How would you add an outline to an 2d image in openGL? Lets say that I load the picture shown below and create a quad which uses this as its texture. Is there a way to make an even outline?
I tried just upscaling it and drawing it all black, then set the scale to 1 again and draw the image on top, but that doesn't work.
I tried just upscaling it and drawing it all black, then set the scale to 1 again and draw the image on top, but that doesn't work.