Apr 29

Help Needed: Generating Random Numbers with Expressions and Fun with Holograms

Posted in: NUKE from The Foundry
Hi guys,

In my latest project I’m trying to create a Hologram (as in Star Wars, think Princess Leia being projected by R2D2). I’m planning on having a lot of flickering on the Hologram, but I’m having trouble generating and controlling the values required.

For example, I’m trying to animate the opacity between 25% and 100% (Mix on the merge node) using the following expression:

value = 25 + ((100 – 25) * random(1))

I think I’m doing something fundamentally wrong here, but I can’t figure out what. Google results haven’t been particularly insightful, neither has the manual.

Any help on the matter would be appreciated.

Also if anyone has any ideas for helping generate a convincing looking hologram in nuke, those tips are welcome as well. iDistort node is really helping, but the overall result can always use more variation. 🙂

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