The Bathroom design project is made and presented with the simplest techniques so that you can use it. This bag has no protection. You can reuse scenes, render settings, lights, materials, but most importantly you can learn from the file, walk through the project, see how the light is created and how it works, how the material is generated, the role each texture plays. . and the values that fill each option.
Corona 8 version
Materials CoronaLegacyMtl In versions of CoronaRender 8 and below CoronaLegacyMtl=CoronaMtlpoly:2258370verts:1860688
CoronaLegacyMtl requires a version of Corona Renderer at least 1.5, since the cards are designed to use PBR
OBJ (OBJ, filesize: 37.4 MB), FBX (Autodesk FBX, filesize: 232 MB), MAX (Autodesk 3ds Max, filesize: 104 MB), TEXTURES (Textures, filesize: 151 MB), RPS (3ds Max Render Preset Settings, filesize: 151 MB), DWG (AutoCAD, filesize: 100 MB)