2022-01-24 09:44:18 +03:00
43 changed files with 382 additions and 323 deletions
--- a/build.gradle.kts
+++ b/build.gradle.kts
@ -2,14 +2,13 @@ plugins {
    id("ru.mipt.npm.gradle.project")
 }

-val dataforgeVersion by extra("0.5.0-dev-10")
+val dataforgeVersion by extra("0.5.0-dev-11")
 val fxVersion by extra("11")

 allprojects {
    repositories {
        mavenLocal()
        mavenCentral()
-        jcenter()
        maven("https://repo.kotlin.link")
        maven("https://maven.jzy3d.org/releases")
    }
--- a/demo/gdml/src/commonTest/kotlin/space/kscience/visionforge/gdml/GDMLVisionTest.kt
+++ b/demo/gdml/src/commonTest/kotlin/space/kscience/visionforge/gdml/GDMLVisionTest.kt
@ -4,27 +4,36 @@ import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.values.asValue
 import space.kscience.dataforge.values.string
 import space.kscience.gdml.GdmlShowCase
+import space.kscience.visionforge.Vision
+import space.kscience.visionforge.computeProperties
+import space.kscience.visionforge.get
 import space.kscience.visionforge.setProperty
+import space.kscience.visionforge.solid.Solid
 import space.kscience.visionforge.solid.SolidMaterial
+import space.kscience.visionforge.solid.material
 import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertNotNull

 class GDMLVisionTest {
+    private val cubes = GdmlShowCase.cubes().toVision()

-//    @Test
-//    fun testCubesStyles(){
-//        val cubes = gdml.toVision()
-//        val segment = cubes["composite000.segment_0".toName()] as Solid
-//        println(segment.styles)
-//        println(segment.material)
-//    }
+    @Test
+    fun testCubesStyles(){
+        val segment = cubes["composite-000.segment-0"] as Solid
+        println(segment.computeProperties().getValue(Vision.STYLE_KEY))
+//        println(segment.computePropertyNode(SolidMaterial.MATERIAL_KEY))
+//        println(segment.computeProperty(SolidMaterial.MATERIAL_COLOR_KEY))
+
+        println(segment.material?.meta)
+
+        //println(Solids.encodeToString(cubes))
+    }


    @Test
    fun testPrototypeProperty() {
-        val vision = GdmlShowCase.cubes().toVision()
-        val child = vision[Name.of("composite-000","segment-0")]
+        val child = cubes[Name.of("composite-000","segment-0")]
        assertNotNull(child)
        child.setProperty(SolidMaterial.MATERIAL_COLOR_KEY, "red".asValue())
        assertEquals("red", child.getPropertyValue(SolidMaterial.MATERIAL_COLOR_KEY)?.string)
--- a/demo/gdml/src/jvmMain/kotlin/space/kscience/visionforge/gdml/demo/GdmlFxDemoApp.kt
+++ b/demo/gdml/src/jvmMain/kotlin/space/kscience/visionforge/gdml/demo/GdmlFxDemoApp.kt
@ -7,7 +7,6 @@ import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.context.fetch
 import space.kscience.gdml.GdmlShowCase
 import space.kscience.visionforge.VisionManager
-import space.kscience.visionforge.computeProperties
 import space.kscience.visionforge.editor.VisionEditorFragment
 import space.kscience.visionforge.editor.VisionTreeFragment
 import space.kscience.visionforge.gdml.toVision
@ -33,9 +32,7 @@ class GDMLView : View() {
        this.itemProperty.bind(canvas.rootObjectProperty)
    }

-    private val propertyEditor = VisionEditorFragment {
-        it.computeProperties()
-    }.apply {
+    private val propertyEditor = VisionEditorFragment().apply {
        descriptorProperty.set(SolidMaterial.descriptor)
        visionProperty.bind(treeFragment.selectedProperty)
    }
--- a/demo/muon-monitor/src/commonMain/kotlin/ru/mipt/npm/muon/monitor/Model.kt
+++ b/demo/muon-monitor/src/commonMain/kotlin/ru/mipt/npm/muon/monitor/Model.kt
@ -28,6 +28,7 @@ class Model(val manager: VisionManager) {

    private fun SolidGroup.detector(detector: SC16) {
        group(detector.name) {
+            position = detector.center
            detector.pixels.forEach {
                pixel(it)
            }
@ -38,6 +39,10 @@ class Model(val manager: VisionManager) {

    val root: SolidGroup = SolidGroup().apply {
        root(this@Model.manager)
+        material {
+            wireframe
+            color("darkgreen")
+        }
        rotationX = PI / 2
        group("bottom") {
            Monitor.detectors.filter { it.center.z == LOWER_LAYER_Z }.forEach {
--- a/demo/muon-monitor/src/commonMain/kotlin/ru/mipt/npm/muon/monitor/Monitor.kt
+++ b/demo/muon-monitor/src/commonMain/kotlin/ru/mipt/npm/muon/monitor/Monitor.kt
@ -3,7 +3,6 @@ package ru.mipt.npm.muon.monitor
 import ru.mipt.npm.muon.monitor.Monitor.PIXEL_XY_SIZE
 import ru.mipt.npm.muon.monitor.Monitor.PIXEL_Z_SIZE
 import space.kscience.visionforge.solid.Point3D
-import space.kscience.visionforge.solid.plus

 /**
 * A single pixel
@ -98,7 +97,7 @@ class SC16(
            }
            val offset = Point3D(-y, x, 0)//rotateDetector(Point3D(x, y, 0.0));
            val pixelName = "${name}_${index}"
-            SC1(pixelName, center + offset)
+            SC1(pixelName, offset)
        }
    }
 }
--- 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
@ -2,6 +2,7 @@ package ru.mipt.npm.muon.monitor

 import io.ktor.client.HttpClient
 import io.ktor.client.request.get
+import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
 import kotlinx.css.*
@ -23,6 +24,7 @@ import space.kscience.visionforge.react.flexColumn
 import space.kscience.visionforge.react.visionTree
 import space.kscience.visionforge.solid.specifications.Camera
 import space.kscience.visionforge.solid.specifications.Canvas3DOptions
+import space.kscience.visionforge.solid.three.edges
 import styled.css
 import styled.styledDiv
 import kotlin.math.PI
@ -34,6 +36,7 @@ external interface MMAppProps : RProps {
    var selected: Name?
 }

+@OptIn(DelicateCoroutinesApi::class)
@JsExport
 val MMApp = functionalComponent<MMAppProps>("Muon monitor") { props ->
    var selected by useState { props.selected }
@ -53,7 +56,9 @@ val MMApp = functionalComponent<MMAppProps>("Muon monitor") { props ->
        }
    }

-    val root = props.model.root
+    val root = props.model.root.apply {
+        edges()
+    }

    gridRow {
        flexColumn {
--- a/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMDemoApp.kt
+++ b/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMDemoApp.kt
@ -7,18 +7,15 @@ import kotlinx.browser.document
 import react.child
 import react.dom.render
 import space.kscience.dataforge.context.Context
-import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.context.fetch
 import space.kscience.visionforge.Application
 import space.kscience.visionforge.VisionManager
 import space.kscience.visionforge.bootstrap.useBootstrap
+import space.kscience.visionforge.solid.three.ThreePlugin
 import space.kscience.visionforge.startApplication

 private class MMDemoApp : Application {

-    private val visionManager = Global.fetch(VisionManager)
-    private val model = Model(visionManager)
-
    private val connection = HttpClient {
        install(JsonFeature) {
            serializer = KotlinxSerializer()
@ -28,13 +25,18 @@ private class MMDemoApp : Application {
    override fun start(state: Map<String, Any>) {
        useBootstrap()

-        val element = document.getElementById("app") ?: error("Element with id 'app' not found on page")
+        val context = Context("MM-demo"){
+            plugin(ThreePlugin)
+        }
+        val visionManager = context.fetch(VisionManager)

-        val context = Context("demo")
+        val model = Model(visionManager)
+
+        val element = document.getElementById("app") ?: error("Element with id 'app' not found on page")
        render(element) {
            child(MMApp) {
                attrs {
-                    this.model = this@MMDemoApp.model
+                    this.model = model
                    this.connection = this@MMDemoApp.connection
                    this.context = context
                }
--- a/demo/solid-showcase/src/commonMain/kotlin/space/kscience/visionforge/solid/demo/demo.kt
+++ b/demo/solid-showcase/src/commonMain/kotlin/space/kscience/visionforge/solid/demo/demo.kt
@ -19,7 +19,7 @@ fun VisionLayout<Solid>.demo(name: String, title: String = name, block: SolidGro
        "title" put title
    }
    val vision = SolidGroup(block)
-    render(Name.parse(name), vision)
+    render(Name.parse(name), vision, meta)
 }

 val canvasOptions = Canvas3DOptions {
@ -36,6 +36,7 @@ val canvasOptions = Canvas3DOptions {
    }
 }

