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vurtun / nuklear

A single-header ANSI C gui library
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nk_fill_rect has bleeding edges #424

Open LennertSchneider opened 7 years ago

LennertSchneider commented 7 years ago

Hi,

doing e.g. nk_fill_rect(nk_window_get_canvas(ctx), nk_rect(0,20,2,580), 0.0f, nk_rgb(255,255,255)); will not draw the expected rect on exact pixels using white color without transparency, but instead draws "between the pixels" resulting in half-transparency of the drawn rect. i think the transformation to screen coords is off by 0.5 or something like that.

Cheers.

vurtun commented 7 years ago

Do you use anti-aliasing? If so please try turning it off for shapes in nk_convert_config:

 config.shape_AA = NK_ANTI_ALIASING_OFF;
LennertSchneider commented 7 years ago

yes, it was turned on. and i'd like to have it turned on, e.g. for circles. however i tried turning it off which gets rid of the non-opaque pixels, but then the rect is only 1px in height, instead of 2. so something is still off there... :/