Texture filtering

totebo

What does "filtering" mean in Gideros?

local filtering = false local texture = Texture.new("image.png", filtering )

Does it mean "not anti-aliased" or "displayed as-is"? I'm seeing varying results depending on scale mode, even when using @2x and @3x, when not using filtering.

hgy29

Technically 'filtering' in gideros means use LINEAR texture filtering when rendering, that is compute pixel value as a weighted mean value of nearest texels of the texture, as opposed to NEAREST mode (non filtered) which takes the value of the nearest texel.

keszegh

yes, you could say filtering=false means
"not anti-aliased" or "displayed as-is".

totebo

Thanks guys. I use scale mode "letterbox", and I haven't yet been able to avoid hairline cracks for my scale3 and scale9 background sprites on some devices. I have also tried "pixelPerfect" with the same result. The size and position of the sprites are indeed pixel perfect when I print them, but the hairline cracks are still visible.

The issue always happens, but less frequently when filtering is off.

Maybe a solution would be to use noScale and resize everything manually?

totebo

Another may be to use a tileable texture instead of stretching the sprite with setScale?

totebo

Update: A Pixel with a texture works great when using setWidth(). Problem solved.