Fabien Sanglard's non-blog

  

Java OBJ loader, LWJGL rendition.

From 2D to 3D, or how to make it 10 times harder.

The actual stuff

	Try it !
	Download Eclipse project (6.2Mb).
	Drop me a line.

History

For the next game in C++, I wrote an OBJ Loader. I decided to port it to JAVA and used my favorite Java OpenGL binding for rendition: LWJGL.

Support

This Java OBJ Loader support:

• Groups
• Vertex, Normal, Texture coordinate
• MTL (material) references.
• Texture Loading (including Alpha for PNG)
• LWJGL Rendition with DisplayList

This Java OBJ Loader DOES NOT support:

• Relative vertex references.
• Anything other than GL_TRIANGLE and GL_QUAD polygons

How-To

I extracted the Ikaruga Models to test this loader. If anybody wonder how to do it, this is what you need:

• An Ikaruga CD (DreamCast prefered)
• A PVR viewer (PVR is the texture format in the dreamcast) ( Use Pvr2png for batch conversion and PVRViewer for special files). A bit or reading about the Sega PVT GBIX format: here
• A PVM decompressor (PVR files are stored inside PVM archives). pvmupk will do the job.
• A NJ (Sega/DreamCast format object model format, AKA Ninja) reader. I used Exmldnet, but their version is bugged (texture names are truncated among other things). As they were kind enough to publish the source code, I fixed it. Fix was sent but there is no update, so in the meantime you can download the latest version from here.
• A lot of enthousiasm ;) !

Screenshots

In case you wonder, the kanji on the right in each screenshot mean "Never give up"...

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