Matt Estela

mestela

About Me

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Matt Estela is VFX Lead in Residence at the UTS Animal Logic. Academy. Previously at Animal Logic he's been a VR Supervisor, Lighting Lead, Fx Lead, CG Supervisor, and is one of those annoying Houdini evangelists you don't want to sit next to on the bus.

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My Talks

obj-image ILLUME Webinar
“Non-VFX” VFX | Matt Estela
obj-image SIGGRAPH
Hypercubes for VR Noobs
obj-image SIGGRAPH
Learning Houdini: You're Doing It Wrong and How to do it Right
obj-image SIGGRAPH ASIA
Houdini: You're learning it wrong (no really this time)
obj-image Houdini HIVE Worldwide
Just the Tip(s)

My Tutorials

obj-image Beginner
Solaris LOPS
obj-image Intermediate
The Joy of VEX
obj-image Quickstart
Building Generator
obj-image Beginner
CG Wiki | Maya to Houdini
obj-image Quick Tips
CG Wiki | Quick Tips
obj-image Beginner
CG Wiki | Houdini 長いチュートリアル

Recent Forum Posts

Distance at Point along Curve 2020年7月6日7:02

Try a uvtexture sop in ‘arc length spline’ mode, set to run on points.

Controlling when/how updates/changes are propagated forward? 2020年7月6日2:32

Ben and I talk a little more about the same pipeline in this video:

https://youtu.be/ulkJEPflgvk [youtu.be]

But ultimately it's pretty simple; you can separate what you need in a shot from their locations on disk. So rather than saying

'c:/assets/box/v02/box_v02.usd'

you say

'asset=box&v=2'

Or in our case we default to

'asset=box&v=latest'

In terms of lighting shots being clobbered by upstream changes, yes, it's by design.

Dan and I have worked in studios that push always-latest, and in other studios that use strict versioned assets, also called ‘gated’ assets; ie, each department has to explicitly ‘open the gate’ to allow certain versions to flow downstream, and similarly downstream departments have to ‘open their gate’ to take assets into their realm.

Gating is safer, but you risk overly conservative asset updates. Departments hold onto assets for too long, suddenly there's a flood at the last minute, and lighting now have a nightmare trying to work out what changed between v02 and v90 that broke their setup.

Compared to a always-latest workflow, if you have tools that are designed to work procedurally (houdini, katana), they can be more robust with rapidly changing assets. But more importantly in a social engineering standpoint, if 30 shots suddenly stop rendering, it's noticed very quickly, the cause identified, a fix is rolled out.

We always have the option to lock versions if required, and we often do this in the last few weeks of production for lighting. But overall we've found its better to keep this ‘latest is greatest’ mentality, it keeps everyone honest, keeps the production moving.

-matt

Sphere with interconnecting nodes 2020年7月2日22:11