Currently I’m working on material customization blueprint and I have a problem with correct exporting of normal map into an external file.
What I am doing:
- http://c2n.me/3Mm9B7G - there are 2 texture parameters in master material: 1 is for pre-baked normal map and 2 is for detailed normal map
- http://c2n.me/3Mm9Fju - here is the section where I set flag *bake_normals *and move information into an *Emission *input.
- http://c2n.me/3Mm9MVQ - then I draw material to *render target *variable and then to export render target on hard drive as hdr image.
The main problem is visible here: http://c2n.me/3MmaeLR
As you see, complete texture is far from original; I understand that I lost some data when I set up compression for Normal Map. Maybe someone knows, is there any correct way of exporting Normal Map out of Unreal Engine? Help, please, because I’ve already broke my brain.