diff --git a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt
index 8624f141..f5704cb7 100644
--- a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt
+++ b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt
@@ -7,7 +7,6 @@ import hep.dataforge.vision.Vision
 import hep.dataforge.vision.VisionGroup
 import hep.dataforge.vision.bootstrap.*
 import hep.dataforge.vision.gdml.toVision
-import hep.dataforge.vision.react.component
 import hep.dataforge.vision.react.objectTree
 import hep.dataforge.vision.solid.Solid
 import hep.dataforge.vision.solid.SolidGroup
@@ -22,11 +21,8 @@ import kscience.gdml.GDML
 import kscience.gdml.decodeFromString
 import org.w3c.files.FileReader
 import org.w3c.files.get
-import react.RProps
+import react.*
 import react.dom.h1
-import react.getValue
-import react.setValue
-import react.useState
 import styled.css
 
 external interface GDMLAppProps : RProps {
@@ -44,7 +40,7 @@ external interface GDMLAppProps : RProps {
 //}
 
 @JsExport
-val GDMLApp = component<GDMLAppProps> { props ->
+val GDMLApp = functionalComponent<GDMLAppProps>("GDMLApp") { props ->
     var selected by useState { props.selected }
     var canvas: ThreeCanvas? by useState { null }
     var vision: Vision? by useState { props.rootObject }
@@ -113,16 +109,14 @@ val GDMLApp = component<GDMLAppProps> { props ->
                     +"order-xl-2"
                 }
                 //canvas
-                (vision as? Solid)?.let { visual3D ->
-                    child(ThreeCanvasComponent::class) {
-                        attrs {
-                            this.context = props.context
-                            this.obj = visual3D
-                            this.selected = selected
-                            this.clickCallback = select
-                            this.canvasCallback = {
-                                canvas = it
-                            }
+                child(ThreeCanvasComponent) {
+                    attrs {
+                        this.context = props.context
+                        this.obj = vision as? Solid
+                        this.selected = selected
+                        this.clickCallback = select
+                        this.canvasCallback = {
+                            canvas = it
                         }
                     }
                 }
diff --git a/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt b/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt
index d492b325..527c2b77 100644
--- a/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt
+++ b/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt
@@ -8,7 +8,6 @@ import hep.dataforge.names.length
 import hep.dataforge.vision.Vision
 import hep.dataforge.vision.bootstrap.canvasControls
 import hep.dataforge.vision.bootstrap.card
-import hep.dataforge.vision.react.component
 import hep.dataforge.vision.react.configEditor
 import hep.dataforge.vision.react.objectTree
 import hep.dataforge.vision.solid.specifications.Camera
@@ -20,11 +19,10 @@ import io.ktor.client.request.get
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
 import kotlinx.html.js.onClickFunction
-import react.RProps
+import react.*
 import react.dom.*
-import react.getValue
-import react.setValue
-import react.useState
+import styled.css
+import styled.styledDiv
 import kotlin.math.PI
 
 external interface MMAppProps : RProps {
@@ -43,8 +41,8 @@ private val canvasConfig = Canvas3DOptions {
 }
 
 @JsExport
-val MMApp = component<MMAppProps> { props ->
-    var selected by useState  { props.selected }
+val MMApp = functionalComponent<MMAppProps>("Muon monitor") { props ->
+    var selected by useState { props.selected }
     var canvas: ThreeCanvas? by useState { null }
 
