Add existing to tracked

node_modules/@cesium/engine/Source/Scene/PickDepthFramebuffer.js

@@ -0,0 +1,79 @@
+import BoundingRectangle from "../Core/BoundingRectangle.js";
+import destroyObject from "../Core/destroyObject.js";
+import FramebufferManager from "../Renderer/FramebufferManager.js";
+import PassState from "../Renderer/PassState.js";
+
+/**
+ * @private
+ */
+function PickDepthFramebuffer() {
+  this._framebuffer = new FramebufferManager({
+    color: false,
+    depthStencil: true,
+    supportsDepthTexture: true,
+  });
+  this._passState = undefined;
+}
+
+Object.defineProperties(PickDepthFramebuffer.prototype, {
+  framebuffer: {
+    get: function () {
+      return this._framebuffer.framebuffer;
+    },
+  },
+});
+
+function destroyResources(pickDepth) {
+  pickDepth._framebuffer.destroy();
+}
+
+function createResources(pickDepth, context) {
+  const width = context.drawingBufferWidth;
+  const height = context.drawingBufferHeight;
+
+  pickDepth._framebuffer.update(context, width, height);
+
+  const passState = new PassState(context);
+  passState.blendingEnabled = false;
+  passState.scissorTest = {
+    enabled: true,
+    rectangle: new BoundingRectangle(),
+  };
+  passState.viewport = new BoundingRectangle();
+  pickDepth._passState = passState;
+}
+
+PickDepthFramebuffer.prototype.update = function (
+  context,
+  drawingBufferPosition,
+  viewport,
+) {
+  const width = viewport.width;
+  const height = viewport.height;
+
+  if (this._framebuffer.isDirty(width, height)) {
+    createResources(this, context);
+  }
+
+  const framebuffer = this.framebuffer;
+  const passState = this._passState;
+  passState.framebuffer = framebuffer;
+  passState.viewport.width = width;
+  passState.viewport.height = height;
+  passState.scissorTest.rectangle.x = drawingBufferPosition.x;
+  passState.scissorTest.rectangle.y = height - drawingBufferPosition.y;
+  passState.scissorTest.rectangle.width = 1;
+  passState.scissorTest.rectangle.height = 1;
+
+  return passState;
+};
+
+PickDepthFramebuffer.prototype.isDestroyed = function () {
+  return false;
+};
+
+PickDepthFramebuffer.prototype.destroy = function () {
+  destroyResources(this);
+  return destroyObject(this);
+};
+export default PickDepthFramebuffer;