It does seem that I'm missing some textures in the files. I searched all the file downloads from this course, there is no "VeinsTexture_512x512" file anywhere
Ewa says that the only veins like texture she used to texture the binoculars are the textures in H07_Lesson29-30-31-TexturePaintingALowPolyBinoculars folder, in "Wood brushes.zip" file"
