Specular and normal map artefacts problem

Questions & Answers
1

Hi, I’ve been searching for days on internet but i can’t find any solution for my problem. So here it is:
First eveything seems ok in my computer, but all the problems comes when i built and run on my samsung tab2.
I’m trying to archive a “leather” texture and of course to have the best results i want to use specular and normal bump. I tried all shaders with bumped specular (currently using the self-illumination bumped specular), but i have the same problem with all the shaders. As long as i only use normal map or specular everything seems fine, the problem seems to be when i use both [but i need to use both…]
So here it is, in distance, i have some squares artefacts as shown in the image:
34044-artefact_loin.png

And when i’m closer to the couch i’m getting some white flickering like this:
34045-artefact_proche.png

I’m a newbie, but since i tried everything i could think about [increase AA, remove mipmaps, etc] but nothing worked.
Also right now in the scene i have a directionnal light (also tried point light but didn’t get any better…).

I tried to write all the specification in my post but if the is missing any elements don’t hesitate to ask! I’m kind of desesperate right now…

Thanks!

2

with Specular the flashing is the shininess there is a little slider that you can use to turn it down, or darken the normal map texture,both work.

34049-help.png
34049-help.png920×174 23.2 KB

3

try reducing the intensity of the normal map , that helped in my case , you will get less of the artifacts

4

OK, i found the solution to this problem. For whichever reason, the normals returned by UnpackNormal will return normalized normals on Standalone, but not normalized normals on Mobile. So normalizing the normals in your shader right after unpacking them will do the trick.