+@OptIn(DelicateCoroutinesApi::class)
 fun VisionLayout<Solid>.showcase() {
    demo("shapes", "Basic shapes") {
        box(100.0, 100.0, 100.0) {
--- a/demo/solid-showcase/src/jvmMain/kotlin/space/kscience/visionforge/solid/demo/FXDemoApp.kt
+++ b/demo/solid-showcase/src/jvmMain/kotlin/space/kscience/visionforge/solid/demo/FXDemoApp.kt
@ -14,7 +14,7 @@ class FXDemoApp : App(FXDemoGrid::class) {
        stage.height = 600.0

        view.showcase()
-        view.showcaseCSG()
+        //view.showcaseCSG()
    }
 }

--- a/demo/solid-showcase/src/jvmMain/kotlin/space/kscience/visionforge/solid/demo/MetaEditorDemo.kt
+++ b/demo/solid-showcase/src/jvmMain/kotlin/space/kscience/visionforge/solid/demo/MetaEditorDemo.kt
@ -1,7 +1,6 @@
 package space.kscience.visionforge.demo

 import javafx.geometry.Orientation
-import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.MutableMeta
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
 import space.kscience.dataforge.meta.descriptors.node
@ -46,12 +45,12 @@ class MetaEditorDemo : View("Meta editor demo") {
        }
    }

-    private val rootNode = FXMetaModel.root(meta, descriptor)
+    private val rootNode:FXMetaModel<MutableMeta> = FXMetaModel.root(meta, descriptor)

    override val root = splitpane(
        Orientation.HORIZONTAL,
-        MetaViewer(rootNode as Meta).root,
-        MutableMetaEditor(rootNode as FXMetaModel<MutableMeta>).root
+        MetaViewer(rootNode).root,
+        MutableMetaEditor(rootNode).root
    )
 }

--- a/ui/bootstrap/src/main/kotlin/space/kscience/visionforge/bootstrap/outputConfig.kt
+++ b/ui/bootstrap/src/main/kotlin/space/kscience/visionforge/bootstrap/outputConfig.kt
@ -12,9 +12,9 @@ import org.w3c.files.BlobPropertyBag
 import react.*
 import react.dom.attrs
 import react.dom.button
-import space.kscience.dataforge.meta.descriptors.defaultNode
 import space.kscience.dataforge.meta.withDefault
 import space.kscience.visionforge.Vision
+import space.kscience.visionforge.encodeToString
 import space.kscience.visionforge.react.flexColumn
 import space.kscience.visionforge.react.flexRow
 import space.kscience.visionforge.react.propertyEditor
@ -51,12 +51,12 @@ public val CanvasControls: FunctionComponent<CanvasControlsProps> = functionalCo
                border(1.px, BorderStyle.solid, Color.blue)
                padding(4.px)
            }
-            props.vision?.manager?.let { manager ->
+            props.vision?.let{ vision ->
                button {
                    +"Export"
                    attrs {
                        onClickFunction = {
-                            val json = manager.encodeToString(props.vision!!)
+                            val json = vision.encodeToString()
                            saveData(it, "object.json", "text/json") {
                                json
                            }
--- a/ui/bootstrap/src/main/kotlin/space/kscience/visionforge/bootstrap/threeControls.kt
+++ b/ui/bootstrap/src/main/kotlin/space/kscience/visionforge/bootstrap/threeControls.kt
@ -21,7 +21,7 @@ public external interface ThreeControlsProps : RProps {
 }

@JsExport
-public val ThreeControls: FunctionalComponent<ThreeControlsProps> = functionalComponent { props ->
+public val ThreeControls: FunctionComponent<ThreeControlsProps> = functionalComponent { props ->
    tabPane(if (props.selected != null) "Properties" else null) {
        tab("Canvas") {
            card("Canvas configuration") {
--- a/ui/react/src/main/kotlin/space/kscience/visionforge/react/MetaViewer.kt
+++ b/ui/react/src/main/kotlin/space/kscience/visionforge/react/MetaViewer.kt
@ -9,7 +9,6 @@ import react.dom.a
 import react.dom.attrs
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
-import space.kscience.dataforge.meta.descriptors.defaultNode
 import space.kscience.dataforge.meta.descriptors.get
 import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.meta.isLeaf
--- a/ui/react/src/main/kotlin/space/kscience/visionforge/react/PropertyEditor.kt
+++ b/ui/react/src/main/kotlin/space/kscience/visionforge/react/PropertyEditor.kt
@ -121,7 +121,7 @@ private fun RBuilder.propertyEditorItem(props: PropertyEditorProps) {
        }?.forEach {
            add(NameToken(it.key))
        }
-        ownProperty?.items?.keys?.filterNot { it.body.startsWith("@") }?.let { addAll(it) }
+        //ownProperty?.items?.keys?.filterNot { it.body.startsWith("@") }?.let { addAll(it) }
    }

    flexRow {
--- a/ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ringThreeControls.kt
+++ b/ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ringThreeControls.kt
@ -15,7 +15,6 @@ import react.dom.button
 import ringui.Island
 import ringui.SmartTabs
 import ringui.Tab
-import space.kscience.dataforge.meta.descriptors.defaultNode
 import space.kscience.dataforge.meta.withDefault
 import space.kscience.dataforge.names.Name
 import space.kscience.visionforge.Vision
--- a/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/ComputedVisionProperties.kt
+++ b/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/ComputedVisionProperties.kt
@ -1,53 +1,84 @@
 package space.kscience.visionforge

 import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.ObservableMutableMeta
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
 import space.kscience.dataforge.meta.descriptors.get
 import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.NameToken
 import space.kscience.dataforge.names.plus
+import space.kscience.dataforge.values.MutableValueProvider
 import space.kscience.dataforge.values.Value

 private class ComputedVisionProperties(
-    public val vision: Vision,
-    public val rootName: Name,
-    public val visionDescriptor: MetaDescriptor
-) : ObservableMutableMeta by vision.meta {
+    val vision: Vision,
+    val pathName: Name,
+    val visionDescriptor: MetaDescriptor,
+    val parentInheritFlag: Boolean?,
+    val parentStylesFlag: Boolean?
+) : Meta {

-    public val descriptor: MetaDescriptor? = visionDescriptor[rootName]
+    val descriptor: MetaDescriptor? by lazy { visionDescriptor[pathName] }

-    override val items: Map<NameToken, ObservableMutableMeta>
+    override val items: Map<NameToken, Meta>
        get() {
-            val metaKeys = vision.meta.items.keys
+            val metaKeys = vision.meta.getMeta(pathName)?.items?.keys ?: emptySet()
            val descriptorKeys = descriptor?.children?.map { NameToken(it.key) } ?: emptySet()
-            return (metaKeys + descriptorKeys).associateWith { getMeta(rootName + it) }
+            val inheritFlag = descriptor?.inherited ?: parentInheritFlag
+            val stylesFlag = descriptor?.usesStyles ?: parentStylesFlag
+            return (metaKeys + descriptorKeys).associateWith {
+                ComputedVisionProperties(
+                    vision,
+                    pathName + it,
+                    visionDescriptor,
+                    inheritFlag,
+                    stylesFlag
+                )
+            }
        }

-    override var value: Value?
+    override val value: Value?
        get() {
-            val inheritFlag = descriptor?.inherited ?: false
-            val stylesFlag = descriptor?.usesStyles ?: true
-            return vision.getPropertyValue(rootName, inheritFlag, stylesFlag, true)
-        }
-        set(value) {
-            vision.meta.setValue(rootName, value)
+            val inheritFlag = descriptor?.inherited ?: parentInheritFlag ?: false
+            val stylesFlag = descriptor?.usesStyles ?: parentStylesFlag ?: true
+            return vision.getPropertyValue(pathName, inheritFlag, stylesFlag, true)
        }

-    override fun getMeta(name: Name): ObservableMutableMeta =
-        ComputedVisionProperties(vision, rootName + name, visionDescriptor)
-
-    override fun getOrCreate(name: Name): ObservableMutableMeta = getMeta(name)
-
-    override fun toMeta(): Meta = this
+    override fun toString(): String = Meta.toString(this)
+    override fun equals(other: Any?): Boolean = Meta.equals(this, other as? Meta)
+    override fun hashCode(): Int = Meta.hashCode(this)
 }

