diff --git a/example/assets/index.glb b/example/assets/index.glb
index e45c67d..e4e8ce4 100644
Binary files a/example/assets/index.glb and b/example/assets/index.glb differ
diff --git a/src/3rd/js/three/xrf/t.js b/src/3rd/js/three/xrf/t.js
index 428fee8..5716ff2 100644
--- a/src/3rd/js/three/xrf/t.js
+++ b/src/3rd/js/three/xrf/t.js
@@ -4,6 +4,7 @@ xrf.frag.t = function(v, opts){
   if( !model.animations || model.animations[0] == undefined ) return console.warn('no animation in scene')
 
   xrf.mixers.map ( (mixer) => {
+    
     mixer.t = v
     
     // update speed
@@ -27,22 +28,26 @@ xrf.addEventListener('parseModel', (opts) => {
   let {model} = opts
   let mixer   = model.mixer = new xrf.THREE.AnimationMixer(model.scene)
   mixer.model = model
-  mixer.loop      = {}
+  mixer.loop      = {timeStart:0,timeStop:0}
   mixer.i         = xrf.mixers.length
+  mixer.actions   = []
 
   model.animations.map( (anim) => { 
-    anim.action = mixer.clipAction( anim, model.scene )
+    anim.optimize()
+    mixer.actions.push( mixer.clipAction( anim, model.scene ) )
   })
 
+
   mixer.checkZombies = (animations) => {
     if( mixer.zombieCheck ) return // fire only once
     animations.map( (anim) => {  
       // collect zombie animations and warn user
       let zombies = anim.tracks.map( (t) => {
         let name = t.name.replace(/\..*/,'')
-        return !model.scene.getObjectByName(name) ? {anim:anim.name,obj:t.name} : undefined 
+        let obj  = model.scene.getObjectByName(name)
+        return !model.scene.getObjectByName(name) ? {anim:anim.name,obj:name} : undefined 
       })
-      if( zombies.length > 0 ){
+      if( zombies.length > 0 && mixer.i == 0 ){ // only warn for zombies in main scene (because src-scenes might be filtered anyways)
         zombies
         .filter( (z) => z ) // filter out undefined
         .map( (z) => console.warn(`gltf: object '${z.obj}' not found (anim: '${z.anim}'`) )
@@ -65,15 +70,15 @@ xrf.addEventListener('parseModel', (opts) => {
   mixer.updateLoop = (t) => {
     mixer.loop.timeStart = t.y != undefined ? t.y : mixer.loop.timeStart
     mixer.loop.timeStop  = t.z != undefined ? t.z : mixer.loop.timeStop
-    mixer.model.animations.map( (anim) => { 
+    mixer.actions.map( (action) => { 
       if( mixer.loop.timeStart != undefined ){
-        //if( anim.action ) delete anim.action 
-        //anim.action = mixer.clipAction( anim )
-        anim.action.time = mixer.loop.timeStart
-        anim.action.setLoop( THREE.LoopOnce, )
-        anim.action.timeScale = mixer.timeScale
-        anim.action.enabled = true
-        if( t.x != 0 ) anim.action.play() 
+        action.time = mixer.loop.timeStart
+        action.setLoop( THREE.LoopOnce, )
+        action.timeScale = mixer.timeScale
+        action.enabled = true
+        if( t.x != 0 ){ 
+          action.play() 
+        }
       }
     })
     mixer.setTime(mixer.loop.timeStart)
@@ -90,7 +95,7 @@ xrf.addEventListener('parseModel', (opts) => {
       if( time == 0 ) return update.call(this,time)
 
