local fade_img = gfx.image.new(200, 200, gfx.kColorBlack)
fade_img:drawFaded(0, 0, 0.1, gfx.image.kDitherTypeBayer8x8)
local fade_sprite = gfx.sprite.new(fade_img)
fade_sprite:add()
fade_sprite:moveTo(100,100)
but while i call
gfx.sprite.update()
in playdate.update() loop , i got a all black square , why is that happen ? all i need is keep the "fade sprite" unchanged .
yes , the backgorund is white , without the line : gfx.sprite.update() call in the playdate.update() , i can see the partially transparent square . but if i put this line in , the suare is completely black . but dont know why .