broken specular maps in ioquake3

[AndehX]

Just updated to the latest ioquake3 (I was using a build from 2015) and all my specular maps are broken. See images:

Specular maps disabled:


Specular maps enabled:


Anyone know whats causing this? It looks as if specular maps are simply being overlayed on top of the map textures, rather than being applied properly...

[AndehX]

So I did a test using Spearmint (modified version of ioquake3) since I can't find any previous versions of ioquake3, and noticed that version 0.3 was when this "change" was introduced, although it doesn't seem to be documented at all.

This is Spearmint v0.2:


This is Spearmint v0.3:

[obsidian]

Try reinstalling IOQ3 to see if there is something wrong with your game files.

Otherwise if you’re sure it’s a bug, here is their issue tracker:
https://github.com/ioquake/ioq3/issues