Thx a lot.
I have tried out the "OS_Water" shader. But I don't understand what I shoult enter in the "OS_WATER_INIT_action. What should be on the image of the blendmap ? the places, where the water is connected with the coast? when yes, which colors should I take for that? And what do you mean wit ReflectRes and RefractRes. I have tried out some numbers, but I always recived the message, that ther invalid arguments in it.

I hope you can help me...

@krial057: Just use my water.c example code...

I just uploaded an updated version which should run a bit faster. Also the postprocessing effects should now work independant from the views arc.
You can download it here: http://www.slindev.com/files/projects/Shaders!%20V2.zip

I'm still getting the error:
"Error E1515
Invalid arguments in OS_Water_RefractView_init".
I can't see the water too. I can just reconize a blur-effect, but it is everything transparent (I also tested it by including your main.c... same error-message )

missing pointer to the render target....I'm guessing.

is there anyway to reupload this stuff?

http://files.slindev.com/codes/Shaders!%20V2.zip

Edit: thank you very much, very easy to use and fast enough.

Slin, sorry for double post, but I've found some problem with motion blur. When I limit fps at 60, it blurs to much (changed in loop wait(-0.001);), but when I remove fps_max it works as it should. How can I solve this?

I added the link to the Gamestudio Wiki
http://www.opserver.de/wiki/index.php/Shaders