Add volume animation update to ViewportHost

src/viewport-three/viewport-host.js

@@ -2339,6 +2339,7 @@ export class ViewportHost {
             renderObjects.edges.material.dispose();
         }
         this.brushRenderObjects.clear();
+        this.volumeAnimatedUniforms.length = 0;
     }
     clearEntityMarkers() {
         for (const renderObjects of this.entityRenderObjects.values()) {
@@ -3055,6 +3056,13 @@ export class ViewportHost {
     render = () => {
         this.animationFrame = window.requestAnimationFrame(this.render);
         this.updateTransformGizmoPose();
+        const now = performance.now();
+        const dt = this.previousFrameTime === 0 ? 0 : Math.min((now - this.previousFrameTime) / 1000, 1 / 20);
+        this.previousFrameTime = now;
+        this.volumeTime += dt;
+        for (const uniform of this.volumeAnimatedUniforms) {
+            uniform.value = this.volumeTime;
+        }
         if (this.advancedRenderingComposer !== null) {
             this.advancedRenderingComposer.render();
             return;