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Opacity Mask Shadow with Pixel Depth Problem


I'm trying to achieve the same result of Uncharted 4 with the foliage so that the camera doesn't clip with it. I did a material with a pixel depth node (even try the perInstanceFadeAmount with a different problem). The result I want is there as the foliage is dithering as the camera get close but the problem is there's no shadow. As soon as I remove the pixel depth part the shadow is there? Is there a problem with using pixel depth and the shadow pass of the directional light?

the third image is the material function with the pixel depth and I multiply that to the opacity mask of the foliage

alt text alt text alt text

Any idea on the problem?


Product Version: UE 4.10
shadownoshadow.jpg (91.4 kB)
pixeldepth.jpg (73.9 kB)
dithering.jpg (69.3 kB)
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asked May 25 '16 at 03:21 PM in Rendering

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