RAW Encoder for Unity Terrain Map?

Unity Engine
1

Hi,

I’m writing an external C/C++ program which currently exports 16-bit greyscale PNG files based on data that I have within the program using lodepng. I’d like to be able to visualize these in Unity as terrain maps without jumping through a series of hoops (or repeatedly going into Photoshop/GIMP) to get my 16-bit greyscale data into the RAW image file format required for Unity terrain maps. Independent research has told me that the RAW image format is more of a shorthand for a variety of camera outputs, but if so why is Unity using them? Is there a specification for whatever variety Unity is using, so that I can look to manually encode them? Or maybe a library? This may include headers / endianness of the required format, etc…

Any details are useful at this point, whether there is a simpler path or if this is simply impossible. (I’d prefer not to port my code to C# right now, but maybe there is a simpler vertex-map type thing I could use?)

Thanks for your time.

Best,
Sean

2

Those RAW files just store 16-bit (UInt16, 2 byte stride) pre-formatted height data. They are not encoded and have no header. You should be able to just write directly into them in (I think, best check) big-endian order.

3

Thanks!