Saving imageRef from GLPaint creates completely black image

Question

Hi I am trying out drawing app and have a problem when it comes to saving the image that is drawn. Right now I\'m very early in learning this but I have added code from: How

Answer 1

The save method should be called within the scope of the OpenGL context. To solve this you can move your method within the same rendering .m file and call this function from outside.

Also you need to consider OpenGL clear color.

(detail explanation in comments, lol)