From e80adf831d03e64d37cb359796297420c15dbfab Mon Sep 17 00:00:00 2001
From: Aaron Fenyes <aaron.fenyes@fareycircles.ooo>
Date: Wed, 28 Aug 2024 01:59:46 -0700
Subject: [PATCH] Ray-caster: correct hit detection

---
 app-proto/inversive-display/src/inversive.frag | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app-proto/inversive-display/src/inversive.frag b/app-proto/inversive-display/src/inversive.frag
index 5620210..da2f415 100644
--- a/app-proto/inversive-display/src/inversive.frag
+++ b/app-proto/inversive-display/src/inversive.frag
@@ -141,11 +141,11 @@ void main() {
     int frag_cnt = 0;
     for (int i = 0; i < sphere_cnt; ++i) {
         vec2 hit_depths = sphere_cast(sphere_list[i], dir);
-        if (!isnan(hit_depths[0])) {
+        if (hit_depths[0] > 0.) {
             frags[frag_cnt] = sphere_shading(sphere_list[i], hit_depths[0] * dir, color_list[i], i);
             ++frag_cnt;
         }
-        if (!isnan(hit_depths[1])) {
+        if (hit_depths[1] > 0.) {
             frags[frag_cnt] = sphere_shading(sphere_list[i], hit_depths[1] * dir, color_list[i], i);
             ++frag_cnt;
         }