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Re-creating bathroom in Unity

Michal Franczak 2017-11-15 13:41 tutorial  > Unity  > modeling

We are porting 3ds Max scene into game engine!

This nice bathroom is a simple test of moving 3ds Max scene to Unity. In fact it is just more than "moving" - most of the meshes are taken from original scene, but I re-unwrapped them for Unity and created materials from scratch in Substance Painter. This was just a test of Unity engine for arch-viz purposes. Result is pretty good, but, of course, each engine has got its limitations and Unity is no exception, we will talk about it later.

 

First, a little disclaimer - it's not totally finished scene, it has some lacks (bottle materials are just placeholders, we also could make better mirror material, etc.), but it was just a proof of concept of what is possible and it was my learning base of this engine.

 

original

This is an original scene from Archinteriors vol. 39. It was modeled in 3ds Max, rendered with V-Ray. Nice GI, good balance, it's a clean architectural visualization, ready to ship to client. Of course, to get this render quality we need to spend some time (more than hour) on the rendering and each separate shot or change requires re-rendering. That was the reason we are watching more and more arch-viz renders made in realtime engines, especially Unreal Engine. But is Unity capable to deliver decent quality? I exported the scene from 3ds Max to single obj files and imported it to Blender (my 3d software of choice), then I unwrapped it and exported it via Capsule plugin to Unity and Substance Painter, because I wanted to create game engine-friendly PBR materials.

 

unity_scene

This scene is a screenshot from Unity, a bit greenish result, not bad for the first interior in new engine. It's a simple shot, without external post-production, that could be better tweaked using Unity Post-Processing Stack, Beautify plugin for Unity or Photoshop.

 

slice2_7

Bathtube in blender and UV mapping on the right

 

slice3_7

Round sinks and their UVs.

 

slice5_7

All objs imported to Blender

 

slice4_7

Interior (ceiling is hidden). I created new floor mesh with Archipack addon for Blender.

 

slice25_3

This is scene in Unity editor. On the left we can see the list of all assets used in the scene. On the bottom we have project brower that we use to import all models, textures, materials, plugins, etc. On the right we have properties of currently selected object. In this case we see camera settings.

 

ss_01

The good thing in Unity is built-in Asset Store that lets you manage all bought assets. Unlike Unreal Engine, adding new plugins to project does not require restarting it.

 

ss_00

To have good anti-aliasing I used MadGoat SSAA - it's supersampling anti-aliasing plugin, smoothing those jagged edges in nice way.

 

ss_02

The other plugin that I used was Render Monster which allows to capture screenshots / frames in a fast and high quality way.

 

slice13_5

If you want to record camera movement, it's very simple - create new empty object in Hierarchy window, open Timeline panel and and press "Create" button to create new timeline asset.

 

slice12_5

New, empty timeline. Now you can select your camera and drag and drop it to Animation track.

 

slice11_5

Press" record" button on a track and select your camera again - now each position / rotation of a camera will be recorded to the frame that is currently selected as a keyframe.

 

slice10_5

After recording at least two positions of a camera on two different frames you can right-click on newly created animation and select "Convert to clip track".

 

slice24_4

The scene overview in Unity Editor.

 

slice23_4

Door mesh with two materials for door and handle. I haven't used here Substances directly in engine (which is now possible using Substance Source plugin for Unity and Unreal), I imported textures that were prepared in Substance Painter.

 

slice21_4

Mirror is a simple reflective material. In this case it is not a perfect solution, bhecause we cans ee artifacts (two hanging lamp reflections in the back). These artifacts come from ScreenSpace reflections post-process. There is a way to create it in better way, though.

 

slice20_4

Main directional light settings - it's our main light source in the scene. I chosed "baked" option to get nice GI from engine.

 

lighting

Baked lighting settings on the right. I baked lightmaps with Enlighten engine with "Baked Indirect" option. It gives nice results, it's currently faster than Progressive Lightmapper in interiors and gives nicer results. Unity is more sensitive to building mesh than Unreal - you can get light leaks quite often and there is a lot of work with optimizing meshes and UVs until everything is correct.

 

slice19_5

Main camera settings. Camera is using "deffered" rendering. we also place post-processing effects in Camera inspector window. You can see that we are using third-party payware plugin "Beautify" here.

 

slice17_5

Some post-processing effects are achieved via "Post-processing" stack that was introduced this year. It is great free plugin with many usable post-processing fx. In this scene its main purpose is to enable screenspace reflections.

 

slice16_5

Color grading settings

 

slice15_5

Some final touches: vignette, grain, etc.

 

slice14_5

Beautify settings - this plugin is nice when you want to sharpen your scene, add some nice bloom and flares and grade it.

Thanks for reading! :)

Author: Michal Franczak Editor: Michał Franczak
Tags: archinteriors bathroom unity
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Sketchrender 19:07:51  |  15-11-2017
another substance painter article.......................... they should just buy evermotion.............
dr_After 09:17:20  |  16-11-2017
@Sketchrender Not even single screenshot from SP in this article, should Unity buy us as well? :P
Sketchrender 14:24:38  |  20-11-2017
dr_After.... the SP comment was left on a SP Article not here, the comments section is not functioning properly.
Artemka 21:04:03  |  22-11-2017
how much time did you spent for baking ?
zeljans 00:20:23  |  02-12-2017
Nice article. I personally use Unity for creating architectural visualization in VR I would be nice for Evermotion to create some Unity interior set project. ps. if needed I could help :)
dr_After 12:49:43  |  12-12-2017
@Artemka - not much, it was less than 30 minutes I guess.
dr_After 12:50:45  |  12-12-2017
@zeljans: we are thinking about it, although it's not easy to make great scene in Unity without using third-party plugins (which we cannot include in final product). But we are considering making Unity scenes :)
dr_After 11:20:14  |  19-12-2017
@zeljans good work! :)