I am having a small issue trying to get an experimental ground polygon to blend into the terrain at the edges. I have a gradient alpha channel near the grass edge, however in P3Dv2.5, the sim displays 2 sharp levels of transparency. 50% then 100%. No smooth blending. (see first image). However all is right in MCX as it should be (see 2nd image). I am aware there was a version of P3D which had blending issues with photoscenery but I believe this was later resolved. I have not yet tested in v3 as I want to be sure that my blending works in all versions of P3D. Any ideas as to what may be the issue?