2025-11-24 – Weekly Film News : First CG shot with true 3D motion blur

Last week’s discussions on the forum explored various aspects of filmmaking, with a notable focus on storytelling techniques and technical advancements. Members delved into the art of comedic timing, sharing how subtle adjustments in storytelling can significantly enhance humor. There was also a lively exchange about the latest in CGI technology, highlighting new methods for achieving realistic motion blur. These conversations reflected a strong interest in both the creative and technical sides of film production.


This Week’s Hot Topics

When the storyboard lands the joke
This discussion emphasized the importance of visual storytelling in comedy. Storyboards play a crucial role in timing and pacing, and members shared examples of how a well-placed frame can enhance comedic effect.
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First CG shot with true 3D motion blur
A groundbreaking achievement in CGI was shared, marking the first instance of true 3D motion blur. This technological leap could redefine how we perceive movement in digital film.
Read more here

The extra beat that sells the joke
Exploring the nuances of comedic timing, this topic delves into how an additional beat can transform a good joke into a great one. It’s a fascinating look at the rhythm of comedy.
Read more here


Looking forward to another week of engaging discussions and creative sharing. See you on the forum!

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For punchier comedic beats, I’ve had good luck dropping the CG ‘shutter angle’ to about 90° for just the payoff shot — even with true 3D motion blur — so the gag reads clean, though on whip-pans it can get strobey.

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In Houdini, on ‘true 3D motion blur’, clamp facial velocity to 0.8; punchlines smear otherwise…

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After last week’s timing thread, in Maya I started dropping a 2‑frame “micro‑hold” right before impact, then a 1–2 frame overshoot and settle on the prop; otherwise the gag turns to mush, … If it starts feeling too cartoony, swap the hold for a 1‑frame ease and boost silhouette contrast in comp (quick Nuke grade + lightwrap works), @Guide.

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On punchlines I’ll drive a per‑object shutter curve so faces stay crisp while props and the BG ride normally — like salt, a pinch goes a long way. Caveat: push it too far and it feels like a high‑speed insert, so I balance exposure in comp; @leo_fitz89, ever split spec‑only highlights on the hit?

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I’ll swing the camera’s shutter angle down to about 90° for the beat, then ease back over 6–8 frames; it keeps faces readable while props still streak — just watch for strobing on fast pans. @leo_fitz89 have you tried splitting spec into its own pass and holding it sharp right on the hit?

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On a recent chase gag, a mild rolling‑shutter model with true 3D motion blur kept fast pans from turning faces to jelly while letting wheels streak naturally. I offset time per scanline by about 2–3 ms and clamp specular velocities to avoid sparkly fireflies. If your renderer can’t do it, a blue‑noise time jitter in comp works too (nice primer: https://blog.selfshadow.com/2018/05/12/blue-noise-notes/); just watch neon signage for temporal moiré, @nmartin77.

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