     val select: (Name?) -> Unit = {
@@ -59,7 +57,12 @@ val MMApp = component<MMAppProps> { props ->
         }
     }
     div("row") {
-        div("col-lg-3 px-0 overflow-auto") {
+        styledDiv {
+            css {
+                +"col-lg-3"
+                +"px-0"
+                +"overflow-auto"
+            }
             //tree
             card("Object tree") {
                 objectTree(root, selected, select)
@@ -67,7 +70,7 @@ val MMApp = component<MMAppProps> { props ->
         }
         div("col-lg-6") {
             //canvas
-            child(ThreeCanvasComponent::class) {
+            child(ThreeCanvasComponent) {
                 attrs {
                     this.context = props.context
                     this.obj = root
diff --git a/playground/src/jsMain/kotlin/PlayGroundApp.kt b/playground/src/jsMain/kotlin/PlayGroundApp.kt
index ea95c926..72196672 100644
--- a/playground/src/jsMain/kotlin/PlayGroundApp.kt
+++ b/playground/src/jsMain/kotlin/PlayGroundApp.kt
@@ -3,16 +3,25 @@ import hep.dataforge.js.Application
 import hep.dataforge.js.startApplication
 import hep.dataforge.vision.bootstrap.visionPropertyEditor
 import hep.dataforge.vision.react.objectTree
-import hep.dataforge.vision.solid.Point3D
-import hep.dataforge.vision.solid.SolidGroup
-import hep.dataforge.vision.solid.box
-import hep.dataforge.vision.solid.group
+import hep.dataforge.vision.solid.*
+import hep.dataforge.vision.solid.specifications.Canvas3DOptions
+import hep.dataforge.vision.solid.three.ThreeCanvasComponent
 import hep.dataforge.vision.solid.three.ThreePlugin
-import hep.dataforge.vision.solid.three.threeCanvas
+import kotlinx.browser.document
 import org.w3c.dom.HTMLElement
+import react.RBuilder
+import react.child
 import react.dom.div
 import react.dom.render
-import kotlin.browser.document
+
+public fun RBuilder.threeCanvas(object3D: Solid, options: Canvas3DOptions.() -> Unit = {}) {
+    child(ThreeCanvasComponent) {
+        attrs {
+            this.obj = object3D
+            this.options = Canvas3DOptions.invoke(options)
+        }
+    }
+}
 
 private class PlayGroundApp : Application {
 
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/ConfigEditor.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/ConfigEditor.kt
index 8c749d47..9d9078f7 100644
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/ConfigEditor.kt
+++ b/ui/react/src/main/kotlin/hep/dataforge/vision/react/ConfigEditor.kt
@@ -19,29 +19,29 @@ public external interface ConfigEditorItemProps : RProps {
     /**
      * Root config object - always non null
      */
-    var root: Config
+    public var root: Config
 
     /**
      * Full path to the displayed node in [root]. Could be empty
      */
-    var name: Name
+    public var name: Name
 
     /**
      * Root default
      */
-    var default: Meta?
+    public var default: Meta?
 
     /**
      * Root descriptor
      */
-    var descriptor: NodeDescriptor?
+    public var descriptor: NodeDescriptor?
 }
 
-private val ConfigEditorItem: FunctionalComponent<ConfigEditorItemProps> = component { props ->
+private val ConfigEditorItem: FunctionalComponent<ConfigEditorItemProps> = functionalComponent("ConfigEditorItem") { props ->
     configEditorItem(props)
 }
 
-private fun RFBuilder.configEditorItem(props: ConfigEditorItemProps) {
+private fun RBuilder.configEditorItem(props: ConfigEditorItemProps) {
     var expanded: Boolean by useState { true }
     var item: MetaItem<Config>? by useState { props.root[props.name] }
     val descriptorItem: ItemDescriptor? = props.descriptor?.get(props.name)
@@ -198,7 +198,7 @@ public external interface ConfigEditorProps : RProps {
 }
 
 @JsExport
-public val ConfigEditor: FunctionalComponent<ConfigEditorProps> = component { props ->
+public val ConfigEditor: FunctionalComponent<ConfigEditorProps> = functionalComponent("ConfigEditor") { props ->
     child(ConfigEditorItem) {
         attrs {
             this.key = ""
@@ -223,7 +223,7 @@ public fun Element.configEditor(config: Config, descriptor: NodeDescriptor? = nu
     }
 }
 
-fun RBuilder.configEditor(config: Config, descriptor: NodeDescriptor? = null, default: Meta? = null, key: Any? = null) {
+public fun RBuilder.configEditor(config: Config, descriptor: NodeDescriptor? = null, default: Meta? = null, key: Any? = null) {
     child(ConfigEditor) {
         attrs {
             this.key = key?.toString() ?: ""
@@ -234,7 +234,7 @@ fun RBuilder.configEditor(config: Config, descriptor: NodeDescriptor? = null, de
     }
 }
 
-fun RBuilder.configEditor(
+public fun RBuilder.configEditor(
     obj: Configurable,
     descriptor: NodeDescriptor? = obj.descriptor,
     default: Meta? = null,
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/MetaViewer.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/MetaViewer.kt
index fbf6dcc5..9c17206d 100644
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/MetaViewer.kt
+++ b/ui/react/src/main/kotlin/hep/dataforge/vision/react/MetaViewer.kt
@@ -21,24 +21,24 @@ public external interface MetaViewerProps : RProps {
     /**
      * Root meta
      */
-    var root: Meta
+    public var root: Meta
 
