by yfripp » Fri Jul 07, 2017 7:22 am
yfripp
Fri Jul 07, 2017 7:22 am
Thank you for the quick response. Importing the VDB into freshly opened maya scene works and gives me access to the volume channels.
There is still a bug that occurs if you create the volume node through the hypershade in a new maya instance, Then point it to the VDB those channels are not selectable even if you the go and try to import a vdb through the import menu afterwards.
steps to reproduce.
1. Open a fresh maya
2. open hypershade and create a volume node
3. select a vdb sequence
No drop down menus will be present on each of the channels.
Workaround: Do not use the hypershade to create volume Nodes, use the import menu from the Maya File dialog.
if you import a VDB through the import menu it appears to fill all the channels available from the selected vdb and keeps that information in Maya i.e if you create a new scene in a Maya session that has already had a vdb imported into it and create a volume node through the hypershade the dropdown menus are available from the previously imported vdb. I would assume that the octane volume node is not re-reading the available channels from the VDB when you select the file in the browse dialog of the volume node, hence once the node is created it doesn't re-read any channel data from the selected vdb not updating the available channels. I can see this causing issues in the future if you were to select a different vdb from another source with different channel data (a vdb from houdini for example) I dont have such a vdb to test my assumption unfortunately.
Also thank you for the link to the documentation I didn't know that existed.
Thanks Again!
Juri
Windows 10 | i7 4770K | Titan X | 32gb