalar_volume_texture()
251     tdist = sqrt((flt)(vol->xres * vol->xres + vol->yres * vol->yres + vol->zres * vol->zres));  in scalar_volume_texture()
252     tt = (vol->opacity / tdist);  in scalar_volume_texture()
262     if (!vol->loaded) {  in scalar_volume_texture()
263         LoadVol(vol);  in scalar_volume_texture()
264         vol->loaded = 1;  in scalar_volume_texture()
272         x = (int)((vol->xres - 1.5) * pnt.x + 0.5);  in scalar_volume_texture()
273         y = (int)((vol->yres - 1.5) * pnt.y + 0.5);  in scalar_volume_texture()
274         z = (int)((vol->zres - 1.5) * pnt.z + 0.5);  in scalar_volume_texture()
276         ptr = vol->data + ((vol->xres * vol->yres * z) + (vol->xres * y) + x);  in scalar_volume_texture()
311 void LoadVol(scalarvol *vol) {  in LoadVol()  argument
316     dfile = fopen(vol->name, "r");  in LoadVol()
319         sprintf(msgtxt, "Vol: can't open %s for input!!! Aborting\n", vol->name);  in LoadVol()
326         msgtxt, "loading %dx%dx%d volume set from %s", vol->xres, vol->yres, vol->zres, vol->name);  in LoadVol()
329     vol->data = (unsigned char *)rt_getmem(vol->xres * vol->yres * vol->zres);  in LoadVol()
331     status = fread(vol->data, 1, (vol->xres * vol->yres * vol->zres), dfile);  in LoadVol()