sb-nes/ka3d_tools

Building tools for converting asset files from Rovio's decrepit KA3D game engine. JK ;) Its just for converting Assets from the N-Gage 2.0 game 'Bounce Boing Voyage'.

KA3D Tools

This app is a tool to convert KA3D/Fusion Engine assets back to their general format:

1. .ntx -> Img/Tex -> .png/.jpg/.tiff
2. .hgr -> Assets/Objects

[NOTE: not all .hgr files (KA3D engine's gamedata, leveldata, prefabs, etc.) can be directly converted into existing files]

Downloads

Windows

Information

NTX

KA3D stores images and textures as binary NTX files (written using buffer-writer), thus can be read using any buffer-reader. It is made up of three parts: Header, Colour Palette, and Pixel Data.

[All the data in header is of size 'uint16_t']

Header:

1. Version (Engine or Converter)
2. [Width, Height]
3. Format (KA3D Image Data Format | Not the actual image format) - How to efficiently store 'data'
4. Palette Size - for reading the colour palette
5. Flags(unused)
6. User Flags (unused)

Colour Palette: Next in buffer of size 'Palette Size' from the header; It is an array of all the colours that may be present in an image. Size limited to 256 unique colours.

Pixel Data: Remaining data in the buffer; Each Pixel contains the index for its colour to lookup in the colour palette.

HGR

???

changelog: a little error i made in v0.1

What it looked like:                         What it should look like:

This intepolating artifact occurred simply because of the swap between height and width.