prior normal check for lights

src/scene/generators.rs

@@ -58,8 +58,8 @@ pub fn generate_test_scene(scene: &mut Scene, data: &mut AppData) -> Result<(Poi
         pos: vec3(10.0, 10.0, 10.0),
         color: vec3(0.0, 0.0, 0.9),
         tex_coord: vec2(0.0, 0.0),
-        transparent: true,
-        roughness: 32,
+        transparent: false,
+        roughness: 128,
     };
     oct_tree1.set_cube(cube.clone());
 
@@ -67,8 +67,8 @@ pub fn generate_test_scene(scene: &mut Scene, data: &mut AppData) -> Result<(Poi
         pos: vec3(10.0, 10.0, 9.0),
         color: vec3(0.0, 0.0, 0.9),
         tex_coord: vec2(0.0, 0.0),
-        transparent: true,
-        roughness: 32,
+        transparent: false,
+        roughness: 128,
     };
     oct_tree1.set_cube(cube.clone());