[Released] Interior Mapping

This shader uses cubemaps to create the illusion of windowed offices or interior spaces, without the need for interior mesh information. This pack is optimized for Windows/OSX builds, but also works on Android and iOS with GL2.0.

ASSETSTORE LINK

EDIT: Updated to v1.1 with support to 2 cubemaps per building for variation.

 

Nice work.

 

That's extra cute !

 

Purchased! Thanks.
But my question still stands (I'm no shader programmer): Could you add more cubemaps to the shader to pick a random one, let's say a maximum of 3 maybe?

 

Hey thanks for purchase

If you are not planning to use it on mobile, it is possible.

I may put it there in a seperate shader in the next update to be used in heavy-duty platforms rather than mobile gadgets.

 

Okay, added support for 2 cubemaps in a seperate shader and submitted to the store now.
This will still work on mobile and gives enough variation with a seperate random function.

EDIT: If you still insist on 3 cubemaps, it wont work on mobile anymore.

 

Wow, thank you. No, three maps was just a random number pulled out of thin air.
Thank you very much!

 

Wow, that is a really cool effect!

 

The update is confirmed now. You can download the v1.1 from the store.

 

This is really cool! The repetition is still quite obvious though. Is there a limit to how many cubemaps a pc/mac-only version could have, if you were to include such a aversion?

 

If pc/mac and if sm3.0 is not a problem, than it can be hundreds of them but obviously it would be very unnecessary and really beats the purpose of this shader.

While planning this shader, i was planning to put detailed base floor and put the cube on top of the base floor with the interiormap to give it extra details.

That is also the purpose of the original paper which was shown in CGI 2008 Istanbul/Turkey
Although the technique i use is completely different than the original paper here, the purpose remains same.

 

Aubergine, you've done things with shaders that I never thought possible. I am honestly anxious for the day I can get around to using some of the cool stuff you've produced.

 

Hey, thanks for the kind words. I hope my accountant will appreciate the same way at the end of the month

 

bump

 

Sorry to inform you people, the introduction period is over and the price is fixed to 25$

 

Another bump.

 

This effect was awesome in Halo 3: ODST. Great job, man!

 

@xalener:
Didnt play the game can you show an example? Im really interested to see the effect by real games in use

 

I dont think this was used in Halo 3, although im not sure, i never played it.

Anyhow, this effect is a must for city environments if you want to give proper depth feeling to your low poly buildings. And for night time scenes, turn some lights on and off in your building and add a glow/bloom image effect for the camera and watch the beautiful scene.

 

It wasn't in Halo 3. It was in Halo 3: ODST. It was kinda an expansion pack with minoir engine updates. The game is based in a city (New Mombasa) and it made extensive use of this effect. It even works ok on curved windows in the game.

here's some pics:

http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=102104436

http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=102104490

There are a few issues with it however:
http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=102104521

I'm not sure if it's the method itself that results in issues like the one pictured above, or their specific implementation, but it's not nearly bad enough to be a distraction. Especially in a shooter.

 

Hello people, the price for this pack is reduced to 15$ and this pack is now also a part of my shaders pack.

 

This pack is compatible with Unity 4.

 

On you website you are saying:

Is there any way to deal with that?

I have some applications in mind that need all 4sides of an building with this effect shader.

 

It is possible, but then you cant use random lighting of individual apartment flats.
Cant you just hide one side? Or make it static view?

By hiding, i mean make 1 building with 4 different cubes with all static faces looking at each other hidden. Thus you get all 4 sides of 1 huge building.

 

Maybe its possible to just replace the one side that not behaving to replace it with another mesh rendering with the same shader.
Or make a second pass (drawcall) to render the 4. side. (im no shader expert)

 

Yes, something like that as i mentioned, you can mirror 3 more cubes and put them side by side to cover all 4 static edges to be in the center so they wont be visible but the 4 blocks will look like 1 block anyways.

 

Hey Aubergine,

Would it be possible to have a version of the shader that will take a unity default plane and make it a single window. I want to be able to add just one window at a specific spot in my scene. I tried editing the shader myself but only got mangled results. Thanks!

 

How do you mean, i dont quite understand. Do you want 1 specific window in a specific place on the surface of a plane object? Or do you want a single window on the whole surface of a plane object?

 

A single window on the whole surface of a plane. In my attached image I would like to make each of those planes a single window.

 

Well, the point of this was to make them work on cubes rather than individual planes.
If you want it to work on individual plane objects(they must be vertical not horizontal to floor) change the below lines in one of the shaders:

//Everything in World Space
float3 tan0 = mul(float3x3(_Object2World), float3(v.tangent.x, 0, -v.tangent.z));
float3 tan1 = mul(float3x3(_Object2World), float3(-v.tangent.z, 0, v.tangent.x));

to;

And if you want only 1 window, try to reduce the "Amount of Windows" variable down to 0.1

Again, due to purposes of this shader, everything is calculated in World space including uvs, so you may have to offset the objects in World coordinates to catch the right settings.

If you need any help in editing the shader, let me know and i will send you the whole new shader. But i really dont want to update the package for this now.

EDIT: Also i should mention that unity provided plane object has too many vertices and not good for the purpose of this shader. You should make your own plane object with 4 vertices alone and dont forget to calculate tangents when importing it.