 /**
 * Compute property node based on inheritance and style information from the descriptor
 */
-public fun Vision.computeProperties(descriptor: MetaDescriptor? = this.descriptor): ObservableMutableMeta =
-    if (descriptor == null) meta else ComputedVisionProperties(this, Name.EMPTY, descriptor)
+public fun Vision.computeProperties(descriptor: MetaDescriptor? = this.descriptor): Meta =
+    if (descriptor == null) meta else ComputedVisionProperties(this, Name.EMPTY, descriptor, null, null)
+
+public fun Vision.computePropertyNode(
+    name: Name,
+    descriptor: MetaDescriptor? = this.descriptor
+): Meta? = computeProperties(descriptor)[name]
+
+/**
+ * Compute the property based on the provided value descriptor. By default, use Vision own descriptor
+ */
+public fun Vision.computeProperty(name: Name, valueDescriptor: MetaDescriptor? = descriptor?.get(name)): Value? {
+    val inheritFlag = valueDescriptor?.inherited ?: false
+    val stylesFlag = valueDescriptor?.usesStyles ?: true
+    return getPropertyValue(name, inheritFlag, stylesFlag)
+}
+
+/**
+ * Accessor to all vision properties
+ */
+public fun Vision.computePropertyValues(
+    descriptor: MetaDescriptor? = this.descriptor
+): MutableValueProvider = object : MutableValueProvider {
+    override fun getValue(name: Name): Value? = computeProperty(name, descriptor?.get(name))
+
+    override fun setValue(name: Name, value: Value?) {
+        setProperty(name, value)
+    }
+}

-public fun Vision.computePropertyNode(name: Name, descriptor: MetaDescriptor? = this.descriptor): ObservableMutableMeta? =
-    computeProperties(descriptor)[name]
--- a/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/StyleSheet.kt
+++ b/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/StyleSheet.kt
@ -7,6 +7,7 @@ import space.kscience.dataforge.names.asName
 import space.kscience.dataforge.names.plus
 import space.kscience.dataforge.values.Value
 import space.kscience.dataforge.values.asValue
+import space.kscience.dataforge.values.stringList
 import kotlin.jvm.JvmInline

 /**
@ -72,7 +73,7 @@ internal fun Vision.styleChanged(key: String, oldStyle: Meta?, newStyle: Meta?)
 * List of names of styles applied to this object. Order matters. Not inherited.
 */
 public var Vision.styles: List<String>
-    get() = meta.getMeta(Vision.STYLE_KEY)?.stringList ?: emptyList()
+    get() = meta.getValue(Vision.STYLE_KEY)?.stringList ?: emptyList()
    set(value) {
        meta.setValue(Vision.STYLE_KEY, value.map { it.asValue() }.asValue())
    }
@ -105,7 +106,7 @@ public fun Vision.getStyleProperty(name: Name): Value? = styles.firstNotNullOfOr
 /**
 * Resolve an item in all style layers
 */
-public fun Vision.getStyleItems(name: Name): List<Meta> = styles.mapNotNull {
+public fun Vision.getStyleNodes(name: Name): List<Meta> = styles.mapNotNull {
    getStyle(it)?.get(name)
 }

--- a/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionBase.kt
+++ b/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionBase.kt
@ -7,7 +7,6 @@ import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.MutableMeta
 import space.kscience.dataforge.meta.ObservableMutableMeta
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
-import space.kscience.dataforge.meta.descriptors.defaultNode
 import space.kscience.dataforge.meta.descriptors.value
 import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.misc.DFExperimental
@ -30,9 +29,11 @@ internal data class MetaListener(
@SerialName("vision")
 public open class VisionBase(
    @Transient override var parent: VisionGroup? = null,
-    protected var properties: MutableMeta? = null
 ) : Vision {

+    @Transient
+    protected open var properties: MutableMeta? = null
+
    @Synchronized
    protected fun getOrCreateProperties(): MutableMeta {
        if (properties == null) {
@ -45,50 +46,55 @@ public open class VisionBase(
    @Transient
    private val listeners = HashSet<MetaListener>()

-    private inner class VisionBaseProperties(val rootName: Name) : ObservableMutableMeta {
+    private inner class VisionProperties(val pathName: Name) : ObservableMutableMeta {

        override val items: Map<NameToken, ObservableMutableMeta>
-            get() = properties?.get(rootName)?.items?.mapValues { entry ->
-                VisionBaseProperties(rootName + entry.key)
+            get() = properties?.get(pathName)?.items?.mapValues { entry ->
+                VisionProperties(pathName + entry.key)
            } ?: emptyMap()

        override var value: Value?
-            get() = properties?.get(rootName)?.value
+            get() = properties?.get(pathName)?.value
            set(value) {
-                getOrCreateProperties().setValue(rootName, value)
+                val oldValue = properties?.get(pathName)?.value
+                getOrCreateProperties().setValue(pathName, value)
+                if (oldValue != value) {
+                    invalidate(Name.EMPTY)
+                }
            }

-        override fun getOrCreate(name: Name): ObservableMutableMeta = VisionBaseProperties(this.rootName + name)
+        override fun getOrCreate(name: Name): ObservableMutableMeta = VisionProperties(pathName + name)

        override fun setMeta(name: Name, node: Meta?) {
-            getOrCreateProperties().setMeta(name, node)
+            getOrCreateProperties().setMeta(pathName + name, node)
+            invalidate(name)
        }

        @DFExperimental
        override fun attach(name: Name, node: ObservableMutableMeta) {
            val ownProperties = getOrCreateProperties()
            if (ownProperties is ObservableMutableMeta) {
-                ownProperties.attach(rootName + name, node)
+                ownProperties.attach(pathName + name, node)
            } else {
-                ownProperties.setMeta(rootName + name, node)
+                ownProperties.setMeta(pathName + name, node)
                node.onChange(this) { childName ->
-                    ownProperties.setMeta(rootName + name + childName, this[childName])
+                    ownProperties.setMeta(pathName + name + childName, this[childName])
                }
            }
        }

        override fun invalidate(name: Name) {
-            invalidateProperty(rootName + name)
+            invalidateProperty(pathName + name)
        }

        @Synchronized
        override fun onChange(owner: Any?, callback: Meta.(name: Name) -> Unit) {
-            if (rootName.isEmpty()) {
+            if (pathName.isEmpty()) {
                listeners.add((MetaListener(owner, callback)))
            } else {
                listeners.add(MetaListener(owner) { name ->
-                    if (name.startsWith(rootName)) {
-                        (get(rootName) ?: Meta.EMPTY).callback(name.removeHeadOrNull(rootName)!!)
+                    if (name.startsWith(pathName)) {
+                        (this@MetaListener[pathName] ?: Meta.EMPTY).callback(name.removeHeadOrNull(pathName)!!)
                    }
                })
            }
@ -104,7 +110,7 @@ public open class VisionBase(
        override fun hashCode(): Int = Meta.hashCode(this)
    }

-    override val meta: ObservableMutableMeta get() = VisionBaseProperties(Name.EMPTY)
+    override val meta: ObservableMutableMeta get() = VisionProperties(Name.EMPTY)

    override fun getPropertyValue(
        name: Name,
--- a/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionGroup.kt
+++ b/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionGroup.kt
@ -4,6 +4,9 @@ import kotlinx.coroutines.flow.Flow
 import space.kscience.dataforge.names.*
 import space.kscience.dataforge.provider.Provider

+@DslMarker
+public annotation class VisionBuilder
+
 public interface VisionContainer<out V : Vision> {
    public operator fun get(name: Name): V?
 }
--- a/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/misc.kt
+++ b/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/misc.kt
@ -1,17 +0,0 @@
-package space.kscience.visionforge
-
-import space.kscience.dataforge.meta.Laminate
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.isLeaf
-
-@DslMarker
-public annotation class VisionBuilder
-
-public fun List<Meta?>.merge(): Meta? {
-    val first = firstOrNull { it != null }
-    return when {
-        first == null -> null
-        first.isLeaf -> first //fast search for first entry if it is value
-        else -> Laminate(filterNotNull()) //merge nodes if first encountered node is meta
-    }
-}
--- a/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/visionDescriptor.kt
+++ b/visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/visionDescriptor.kt
@ -7,20 +7,20 @@ import space.kscience.dataforge.values.asValue
 private const val INHERITED_DESCRIPTOR_ATTRIBUTE = "inherited"
 private const val STYLE_DESCRIPTOR_ATTRIBUTE = "useStyles"

-public val MetaDescriptor.inherited: Boolean
-    get() = attributes[INHERITED_DESCRIPTOR_ATTRIBUTE].boolean ?: false
+public val MetaDescriptor.inherited: Boolean?
+    get() = attributes[INHERITED_DESCRIPTOR_ATTRIBUTE].boolean

