Read vertex colors from a Houdini alembic file

[alainfx]

Hello,

I'm trying to render the vertex colors that are present inside an alembic file (which was created by Houdini).

Using the Alembic import system (AbcImport.mll) I get the colors (thanks to SOUP plug-in), but no motion blur ("has changing number of vertices").

So I tried VRay proxy :
-Motion Blur works all right !
-But no colors appear.

Here is what I tried :
Create a VRayMtl material and assign it to the proxy that loads the alembic file.
Connect a VRayVertexColors texture to the VRayMtl color, set the "type" to "Set Name" and in the text field below type the name of the color set (in my case it is Cd).
I'm sure the color set exists, as this appears in the Color Set Editor, when I select the proxy : Cd(RGBA)
After render, all that appears is the Default Color that is set in VRayVertexColors.

I'm using this version of VRay for maya :
VRay build 23639, "Nightly" Nightly (not the stable branch), 24 septembre 2013.


Any idea ?

Thanks.

[vlado]

Can you get me the .abc file so that I can play with it?

Also, is the nightly a 2.x nightly or a 3.x one? It might be that only the 3.x nightlies suppport this.

Best regards,
Vlado

[alainfx]

Here is an alembic file, animated from frames 62 to 67 :
https://www.dropbox.com/s/wooyr5w6db...e.062to067.zip

We use a 2.x nightly.

Thanks.

[tashko.zashev]

Hi,

The nightly build 2.x from 24 September 2013 doesn't include some fixes, please try to update your V-ray build to a more recent version (2.x)

Attaching the result:


V-Ray 2.x build from 10.05.2014

[alainfx]

Thank you !