71     vector N, L, hit;  in shader()  local
92     RAYPNT(hit, (*incident), t) /* find the point of intersection from t */  in shader()
93     obj->methods->normal(obj, &hit, incident, &N); /* find the surface normal */  in shader()
96     col = obj->tex->texfunc(&hit, obj->tex, incident);  in shader()
106             VSUB(li->ctr, hit, L) /* find the light vector */  in shader()
125                 shadowray.o = hit;  in shader()
128                 shadowray.s = hit;  in shader()
141                         phongval = shade_phong(incident, &hit, &N, &L, obj->tex->phongexp);  in shader()
166         specol = shade_reflection(incident, &hit, &N, obj->tex->specular);  in shader()
174         transcol = shade_transmission(incident, &hit, 1.0 - obj->tex->opacity);  in shader()
181 color shade_reflection(ray* incident, vector* hit, vector* N, flt specular) {  in shade_reflection()  argument
196     specray.o = *hit;  in shade_reflection()
210 color shade_transmission(ray* incident, vector* hit, flt trans) {  in shade_transmission()  argument
219     transray.o = *hit;  in shade_transmission()
233 flt shade_phong(ray* incident, vector* hit, vector* N, vector* L, flt specpower) {  in shade_phong()  argument