diff --git a/index.html b/index.html
index 3b5c13c..b567d3b 100644
--- a/index.html
+++ b/index.html
@@ -16,17 +16,21 @@
 <script type="module">
 import { load, setCamera, render } from './main.js';
 
-let file = "a";
-let state = null;
-let position = null;
-let target = null;
+const layers = window.layers = {};
 AviUtlBrowser.registerRenderer(async params => {
-  if (file !== params.userfile) {
-    file = params.userfile;
-    if (file == null) {
-      state = await load(null, null);
+  const [layer, t, px, py, pz, tx, ty, tz, r, fov] = params.param.split(" ").map((v, idx) => parseFloat(v));
+  const l = layers[layer] = (layers[layer] || {
+    state: null,
+    position: null,
+    target: null,
+    file: "a",
+  });
+  if (l.file !== params.userfile) {
+    l.file = params.userfile;
+    if (l.file == null) {
+      l.state = await load(null, null);
     } else {
-      state = await load(await fetch('/userfile').then(r => r.arrayBuffer()), {
+      l.state = await load(await fetch('/userfile').then(r => r.arrayBuffer()), {
         hdr: await fetch('/assets/studio_small_08_4k.hdr').then(r => r.arrayBuffer()),
         luts:{
           lut_ggx_file: '/assets/lut_ggx.png',
@@ -34,26 +38,24 @@
           lut_sheen_E_file: '/assets/lut_sheen_E.png',
         },
       });
-      state.renderingParameters.renderEnvironmentMap = false;
+      l.state.renderingParameters.renderEnvironmentMap = false;
     }
-    position = state.userCamera.getPosition();
-    target = state.userCamera.getTarget();
-    window.state = state;
+    l.position = l.state.userCamera.getPosition();
+    l.target = l.state.userCamera.getTarget();
   }
 
-  const [t, px, py, pz, tx, ty, tz, r, fov] = params.param.split(" ").map((v, idx) => parseFloat(v));
   if (t) {
-    state.animationTimer.setFixedTime(t);
+    l.state.animationTimer.setFixedTime(t);
   } else {
-    state.animationTimer.paused = true;
-    state.animationTimer.pausedTime = 0;
+    l.state.animationTimer.paused = true;
+    l.state.animationTimer.pausedTime = 0;
   }
-  setCamera(state,
-    [position[0] + px, position[1] + py, position[2] + pz],
-    [target[0] + tx, target[1] + ty, target[2] + tz],
+  setCamera(l.state,
+    [l.position[0] + px, l.position[1] + py, l.position[2] + pz],
+    [l.target[0] + tx, l.target[1] + ty, l.target[2] + tz],
     r*Math.PI/180);
-  state.userCamera.setVerticalFoV(fov*Math.PI/180);
-  render(state);
+    l.state.userCamera.setVerticalFoV(fov*Math.PI/180);
+  render(l.state);
   return '';
 });
 </script>
diff --git a/lua/@GLB.anm b/lua/@GLB.anm
index cee092a..ed45659 100644
--- a/lua/@GLB.anm
+++ b/lua/@GLB.anm
@@ -10,7 +10,7 @@ obj.load("tempbuffer")
 require("browser").execute({
   dir = "GLB",
   tabid = "",
-  param = string.format("%f %f %f %f %f %f %f %f %f", obj.time, p[1], p[2], p[3], t[1], t[2], t[3], r, f),
+  param = string.format("%f %f %f %f %f %f %f %f %f %f", obj.layer, obj.time, p[1], p[2], p[3], t[1], t[2], t[3], r, f),
   userfile = file,
   dev = obj.check0,
 });