export RendererInstance and RendererBuffer in index

src/index.ts

@@ -1 +1,3 @@
 export { default as ImageEffectRenderer } from './lib/ImageEffectRenderer.js';
+export { RendererInstance } from './lib/RendererInstance.js';
+export { RendererBuffer } from './lib/RendererBuffer.js';

src/lib/ImageEffectRenderer.ts

@@ -1,5 +1,5 @@
 import {WebGLInstance} from './WebGLInstance.js';
-import RendererInstance from "./RendererInstance.js";
+import {RendererInstance} from "./RendererInstance.js";
 
 /**
  * @typedef {Object} ImageEffectRendererOptions

src/lib/RendererInstance.ts

@@ -5,7 +5,7 @@ import {ImageEffectRenderer} from "../index.js";
 import {type BufferOptions, RendererBuffer} from "./RendererBuffer.js";
 import Program from "./Program.js";
 
-export default class RendererInstance extends Renderer {
+export class RendererInstance extends Renderer {
     private static index: number = 0;
 
     public canvas: HTMLCanvasElement;