Eraser?

I was wondering why there isn’t an eraser tool. One would be exceptionally useful, especially in the dynamic lighting settings so I wouldn’t have to risk erasing whole structures when opening doors and I could also remove walls if certain in game structures that were originally obstructing view came down without erasing the entire dungeon.

That's be a great idea for a Idea and Suggestion forum thread.

There is no eraser because Roll20 uses vector graphics. The square you draw is actually just four points, the four corners and the info of how they're connected to each other. Roll20 then draws the lines between the points dynamically as you zoom in or out instead of each pixel of the line being drawn individually. This creates sharper lines when you zoom in due to the way vector graphics work.

HoneyBadger said: There is no eraser because Roll20 uses vector graphics. The square you draw is actually just four points, the four corners and the info of how they're connected to each other. Roll20 then draws the lines between the points dynamically as you zoom in or out instead of each pixel of the line being drawn individually. This creates sharper lines when you zoom in due to the way vector graphics work. While true, a vector eraser isn't impossible , it just involves a lot more math.

Steve K. said: That's be a great idea for a Idea and Suggestion forum thread. There are Suggestions on the current Suggestions board matching this topic. Here is one, <a href="https://app.roll20.net/forum/post/1258025/reveal-t" rel="nofollow">https://app.roll20.net/forum/post/1258025/reveal-t</a>... and now the new one from Logan, <a href="https://app.roll20.net/forum/post/1718542/eraser#p" rel="nofollow">https://app.roll20.net/forum/post/1718542/eraser#p</a>... Logan you can subtract your +1 from your thread if you decide to recover your vote and add your comments and +1 onto the other thread.

Brian said: While true, a vector eraser isn't impossible , it just involves a lot more math. A rough poly eraser would be good enough. Think of it as edge cutting.