-public var MetaDescriptorBuilder.inherited: Boolean
-    get() = attributes[INHERITED_DESCRIPTOR_ATTRIBUTE].boolean ?: false
-    set(value) = attributes.set(INHERITED_DESCRIPTOR_ATTRIBUTE, value)
+public var MetaDescriptorBuilder.inherited: Boolean?
+    get() = attributes[INHERITED_DESCRIPTOR_ATTRIBUTE].boolean
+    set(value) = attributes.set(INHERITED_DESCRIPTOR_ATTRIBUTE, value?.asValue())


-public val MetaDescriptor.usesStyles: Boolean
-    get() = attributes[STYLE_DESCRIPTOR_ATTRIBUTE].boolean ?: true
+public val MetaDescriptor.usesStyles: Boolean?
+    get() = attributes[STYLE_DESCRIPTOR_ATTRIBUTE].boolean

-public var MetaDescriptorBuilder.usesStyles: Boolean
-    get() = attributes[STYLE_DESCRIPTOR_ATTRIBUTE].boolean ?: true
-    set(value) = attributes.set(STYLE_DESCRIPTOR_ATTRIBUTE, value)
+public var MetaDescriptorBuilder.usesStyles: Boolean?
+    get() = attributes[STYLE_DESCRIPTOR_ATTRIBUTE].boolean
+    set(value) = attributes.set(STYLE_DESCRIPTOR_ATTRIBUTE, value?.asValue())

 public val MetaDescriptor.widget: Meta
    get() = attributes["widget"] ?: Meta.EMPTY
@ -38,7 +38,7 @@ public val MetaDescriptor.widgetType: String?
    get() = attributes["widget.type"].string

 /**
- * Extension property to access the "widget.type" key of [ValueDescriptor]
+ * Extension property to access the "widget.type" key of [MetaDescriptorBuilder]
 */
 public var MetaDescriptorBuilder.widgetType: String?
    get() = attributes["widget.type"].string
--- a/visionforge-core/src/commonTest/kotlin/space/kscience/visionforge/html/HtmlTagTest.kt
+++ b/visionforge-core/src/commonTest/kotlin/space/kscience/visionforge/html/HtmlTagTest.kt
@ -12,9 +12,6 @@ import space.kscience.dataforge.names.Name
 import space.kscience.visionforge.Vision
 import space.kscience.visionforge.VisionBase
 import space.kscience.visionforge.VisionManager
-import kotlin.collections.HashMap
-import kotlin.collections.Map
-import kotlin.collections.forEach
 import kotlin.collections.set
 import kotlin.test.Test

--- a/visionforge-fx/build.gradle.kts
+++ b/visionforge-fx/build.gradle.kts
@ -14,17 +14,10 @@ dependencies {

    api("no.tornado:tornadofx:1.7.20")

-    api("de.jensd:fontawesomefx-fontawesome:4.7.0-11") {
-        exclude(group = "org.openjfx")
-    }
-
-    api("de.jensd:fontawesomefx-commons:11.0") {
-        exclude(group = "org.openjfx")
-    }
-
    api("org.fxyz3d:fxyz3d:0.5.4") {
        exclude(module = "slf4j-simple")
    }
+
    api("org.jetbrains.kotlinx:kotlinx-coroutines-javafx:${ru.mipt.npm.gradle.KScienceVersions.coroutinesVersion}")

    implementation("eu.mihosoft.vrl.jcsg:jcsg:0.5.7") {
--- a/visionforge-fx/src/main/kotlin/space/kscience/visionforge/editor/FXMetaModel.kt
+++ b/visionforge-fx/src/main/kotlin/space/kscience/visionforge/editor/FXMetaModel.kt
@ -21,23 +21,29 @@ import tornadofx.*
 public class FXMetaModel<M : Meta>(
    public val root: M,
    public val rootDescriptor: MetaDescriptor?,
-    public val nodeName: Name,
-    public val title: String = nodeName.lastOrNull()?.toString() ?: "Meta"
+    public val defaultRoot: Meta?,
+    public val pathName: Name,
+    public val title: String = pathName.lastOrNull()?.toString() ?: "Meta"
 ) : Comparable<FXMetaModel<*>> {

    private val existingNode = object: ObjectBinding<Meta?>() {
-        override fun computeValue(): Meta? =root[nodeName]
+        override fun computeValue(): Meta? = root[pathName]
    }

+    private val defaultNode: Meta? get() = defaultRoot?.getMeta(pathName)
+
+    public val descriptor: MetaDescriptor? = rootDescriptor?.get(pathName)
+
    public val children: ListBinding<FXMetaModel<M>> = object : ListBinding<FXMetaModel<M>>() {
        override fun computeValue(): ObservableList<FXMetaModel<M>> {
            val nodeKeys = existingNode.get()?.items?.keys?: emptySet()
-            val descriptorKeys = descriptor?.children?.keys?.map { NameToken(it) } ?: emptySet()
-            return (nodeKeys + descriptorKeys).map {
+            val defaultKeys = defaultNode?.items?.keys ?: emptySet()
+            return (nodeKeys + defaultKeys).map {
                FXMetaModel(
                    root,
                    rootDescriptor,
-                    nodeName + it
+                    defaultRoot,
+                    pathName + it
                )
            }.filter(filter).asObservable()
        }
@ -47,16 +53,14 @@ public class FXMetaModel<M : Meta>(
        //add listener to the root node if possible
        if (root is ObservableMeta) {
            root.onChange(this) { changed ->
-                if (changed.startsWith(nodeName)) {
-                    if (nodeName.length == changed.length) existingNode.invalidate()
-                    else if (changed.length == nodeName.length + 1) children.invalidate()
+                if (changed.startsWith(pathName)) {
+                    if (pathName.length == changed.length) existingNode.invalidate()
+                    else if (changed.length == pathName.length + 1) children.invalidate()
                }
            }
        }
    }

-    public val descriptor: MetaDescriptor? = rootDescriptor?.get(nodeName)
-
    public val existsProperty: BooleanBinding = existingNode.isNotNull

    public val exists: Boolean by existsProperty
@ -66,7 +70,7 @@ public class FXMetaModel<M : Meta>(
    }

    override fun compareTo(other: FXMetaModel<*>): Int = if (this.exists == other.exists) {
-        this.nodeName.toString().compareTo(other.nodeName.toString())
+        this.pathName.toString().compareTo(other.pathName.toString())
    } else {
        this.exists.compareTo(other.exists)
    }
@ -79,7 +83,8 @@ public class FXMetaModel<M : Meta>(
        public fun <M : Meta> root(
            node: M,
            descriptor: MetaDescriptor? = null,
+            defaultRoot: Meta? = null,
            rootName: String = "root"
-        ): FXMetaModel<M> = FXMetaModel(node, descriptor, Name.EMPTY, title = rootName)
+        ): FXMetaModel<M> = FXMetaModel(node, descriptor, defaultRoot, Name.EMPTY, title = rootName)
    }
 }
--- a/visionforge-fx/src/main/kotlin/space/kscience/visionforge/editor/MetaViewer.kt
+++ b/visionforge-fx/src/main/kotlin/space/kscience/visionforge/editor/MetaViewer.kt
@ -26,14 +26,12 @@ import space.kscience.visionforge.dfIconView
 import tornadofx.*

 public class MetaViewer(
-    private val rootNode: FXMetaModel<Meta>,
+    private val rootNode: FXMetaModel<out Meta>,
    title: String = "Meta viewer"
 ) : Fragment(title, dfIconView) {

    public constructor(meta: Meta, title: String = "Meta viewer") : this(
-        FXMetaModel.root(
-            meta
-        ), title = title
+        FXMetaModel.root(meta), title = title
    )

    override val root: BorderPane = borderpane {
--- a/visionforge-fx/src/main/kotlin/space/kscience/visionforge/editor/MutableMetaEditor.kt
+++ b/visionforge-fx/src/main/kotlin/space/kscience/visionforge/editor/MutableMetaEditor.kt
@ -13,7 +13,6 @@ import javafx.scene.paint.Color
 import javafx.scene.text.Text
 import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.meta.MutableMeta
-import space.kscience.dataforge.meta.descriptors.MetaDescriptor
 import space.kscience.dataforge.meta.remove
 import space.kscience.visionforge.dfIconView
 import tornadofx.*
@ -25,16 +24,16 @@ import tornadofx.*
 */
 public class MutableMetaEditor(
    public val rootNode: FXMetaModel<MutableMeta>,
-    public val allowNew: Boolean = true,
-    title: String = "Configuration editor"
+    //public val allowNew: Boolean = true,
+    title: String = "Meta editor"
 ) : Fragment(title = title, icon = dfIconView) {
    //TODO replace parameters by properties
-
-    public constructor(
-        MutableMeta: MutableMeta,
-        descriptor: MetaDescriptor?,
-        title: String = "Configuration editor"
-    ) : this(FXMetaModel.root(MutableMeta, descriptor = descriptor), title = title)
+//
+//    public constructor(
+//        MutableMeta: MutableMeta,
+//        descriptor: MetaDescriptor?,
+//        title: String = "Configuration editor"
+//    ) : this(FXMetaModel.root(MutableMeta, descriptor = descriptor), title = title)

    override val root: BorderPane = borderpane {
        center = treetableview<FXMetaModel<MutableMeta>> {
@ -65,7 +64,7 @@ public class MutableMetaEditor(
                                        contextmenu {
                                            item("Remove") {
                                                action {
-                                                    content.root.remove(content.nodeName)
+                                                    content.root.remove(content.pathName)
                                                }
                                            }
                                        }
@ -128,7 +127,7 @@ public class MutableMetaEditor(
                        item.valueProperty,
                        item.descriptor
                    ) { value ->
-                        item.root.setValue(item.nodeName, value)
+                        item.root.setValue(item.pathName, value)
                    }
                    graphic = chooser.node

