diff --git a/demo/playground/src/jsMain/kotlin/playgroundMain.kt b/demo/playground/src/jsMain/kotlin/playgroundMain.kt
index 71431841..9ee2dc93 100644
--- a/demo/playground/src/jsMain/kotlin/playgroundMain.kt
+++ b/demo/playground/src/jsMain/kotlin/playgroundMain.kt
@@ -1,10 +1,10 @@
 import space.kscience.dataforge.misc.DFExperimental
 import space.kscience.visionforge.plotly.PlotlyPlugin
-import space.kscience.visionforge.ring.ThreeWithControlsPlugin
 import space.kscience.visionforge.runVisionClient
+import space.kscience.visionforge.solid.three.ThreePlugin
 
 @DFExperimental
 fun main() = runVisionClient {
     plugin(PlotlyPlugin)
-    plugin(ThreeWithControlsPlugin)
+    plugin(ThreePlugin)
 }
\ No newline at end of file
diff --git a/demo/playground/src/jvmMain/kotlin/randomSpheres.kt b/demo/playground/src/jvmMain/kotlin/randomSpheres.kt
index 855c99c1..383f3d3a 100644
--- a/demo/playground/src/jvmMain/kotlin/randomSpheres.kt
+++ b/demo/playground/src/jvmMain/kotlin/randomSpheres.kt
@@ -1,5 +1,6 @@
 package space.kscience.visionforge.examples
 
+import kotlinx.html.div
 import kotlinx.html.h1
 import space.kscience.dataforge.context.Context
 import space.kscience.visionforge.html.ResourceLocation
@@ -19,18 +20,19 @@ fun main() {
         resourceLocation = ResourceLocation.EMBED
     ) {
         h1 { +"Happy new year!" }
-        vision {
-            solid {
-                repeat(100) {
-                    sphere(5, name = "sphere[$it]") {
-                        x = random.nextDouble(-300.0, 300.0)
-                        y = random.nextDouble(-300.0, 300.0)
-                        z = random.nextDouble(-300.0, 300.0)
-                        material {
-                            color(random.nextInt())
-                            specularColor(random.nextInt())
+        div {
+            vision {
+                solid {
+                    repeat(100) {
+                        sphere(5, name = "sphere[$it]") {
+                            x = random.nextDouble(-300.0, 300.0)
+                            y = random.nextDouble(-300.0, 300.0)
+                            z = random.nextDouble(-300.0, 300.0)
+                            material {
+                                color(random.nextInt())
+                            }
+                            detail = 16
                         }
-                        detail = 16
                     }
                 }
             }
diff --git 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
index 7f79ce37..5f7ef051 100644
--- 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
@@ -59,12 +59,12 @@ public object ThreeMaterials {
     private val materialCache = HashMap<Meta, Material>()
 
     internal fun buildMaterial(meta: Meta): Material {
-        return if (meta[SolidMaterial.SPECULAR_COLOR_KEY] != null) {
+        return meta[SolidMaterial.SPECULAR_COLOR_KEY]?.let { specularColor ->
             MeshPhongMaterial().apply {
                 color = meta[SolidMaterial.COLOR_KEY]?.getColor() ?: DEFAULT_COLOR
-                specular = meta[SolidMaterial.SPECULAR_COLOR_KEY]!!.getColor()
+                specular = specularColor.getColor()
                 emissive = specular
-                reflectivity = 1.0
+                reflectivity = 0.5
                 refractionRatio = 1.0
                 shininess = 100.0
                 opacity = meta[SolidMaterial.OPACITY_KEY]?.double ?: 1.0
@@ -72,15 +72,14 @@ public object ThreeMaterials {
                 wireframe = meta[SolidMaterial.WIREFRAME_KEY].boolean ?: false
                 needsUpdate = true
             }
-        } else {
-            MeshBasicMaterial().apply {
-                color = meta[SolidMaterial.COLOR_KEY]?.getColor() ?: DEFAULT_COLOR
-                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]?.getColor() ?: 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) {