 

Long time no update here. So, i decided to add some more variations.
I will include a surface shader variation so that your buildings will be able to cast/recieve shadows and get effected by lights.

Although this is overkill as the shaders already provide enough lighting, some people might want to use it.

I will submit new update sometime around next week.

 

New update is live in the store, folder structure and shader names changed.
So, delete the old package before updating to new one.

EDIT: The new update is accepted but i noticed demo files are missing and broken. I resubmitted again.
Sorry for the inconvenience.

 

Where is the web demo? The link in first page doesn't work.

 

Sorry i have removed the webdemos. My website recently crashed and im trying to fix it.

Meanwhile, there is a new update again. This is a minor update, to fix some demo files.

 

Can you add specular reflective like this

http://www.inear.se/2011/02/interior-mapping-in-unity3d/

 

You mean for the windows? Or the whole building?

If you mean for the windows, its unnecessary to add a secondary cubemap.
Just design your interior cubemaps with the reflection added on top with some photoshop operation.

If you dont like the above idea and must really use a seperate cubemap, let me know which one of the shaders you use and ill add it for you. But this is not a cost effective way.

 

For windows, or the glossy part I specify in the texture. I want to reflect the sky so can I design the interior cubemaps with reflection?

 

The reflection will be visible only from a distance while looking at the whole building. So, you blend a sky cube face texture and interior face texture through photoshop (this will need some trial and error) into 1 texture and make a cubemap out of these.
Then when you look at the building from a distance, the sky image will be visible and when you come closer, the interior will be visible.

 

ok I will try. Can you also do one that has no tiling? I want to do one room without tiling like this (See video at end)

http://simonschreibt.de/gat/assassins-creed-3-windows/#update1

I applied your fix above for a plane, but the tiling still screws it

 

Sorry we have no access to youtube at the moment, government prohibited access.
Can you post an image?

 

Each room is their own map.

PS. Not sure if the image is showing up, it's not showing on mine but the forum has attached it

 

Image is visible.
I understand you want 1 room in 1 floor and same room should be visible through several windows right?
All you have to do is set the tiling to 1 and use a window texture which is tiled in photoshop but not in shader. Instead of 1 window, use 2-3 and you will get the same effect.
It will look tiled with the help of tiled window texture but it will be 1 room in every floor indeed.

Or have i understood wrong?

 

Here is one very nice tutorial on creating buildings in 3d Max and a city block in general.
This works wonders together with my shader. (Building generation tutorials start from 19th Lesson.)

Even its 3dMax specific, most techniques apply to other 3d packages as well.

 

This shader is truly great!. I just want to start with that.

I am having some issues I'd like to ask for your feedback on if you don't mind aubergine.

1.) Transferring the mesh from a 3d package I seem to get mixed results. Sometimes the textures (interior mapping) are stretched, sometimes squished. I can't seem to figure out a pattern. I try keeping it consistent, hence is why I am trying to figure out a pattern so I can adjust it, maybe you have a quick solution?

2.) Combining yields mixed results. Lets say I have a building with multiple windows facing several directions, not just a box building. Floors have different sizes, and angles. I am able to place windows that work with the shader, but once I combine them, they stretch. For performance purposes I need these windows to combine into one mesh preferably.

3.) Like one of the users posted previously, I think a reflective channel would be nice to have for higher end games, like pc, and consoles (ps4, xbone) . I tried blending in a sky texture into the cubemaps and it just doesnt look as good as glass should. My solution for now is I put a floating piece of geo over my windows and assigned a transparent reflective shader to it. It looks great but I think if it could be integrated within the interior mapping shader it would be even more efficient.

​

Thank you for any help you may be able to provide.

 

1- That depends on your model, assuming you are just using cube like shapes for the parts of the building where you will apply the interior mapping, you just should uv map those parts as cube mapped (in 3d max or whatever your software is)
Although ive never seen such an issue, can you send me a small example model to test with?

2- You can use cylindrical objects as well it doesnt have to be a cube exactly, but that will obviously cause some deformation at some points. The best i can advice is to use planar mapping on each face that a window will be seen.
And again i never experienced such issues, can you post some pictures or stuff so i can understand what you mean exactly.

3- Okay, i will add cubemap reflections for the whole building face where windows are, in the next update as a seperate shader.

 

Well, i did prepare a variation with sky reflections on the windows(it is not per room, it is per side of the building as its how it should be). But i dont want to update the package in the assetstore just for this.
The addition of sky reflections surely add some extra beauty, but it does sort of break the purpose of varied room lightings as it is supposed to be mostly used in night situations. As seen in the picture, i over did the light rooms lighting to make it more obvious in the picture.
But anyways here it is.
Whoever wants it, reach me on my email with the invoice number, and i will send you the custom shader.

 

Here is a short video, applied the shader to Bumstrums deserted skyscrappers pack from the assetstore.

 

Highly interested in the sky-reflection-variant!
Is it compatible with TimeOfDay-plugin?
A shaderforge version would be awesome.

Webplayer example please!

 

I dont know how TimeOfDay plugin works. The reflection is just another cubemap there.
But that is not a good cubemap to go, as seen in the picture, the top windows reflect the clouds in the skybox but the bottom windows are over tinted because the bottom of the skybox is foggy white.
It is better to render custom cubemaps with the sky and the buildings, so the cubemap shows all the sky, the buildings and the ground.

 

I see.
Anyway - Webplayer?