--- a/visionforge-fx/src/main/kotlin/space/kscience/visionforge/editor/VisionEditorFragment.kt
+++ b/visionforge-fx/src/main/kotlin/space/kscience/visionforge/editor/VisionEditorFragment.kt
@ -5,31 +5,40 @@ import javafx.beans.property.SimpleObjectProperty
 import javafx.scene.Node
 import javafx.scene.Parent
 import javafx.scene.layout.VBox
+import space.kscience.dataforge.meta.MutableMeta
 import space.kscience.dataforge.meta.ObservableMutableMeta
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
+import space.kscience.dataforge.names.Name
 import space.kscience.visionforge.Vision
 import space.kscience.visionforge.computeProperties
 import space.kscience.visionforge.getStyle
 import space.kscience.visionforge.styles
 import tornadofx.*

-public class VisionEditorFragment(public val selector: (Vision) -> ObservableMutableMeta = {it.computeProperties()}) : Fragment() {
+public class VisionEditorFragment : Fragment() {

    public val visionProperty: SimpleObjectProperty<Vision> = SimpleObjectProperty<Vision>()
    public var vision: Vision? by visionProperty
    public val descriptorProperty: SimpleObjectProperty<MetaDescriptor> = SimpleObjectProperty<MetaDescriptor>()

    private val configProperty: Binding<ObservableMutableMeta?> = visionProperty.objectBinding { vision ->
-        vision?.let(selector)
+        vision?.meta
    }

    private val configEditorProperty: Binding<Node?> = configProperty.objectBinding(descriptorProperty) {
-        it?.let {
-            MutableMetaEditor(it, descriptorProperty.get()).root
+        it?.let { meta ->
+            val node:FXMetaModel<MutableMeta> = FXMetaModel(
+                meta,
+                vision?.descriptor,
+                vision?.computeProperties(),
+                Name.EMPTY,
+                "Vision properties"
+            )
+            MutableMetaEditor(node).root
        }
    }

-    private val styleBoxProperty: Binding<Node?> = configProperty.objectBinding() {
+    private val styleBoxProperty: Binding<Node?> = configProperty.objectBinding {
        VBox().apply {
            vision?.styles?.forEach { styleName ->
                val styleMeta = vision?.getStyle(styleName)
--- a/visionforge-fx/src/main/kotlin/space/kscience/visionforge/solid/FX3DPlugin.kt
+++ b/visionforge-fx/src/main/kotlin/space/kscience/visionforge/solid/FX3DPlugin.kt
@ -24,7 +24,7 @@ import kotlin.collections.set
 import kotlin.math.PI
 import kotlin.reflect.KClass

-class FX3DPlugin : AbstractPlugin() {
+public class FX3DPlugin : AbstractPlugin() {
    override val tag: PluginTag get() = Companion.tag

    private val objectFactories = HashMap<KClass<out Solid>, FX3DFactory<*>>()
@ -43,7 +43,7 @@ class FX3DPlugin : AbstractPlugin() {
                as FX3DFactory<Solid>?
    }

-    fun buildNode(obj: Solid): Node {
+    public fun buildNode(obj: Solid): Node {
        val binding = VisualObjectFXBinding(this, obj)
        return when (obj) {
            is SolidReferenceGroup -> referenceFactory(obj, binding)
--- a/visionforge-fx/src/main/kotlin/space/kscience/visionforge/solid/FXMaterials.kt
+++ b/visionforge-fx/src/main/kotlin/space/kscience/visionforge/solid/FXMaterials.kt
@ -37,24 +37,22 @@ public object FXMaterials {
 * Infer color based on meta item
 * @param opacity default opacity
 */
-public fun Meta.color(opacity: Double = 1.0): Color {
-    return value?.let {
-        if (it.type == ValueType.NUMBER) {
-            val int = it.int
-            val red = int and 0x00ff0000 shr 16
-            val green = int and 0x0000ff00 shr 8
-            val blue = int and 0x000000ff
-            Color.rgb(red, green, blue, opacity)
-        } else {
-            Color.web(it.string)
-        }
-    } ?: Color.rgb(
-        this[Colors.RED_KEY]?.int ?: 0,
-        this[Colors.GREEN_KEY]?.int ?: 0,
-        this[Colors.BLUE_KEY]?.int ?: 0,
-        this[SolidMaterial.OPACITY_KEY]?.double ?: opacity
-    )
-}
+public fun Meta.color(opacity: Double = 1.0): Color = value?.let {
+    if (it.type == ValueType.NUMBER) {
+        val int = it.int
+        val red = int and 0x00ff0000 shr 16
+        val green = int and 0x0000ff00 shr 8
+        val blue = int and 0x000000ff
+        Color.rgb(red, green, blue, opacity)
+    } else {
+        Color.web(it.string)
+    }
+} ?: Color.rgb(
+    this[Colors.RED_KEY]?.int ?: 0,
+    this[Colors.GREEN_KEY]?.int ?: 0,
+    this[Colors.BLUE_KEY]?.int ?: 0,
+    this[SolidMaterial.OPACITY_KEY]?.double ?: opacity
+)

 /**
 * Infer FX material based on meta item
--- a/visionforge-fx/src/main/kotlin/space/kscience/visionforge/solid/FXReferenceFactory.kt
+++ b/visionforge-fx/src/main/kotlin/space/kscience/visionforge/solid/FXReferenceFactory.kt
@ -10,7 +10,7 @@ import space.kscience.visionforge.Vision
 import space.kscience.visionforge.onPropertyChange
 import kotlin.reflect.KClass

-class FXReferenceFactory(val plugin: FX3DPlugin) : FX3DFactory<SolidReferenceGroup> {
+public class FXReferenceFactory(public val plugin: FX3DPlugin) : FX3DFactory<SolidReferenceGroup> {
    override val type: KClass<in SolidReferenceGroup> get() = SolidReferenceGroup::class

    override fun invoke(obj: SolidReferenceGroup, binding: VisualObjectFXBinding): Node {
--- a/visionforge-gdml/src/commonMain/kotlin/space/kscience/visionforge/gdml/GdmlTransformer.kt
+++ b/visionforge-gdml/src/commonMain/kotlin/space/kscience/visionforge/gdml/GdmlTransformer.kt
@ -441,20 +441,6 @@ private class GdmlTransformerEnv(val settings: GdmlTransformer) {
        }
        final.useStyle(rootStyle)

-        //inline prototypes
-//        referenceStore.forEach { (protoName, list) ->
-//            val proxy = list.singleOrNull() ?: return@forEach
-//            val parent = proxy.parent as? MutableVisionGroup ?: return@forEach
-//            val token = parent.children.entries.find { it.value == proxy }?.key ?: error("Inconsistent reference cache")
-//            val prototype = proto[protoName] as? Solid ?:  error("Inconsistent reference cache")
-//            prototype.parent = null
-//            parent[token] = prototype
-//            prototype.updateFrom(proxy)
-//
-//            //FIXME update prototype
-//            proto[protoName] = null
-//        }
-
        final.prototypes {
            proto.children.forEach { (token, item) ->
                item.parent = null
--- a/visionforge-plotly/src/commonMain/kotlin/space/kscience/visionforge/plotly/VisionOfPlotly.kt
+++ b/visionforge-plotly/src/commonMain/kotlin/space/kscience/visionforge/plotly/VisionOfPlotly.kt
@ -15,7 +15,6 @@ public class VisionOfPlotly private constructor() : VisionBase() {
    public constructor(plot: Plot) : this() {
        properties = plot.meta
    }
-
    public val plot: Plot get() = Plot(meta)
 }

