Phoenix - A couple of questions

[stevesideas]

1. Does the latest Phoenix build include the crests texture for infinite ocean ? Are there any example scenes that can be downloaded ?
2. If I wanted to have a shoreline where waves lapped (I think crash wouldn't be possible) the shore and the rest of the ocean was infinite how would I go about this ? Would I use a mix map with a gradient map based on vector colors and then change the offset ?

[Ivaylo Katev]

i suppose the crests texture is the ocean texture?
about the shore, you mean to use only displacement with no simulation? sounds like a hard task, bot see this video, that is what you can achieve with simulation, but this is not infinite.
you can try to use multiple rendering copies, if the camera is placed properly it may work

[stevesideas]

Not the ocean displacement texture...I was talking about the texture for the ocean where the peaks of the waves were white. I'm pretty sure I saw some early renders of this for Phoenix.

[Ivaylo Katev]

ah yes, it's called "phoenixfoamtex", you need to use it for the far points but not in the near points where the simulated foam will exist?

[oophus]

Here I've used the foamtex.
It works for added detail.

[stevesideas]

Is the phoenixfoamtex available in latest release or just nightlies ?

[Svetlin.Nikolov]

Hey,

Only in the nightlies.

Cheers!

[möbius]

May i ask what ist the proper way to use the FoamTex? where should i plug it in?

[Svetlin.Nikolov]

Hello,

Here is an example setup:



Your ocean tex goes into the foam tex and the result is used to blend between a water and a foam material.

Cheers!

[rporter8555]

Pardon my dumb question, but when I try the material above I get an error about the blend being incompatible with vray.
How do I build this using VrayBlendMtl ?
Is this correct? And is this the material I apply to the ocean surface sim?

Thanks,
Ron Porter

[joconnell]

Heya Folks!

I'm having a slightly different issue:

When I use the foam map directly as a colour in a vray light material with red as the light colour, I get a nice soft blend at the edges where it fades off. If I use the exact same map as a blend material mask between blue water and white foam I get the harsh result on the right hand side. The map preview at the bottom is the output of the foam tex and it's parameters - it's very harh edged compared to the result in the light material - any idea why tho would be?



Cheers!

John

[Svetlin.Nikolov]

Hey guys, sorry for the delayed reply!

So it seems that as of this May, V-Ray has deprecated the Blend material and you won't be able to use it unless you lay out your material setup outside of V-Ray. The VRayBlendMtl doesn't seem to accept the alpha that the Phoenx Foam tex produces, so you are going to have to extract the alpha manually and plug it as a blend mask. In this setup I used the Color Correction map to make a color from the Foam alpha and you also have to set the Alpha to One in order to make it work. I plugged the Ocean material as a Base and the Foam material as the first Coat. Note that a Standard material cannot be plugged as an input to the VRayBlendMtl - you have to use a VRayMtl:

[joconnell]

That sorts me out Svetlin, much appreciated!

[Ivaylo Katev]

just few words why the foam map cant be used directly in the vray blend material.
not sure, but as i remember the difference between both the blend materials is what component of the mask texture they are using as blend amount, i think vray blend material uses the color brightness, in contrast the max blend material uses an internal channel called "mono" (it's not the alpha!), that allows single texture to provide both the blend amount and color.

[joconnell]

Congrats on all you've done over the past while Ivaylo, the products are working really well!

On an unrelated scans note if you don't mind - the cameras you're using in the scanners, what methods were you using to calibrate the output for those so the luma and chroma is correct?