Pretty realistic colors

1 files changed, 20 insertions, 3 deletions

diff --git a/scene.c b/scene.c
index a75b329..99ae0e8 100644
--- a/scene.c
+++ b/scene.c
@@ -12,11 +12,13 @@ static inline void link_object(space_t *s, object_t *o)
 	}
 }
 
-object_t *add_sphere(space_t *s, vector_t *c, COORD_T r)
+object_t *add_sphere(space_t *s, vector_t *c, COORD_T r, material_t *m)
 {
 	object_t *o = (object_t *) malloc(sizeof(object_t));
 
 	o->type = TYPE_SPHERE;
+	o->m = m;
+
 	o->sph.center = c;
 	o->sph.radius = r;
 
@@ -38,12 +40,12 @@ object_t *add_plane(space_t *s, vector_t *start, vector_t *dir)
 	return o;
 }
 
-light_t *add_light(space_t *s, vector_t *pos, color_t *c)
+light_t *add_light(space_t *s, vector_t *pos, color_t *defuse)
 {
 	light_t *o = (light_t *) malloc(sizeof(light_t));
 
 	o->pos = pos;
-	o->col = c;
+	o->defuse = defuse;
 
 	if (s) {
 		o->next = s->lights;
@@ -54,3 +56,18 @@ light_t *add_light(space_t *s, vector_t *pos, color_t *c)
 
 	return o;
 }
+
+void obj_norm_at(object_t *o, vector_t *dest, vector_t *point)
+{
+	switch(o->type) {
+		case TYPE_SPHERE:
+			vector_sub(dest, point, o->sph.center);
+			vector_scale_inv(dest, dest, vector_len(dest));
+			break;
+		case TYPE_PLANE:
+			vector_copy(dest, o->pl.norm);
+			break;
+	}
+
+	return;
+}