Displaced surface and Object not lining up

[ben_hamburg]

Thank you for the nightly build, great help in figuring out a good setup!
It also showed, that the displacement is working correctly if done right.
The reason it is not lining up in my scene must have to do something with the way I linked the grid with the boat in some way.
I linked the grid to a dummy object (via a position constraint with "keep initial offset" checked) that is moving straight forward and then i linked the Ship object to the dummy object, so i could animate some secondary movement.
This must somehow have messed with the displacement.
I still can´t get it to work, it´s probably best if I just start from scratch.
Unless I´m still doing something wrong in my workflow. For example:
Does the displacement need to be checked in the rendering Tab before or after simulation, so that the splashes and foam line up with the core fluid?
I´m currently simulating the grid without splash and foam and then resim.
This creates two extra objects (PG [Splashes] of system...etc).
Do I need to link those objects to the moving dummy object aswell?

I finally found the splash and particle count now aswell!

[Ivaylo Katev]

the displacement is added to the particles rendertime, so no need to enable it during the simulation.
the splash and foam nodes in the scene are just helper objects and do not play any role in the rendering, they exist only to allow us to use the "pick object" function of max and all the other parameter tools like undo, redo, save in file etc...

[ben_hamburg]

I see. So my issue with displacement must definitely be because of the way I linked the grid to the moving boat. I´ll try it again tomorrow, when I start on the fluid simulations.

[wxyz]

write to the support for nightly access, i hope tomorrow the ship scene will be included in the samples and when you install the product you can find it in my documents/phoenix fd/samples
about the displacement issue - the mesher takes the camera parameters and builds "infinite" surface only in the visible area. despite the fact that it is 20% wider, the displacement may push the border inside that visible area. that is very annoying, but we have no good solution yet. you can try to avoid it by rendering bigger area and cutting the frame, or by changing the seed of the ocean texture, or to change the waves direction.

Is the ship scene only in the maya nightlies?

[ben_hamburg]

We are using max and you can ask support nicely to send you the demo scene...

By the way: I figured out what caused the problem in the first place: I rotated the coordinates in the Phoenix Ocean texture map by 60° when testing to get different direction of the waves. Once I rotated those back to zero, the displacement lined up perfectly. So I guess it´s best to just build your scene and orient the grid in a way, that you get waves to flow in the direction you want, right?

[Ivaylo Katev]

the ship scene is in the max nightlies, as i know it is not converted to maya yet

[wxyz]

I get the nightlies, but can't seem to find it.

[Ivaylo Katev]

what samples you have?

[wxyz]

Beer, Fireplace, Choclate, Ink, Nuke,Submarine for VRay 3.0

[wxyz]

Is it only available in the phoenix nightlies for VRay 2.4?

[Ivaylo Katev]

it must be present in both the builds.

[wxyz]

What's the name of the file?

[Ivaylo Katev]

it's ship.max, but if you have submarine, the ship is not expected to be there. it replaces the submarine sample.
well, apparently the build system does not update the help section (it is separated from the sources), i will ask the people who maintain the build system

[Ivaylo Katev]

well, some changes in the build system left the helps without update, we have fixed this and tomorrow the ship scene must be in the package

[wxyz]

Thanks kind sir.