Baking Normal Map

Question

Good day to all

I had a small problem in baking normal maps and am seeking your help :D

am trying to bake this normal map for many days to use for my sword

I used illustrator to draw texture image to use it as the sculptor brush and everything

goes well but just the baking not :(.

I tried with blender and substance painter and i have same results.

i don't know whats wrong

here some screenshots :

1: The high poly mesh

2 : The baked normal map

3 : The normal map with the low poly mesh

so please Guys if you have any idea why that is happening :( or what i did wrong.

thank you CGC & CGC community

Answer 1 · 2018-01-26T22:56:08Z

replied January 26, 2018 10:56pm

Have you been through this course? https://cgcookie.com/course/intro-to-normal-map-modeling-for-games

You can also read this article: https://cgcookie.com/articles/bit-depth-how-compression-affects-normal-maps

Answer 2 · 2018-01-27T00:20:35Z

replied January 27, 2018 12:20am

thank you so much :D

i will check the both , i hope to find the salutation !!!

Answer 3 · 2018-01-28T01:11:10Z

Jonathan Lampel replied January 28, 2018 1:11am

Hey Benyamin, my first guess is that there's a modifier that's stretching the UV's. If you turn off all modifiers on the low poly object, does it still look stretched? It must be something to do with the mesh since the normal map itself looks alright.

Answer 4 · 2018-01-29T06:49:34Z

replied January 29, 2018 6:49am

Thank you so much :D, I found out what causing the problem.

I had made a subdivision after unwrapping so the marked vertices moved more to the center of the mesh.