materials: small correction to specular computation.

2021-07-17 10:09:46 -07:00 · 2021-07-17 10:09:46 -07:00 · 6863b4ecd6
commit 6863b4ecd6
parent bad54bb433
1 changed files with 1 additions and 1 deletions
--- a/rtchallenge/src/materials.rs
+++ b/rtchallenge/src/materials.rs
@ -119,7 +119,7 @@ pub fn lighting(
        // from the eye.
        let reflectv = reflect(-lightv, normalv);
        let reflect_dot_eye = dot(reflectv, eyev);
-        let specular = if reflect_dot_eye < 0. {
+        let specular = if reflect_dot_eye <= 0. {
            BLACK
        } else {
            // Compute the specular contribution.