diff --git a/build.gradle b/build.gradle
index c0078fb7..aa23836e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,3 +1,5 @@
+def openrndrUseSnapshot = false
+
 buildscript {
     repositories {
         jcenter()
@@ -14,7 +16,7 @@ buildscript {
 apply plugin: 'org.jetbrains.dokka'
 
 project.ext {
-    openrndrVersion = "0.3.44-rc.3"
+    openrndrVersion = openrndrUseSnapshot? "0.4.0-SNAPSHOT" : "0.3.44-rc.4"
     kotlinVersion = "1.3.72"
     spekVersion = "2.0.11"
     libfreenectVersion = "0.5.7-1.5.3"
@@ -59,6 +61,10 @@ allprojects {
 
 
     repositories {
+        if (openrndrUseSnapshot) {
+            mavenLocal()
+        }
+
         jcenter()
         maven {
             url = "https://dl.bintray.com/openrndr/openrndr"
diff --git a/openrndr-demos/src/demo/kotlin/DemoCircleBatch03.kt b/openrndr-demos/src/demo/kotlin/DemoCircleBatch03.kt
new file mode 100644
index 00000000..c23e08ca
--- /dev/null
+++ b/openrndr-demos/src/demo/kotlin/DemoCircleBatch03.kt
@@ -0,0 +1,31 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.color.hsv
+import org.openrndr.extra.noise.simplex
+import kotlin.math.abs
+
+/*
+This program demonstrates dynamic circle batches
+ */
+
+fun main() = application {
+    program {
+
+        extend {
+            drawer.clear(ColorRGBa.GRAY)
+            drawer.circles {
+                this.fill = ColorRGBa.PINK
+                for (i in 0 until 10000) {
+                    val hue = simplex(i * 403, i * 149.0 + 0.2 * seconds) * 180.0 + 180.0
+                    fill = hsv(hue, 0.5, 0.3).toRGBa()
+                    stroke = hsv(hue + 180.0, 0.5, 1.0).toRGBa()
+                    val x = simplex(i * 337, i * 43.0 + 0.1 * seconds) * width / 2.0 + width / 2.0
+                    val y = simplex(i * 439, i * 39.0 - 0.1 * seconds) * height / 2.0 + height / 2.0
+                    val radius = simplex(i * 139, i * 51.0 + seconds * 0.43) * 20.0 + 20.0
+                    strokeWeight = abs(simplex(i * 139, i * 51.0 + seconds * 0.43) * radius * 0.5)
+                    circle(x, y, radius)
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/openrndr-demos/src/demo/kotlin/DemoTessShader01.kt b/openrndr-demos/src/demo/kotlin/DemoTessShader01.kt
index 7be9c755..33ee1bbc 100644
--- a/openrndr-demos/src/demo/kotlin/DemoTessShader01.kt
+++ b/openrndr-demos/src/demo/kotlin/DemoTessShader01.kt
@@ -1,8 +1,6 @@
 import org.openrndr.application
 import org.openrndr.color.ColorRGBa
 import org.openrndr.draw.*
-import org.openrndr.extras.camera.Orbital
-import org.openrndr.extras.meshgenerators.boxMesh
 import org.openrndr.math.Vector3
 import org.openrndr.resourceUrl