Environment-Mapping Techdemo is one of the packages released by Payk to assist 3D homebrew development.
Notes from developer:
In the 3d section of Libnds comes along with some 3D examples, one that called Env_mapping shows how to use hardware sphere-mapping with a static texture. It is not a real Environment mapping however, as what the DS does is to slowly distort an image and takes it as texture on the fly. Sgstair helped creating a function to distort an image, and this homebrew is a demo of it which allows making real-time reflection on NDS.
The ROM does not need a DLDI patch or any extern files. But still does not work on emulators (NO$CASH does screen capture the enitre screen instead of just the 3D part. And since the 3D part is rendered under a black background at the begin, it cannot be captured).
- Author's website - http://payk.drunkencoders.com