In this video tutorial I describe Blend4Web SDK installation in detail and also show how to prepare and export a simple scene with lighting, shadows, materials and textures.

Урок по установке SDK а также экспорт простой сцены c освещением, тенями, материалами и текстурами в ёмком, десятиминутном видео!
Видео

Сибирская школа дизайна будет проводить курс 3D редактор Blender для начинающих в программе которого покажет как создать интерактивную презентацию с помощью Blend4Web.

Hello, welcome to our brand new forum!

I'm so glad to answer to this first question so I've even prepared a simple example.

You can try to do an animation by using the Node "TIME". As an output it generates a number of seconds since the scene load.

In the example:

Green Node (of type MULTIPLY) used to assign a speed.
First Red Node (ADD) creates a sliding emission effect (it's just a decoy, no light is being emit actually)
Second Red Node (MULTPLY) scales the effect
Then sine used to create a periodic effect
The blue one (MULTIPLY) is tune the final gradient
Than it's all joined together.

That's all. It you want to do more sophisticated glow effect you may use some plane or sphere with transparency.

chasing_lamps.html
chasing_lamps.blend