     /**
      * Full path to the displayed node in [root]. Could be empty
      */
-    var name: Name
+    public var name: Name
 
     /**
      * Root descriptor
      */
-    var descriptor: NodeDescriptor?
+    public var descriptor: NodeDescriptor?
 }
 
-private val MetaViewerItem: FunctionalComponent<MetaViewerProps> = component { props ->
+private val MetaViewerItem: FunctionalComponent<MetaViewerProps> = functionalComponent("MetaViewerItem") { props ->
     metaViewerItem(props)
 }
 
-private fun RFBuilder.metaViewerItem(props: MetaViewerProps) {
+private fun RBuilder.metaViewerItem(props: MetaViewerProps) {
     var expanded: Boolean by useState { true }
     val item = props.root[props.name]
     val descriptorItem: ItemDescriptor? = props.descriptor?.get(props.name)
@@ -137,7 +137,7 @@ private fun RFBuilder.metaViewerItem(props: MetaViewerProps) {
 }
 
 @JsExport
-val MetaViewer = component<MetaViewerProps> { props ->
+public val MetaViewer:FunctionalComponent<MetaViewerProps>  = functionalComponent<MetaViewerProps>("MetaViewer") { props ->
     child(MetaViewerItem) {
         attrs {
             this.key = ""
@@ -148,7 +148,7 @@ val MetaViewer = component<MetaViewerProps> { props ->
     }
 }
 
-fun RBuilder.metaViewer(meta: Meta, descriptor: NodeDescriptor? = null, key: Any? = null) {
+public fun RBuilder.metaViewer(meta: Meta, descriptor: NodeDescriptor? = null, key: Any? = null) {
     child(MetaViewer) {
         attrs {
             this.key = key?.toString() ?: ""
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/ObjectTree.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/ObjectTree.kt
index 053569d7..5faab7ba 100644
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/ObjectTree.kt
+++ b/ui/react/src/main/kotlin/hep/dataforge/vision/react/ObjectTree.kt
@@ -19,7 +19,7 @@ public external interface ObjectTreeProps : RProps {
     public var clickCallback: (Name) -> Unit
 }
 
-private fun RFBuilder.objectTree(props: ObjectTreeProps): Unit {
+private fun RBuilder.objectTree(props: ObjectTreeProps): Unit {
     var expanded: Boolean by useState { props.selected?.startsWith(props.name) ?: false }
 
     val onClick: (Event) -> Unit = {
@@ -103,11 +103,11 @@ private fun RFBuilder.objectTree(props: ObjectTreeProps): Unit {
 }
 
 @JsExport
-val ObjectTree: FunctionalComponent<ObjectTreeProps> = component { props ->
+public val ObjectTree: FunctionalComponent<ObjectTreeProps> = functionalComponent("ObjectTree") { props ->
     objectTree(props)
 }
 
-fun RBuilder.objectTree(
+public fun RBuilder.objectTree(
     vision: Vision,
     selected: Name? = null,
     clickCallback: (Name) -> Unit = {}
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/TreeStyles.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/TreeStyles.kt
index ead7d577..7cfb7d48 100644
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/TreeStyles.kt
+++ b/ui/react/src/main/kotlin/hep/dataforge/vision/react/TreeStyles.kt
@@ -4,11 +4,11 @@ import kotlinx.css.*
 import kotlinx.css.properties.*
 import styled.StyleSheet
 
-object TreeStyles : StyleSheet("treeStyles", true) {
+public object TreeStyles : StyleSheet("treeStyles", true) {
     /**
      * Remove default bullets
      */
-    val tree by css {
+    public val tree by css {
         paddingLeft = 8.px
         marginLeft = 0.px
         listStyleType = ListStyleType.none
@@ -17,7 +17,7 @@ object TreeStyles : StyleSheet("treeStyles", true) {
     /**
      * Style the caret/arrow
      */
-    val treeCaret by css {
+    public val treeCaret by css {
         cursor = Cursor.pointer
         userSelect = UserSelect.none
         /* Create the caret/arrow with a unicode, and style it */
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/layout.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/layout.kt
index 5a13a089..cdafb527 100644
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/layout.kt
+++ b/ui/react/src/main/kotlin/hep/dataforge/vision/react/layout.kt
@@ -6,11 +6,12 @@ import kotlinx.css.display
 import kotlinx.css.flexDirection
 import kotlinx.html.DIV
 import react.RBuilder
+import react.ReactElement
 import styled.StyledDOMBuilder
 import styled.css
 import styled.styledDiv
 
