diff --git a/src/core/Camera.ts b/src/core/Camera.ts
index 2a5c6a8..b24bfc3 100644
--- a/src/core/Camera.ts
+++ b/src/core/Camera.ts
@@ -1,11 +1,7 @@
-import { Camera } from 'three'
 import { defineComponent, inject } from 'vue'
+import { ThreeInterface } from './useThree'
 // import Object3D from './Object3D'
 
-interface ThreeInterface {
-  camera?: Camera
-}
-
 export default defineComponent({
   // TODO: eventually extend Object3D
   // extends: Object3D,
diff --git a/src/core/Raycaster.ts b/src/core/Raycaster.ts
index baacc96..464038e 100644
--- a/src/core/Raycaster.ts
+++ b/src/core/Raycaster.ts
@@ -1,26 +1,40 @@
 import { Object3D } from 'three'
-import { defineComponent } from 'vue'
-import usePointer, { PointerIntersectCallbackType } from './usePointer'
+import { defineComponent, inject, PropType } from 'vue'
+import usePointer, { IntersectObject, PointerInterface, PointerIntersectCallbackType } from './usePointer'
+import { RendererInterface } from './Renderer'
+import { ThreeInterface } from './useThree'
 
 // eslint-disable-next-line @typescript-eslint/no-empty-function
 const emptyCallBack: PointerIntersectCallbackType = () => {}
 
+interface RaycasterSetupInterface {
+  renderer: RendererInterface
+  three: ThreeInterface
+  pointer?: PointerInterface
+}
+
 export default defineComponent({
   name: 'Raycaster',
-  inject: ['three', 'renderer'],
   props: {
-    onPointerEnter: { type: Function, default: emptyCallBack },
-    onPointerOver: { type: Function, default: emptyCallBack },
-    onPointerMove: { type: Function, default: emptyCallBack },
-    onPointerLeave: { type: Function, default: emptyCallBack },
-    onClick: { type: Function, default: emptyCallBack },
+    onPointerEnter: { type: Function as PropType<PointerIntersectCallbackType>, default: emptyCallBack },
+    onPointerOver: { type: Function as PropType<PointerIntersectCallbackType>, default: emptyCallBack },
+    onPointerMove: { type: Function as PropType<PointerIntersectCallbackType>, default: emptyCallBack },
+    onPointerLeave: { type: Function as PropType<PointerIntersectCallbackType>, default: emptyCallBack },
+    onClick: { type: Function as PropType<PointerIntersectCallbackType>, default: emptyCallBack },
     intersectMode: { type: String, default: 'move' },
   },
+  setup(): RaycasterSetupInterface {
+    const renderer = inject('renderer') as RendererInterface
+    const three = inject('three') as ThreeInterface
+    return { renderer, three }
+  },
   mounted() {
     this.renderer.onMounted(() => {
+      if (!this.three.camera) return
+
       this.pointer = usePointer({
         camera: this.three.camera,
-        domElement: this.three.renderer.domElement,
+        domElement: this.renderer.canvas,
         intersectObjects: this.getIntersectObjects(),
         onIntersectEnter: (<PointerIntersectCallbackType> this.onPointerEnter),
         onIntersectOver: (<PointerIntersectCallbackType> this.onPointerOver),
@@ -43,7 +57,11 @@ export default defineComponent({
   },
   methods: {
     getIntersectObjects() {
-      return this.three.scene.children.filter((c: Object3D) => ['Mesh', 'InstancedMesh'].includes(c.type))
+      if (this.three.scene) {
+        const children = this.three.scene.children.filter((c: Object3D) => ['Mesh', 'InstancedMesh'].includes(c.type))
+        return children as IntersectObject[]
+      }
+      return []
     },
   },
   render() {
diff --git a/src/core/Renderer.ts b/src/core/Renderer.ts
index b13759d..4893226 100644
--- a/src/core/Renderer.ts
+++ b/src/core/Renderer.ts
@@ -1,8 +1,8 @@
 import { WebGLRenderer } from 'three'
 import { defineComponent } from 'vue'
-import useThree, { ThreeConfigInterface, ThreeInterface } from './useThree'
+import useThree, { SizeInterface, ThreeConfigInterface, ThreeInterface } from './useThree'
 