--- a/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/ColorAccessor.kt
+++ b/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/ColorAccessor.kt
@ -1,29 +1,28 @@
 package space.kscience.visionforge.solid

-import space.kscience.dataforge.meta.*
 import space.kscience.dataforge.names.Name
+import space.kscience.dataforge.names.plus
+import space.kscience.dataforge.values.MutableValueProvider
 import space.kscience.dataforge.values.Value
 import space.kscience.dataforge.values.asValue
 import space.kscience.dataforge.values.string
 import space.kscience.visionforge.Colors
-import space.kscience.visionforge.Vision
 import space.kscience.visionforge.VisionBuilder
-import space.kscience.visionforge.VisionPropertyContainer
-import kotlin.jvm.JvmInline

@VisionBuilder
-public class ColorAccessor(private val colorKey: Name, private val parent: () -> MutableMetaProvider) {
+public class ColorAccessor(private val provider: MutableValueProvider, private val colorKey: Name) :
+    MutableValueProvider {
    public var value: Value?
-        get() = parent().getMeta(colorKey)?.value
+        get() = provider.getValue(colorKey)
        set(value) {
-            parent().setValue(colorKey,value)
+            provider.setValue(colorKey, value)
        }

-    public var item: Meta?
-        get() = parent().getMeta(colorKey)
-        set(value) {
-            parent().setMeta(colorKey,value)
-        }
+    override fun getValue(name: Name): Value? = provider.getValue(colorKey + name)
+
+    override fun setValue(name: Name, value: Value?) {
+        provider.setValue(colorKey + name, value)
+    }
 }

 public var ColorAccessor?.string: String?
--- a/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/Composite.kt
+++ b/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/Composite.kt
@ -2,9 +2,10 @@ package space.kscience.visionforge.solid

 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
-import space.kscience.dataforge.meta.configure
 import space.kscience.dataforge.meta.update
-import space.kscience.visionforge.*
+import space.kscience.visionforge.VisionBuilder
+import space.kscience.visionforge.VisionContainerBuilder
+import space.kscience.visionforge.set

 public enum class CompositeType {
    SUM, // Dumb sum of meshes
@ -30,34 +31,38 @@ public inline fun VisionContainerBuilder<Solid>.composite(
    val group = SolidGroup().apply(builder)
    val children = group.children.values.filterIsInstance<Solid>()
    if (children.size != 2) error("Composite requires exactly two children")
-    return Composite(type, children[0], children[1]).apply {
-        configure {
-            update(group.meta)
-        }
-        if (group.position != null) {
-            position = group.position
-        }
-        if (group.rotation != null) {
-            rotation = group.rotation
-        }
-        if (group.scale != null) {
-            scale = group.scale
-        }
-        set(name, this)
+    val res = Composite(type, children[0], children[1])
+
+    res.meta.update(group.meta)
+
+    if (group.position != null) {
+        res.position = group.position
    }
+    if (group.rotation != null) {
+        res.rotation = group.rotation
+    }
+    if (group.scale != null) {
+        res.scale = group.scale
+    }
+
+    set(name, res)
+    return res
 }

@VisionBuilder
-public inline fun VisionContainerBuilder<Solid>.union(name: String? = null, builder: SolidGroup.() -> Unit): Composite =
-    composite(CompositeType.UNION, name, builder = builder)
+public inline fun VisionContainerBuilder<Solid>.union(
+    name: String? = null,
+    builder: SolidGroup.() -> Unit
+): Composite = composite(CompositeType.UNION, name, builder = builder)

@VisionBuilder
-public inline fun VisionContainerBuilder<Solid>.subtract(name: String? = null, builder: SolidGroup.() -> Unit): Composite =
-    composite(CompositeType.SUBTRACT, name, builder = builder)
+public inline fun VisionContainerBuilder<Solid>.subtract(
+    name: String? = null,
+    builder: SolidGroup.() -> Unit
+): Composite = composite(CompositeType.SUBTRACT, name, builder = builder)

@VisionBuilder
 public inline fun VisionContainerBuilder<Solid>.intersect(
    name: String? = null,
    builder: SolidGroup.() -> Unit,
-): Composite =
-    composite(CompositeType.INTERSECT, name, builder = builder)
+): Composite = composite(CompositeType.INTERSECT, name, builder = builder)
--- a/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidBase.kt
+++ b/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidBase.kt
@ -2,6 +2,7 @@ package space.kscience.visionforge.solid

 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
+import space.kscience.dataforge.meta.MutableMeta
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
 import space.kscience.visionforge.VisionBase
 import space.kscience.visionforge.VisionChange
@ -9,6 +10,9 @@ import space.kscience.visionforge.VisionChange
@Serializable
@SerialName("solid")
 public open class SolidBase : VisionBase(), Solid {
+    //FIXME to be removed after https://github.com/Kotlin/kotlinx.serialization/issues/1602 fix
+    override var properties: MutableMeta? = null
+
    override val descriptor: MetaDescriptor get() = Solid.descriptor

    override fun update(change: VisionChange) {
--- a/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidGroup.kt
+++ b/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidGroup.kt
@ -2,6 +2,7 @@ package space.kscience.visionforge.solid

 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
+import space.kscience.dataforge.meta.MutableMeta
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.NameToken
@ -31,6 +32,9 @@ public interface PrototypeHolder {
@SerialName("group.solid")
 public class SolidGroup : VisionGroupBase(), Solid, PrototypeHolder {

+    //FIXME to be removed after https://github.com/Kotlin/kotlinx.serialization/issues/1602 fix
+    override var properties: MutableMeta? = null
+
    override val children: Map<NameToken, Vision> get() = super.childrenInternal.filter { it.key != PROTOTYPES_TOKEN }

    private var prototypes: MutableVisionGroup?
--- a/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidMaterial.kt
+++ b/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidMaterial.kt
@ -20,14 +20,14 @@ public class SolidMaterial : Scheme() {
    /**
     * Primary web-color for the material
     */
-    public val color: ColorAccessor = ColorAccessor(COLOR_KEY) { meta }
+    public val color: ColorAccessor = ColorAccessor(meta, COLOR_KEY)

    /**
     * Specular color for phong material
     */
-    public val specularColor: ColorAccessor = ColorAccessor(SPECULAR_COLOR_KEY) { meta }
+    public val specularColor: ColorAccessor = ColorAccessor(meta, SPECULAR_COLOR_KEY)

-    public val emissiveColor: ColorAccessor = ColorAccessor("emissiveColor".asName()) { meta }
+    public val emissiveColor: ColorAccessor = ColorAccessor(meta, "emissiveColor".asName())

    /**
     * Opacity
@ -55,33 +55,29 @@ public class SolidMaterial : Scheme() {
            //must be lazy to avoid initialization bug
            MetaDescriptor {
                inherited = true
-                usesStyles = true

                value(COLOR_KEY, ValueType.STRING, ValueType.NUMBER) {
                    inherited = true
-                    usesStyles = true
                    widgetType = "color"
                }

                value(SPECULAR_COLOR_KEY, ValueType.STRING, ValueType.NUMBER) {
                    inherited = true
-                    usesStyles = true
                    widgetType = "color"
                    hide()
                }

                value(OPACITY_KEY, ValueType.NUMBER) {
                    inherited = true
-                    usesStyles = true
                    default(1.0)
                    attributes["min"] = 0.0
                    attributes["max"] = 1.0
                    attributes["step"] = 0.1
                    widgetType = "slider"
                }
+
                value(WIREFRAME_KEY, ValueType.BOOLEAN) {
                    inherited = true
-                    usesStyles = true
                    default(false)
                }
            }
@ -90,7 +86,7 @@ public class SolidMaterial : Scheme() {
 }

 public val Solid.color: ColorAccessor
-    get() = ColorAccessor(MATERIAL_COLOR_KEY) { computeProperties() }
+    get() = ColorAccessor(computePropertyValues(), MATERIAL_COLOR_KEY)

 public var Solid.material: SolidMaterial?
    get() = computePropertyNode(MATERIAL_KEY)?.let { SolidMaterial.read(it) }
--- a/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidReference.kt
+++ b/visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidReference.kt
@ -2,6 +2,7 @@ package space.kscience.visionforge.solid

 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
+import space.kscience.dataforge.meta.MutableMeta
 import space.kscience.dataforge.meta.ObservableMutableMeta
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
 import space.kscience.dataforge.meta.get
@ -12,11 +13,16 @@ import space.kscience.visionforge.*

 public interface SolidReference : VisionGroup {
    /**
-     * The prototype for this reference. Always returns a "real" prototype, not a reference
+     * The prototype for this reference.
     */
    public val prototype: Solid