-inline fun RBuilder.flexColumn(block: StyledDOMBuilder<DIV>.() -> Unit) =
+public inline fun RBuilder.flexColumn(block: StyledDOMBuilder<DIV>.() -> Unit): ReactElement =
     styledDiv {
         css {
             display = Display.flex
@@ -19,7 +20,7 @@ inline fun RBuilder.flexColumn(block: StyledDOMBuilder<DIV>.() -> Unit) =
         block()
     }
 
-inline fun RBuilder.flexRow(block: StyledDOMBuilder<DIV>.() -> Unit) =
+public inline fun RBuilder.flexRow(block: StyledDOMBuilder<DIV>.() -> Unit): ReactElement =
     styledDiv {
         css {
             display = Display.flex
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/react.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/react.kt
deleted file mode 100644
index a0e2c787..00000000
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/react.kt
+++ /dev/null
@@ -1,24 +0,0 @@
-package hep.dataforge.vision.react
-
-import react.*
-
-public class RFBuilder : RBuilder()
-
-/**
- * Get functional component from [func]
- */
-public inline fun <P : RProps> component(
-    crossinline func: RFBuilder.(props: P) -> Unit,
-): FunctionalComponent<P> {
-    return { props: P ->
-        val nodes = RFBuilder().apply { func(props) }.childList
-        when (nodes.size) {
-            0 -> null
-            1 -> nodes.first()
-            else -> createElement(Fragment, kotlinext.js.js {}, *nodes.toTypedArray())
-        }
-    }
-}
-//
-//public fun <T> RFBuilder.memoize(vararg deps: dynamic, builder: () -> T): T = useMemo(builder, deps)
-
diff --git a/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GdmlOptimizer.kt b/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GdmlOptimizer.kt
index dba7e32f..692c334b 100644
--- a/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GdmlOptimizer.kt
+++ b/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GdmlOptimizer.kt
@@ -13,9 +13,9 @@ import kotlinx.coroutines.Job
 import kotlinx.coroutines.coroutineScope
 import mu.KotlinLogging
 
-expect class Counter() {
-    fun get(): Int
-    fun incrementAndGet(): Int
+public expect class Counter() {
+    public fun get(): Int
+    public fun incrementAndGet(): Int
 }
 
 private fun Point3D?.safePlus(other: Point3D?): Point3D? = if (this == null && other == null) {
diff --git a/visionforge-gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/gdmlJs.kt b/visionforge-gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/gdmlJs.kt
index 44a36b6c..87b0f63c 100644
--- a/visionforge-gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/gdmlJs.kt
+++ b/visionforge-gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/gdmlJs.kt
@@ -1,8 +1,8 @@
 package hep.dataforge.vision.gdml
 
-actual class Counter {
+public actual class Counter {
     private var count: Int = 0
-    actual fun get(): Int = count
+    public actual fun get(): Int = count
 
-    actual fun incrementAndGet(): Int = count++
+    public actual fun incrementAndGet(): Int = count++
 }
\ No newline at end of file
diff --git a/visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/gdmlJVM.kt b/visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/gdmlJVM.kt
index ab58deb9..685708da 100644
--- a/visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/gdmlJVM.kt
+++ b/visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/gdmlJVM.kt
@@ -7,7 +7,7 @@ import java.nio.file.Files
 import java.nio.file.Path
 import java.util.concurrent.atomic.AtomicInteger
 
-actual typealias Counter = AtomicInteger
+public actual typealias Counter = AtomicInteger
 
 fun GDML.Companion.readFile(file: Path): GDML {
     val xmlReader = StAXReader(Files.newInputStream(file), "UTF-8")
diff --git a/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvas.kt b/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvas.kt
index a4e44f35..72db7ba4 100644
--- a/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvas.kt
+++ b/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvas.kt
@@ -29,11 +29,11 @@ import info.laht.threekt.math.Vector2
 import info.laht.threekt.objects.LineSegments
 import info.laht.threekt.objects.Mesh
 import info.laht.threekt.scenes.Scene
+import kotlinx.browser.window
+import kotlinx.dom.clear
 import org.w3c.dom.HTMLElement
 import org.w3c.dom.Node
 import org.w3c.dom.events.MouseEvent
-import kotlin.browser.window
-import kotlin.dom.clear
 import kotlin.math.cos
 import kotlin.math.max
 import kotlin.math.sin
@@ -41,11 +41,16 @@ import kotlin.math.sin
 /**
  *
  */
-class ThreeCanvas(element: HTMLElement, val three: ThreePlugin, val options: Canvas3DOptions) : Renderer<Solid> {
+public class ThreeCanvas(
+    element: HTMLElement,
+    public val three: ThreePlugin,
+    public val options: Canvas3DOptions,
+    public val onClick: ((Name?) -> Unit)? = null,
+) : Renderer<Solid> {
 
