Yeah, I have the white noise too, it’s related to the normal maps in the landscape material.
, thanks for the info. I have a partial solution for the shadow acne, putting the plain superficies not aligned with the sun light, and using higher values for the shadow bias when the sun is high. And the Dx11 as option, where the problem is solved.
I found another problem using Dx11 time ago, the materials losses specularity. A solution is to activate the SSS option in the material properties (but not using it in the material tree). The material specularity returns, and the material also working in Dx9. Without performance loss.
I did only some tests, I have to use it in all the materials to see if is working with no problem.