Add existing to tracked

node_modules/@cesium/engine/Source/Shaders/Voxels/VoxelUtils.glsl

@@ -0,0 +1,12 @@
+struct Ray {
+    vec3 pos;
+    vec3 dir;
+};
+
+float minComponent(in vec3 v) {
+    return min(min(v.x, v.y), v.z);
+}
+
+float maxComponent(in vec3 v) {
+    return max(max(v.x, v.y), v.z);
+}