     override val context: Context get() = three.context
 
-    var content: Solid? = null
+    public var content: Solid? = null
         private set
 
     private var root: Object3D? = null
@@ -53,17 +58,15 @@ class ThreeCanvas(element: HTMLElement, val three: ThreePlugin, val options: Can
     private val raycaster = Raycaster()
     private val mousePosition: Vector2 = Vector2()
 
-    var onClick: ((Name?) -> Unit)? = null
-
-    val axes = AxesHelper(options.axes.size.toInt()).apply {
+    public val axes: AxesHelper = AxesHelper(options.axes.size.toInt()).apply {
         visible = options.axes.visible
     }
 
-    val scene: Scene = Scene().apply {
+    public val scene: Scene = Scene().apply {
         add(axes)
     }
 
-    val camera = buildCamera(options.camera)
+    public val camera: PerspectiveCamera = buildCamera(options.camera)
 
     private var picked: Object3D? = null
 
@@ -166,7 +169,7 @@ class ThreeCanvas(element: HTMLElement, val three: ThreePlugin, val options: Can
         }
     }
 
-    fun clear() {
+    public fun clear() {
         scene.children.find { it.name == "@root" }?.let {
             scene.remove(it)
         }
@@ -192,7 +195,7 @@ class ThreeCanvas(element: HTMLElement, val three: ThreePlugin, val options: Can
     private fun Object3D.toggleHighlight(
         highlight: Boolean,
         edgesName: String,
-        material: LineBasicMaterial = SELECTED_MATERIAL
+        material: LineBasicMaterial = SELECTED_MATERIAL,
     ) {
         if (userData[DO_NOT_HIGHLIGHT_TAG] == true) {
             return
@@ -220,7 +223,7 @@ class ThreeCanvas(element: HTMLElement, val three: ThreePlugin, val options: Can
     /**
      * Toggle highlight for element with given name
      */
-    fun select(name: Name?) {
+    public fun select(name: Name?) {
         if (name == null) {
             selected?.toggleHighlight(false, SELECT_NAME, SELECTED_MATERIAL)
             selected = null
@@ -234,15 +237,21 @@ class ThreeCanvas(element: HTMLElement, val three: ThreePlugin, val options: Can
         }
     }
 
-    companion object {
-        const val DO_NOT_HIGHLIGHT_TAG = "doNotHighlight"
+    public companion object {
+        public const val DO_NOT_HIGHLIGHT_TAG = "doNotHighlight"
         private const val HIGHLIGHT_NAME = "@highlight"
         private const val SELECT_NAME = "@select"
     }
 }
 
-fun ThreePlugin.output(element: HTMLElement, spec: Canvas3DOptions = Canvas3DOptions.empty()): ThreeCanvas =
-    ThreeCanvas(element, this, spec)
+public fun ThreePlugin.output(
+    element: HTMLElement,
+    spec: Canvas3DOptions = Canvas3DOptions.empty(),
+    onClick: ((Name?) -> Unit)? = null,
+): ThreeCanvas = ThreeCanvas(element, this, spec, onClick)
 
-fun ThreePlugin.render(element: HTMLElement, obj: Solid, spec: Canvas3DOptions = Canvas3DOptions.empty()): Unit =
-    output(element, spec).render(obj)
\ No newline at end of file
+public fun ThreePlugin.render(
+    element: HTMLElement, obj: Solid,
+    spec: Canvas3DOptions = Canvas3DOptions.empty(),
+    onClick: ((Name?) -> Unit)? = null,
+): Unit = output(element, spec, onClick).render(obj)
\ No newline at end of file
diff --git a/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvasComponent.kt b/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvasComponent.kt
index ee033817..9f335642 100644
--- a/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvasComponent.kt
+++ b/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvasComponent.kt
@@ -6,67 +6,88 @@ import hep.dataforge.vision.solid.Solid
 import hep.dataforge.vision.solid.specifications.Canvas3DOptions
 import org.w3c.dom.Element
 import org.w3c.dom.HTMLElement
-import react.RBuilder
-import react.RComponent
-import react.RProps
-import react.RState
+import react.*
 import react.dom.div
-import react.dom.findDOMNode
 