       // loop jump
-      if( mixer.loop.speed > 0.0 && mixer.time > mixer.loop.timeStop ){ 
+      if( mixer.loop.speed > 0.0 && (mixer.loop.timeStop > 0 && mixer.time > mixer.loop.timeStop) ){ 
         setTimeout( (time,anims) => mixer.updateLoop(time), 0, mixer.loop.timeStart ) // prevent recursion
       }
       return update.call( this, time )
diff --git a/test/aframe/filter.js b/test/aframe/filter.js
index 6c9067b..3aaea54 100644
--- a/test/aframe/filter.js
+++ b/test/aframe/filter.js
@@ -1,4 +1,4 @@
-// test the XR Fragments parser-filters with THREEjs scenes 
+// test the XR Fragments parser-filters with THREEjs scns 
 THREE = AFRAME.THREE
 
 createScene = (noadd) => {
@@ -6,6 +6,7 @@ createScene = (noadd) => {
   for ( let i in obj ){
     obj[i] = new THREE.Object3D()
     obj[i].name = i
+    obj[i].material = {visible:true, clone: () => ({visible:true}) }
   }
   let {a,b,c} = obj
   let scene = new THREE.Scene()
@@ -15,6 +16,11 @@ createScene = (noadd) => {
     scene.add(a)
   }
   b.userData.score = 2
+  b.userData.tag = "foo bar"
+  c.userData.tag = "flop flap"
+  a.userData.price = 1
+  b.userData.price = 5
+  c.userData.price = 10
   return {a,b,c,scene}
 }
 
@@ -22,84 +28,78 @@ filterScene = (URI) => {
   frag = xrf.URI.parse(URI)
   var {a,b,c,scene} = createScene()
   xrf.filter.scene({scene,frag})
+
+  scene.visible = (objname, expected, checkMaterial) => {
+    let o = scene.getObjectByName(objname)
+    if( !o ) return false === expected 
+    let is = checkMaterial ? o.material.visible : o.visible 
+    if( is !== expected ) console.dir(o)
+    return is === expected
+  }
+
   return scene
 }
 
-scene = filterScene("#b")
-test = () => !scene.getObjectByName("a") && 
-              scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #b => a = removed b = visible c = removed`})
+scn       = filterScene("#b")
+test      = () => !scn.visible("a") && scn.visible("b",true) && scn.visible("c",true) 
+console.assert( test(), {scn,reason:`objectname: #b `})
 
-scene = filterScene("#b*")
-test = () => !scene.getObjectByName("a") && 
-              scene.getObjectByName("b").visible && 
-              scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #b* => a = removed b = visible c = visible`})
+scn = filterScene("#-b")
+test = () =>  scn.visible("a",true) && scn.visible("b",false) && scn.visible("c",false)
+console.assert( test(), {scn,reason:`objectname: #-b `})
 
-scene = filterScene("#-b")
-test = () =>  scene.getObjectByName("a").visible && 
-             !scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #-b => a = visible b = invisible c = invisible`})
+scn = filterScene("#a&-b")
+test = () =>  scn.visible("a",true) && scn.visible("b",false) && scn.visible("c",false)
+console.assert( test(), {scn,reason:`objectname: #a&-b `})
 
-scene = filterScene("#a&-b")
-test = () =>  scene.getObjectByName("a").visible && 
-             !scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #a&-b => a = visible b = invisible c = invisible`})
+scn = filterScene("#-b&b") 
+test = () => scn.visible("a",false) && scn.visible("b",true) && scn.visible("c",true)
+console.assert( test(), {scn,reason:`objectname: #-b&b `})
 
-scene = filterScene("#-b&b") 
-test = () => !scene.getObjectByName("a") && 
-              scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #-b&b => a = removed b = invisible c = invisible (last duplicate wins)`})
+scn = filterScene("#-c") 
+test = () =>  scn.visible("a",true) && scn.visible("b",true) && scn.visible("c",false)
+console.assert( test(), {scn,reason:`objectname: #-c `})
 
-scene = filterScene("#-c") 
-test = () =>  scene.getObjectByName("a").visible && 
-              scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #-b&b => a = visible b = visible c = invisible`})
+scn = filterScene("#score") 
+test = () => scn.visible("a",true) && scn.visible("b",true) && scn.visible("c",true)
+console.assert( test(), {scn,reason:`propertyfilter: #score `})
 
-scene = filterScene("#-b*") 
-test = () =>  scene.getObjectByName("a").visible && 
-             !scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #-b&b => a = visible b = visible c = invisible`})
+scn = filterScene("#score=>1") 
+test = () => scn.visible("a",true) && scn.visible("b",true) && scn.visible("c",true)
+console.assert( test(), {scn,reason:`propertyfilter: #score`})
 
