Normal map issue!

Development Rendering
1

I simply can’t use any imported normal map!:confused:
this is when I apply a normal map to something :rolleyes:

nor.jpg
nor.jpg1363×853 74.7 KB

black area is downside of the skybox, the reflection on the wall is clearly rotated
and without a normal map
8df3878efe7ef810b54cf1470dbdba5823273a4c.jpeg
just can’t use any normal map imported by myself
but here is one of them, try it
brick_mixed_size_floor_n.tga (769 KB)
God, please someone help me!:frowning:
if anyone knows what causes this please tell me
HELP ME:(

2

check if the texture compression is set to “normalmap”

3

I’m sure it is
by the way I tried increase blue channel value in material by “add”, about 13 will rotate the reflection back to the way it is supposed to be, but that will also flaten the normal map
any idea about that?