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Realtime UV tiling

Hello all! Im working on landscape material optimization and i have UV tiling based on camera disance. For now i have an alpha 0-1 that representes distance 0-10.000 units, and with that im lerping between two texture samples with landscape coordinates/1 and /100 pluged in UV. Its worked like it shoud be BUT i have 3 texutres (Diffuse/Height, Normals, AO/Rough/Met) so its 6 texutre samples and 3 lerps. What it trying to achive is something like on second image where im lerping UV and not texture samples before plug it to textures, so i need only 3 TS and 1 lerp for all samples. I have 5 layers on my landscape so it would be nice to achive that and cut my textures samples from 30 to 15! The problem is when im trying to lerp coord/1 to coord/100 my textures warping circular like on third image. I cant find anything about UV lerp before texture sample, is it not possible or there some problem with my math?

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Product Version: UE 4.18
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asked Nov 04 '17 at 03:39 PM in Rendering

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Freezerain
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answered Nov 12 '17 at 02:32 PM

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