Any tutorials out there for glowing shaders?

[Matt-Liell]

I want to make parts of my model light up or "glow" if you will. Now I know this is done with shaders but I'm not quite clear on how.

[Fracman]

Basically you have to draw two textures,

one with the normal skin of the model,

and the glow texture. For that you start with a black background and add parts that should glow there (use also some blur).

Then you have to create (or copy) a shader

that uses the blend function "add" (GL_ONE GL_ONE) on the glow texture.

You may look at the models.shader for some examples,

but nearly every shader in JO has some glowing

[Bell]

http://www.planetquake.com/polycount/cottages/qbranch/tutorials/shaders-2.shtml

[Matt-Liell]

Thanks guys.