No? The quiz is clearly some kind of edge detection filter. The light blue "grid" is the background to let you know there are transparent pixels in the expected output. It looks like something designed with intention to me. They just forgot to put the text description.
No? The quiz is clearly some kind of edge detection filter. The light blue "grid" is the background to let you know there are transparent pixels in the expected output. It looks like something designed with intention to me. They just forgot to put the text description.
Click on where it says DIFF; its not edge detection
More likely to be some kind of color space thresholding
Never mind, you were right that it is edge detection (a terrible one though lol):
https://shaderacademy.com/shaders/glsl/ranked_1/fragmentExpe...
But I still stand by the ai-gen'd aspect