Thanks for your reply, ClockworkOcean.
I know that overdraw is a problem. But the shader complexity looks like there are ONLY transparent sections in the material which are all overlapping eachother.
Let me explain it with a screenshot of an older Engine version:
On the left there is a masked material of tree billboards. Transparent parts of the material cause overdraw which is normal. But my gras complexity (from the first pic) looks like the part on the right, which is a material set to “translucent”.
My gras shouldn’t look like that since it is of the type “masked” not “translucent”. Do you know what I mean?
The problem is that my gras has also non-transparent sections which shouldn’t cause overdraw.