But playing around with it, I've noticed something strange in other way. It seems that the shading on any entity is calculed only on the keyframes. When the entity have a high albedo value, the metal flag set, and the sun tilt is low you can notice it better.

I mean, the shading is done smoothly if you are rotating the entity in the world, but when is the animation interpolation that is rotating normals, the shading only refreshes on keyframes.

1 - Is it a T&L issue on A5, or did I miss something?

Also, has anyone developed or planned a script to change the sun_angle according to light sources or dummies entities to fake a better reflection and entity shading? - Hum, thinking again it would be odd to see not only the moving entities have their shading rotated, but also the static ones just because the player walked around a light. - Hum, unless all entities other than the player where flat textured, this way even the "dynamic" shadow could be faked more realistic.

2 - Are there plans to improve the T&L on Acknex?