fix shadow coplanar with bottom z

2025-12-08 17:35:21 -05:00 · 2025-12-08 17:35:21 -05:00 · cd7c0f7597
commit cd7c0f7597
parent 8fb0574894
2 changed files with 3 additions and 1 deletions
--- a/src/kiri/core/widget.js
+++ b/src/kiri/core/widget.js
@ -913,6 +913,8 @@ class Widget {
            if (a.z < z && b.z < z && c.z < z) {
                // skip faces under threshold
                continue;
+            } else if (a.z === z && a.z === b.z && a.z === c.z) {
+                // skip faces coplanar with z (shadow looks up)
            } else if (a.z >= z && b.z >= z && c.z >= z) {
                found.push([a, b, c]);
            } else {