Reply to post of user Pavel Kotov
We are working hard on this material library, spending decent amount of time to make it look really good, that's why it is only in PRO version.

But hopefully I can help you with this: here is an example of the simple water, also look here to find documentation about Special Water option. You also can try to combine two different meshes/materials!

That's all that I can say

Thank You, Pavel.
Your reasons for PRO version are valid. I will use the "simple water" solution. Maybe in the future I value the PRO purchase, but at this early learning phase is not profitable for me, at least until I gain a lot of familiarity with much of the Blend4Web "tools".

Please, I have some questions to ask yourself:

1) The option to activate the volumetric waves are present in the Community Edition?

2) The online documentation mentions Rich Material Library of PRO or are present only if you have the Pro version?

Thanks in advance for your reply!

Hi Alexander!
Is there a chance that only the material water with caustics should be granted soon also for Blend4Web Community Edition? I really need of that special effect for my under construction project!

Should be in place. May be you logged out? (it is only for registered users)

Hi Yuri! :)

You're right. I was not logged in…

I've installed on Blender 2.78RC2… But what happened to the 16.09-Pre in the download page? I don't see the link … it has disappeared… I need to delete what I have already installed?

Agree with you. This is our little mistake.
Will be corrected tomorrow. Thanks!

Evgeny, yours is a great job! As users of Blend4Web, we all thank you!

The tutorial is great, but I have a note to do: The rotation above/below of the view (Y mouse axis?) should be "locked" with an angle of less than 180 °, otherwise the views can rotate 360 °, giving the impression of doing "cartwheels"… a sort of strange loop!

Hi Yuri.

What are the chances that these new features are applied to the version 2.74 of Blender?

For a greater vision, You should post these improvements in this official bf-committer's thread:
http://lists.blender.org/pipermail/bf-committers/2015-February/thread.html

P.S.: A huge thanks for your phenomenal contribution to Blender!

Thank you!!!