新增renderer渲染器 用于控制场景如何渲染

source/src/Graphics/Renderers/DefaultRenderer.ts

@@ -0,0 +1,12 @@
+///<reference path="./Renderer.ts" />
+class DefaultRenderer extends Renderer {
+    public render(scene: Scene) {
+        let cam = this.camera ? this.camera : scene.camera;
+
+        for (let i = 0; i < scene.renderableComponents.count; i++){
+            let renderable = scene.renderableComponents.buffer[i];
+            if (renderable.enabled && renderable.isVisibleFromCamera(cam))
+                this.renderAfterStateCheck(renderable, cam);
+        }
+    }
+}