 public external interface ThreeCanvasProps : RProps {
-    var context: Context
-    var obj: Solid
-    var options: Canvas3DOptions?
-    var selected: Name?
-    var clickCallback: (Name?) -> Unit
-    var canvasCallback: ((ThreeCanvas?) -> Unit)?
+    public var context: Context
+    public var obj: Solid?
+    public var options: Canvas3DOptions?
+    public var selected: Name?
+    public var clickCallback: (Name?) -> Unit
+    public var canvasCallback: ((ThreeCanvas?) -> Unit)?
 }
 
 public external interface ThreeCanvasState : RState {
-    var element: Element?
+    public var element: Element?
 //    var canvas: ThreeCanvas?
 }
 
-@JsExport
-public class ThreeCanvasComponent : RComponent<ThreeCanvasProps, ThreeCanvasState>() {
+public val ThreeCanvasComponent: FunctionalComponent<ThreeCanvasProps> = functionalComponent(
+    "ThreeCanvasComponent"
+) { props ->
+    val elementRef = useRef<Element?>(null)
+    var canvas by useState<ThreeCanvas?>(null)
 
-    private var canvas: ThreeCanvas? = null
-
-    override fun componentDidMount() {
-        if(canvas == null) {
-            val element = state.element as? HTMLElement ?: error("Canvas element not found")
+    useEffect(listOf(props.context, props.obj, props.options, elementRef)) {
+        if (canvas == null) {
+            val element = elementRef.current as? HTMLElement ?: error("Canvas element not found")
             val three: ThreePlugin = props.context.plugins.fetch(ThreePlugin)
-            canvas = three.output(element, props.options ?: Canvas3DOptions.empty()).apply {
-                onClick = props.clickCallback
-            }
-            props.canvasCallback?.invoke(canvas)
-        }
-        canvas?.render(props.obj)
-    }
-
-    override fun componentDidUpdate(prevProps: ThreeCanvasProps, prevState: ThreeCanvasState, snapshot: Any) {
-        if (prevProps.obj != props.obj) {
-            componentDidMount()
-        }
-        if (prevProps.selected != props.selected) {
-            canvas?.select(props.selected)
+            val newCanvas = three.output(element, props.options ?: Canvas3DOptions.empty(), props.clickCallback)
+            props.canvasCallback?.invoke(newCanvas)
+            canvas = newCanvas
         }
     }
 
-    override fun RBuilder.render() {
-        div {
-            ref {
-                state.element = findDOMNode(it)
+    useEffect(listOf(canvas, props.obj)) {
+        props.obj?.let { obj ->
+            if (canvas?.content != obj) {
+                canvas?.render(obj)
             }
         }
     }
+
+    useEffect(listOf(canvas, props.selected)) {
+        canvas?.select(props.selected)
+    }
+
+    div {
+        ref = elementRef
+    }
 }
 
-public fun RBuilder.threeCanvas(object3D: Solid, options: Canvas3DOptions.() -> Unit = {}) {
-    child(ThreeCanvasComponent::class) {
-        attrs {
-            this.obj = object3D
-            this.options = Canvas3DOptions.invoke(options)
-        }
-    }
-}
\ No newline at end of file
+//public class ThreeCanvasComponent : RComponent<ThreeCanvasProps, ThreeCanvasState>() {
+//
+//    private var canvas: ThreeCanvas? = null
+//
+//    override fun componentDidMount() {
+//        props.obj?.let { obj ->
+//            if (canvas == null) {
+//                val element = state.element as? HTMLElement ?: error("Canvas element not found")
+//                val three: ThreePlugin = props.context.plugins.fetch(ThreePlugin)
+//                canvas = three.output(element, props.options ?: Canvas3DOptions.empty()).apply {
+//                    onClick = props.clickCallback
+//                }
+//                props.canvasCallback?.invoke(canvas)
+//            }
+//            canvas?.render(obj)
+//        }
+//    }
+//
+//    override fun componentDidUpdate(prevProps: ThreeCanvasProps, prevState: ThreeCanvasState, snapshot: Any) {
+//        if (prevProps.obj != props.obj) {
+//            componentDidMount()
+//        }
+//        if (prevProps.selected != props.selected) {
+//            canvas?.select(props.selected)
+//        }
+//    }
+//
+//    override fun RBuilder.render() {
+//        div {
+//            ref {
+//                state.element = findDOMNode(it)
+//            }
+//        }
+//    }
+//}
\ No newline at end of file