Model Alpha Transparency

Introduction

The Mystery Box Glow is a model using Alpha Transparency

Nazi Zombies: Portable has it’s own unique method of enabling alpha blending for models, equivalent to the GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA OpenGL blend mode. This process is supported by all platforms and the set up is identical for all of them.

Texture Format

.TGA formated textures are the only ones supported for this method, and they can safely be exported as 32 bit RGBA.

Naming Convention

The texture follows the same naming convention as standard Quake external textures. That being model/path/your_model.mdl_<skin_index>.tga. However, the model name itself has a unique identifier. The last character of the name (before the file extension) must be $. What this does internally is redirect the model renderer to a different pipeline that sets the given blend modes on non-FTE, and creates a Quake III shader inside of FTE in the scripts/ path on first launch.