-type CallbackType<T> = (e: T) => void
+type CallbackType<T> = (e?: T) => void
 
 interface EventInterface<T> {
   renderer: T
@@ -12,19 +12,31 @@ interface RenderEventInterface<T> extends EventInterface<T> {
   time: number
 }
 
-export interface RendererInterface {
+interface RendererSetupInterface {
   canvas: HTMLCanvasElement
   three: ThreeInterface
   renderer: WebGLRenderer
+  size: SizeInterface
   renderFn(): void
   raf: boolean
   onMountedCallbacks: CallbackType<EventInterface<this>>[]
   beforeRenderCallbacks: CallbackType<RenderEventInterface<this>>[]
   afterRenderCallbacks: CallbackType<RenderEventInterface<this>>[]
+  // pointerPosition?: Vector2
+  // pointerPositionN?: Vector2
+  // pointerPositionV3?: Vector3
 }
 
-type MountedCallbackType = CallbackType<EventInterface<RendererInterface>>
-type RenderCallbackType = CallbackType<RenderEventInterface<RendererInterface>>
+export interface RendererInterface extends RendererSetupInterface {
+  onMounted(cb: CallbackType<EventInterface<this>>): void
+  onBeforeRender(cb: CallbackType<RenderEventInterface<this>>): void
+  offBeforeRender(cb: CallbackType<RenderEventInterface<this>>): void
+  onAfterRender(cb: CallbackType<RenderEventInterface<this>>): void
+  offAfterRender(cb: CallbackType<RenderEventInterface<this>>): void
+}
+
+// type MountedCallbackType = CallbackType<EventInterface<RendererSetupInterface>>
+// type RenderCallbackType = CallbackType<RenderEventInterface<RendererSetupInterface>>
 
 export default defineComponent({
   name: 'Renderer',
@@ -42,7 +54,7 @@ export default defineComponent({
     onReady: Function,
     // onFrame: Function,
   },
-  setup(props): RendererInterface {
+  setup(props): RendererSetupInterface {
     const canvas = document.createElement('canvas')
     const config: ThreeConfigInterface = {
       canvas,
@@ -69,6 +81,7 @@ export default defineComponent({
       canvas,
       three,
       renderer: three.renderer,
+      size: three.size,
       renderFn,
       raf: true,
       onMountedCallbacks,
@@ -88,6 +101,13 @@ export default defineComponent({
 
     if (this.three.init()) {
       this.onReady?.(this)
+
+      // if (this.three.pointer) {
+      //   this.pointerPosition = this.three.pointer.position
+      //   this.pointerPositionN = this.three.pointer.positionN
+      //   this.pointerPositionV3 = this.three.pointer.positionV3
+      // }
+
       this.renderer.shadowMap.enabled = this.shadow
 
       this.renderFn = this.three.composer ? this.three.renderC : this.three.render
diff --git a/src/core/Scene.ts b/src/core/Scene.ts
index ecbc487..6f71a97 100644
--- a/src/core/Scene.ts
+++ b/src/core/Scene.ts
@@ -1,20 +1,22 @@
-import { defineComponent, watch } from 'vue'
+import { defineComponent, inject, watch } from 'vue'
 import { Scene, Color, Object3D } from 'three'
+import { ThreeInterface } from './useThree'
 
 export default defineComponent({
   name: 'Scene',
-  inject: ['three'],
+  // inject: ['three'],
   props: {
-    id: String,
+    // id: String,
     background: [String, Number],
   },
   setup(props) {
+    const three = inject('three') as ThreeInterface
     const scene = new Scene()
     if (props.background) {
       scene.background = new Color(props.background)
     }
     watch(() => props.background, (value) => { if (scene.background instanceof Color && value) scene.background.set(value) })
-    return { scene }
+    return { three, scene }
   },
   provide() {
     return {