[Nuno Faria]

I can't doing that.

Nuno, can you share your scene file (.max) with just water and pool object and material ?

yes, sure... i'll upload it in an hour or so.

[Nuno Faria]

ok....here is the max file (max9)
http://www.virtuastudio.com/MR_Forum/ACS_Test_Scene.zip

and here is another render SL12.92 (about 1 hour)



i hope this helps to understand better the tip.

best regards,
nuno

[sandykoufax]

Thank you very much, Nuno.

[numerobis]

nice solution for caustics, but the shadow looks wrong to me... normaly there shouldn't be any visible shadow at the surface of clear pool water. maybe this pool is a saltwater pool with very salty water?

[JTB]

Thank you very much for the max file, very nice tutorial...

[sandykoufax]

I think I found my problem.

The water mesh is slightly beneath the ags mesh.

Right?

1. same position



2. water mesh(invisible to camera) is lower position

[sandykoufax]

Now I have to go sleep.

Here is 4 AM.

[Nuno Faria]

I think I found my problem.

The water mesh is slightly beneath the ags mesh.

yes....thats it

[misterasset]

Ahh, thanks for looking into this guys. I'm ashamed to say that I'm the one who raised the question and then didn't investigate it. But thanks for looking into it.

[sandykoufax]

Thanks for share your scene, Nuno.

It works fine.

and I had another test for underwater scene.





In case of underwater, it seems that the only one mesh for water is better than two (ags+water invisible)

[Nuno Faria]

hi sandy,
nice underwater tests!

yes, thats the problem with ags... for these kind of scenes (underwater), i agree thats better to use only one mesh without ags... since your camera is under the mesh, caustics show fast.
only use "ACS" technic if you are seeing caustics through the mesh.

i'm glad you're testing it , maybe togheter, we come to a better solution!

best regards,
nuno

[sandykoufax]

[jurX]

....yes ....nice test!