-scene = filterScene("#score") 
-console.dir(scene)
-test = () => !scene.getObjectByName("a") && 
-             scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #score => a = removed b = visible c = invisible`})
+scn = filterScene("#score=2") 
+test = () => scn.visible("a",true) && scn.visible("b",true) && scn.visible("c",true)
+console.assert( test(), {scn,reason:`propertyfilter: #score`})
 
-scene = filterScene("#score=>1") 
-test = () => !scene.getObjectByName("a") && 
-             scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #score=>1 => a = removed b = visible c = invisible`})
+scn = filterScene("#score=>3") 
+test = () => scn.visible("a",true) && scn.visible("b",false) && scn.visible("c",false)
+console.assert( test(), {scn,reason:`propertyfilter: #score`})
 
-scene = filterScene("#score=>3") 
-test = () => !scene.getObjectByName("a") && 
-             !scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #score=>3 => a = invisible b = visible c = invisible`})
+scn = filterScene("#-score=>1") 
+test = () => scn.visible("a",true) && scn.visible("b",false) && scn.visible("c",false)
+console.assert( test(), {scn,reason:`propertyfilter: #-score`})
 
-scene = filterScene("#score*=>1") 
-test = () => !scene.getObjectByName("a") && 
-              scene.getObjectByName("b").visible && 
-              scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #score*=>1 => a = invisible b = visible c = visible`})
+scn = filterScene("#-score=>1&c") 
+test = () => scn.visible("a",true) && scn.visible("b",true) && scn.visible("b",false,true) && scn.visible("c",true)
+console.assert( test(), {scn,reason:`propertyfilter: #-score`})
 
-scene = filterScene("#-score*=>1") 
-test = () =>  scene.getObjectByName("a").visible && 
-             !scene.getObjectByName("b").visible && 
-             !scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #-score*=>1 => a = visible b = invisible c = invisible`})
+scn = filterScene("#-foo")
+test = () => scn.visible("a",true) && scn.visible("b",false) && scn.visible("b",false)
+console.assert( test(), {scn,reason:`tagfilter: #-foo `})
 
-scene = filterScene("#-score*=>1&c") 
-test = () =>  scene.getObjectByName("a").visible && 
-             !scene.getObjectByName("b").visible && 
-              scene.getObjectByName("c").visible
-console.assert( test(), {scene,reason:`objectname: #-score*=>1 => a = visible b = invisible c = visible`})
+scn = filterScene("#-c&flop")
+test = () => scn.visible("a",true) && scn.visible("b",true) && scn.visible("c",true)
+console.assert( test(), {scn,reason:`tagfilter: #-c&flop`})
+
+scn = filterScene("#-b&-foo&bar&flop")
+test = () => scn.visible("a",true) && scn.visible("b",true) && scn.visible("c",true)
+console.assert( test(), {scn,reason:`tagfilter: #-b&-foo&bar&flop`})
+
+scn = filterScene("#-b&-foo&bar&flop&-bar&flop")
+test = () => scn.visible("a",true) && scn.visible("b",false,true) && scn.visible("c",true)
+console.assert( test(), {scn,reason:`tagfilter: #-b&-foo&bar&flop&-bar&flop"`})
+
+scn = filterScene("#-price&price=>4")
+test = () => scn.visible("a",false,true) && scn.visible("b",true) && scn.visible("c",true)
+console.assert( test(), {scn,reason:`tagfilter: #-price&price=>4"`})
diff --git a/test/aframe/index.js b/test/aframe/index.js
index 02129be..80c98dc 100644
--- a/test/aframe/index.js
+++ b/test/aframe/index.js
@@ -8,7 +8,7 @@
 
 
 console.assert = ((assert) => (a,b) => {
-  console.log('♥ test: '+b.reason)
+  console.log("\x1b[34m♥ \x1b[36;49mtest: "+b.reason+"\x1B[m")
   assert.call( console, a, b )
 })(console.assert)