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Alex Petrov avatar image
Alex Petrov asked

How to use an operator to override light settings in htoa

Hi there, I just discovered the functionality of Arnold operators in Houdini and was able to tweak some object parameters like 'ar_smothing', material assignment, etc but I was not able to override any Light parameters following the same principles, as well as changing a camera. What am I missing?

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htoalighthoudinioperators
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Slava Sych avatar image
Slava Sych answered

delete "/*" on end in selection, this is not need for light sourcehoudini-djiixuz4uo.jpg


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Thank you, it worked! But is it possible to change the camera the same way? Still doesn't work for me...

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The Arnold options node usually does not have a name (because there's just one options node in an Arnold scene).

And operators may or may not work on the options node, depending on what you are trying to set. The options have to be loaded before the rest of the nodes are processed.


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Alex Petrov avatar image Alex Petrov Stephen Blair ♦♦ ·

Well, I thought of switching from one camera or angle of view to the other on the fly, during an IPR session, as you do in Katana. But here I guess you have to use a separate OUT node for each shot and each camera.

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