# cubemap-creator

Python script to create sky image maps in rectangular format from such in equirectangular format, Blender setup to render equirectangular image maps.  

From:  

![hotel_room.png](hotel_room.png)

To:  

![hotel_room_cubemap.png](hotel_cubemap/hotel_room_cubemap.png)  

And for use in three.js, each segment of the cube comes as a seperate file as well (nx, ny, nz, px, py, pz):  

nx  
![nx](hotel_cubemap/nx.jpg)  

ny  
![nx](hotel_cubemap/ny.jpg)    

etc.  

## Usage:  
#### Convert .hdr to equirectangular .png with Blender
cubemap-rendersetup.blend has removed or decreased to the fullest all kinds of unnecessary render settings if rendering an HDRI only (did you know 1 sample is enough for this job?). The camera is set to the centerpoint, its perspective 360° equirectangularly set up.  
Why would I do this?  
I tried converting an HDRI (.hdr) to a .png or .jpg by hand - the colors got messed up. Rerendering with this setup did the trick.

#### Convert equirectangular image to cubemap with Python
```
python equi_to_cube.py equimap.png
```

The presented HDRIs are from HDRI-Haven,  
the scripts are made by people from Stackoverflow.  
I did nothing but using glue here!