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[odnorf]

If i decided to do a 2d animation, how big can it be if it has about 20 frames? (in terms of performance)

That depends on the machines you want your game to be playable at. Other than that there are no hardcoded limits in wme but keep in mind that theora has problems in keeping it's framerate with big resolutions.

20fps seems like an overkill for a water animation imo

On the other hand, i think the other possible way is maybe with a plugin 

This plugin by metamorphium does exactly that.
http://forum.dead-code.org/index.php?topic=1197.0
He hasn't say anything about it's licence thought. So, if you are interested in using it in a game I'd suggest to contact him first.

EDIT: Some of the previous answers in this topic don't represent the current situation because this thread is an old one. Since then Mnemonic has greatly expanded the plugin structure of wme and meta has released his displacement plugin.

[leucome]

I'm going to use 3d model for water, Using a grid wire surface, put a bone at each vertex and using a noise to move the bones(in 3ds max). And with new .x format that will be possible to add a moving texture on that 3d model too..

ok it's just a teory i'm sure that will work..

[Antimony]

Hi all... i find a free tool called Sqirlz Water Reflections. With this tool you can add pools of water to an image.You can choose from a variety of ripples, and control details such as wave size and perspective.The pools can be of any shape. Version 1.3 adds new controls and effects, including reflection coloring, smoothing, texture, and flow also more flexibility over which parts of the image are reflected. Animations can be saved as Macromedia Flash (SWF) files, animated GIF files, AVI video clips, and sets of bitmap, JPEG and TIFF files.

Find it here :
http://www.xiberpix.com/ (some other free stuff also here)

BEFORE :



AFTER :



not  real-time water effect but maybe usefull...
...your opinion...?

[shuin]

Hiya!

Since my scenes will be full of water and i'm a beginner in using WME, i want to know if i understood correctly.

to have animated water in your scene you must either:
1. make an animation of the water effect and play it as a theora entity over the static image of the water (is this the correct way or did i get it wrong?)
2. use the displacement plugin
3. treat water as a realtime 3d object like leucome said (did it work? anybody tried it? is it possible?)

[Amo]

The 3d thing is really needless and I would not do that in this way. It is really uneffective and if you could get it to work, it will kill WME because of its huge resources needed.

For Max try the following:
Create a plane with many faces (e.g. 50 x 50 )
convert to editable poly
select the whole object
add "noise" modifier
play around with the settings.

After texturing the plane you can render 5 pictures with different noise settings and use them as sprites.
Thats how I would do.