Update pixelZoomShader.frag

assets/shaders/pixelZoomShader.frag

@@ -1,11 +1,14 @@
 #pragma header
 
 uniform float pixelZoom;
-// zooms the game 6 times
+// how it works
+// - takes the camera
+// - unzooms it to make it pixel perfect and align every pixel
+// - zooms in the result using this shader
 void main() {
     vec2 camPos = getCamPos(openfl_TextureCoordv);
 
     camPos = vec2(0.5, 0.5) + ((camPos - vec2(0.5, 0.5)) * pixelZoom);
 
     gl_FragColor = textureCam(bitmap, camPos);
-}
+}