-    override fun getPropertyValue(name: Name, inherit: Boolean, includeStyles: Boolean, includeDefaults: Boolean): Value? {
+    override fun getPropertyValue(
+        name: Name,
+        inherit: Boolean,
+        includeStyles: Boolean,
+        includeDefaults: Boolean
+    ): Value? {
        meta[name]?.value?.let { return it }
        if (includeStyles) {
            getStyleProperty(name)?.let { return it }
@ -56,6 +62,8 @@ public class SolidReferenceGroup(
    public val refName: Name,
 ) : VisionBase(), SolidReference, VisionGroup, Solid {

+    override var properties: MutableMeta? = null
+
    /**
     * Recursively search for defined template in the parent
     */
@ -72,8 +80,12 @@ public class SolidReferenceGroup(
                ReferenceChild(this, it.key.asName())
            } ?: emptyMap()

-    override fun getPropertyValue(name: Name, inherit: Boolean, includeStyles: Boolean, includeDefaults: Boolean): Value? =
-        super<SolidReference>.getPropertyValue(name, inherit, includeStyles, includeDefaults)
+    override fun getPropertyValue(
+        name: Name,
+        inherit: Boolean,
+        includeStyles: Boolean,
+        includeDefaults: Boolean
+    ): Value? = super<SolidReference>.getPropertyValue(name, inherit, includeStyles, includeDefaults)

    override val descriptor: MetaDescriptor get() = prototype.descriptor

@ -88,11 +100,14 @@ public class SolidReferenceGroup(
    ) : SolidReference, VisionGroup, Solid {

        override val prototype: Solid by lazy {
-            if (refName.isEmpty()) owner.prototype else {
+            if (refName.isEmpty()) {
+                owner.prototype
+            } else {
                val proto = (owner.prototype as? VisionGroup)?.get(refName)
                    ?: error("Prototype with name $refName not found in SolidReferenceGroup ${owner.refName}")
-                proto.unref as? Solid
-                    ?: error("Prototype with name $refName is ${proto::class} but expected Solid")
+                proto as? Solid ?: error("Prototype with name $refName is ${proto::class} but expected Solid")
+//                proto.unref as? Solid
+//                    ?: error("Prototype with name $refName is ${proto::class} but expected Solid")
            }
        }

--- a/visionforge-solid/src/commonTest/kotlin/space/kscience/visionforge/solid/PropertyTest.kt
+++ b/visionforge-solid/src/commonTest/kotlin/space/kscience/visionforge/solid/PropertyTest.kt
@ -1,6 +1,7 @@
 package space.kscience.visionforge.solid

-import space.kscience.dataforge.meta.*
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.string
 import space.kscience.dataforge.names.asName
 import space.kscience.dataforge.values.int
 import space.kscience.visionforge.*
@ -10,13 +11,32 @@ import kotlin.test.assertEquals
@Suppress("UNUSED_VARIABLE")
 class PropertyTest {
    @Test
-    fun testColorUpdate(){
+    fun testColor(){
        val box = Box(10.0f, 10.0f,10.0f)
        box.material {
            //meta["color"] = "pink"
            color("pink")
        }
        assertEquals("pink", box.meta["material.color"]?.string)
+        assertEquals("pink", box.color.string)
+    }
+
+    @Test
+    fun testColorUpdate(){
+        val box = Box(10.0f, 10.0f,10.0f)
+
+        var c: String? = null
+        box.onPropertyChange {
+            if(it == SolidMaterial.MATERIAL_COLOR_KEY){
+                c = box.color.string
+            }
+        }
+
+        box.material {
+            color("pink")
+        }
+
+        assertEquals("pink", c)
    }

    @Test
--- a/visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/MeshThreeFactory.kt
+++ b/visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/MeshThreeFactory.kt
@ -4,17 +4,20 @@ import info.laht.threekt.core.BufferGeometry
 import info.laht.threekt.geometries.EdgesGeometry
 import info.laht.threekt.objects.LineSegments
 import info.laht.threekt.objects.Mesh
-import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.updateWith
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.asName
 import space.kscience.dataforge.names.plus
 import space.kscience.dataforge.names.startsWith
 import space.kscience.dataforge.values.boolean
-import space.kscience.visionforge.computeProperties
+import space.kscience.visionforge.computePropertyNode
 import space.kscience.visionforge.onPropertyChange
+import space.kscience.visionforge.setProperty
 import space.kscience.visionforge.solid.Solid
 import space.kscience.visionforge.solid.SolidMaterial
 import space.kscience.visionforge.solid.layer
+import space.kscience.visionforge.solid.three.MeshThreeFactory.Companion.EDGES_ENABLED_KEY
+import space.kscience.visionforge.solid.three.MeshThreeFactory.Companion.EDGES_MATERIAL_KEY
 import kotlin.reflect.KClass

 /**
@ -62,6 +65,7 @@ public abstract class MeshThreeFactory<in T : Solid>(

    public companion object {
        public val EDGES_KEY: Name = "edges".asName()
+
        //public val WIREFRAME_KEY: Name = "wireframe".asName()
        public val ENABLED_KEY: Name = "enabled".asName()
        public val EDGES_ENABLED_KEY: Name = EDGES_KEY + ENABLED_KEY
@ -71,6 +75,11 @@ public abstract class MeshThreeFactory<in T : Solid>(
    }
 }

+public fun Solid.edges(enabled: Boolean = true, block: SolidMaterial.() -> Unit = {}) {
+    setProperty(EDGES_ENABLED_KEY, enabled)
+    meta.getOrCreate(EDGES_MATERIAL_KEY).updateWith(SolidMaterial, block)
+}
+
 internal fun Mesh.applyProperties(obj: Solid): Mesh = apply {
    updateMaterial(obj)
    applyEdges(obj)
@ -84,12 +93,9 @@ internal fun Mesh.applyProperties(obj: Solid): Mesh = apply {
 public fun Mesh.applyEdges(obj: Solid) {
    val edges = children.find { it.name == "@edges" } as? LineSegments
    //inherited edges definition, enabled by default
-    if (obj.getPropertyValue(MeshThreeFactory.EDGES_ENABLED_KEY, inherit = true, includeStyles = true)?.boolean != false) {
+    if (obj.getPropertyValue(EDGES_ENABLED_KEY, inherit = true)?.boolean != false) {
        val bufferGeometry = geometry as? BufferGeometry ?: return
-        val material = ThreeMaterials.getLineMaterial(
-            obj.computeProperties().get(MeshThreeFactory.EDGES_MATERIAL_KEY),
-            true
-        )
+        val material = ThreeMaterials.getLineMaterial(obj.computePropertyNode(EDGES_MATERIAL_KEY), true)
        if (edges == null) {
            add(
                LineSegments(
--- a/visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeCanvasLabelFactory.kt
+++ b/visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeCanvasLabelFactory.kt
@ -12,7 +12,7 @@ import org.w3c.dom.CanvasTextBaseline
 import org.w3c.dom.HTMLCanvasElement
 import org.w3c.dom.MIDDLE
 import space.kscience.visionforge.solid.SolidLabel
-import space.kscience.visionforge.solid.color
+import space.kscience.visionforge.solid.SolidMaterial
 import space.kscience.visionforge.solid.three.ThreeCanvas.Companion.DO_NOT_HIGHLIGHT_TAG
 import kotlin.reflect.KClass

@ -26,7 +26,7 @@ public object ThreeCanvasLabelFactory : ThreeFactory<SolidLabel> {
        val canvas = document.createElement("canvas") as HTMLCanvasElement
        val context = canvas.getContext("2d") as CanvasRenderingContext2D
        context.font = "Bold ${obj.fontSize}pt ${obj.fontFamily}"
-        context.fillStyle = obj.color.value ?: "black"
+        context.fillStyle = obj.getPropertyValue(SolidMaterial.MATERIAL_COLOR_KEY)?.value ?: "black"
        context.textBaseline = CanvasTextBaseline.MIDDLE
        val metrics = context.measureText(obj.text)
        //canvas.width = metrics.width.toInt()
--- a/visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeMaterials.kt
+++ b/visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeMaterials.kt
@ -3,16 +3,21 @@ package space.kscience.visionforge.solid.three
 import info.laht.threekt.materials.LineBasicMaterial
 import info.laht.threekt.materials.Material
 import info.laht.threekt.materials.MeshBasicMaterial
-import info.laht.threekt.materials.MeshPhongMaterial
 import info.laht.threekt.math.Color
 import info.laht.threekt.objects.Mesh
-import space.kscience.dataforge.meta.*
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.boolean
+import space.kscience.dataforge.meta.double
+import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.names.Name
+import space.kscience.dataforge.names.asName
 import space.kscience.dataforge.values.*
 import space.kscience.visionforge.Colors
 import space.kscience.visionforge.Vision
 import space.kscience.visionforge.computePropertyNode
+import space.kscience.visionforge.getStyleNodes
 import space.kscience.visionforge.solid.SolidMaterial
+import space.kscience.visionforge.solid.SolidReference


 public object ThreeMaterials {
@ -56,56 +61,57 @@ public object ThreeMaterials {

    private val materialCache = HashMap<Meta, Material>()

