How to add shininess to car textures in Gimp?

[sprotz]

In the process of creating car textures on the side view, front view and rear view, how do I make shiny metallic textures on the car body with reflection? Also is there a way to auto add shadows and shading depending on light direction as if it were a 3d render?

[Blighty]

Adding shine and shadows is often more of an art than a technical skill. Many different methods, method will depend on the actual image.

Here is an example of shine (last item - Gimp shiny button):
http://www.littlewebhut.com/gimp/

Here is some info on shadows:
https://www.gimp-forum.net/Thread-Perspe...hadow-help

Will help to post an example image.

[sprotz]

Oh, thanks. I'm a good programmer but not a very good artist, my weakest point in game development.

[Espermaschine]

This makes me think of the 'Plastic or Glass' script, which adds three layers of shine to an object derived from a bumpmap.

I think Graechan wrote it based on ChrisF's candy effect.

Might be worth a try.