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Drawing a single line using floating point position

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@rjlwest wrote:

I'm drawing lots of single vertical lines using floating points as it's position. when it moves it will flash on and off as it goes in between integer values. so 1.f is ok, 2.f is ok, but 1.5f and it goes dull. I could always just use the integer values but then it goes jerky. I've tried making them 2 pixel wide lines but it's still not right, I feel like I should be able to move a single pixel wide vertical lines without it doing this.

is there some kind of drawing mode i can switch on? I'm drawing this stuff into an fbo if that helps?

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