-    internal fun buildMaterial(meta: Meta): Material {
-        val material = SolidMaterial.read(meta)
-        return meta[SolidMaterial.SPECULAR_COLOR_KEY]?.let { specularColor ->
-            MeshPhongMaterial().apply {
-                color = meta[SolidMaterial.COLOR_KEY]?.threeColor() ?: DEFAULT_COLOR
-                specular = specularColor.threeColor()
-                emissive = material.emissiveColor.item?.threeColor() ?: specular
-                reflectivity = 0.5
-                refractionRatio = 1.0
-                shininess = 100.0
-                opacity = meta[SolidMaterial.OPACITY_KEY]?.double ?: 1.0
-                transparent = opacity < 1.0
-                wireframe = meta[SolidMaterial.WIREFRAME_KEY].boolean ?: false
-                needsUpdate = true
-            }
-        } ?: MeshBasicMaterial().apply {
-            color = meta[SolidMaterial.COLOR_KEY]?.threeColor() ?: DEFAULT_COLOR
-            opacity = meta[SolidMaterial.OPACITY_KEY]?.double ?: 1.0
-            transparent = opacity < 1.0
-            wireframe = meta[SolidMaterial.WIREFRAME_KEY].boolean ?: false
-            needsUpdate = true
-        }
-
+    internal fun buildMaterial(meta: Meta): Material = MeshBasicMaterial().apply {
+        color = meta[SolidMaterial.COLOR_KEY]?.threeColor() ?: DEFAULT_COLOR
+        opacity = meta[SolidMaterial.OPACITY_KEY]?.double ?: 1.0
+        transparent = opacity < 1.0
+        wireframe = meta[SolidMaterial.WIREFRAME_KEY].boolean ?: false
+        needsUpdate = true
    }
+//        val material = SolidMaterial.read(meta)
+//        return meta[SolidMaterial.SPECULAR_COLOR_KEY]?.let { specularColor ->
+//            MeshPhongMaterial().apply {
+//                color = meta[SolidMaterial.COLOR_KEY]?.threeColor() ?: DEFAULT_COLOR
+//                specular = specularColor.threeColor()
+//                emissive = material.emissiveColor.threeColor() ?: specular
+//                reflectivity = 0.5
+//                refractionRatio = 1.0
+//                shininess = 100.0
+//                opacity = meta[SolidMaterial.OPACITY_KEY]?.double ?: 1.0
+//                transparent = opacity < 1.0
+//                wireframe = meta[SolidMaterial.WIREFRAME_KEY].boolean ?: false
+//                needsUpdate = true
+//            }
+//        } ?: MeshBasicMaterial().apply {
+//            color = meta[SolidMaterial.COLOR_KEY]?.threeColor() ?: DEFAULT_COLOR
+//            opacity = meta[SolidMaterial.OPACITY_KEY]?.double ?: 1.0
+//            transparent = opacity < 1.0
+//            wireframe = meta[SolidMaterial.WIREFRAME_KEY].boolean ?: false
+//            needsUpdate = true
+//        }

    internal fun cacheMaterial(meta: Meta): Material = materialCache.getOrPut(meta) {
        buildMaterial(meta).apply {
            cached = true
        }
    }
-
 }

 /**
- * Infer color based on meta item
+ * Compute color
 */
-public fun Meta.threeColor(): Color {
-    return value?.let { value ->
-        if (value.type == ValueType.NUMBER) {
-            val int = value.int
-            Color(int)
-        } else {
-            Color(value.string)
-        }
-    } ?: Color(
-        this[Colors.RED_KEY]?.int ?: 0,
-        this[Colors.GREEN_KEY]?.int ?: 0,
-        this[Colors.BLUE_KEY]?.int ?: 0
-    )
-}
+public fun Meta.threeColor(): Color = getValue(Name.EMPTY)?.let { value ->
+    if (value.type == ValueType.NUMBER) {
+        val int = value.int
+        Color(int)
+    } else {
+        Color(value.string)
+    }
+} ?: Color(
+    getValue(Colors.RED_KEY.asName())?.int ?: 0,
+    getValue(Colors.GREEN_KEY.asName())?.int ?: 0,
+    getValue(Colors.BLUE_KEY.asName())?.int ?: 0
+)

 private var Material.cached: Boolean
    get() = userData["cached"] == true
@ -114,31 +120,19 @@ private var Material.cached: Boolean
    }

 public fun Mesh.updateMaterial(vision: Vision) {
-    //val meta = vision.getProperty(SolidMaterial.MATERIAL_KEY, inherit = true).node
    val ownMaterialMeta = vision.meta.getMeta(SolidMaterial.MATERIAL_KEY)
-    val parentMaterialMeta = vision.parent?.getPropertyValue(
-        SolidMaterial.MATERIAL_KEY,
-        inherit = true,
-        includeStyles = false,
-        includeDefaults = false
-    )
-
-    material = when {
-        ownMaterialMeta == null && parentMaterialMeta == null -> {
-            //If material is style-based, use cached
-            vision.computePropertyNode(
-                SolidMaterial.MATERIAL_KEY,
-            )?.let {
+    if (ownMaterialMeta == null) {
+        if (vision is SolidReference && vision.getStyleNodes(SolidMaterial.MATERIAL_KEY).isEmpty()) {
+            updateMaterial(vision.prototype)
+        } else {
+            material = vision.computePropertyNode(SolidMaterial.MATERIAL_KEY)?.let {
                ThreeMaterials.cacheMaterial(it)
            } ?: ThreeMaterials.DEFAULT
        }
-        else -> {
-            vision.computePropertyNode(
-                SolidMaterial.MATERIAL_KEY,
-            )?.let {
-                ThreeMaterials.buildMaterial(it)
-            } ?: ThreeMaterials.DEFAULT
-        }
+    } else {
+        material = vision.computePropertyNode(SolidMaterial.MATERIAL_KEY)?.let {
+            ThreeMaterials.buildMaterial(it)
+        } ?: ThreeMaterials.DEFAULT
    }
 }

@ -149,17 +143,14 @@ public fun Mesh.updateMaterialProperty(vision: Vision, propertyName: Name) {
    } else {
        when (propertyName) {
            SolidMaterial.MATERIAL_COLOR_KEY -> {
-                material.asDynamic().color = vision.computePropertyNode(
-                    SolidMaterial.MATERIAL_COLOR_KEY,
-                )?.threeColor() ?: ThreeMaterials.DEFAULT_COLOR
+                material.asDynamic().color = vision.computePropertyNode(SolidMaterial.MATERIAL_COLOR_KEY)?.threeColor()
+                    ?: ThreeMaterials.DEFAULT_COLOR
                material.needsUpdate = true
            }
            SolidMaterial.MATERIAL_OPACITY_KEY -> {
                val opacity = vision.getPropertyValue(
                    SolidMaterial.MATERIAL_OPACITY_KEY,
                    inherit = true,
-                    includeStyles = true,
-                    includeDefaults = false
                )?.double ?: 1.0
                material.opacity = opacity
                material.transparent = opacity < 1.0
@ -169,8 +160,6 @@ public fun Mesh.updateMaterialProperty(vision: Vision, propertyName: Name) {
                material.asDynamic().wireframe = vision.getPropertyValue(
                    SolidMaterial.MATERIAL_WIREFRAME_KEY,
                    inherit = true,
-                    includeStyles = true,
-                    includeDefaults = false
                )?.boolean ?: false
                material.needsUpdate = true
            }
--- a/visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeReferenceFactory.kt
+++ b/visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeReferenceFactory.kt
@ -1,6 +1,5 @@
 package space.kscience.visionforge.solid.three

-import info.laht.threekt.core.BufferGeometry
 import info.laht.threekt.core.Object3D
 import info.laht.threekt.objects.Mesh
 import space.kscience.dataforge.names.Name
@ -19,7 +18,7 @@ public object ThreeReferenceFactory : ThreeFactory<SolidReferenceGroup> {

    private fun Object3D.replicate(): Object3D {
        return when (this) {
-            is Mesh -> Mesh(geometry as BufferGeometry, material).also {
+            is Mesh -> Mesh(geometry, material).also {
                it.applyMatrix4(matrix)
            }
            else -> clone(false)