diff options
Diffstat (limited to 'libdimension/raytrace.c')
| -rw-r--r-- | libdimension/raytrace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libdimension/raytrace.c b/libdimension/raytrace.c index 3fa873c..826cc58 100644 --- a/libdimension/raytrace.c +++ b/libdimension/raytrace.c @@ -323,7 +323,8 @@ dmnsn_raytrace_light_ray(const dmnsn_raytrace_state *state, shadow_ray = dmnsn_line_add_epsilon(shadow_ray); /* Check if we're casting a shadow on ourself */ - if (dmnsn_vector_dot(shadow_ray.n, state->intersection->normal) < 0.0) + if (dmnsn_vector_dot(shadow_ray.n, state->intersection->normal) + * dmnsn_vector_dot(state->viewer, state->intersection->normal) < 0.0) return dmnsn_black; dmnsn_color color = (*light->light_fn)(light, state->r); |