Minor fixes

src/drawables/empty-drawable.ts

@@ -3,6 +3,8 @@ import { Drawable } from './drawable';
 import { DrawableDescriptor } from './drawable-descriptor';
 
 /**
+ * Required for specifying the correct TS types.
+ *
  * @internal
  */
 export class EmptyDrawable extends Drawable {

src/drawables/lights/light-drawable.ts

@@ -2,7 +2,7 @@ import { mat2d, vec2, vec3 } from 'gl-matrix';
 import { Drawable } from '../../main';
 
 /** @internal */
-export class LightDrawable extends Drawable {
+export abstract class LightDrawable extends Drawable {
   protected lightnessRatio = 1;
 
   constructor(public center: vec2, public color: vec3, public intensity: number) {

src/graphics/rendering/renderer/noise-renderer.ts

@@ -9,13 +9,13 @@ import randomVertex from '../shaders/random-vs.glsl';
 
 /**
  * Create a renderer, draw a 2D noise texture with it,
- * then destroy the used resources, while returning the generated texture
+ * then destroy the used resources,
- * in the form of a canvas.
+ * while returning the generated texture in the form of a canvas.
  *
- * @param textureSize The resolution of the end result.
+ * @param textureSize The resolution of the end result
  * @param scale A starting value can be 15
  * @param amplitude A starting value can be 1
- * @param ignoreWebGL2 Ignore WebGL2, even when its available.
+ * @param ignoreWebGL2 Ignore WebGL2, even when it's available
  */
 export const renderNoise = async (
   textureSize: vec2,
@@ -39,7 +39,6 @@ export const renderNoise = async (
   await compiler.compilePrograms();
   await pogramPromise;
 
-  program.bind();
   program.draw({
     scale,
     amplitude,