What's that gap?

Can someone please tell me why this ssc-square has this ugly gap on the lower right edge? It's against all my knowledges of maths... 😕

This ssc renders 5 points:
top-left
top-right
bottom-right
bottom-left and then again
upper-left (to make it a closed square when drawing lines)

It seems as if the lower right point simply disappears when switching drawmode. You will see what i mean, if you add the lines:

FRAME:
t=t+1;
drawmode=t%2;

i hate it... 😠
i f***ing hate it!
My forefinger is too fast...

The point doesnt 'dissapear' otherwise there wouldn't be a line drawn to and from it would there o_o

As far as I know its an AVS bug, I can't remember if its a rounding error or not, but it probably is. Use your new coding skillz to make a pixel rounding fix.. I'd do it myself but I'm not in front of AVS

So after all its just a simple bug, a rounding error... What pleasant human behaviour. 🙂

Besides: to 'what' does AVS has to round? (resolution?)
And wich values are affected? (coordinates, pixels to be drawn?)

Thanks for you explanations!

If I remember correctly, AVS rounds up to the nearest pixel, not sure though. I didn't look at your preset, but it could be a problem with render mode, replace versus maxium/additive etc..

It seems as if the render mode doesn't have effect on this bug. Tried out nearly every combination but the gap was still there.

If avs, as you said, rounds to match the nearest pixel, then shouldn't there be a specific resolution or screensize in which the rounding error doesn't occur?
But to find that one out, surely is a thankless and time-wasting task for a dreary day. No task for me, hence. 😉

Its similar to this I think: