Dynamo: Preview Upstream

[vykrum]

Dynamo version

2.0.0

Operating system

Windows

What did you do?

Wanted to limit visibility of graphics in Watch 3D node

What did you expect to see?

_Preview Upstream_ in the node right click menu

What did you see instead?

No such option anymore

[QilongTang]

@vykrum Please check out our release note for daily builds here at http://dynamobim.org/resuming-pre-release-builds/, Preview Upstream is deprecated

[vykrum]

@QilongTang So Dynamo lost the ability to do something like this? ....

[mjkkirschner]

@QilongTang @Racel I think we need another discussion around this - it looks like in the current implementation turning regular preview on and off also effects all downstream watch3d nodes, making them useless for isolating geometry.

I think we need to investigate if we can turn preview off for a specific node - for instance, a point.byCoorinates() node, but then when attaching a watch3d, the points should still show up in that watch3d node. This does not currently happen and is not what we discussed when we talked about removal of previewUpstream. Either it's a change in behavior or we had a misunderstanding of the previous behavior.

[mjkkirschner]

Also, codeblocks have odd behavior in my opinion when using watch 3d nodes - the entire codeblock output value is displayed, but I would assume just the port actually plugged into the watch3d node would be displayed - even when using an intermediate node.

[mjkkirschner]

tracked:
https://jira.autodesk.com/browse/QNTM-2631
most likely will not bring preview upstream back but modify watch3d behavior to make it unnecessary.

[vykrum]

@mjkkirschner _Preview Upstream_, in any case was relevant only while using _Watch 3D_, so makes sense modifying _Watch 3D_ instead of having _Preview Upstream_ on every node.

While _Watch 3D_ probbly isn't used much anymore, since we now have Background Preview, it is still needed to capture graphics with _Export Workspace As Image_