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Question by
pmerilainen · Jul 10, 2019 at 01:01 PM ·
iosshaders
newer ios devices and "classic transparent object trick" produces artefacts
I am having problems with the classic transparency trick; namely drawing object in 2 passes, no colors, only depth write and then color with only depth test. Problem is that with some newer ios devices this trick produces artifacts; objects drawn with it flicker. I presume the problem is at the hardware level because of the tiling system found in PoverVR chip. So the gfx chip incorrecly guesses some of the color areas to be occluded by depth. It looks like whole triangles are being discarded. Have anyone found a way to circumvent this issue? (With offsets etc?)
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