Hi. I’m trying to make some drop water lens effect with a post-proc material. My problem is, inside the volume, it works ok, but when camera is in “blend radius” range, the effect goes crazy. It seem to multiply values itself. I also didn’t get any transition or blend, but only with the material. Same problem with the array parameter.
Thank you very much in avance for your help.
If you use PP material instance and expose the parameters and changed them in your material instance, UE4 blends the default value assigned in the parent material into the actual value you set in your PP material instance. In your case, the parameter are for UVs, so the result would be unpredictable.
It’s a bug I believe, but easy to avoid from content side, just use Parent material directly in your PP volume
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