182     ray specray;  in shade_reflection()  local
191     specray.intstruct = incident->intstruct; /* what thread are we */  in shade_reflection()
192     specray.depth = incident->depth - 1; /* go up a level in recursion depth */  in shade_reflection()
193     specray.flags = RT_RAY_REGULAR; /* infinite ray, to start with */  in shade_reflection()
194     specray.serial = incident->serial + 1; /* next serial number */  in shade_reflection()
195     specray.mbox = incident->mbox;  in shade_reflection()
196     specray.o = *hit;  in shade_reflection()
197     specray.d = R; /* reflect incident ray about normal */  in shade_reflection()
198     specray.o = Raypnt(&specray, EPSILON); /* avoid numerical precision bugs */  in shade_reflection()
199     specray.maxdist = FHUGE; /* take any intersection */  in shade_reflection()
200     specray.scene = incident->scene; /* global scenedef info */  in shade_reflection()
201     col = trace(&specray); /* trace specular reflection ray */  in shade_reflection()
203     incident->serial = specray.serial; /* update the serial number */  in shade_reflection()